Emcor Group, Inc,
Fiscal Year 2022.

Accounts Receivable and Allowance for Credit Losses Accounts receivable are recognized in the period we deliver goods or provide services to our customers or when our right to consideration is unconditional. The Company maintains an allowance for credit losses to reduce outstanding receivables to their net realizable value. A considerable amount of judgment is required when determining expected credit losses. Estimates of such losses are recorded when we believe a customer, or group of customers, may not be able to meet their financial obligations due to deterioration in financial condition or credit rating. Factors relevant to our assessment include our prior collection history with our customers, the related aging of past due balances, projections of credit losses based on historical trends in credit quality indicators or past events, and forecasts of future economic conditions. In addition to monitoring delinquent accounts, management reviews the credit quality of its receivables by, among other things, obtaining credit ratings of significant customers, assessing economic and market conditions, and evaluating material changes to a customer's business, cash flows, and financial condition. At December 31, 2022 and 2021, our accounts receivable of $2,567.4 million and $2,204.5 million, respectively, were recorded net of allowances for credit losses of $22.4 million and $23.5 million, respectively. The decrease in our allowance for credit losses was attributable to the write-off of specific amounts deemed uncollectible, partially offset by the provision for credit losses recorded during 2022. We have adjusted our allowance for credit losses during 2022 to account for the impact of changing economic conditions, including rising interest rates. Allowances for credit losses are based on the best facts available and are reassessed and adjusted on a regular basis as additional information is received. The provision for credit losses during 2022, 2021, and 2020 amounted to approximately $5.2 million, $8.0 million, and $3.3 million, respectively. The decrease in the provision for credit losses for the year ended December 31, 2022, when compared to the year ended December 31, 2021, was a result of the impact, in 2021, of $5.8 million of reserves established in connection with two customer bankruptcies within our United States industrial services segment. Such reduction was partially offset by incremental expense taken during 2022, which primarily resulted from the aforementioned change in economic conditions. Should anticipated collections fail to materialize, or if future economic conditions compare unfavorably to our forecasts, we could experience an increase in our allowances for credit losses. For example, if economic conditions were to significantly deteriorate, such as to those experienced during the last global financial crisis, the portion of our allowance for credit losses, which is estimated based on our historical credit loss experience, could increase by up to approximately $12.5 million. 34

Impact of Acquisitions In order to provide a more meaningful period-over-period discussion of our operating results, we may discuss amounts generated or incurred (revenues, gross profit, selling, general and administrative expenses, and operating income) from companies acquired. The amounts discussed reflect the acquired companies' operating results in the current reported period only for the time period these entities were not owned by EMCOR in the comparable prior reported period. During 2022, we acquired six companies for total consideration of $100.8 million. Such acquisitions include: (a) a company that provides electrical construction services in the Greater Boston area, the results of operations of which have been included in our United States electrical construction and facilities services segment, and (b) five companies that enhance our presence in geographies where we have existing operations, the results of operations of which were de minimis, consisting of: (i) two companies that provide fire protection services in the Northeastern and Southern regions of the United States, respectively, and that have been included within our United States mechanical construction and facilities services segment, (ii) two companies that specialize in either building automation and controls or mechanical services in the Southwestern and Southern regions of the United States, respectively, and that have been included within our United States building services segment, and (iii) a company that provides electrical construction services in the Midwestern region of the United States and that has been included within our United States electrical construction and facilities services segment. 23 We acquired eight companies during 2021 for total consideration of $131.2 million. Such acquisitions include: (a) two companies, the results of operations of which were de minimis, included within our United States mechanical construction and facilities services segment, consisting of: (i) a company that provides mechanical services within the Southern region of the United States and (ii) a company that provides fire protection services in the Midwestern region of the United States, (b) two companies that provide electrical construction services for a broad array of customers in the Midwestern region of the United States, the results of operations of which have been included in our United States electrical construction and facilities services segment, and (c) four companies included within our United States building services segment, consisting of: (i) a company that provides mobile mechanical services across North Texas and (ii) three companies, the results of operations of which were de minimis, that enhance our presence in geographies where we have existing operations and provide either mobile mechanical services or building automation and controls solutions. Companies acquired in 2022 and 2021 generated incremental revenues of $149.7 million and incremental operating income of $3.9 million, inclusive of $7.3 million of amortization expense associated with identifiable intangible assets, for the year ended December 31, 2022.

Goodwill, Identifiable Intangible Assets, and Other Long-Lived Assets Goodwill As of December 31, 2021 and 2020, we had goodwill of $890.3 million and $851.8 million, respectively, arising out of the acquisition of businesses. Goodwill is not amortized but instead allocated to its respective reporting unit and evaluated for impairment annually, or more frequently if events or circumstances indicate that the carrying amount of goodwill may be impaired. We have determined that our reporting units are consistent with the reportable segments identified in Note 18 - Segment Information of the notes to consolidated financial statements included in Item 8. Financial Statements and Supplementary Data. As of December 31, 2021, approximately 17.9% of our goodwill related to our United States electrical construction and facilities services segment, approximately 34.2% related to our United States mechanical construction and facilities services segment, approximately 35.1% related to our United States building services segment, and approximately 12.8% related to our United States industrial services segment. We performed our annual impairment assessment of all reporting units as of October 1, 2021 and determined there was no impairment of goodwill. Based on these impairment assessments, the fair values of our United States electrical construction and facilities services segment, our United States mechanical construction and facilities services segment, our United States building services segment, and our United States industrial services segment exceeded their carrying values by approximately $1,516.1 million, $2,772.7 million, $784.2 million, and $40.6 million, respectively. In completing our annual impairment assessment, we determined the fair value of each of our reporting units using an income approach whereby fair value was calculated utilizing discounted estimated future cash flows, assuming a risk-adjusted industry weighted average cost of capital. The weighted average cost of capital used in our annual impairment testing was 10.4% for our United States construction segments and our United States building services segment, and 11.3% for our United States industrial services segment. These weighted average cost of capital estimates were developed with the assistance of an independent third-party valuation specialist and reflect the overall level of inherent risk within the respective reporting unit and the rate of return a market participant would expect to earn. Our cash flow projections were derived from our most recent internal forecasts of anticipated revenue growth rates and operating margins, with cash flows beyond the discrete forecast period estimated using a terminal value calculation which incorporated historical and forecasted trends, an estimate of long-term growth rates, and assumptions about the future demand for our services. The perpetual growth rate used for our annual testing was 2.0% for all of our reporting units. Due to the inherent uncertainties involved in making estimates, our assumptions may change in future periods. Estimates and assumptions made for purposes of our goodwill impairment testing may prove to be inaccurate predictions of the future, and other factors used in assessing fair value, such as the weighted average cost of capital, are outside the control of management. Unfavorable changes in certain of these key assumptions may affect future testing results. For example, keeping all other assumptions constant, a 50 basis point increase in the weighted average cost of capital would cause the estimated fair values of our United States electrical construction and facilities services segment, our United States mechanical construction and facilities services segment, our United States building services segment, and our United States industrial services segment to decrease by approximately $103.6 million, $185.5 million, $74.5 million, and $25.9 million, respectively. In addition, keeping all other assumptions constant, a 50 basis point reduction in the perpetual growth rate would cause the estimated fair values of our United States electrical construction and facilities services segment, our United States mechanical construction and facilities services segment, our United States building services segment, and our United States industrial services segment to decrease by approximately $52.4 million, $95.9 million, $35.8 million, and $9.5 million, respectively. Given the amounts by which the fair value exceeds the carrying value for each of our reporting units, the decreases in estimated fair values described above would not have significantly impacted the results of our impairment tests. Further, for each of our reporting units, other than our United States industrial services segment, a 10% decline in the estimated fair value of such reporting unit, due to other changes in our assumptions, including forecasted future cash flows, would not have significantly impacted the results of our impairment tests. In the case of our United States industrial services segment, however, such a 10% decrease would cause the estimated fair value of this reporting unit to approximate its carrying value.

2022% of Total 2021% of Total Revenues from unrelated entities: United States electrical construction and facilities services$2,433,114 22 %$2,029,893 21 %

Cost of sales and gross profit The following table presents cost of sales, gross profit (revenues less cost of sales), and gross profit margin (gross profit as a percentage of revenues) for the years ended December 31, 2022 and 2021 (in thousands, except for percentages):

Selling, general and administrative expenses The following table presents selling, general and administrative expenses and SG&A margin (selling, general and administrative expenses as a percentage of revenues) for the years ended December 31, 2022 and 2021 (in thousands, except for percentages):

20222021 Selling, general and administrative expenses$1,038,717 $970,937 SG&A margin9.4 %9.8 % Our selling, general and administrative expenses for the year ended December 31, 2022 were $1,038.7 million compared to selling, general and administrative expenses of $970.9 million for the year ended December 31, 2021. For the year ended December 31, 2022, selling, general and administrative expenses included $17.2 million of incremental expenses directly related to companies acquired in 2022 and 2021, including amortization expense attributable to identifiable intangible assets of $4.5 million. Excluding incremental expenses from businesses acquired, our selling, general and administrative expenses increased by $50.6 million for the year ended December 31, 2022. The organic increase in selling, general and administrative expenses was primarily attributable to an increase in: (a) salaries and related employment expenses, largely as a result of an increase in headcount to support our organic revenue growth, (b) incentive compensation expense within those of our reportable segments which had higher operating results than in the prior year, (c) travel and entertainment expenses, given a resumption in travel and business meals as COVID-19 related restrictions have eased, (d) rent and other occupancy costs driven by: (i) the expansion or addition of certain fabrication facilities, which support our operations, and (ii) the impact of inflation on the real estate market, and (e) computer hardware and software costs, as a result of various information technology and cybersecurity initiatives currently in process. Selling, general and administrative expenses as a percentage of revenues were 9.4% and 9.8% for 2022 and 2021, respectively. The year-over-year decrease in SG&A margin was largely a result of an increase in revenues without a commensurate increase in overhead costs, as we were able to leverage our existing overhead cost structure.

Operating income (loss) The following table presents by segment our operating income (loss) and each segment's operating margin (operating income (loss) as a percentage of such segment's revenues) for the years ended December 31, 2022 and 2021 (in thousands, except for percentages):

2022% ofSegmentRevenues 2021% ofSegmentRevenues Operating income (loss): United States electrical construction and facilities services$148,728 6.1 %$169,355 8.3 %

Other items Interest expense was $13.2 million and $6.1 million for 2022 and 2021, respectively, and interest income was $2.8 million and $0.9 million for 2022 and 2021, respectively. The increase in both interest expense and interest income for 2022 resulted from higher average interest rates when compared to 2021. In addition, the increase in interest expense was attributable to greater average outstanding borrowings year-over-year. Our income tax provision for the year ended December 31, 2022 was $152.6 million, based on an income tax rate of 27.3%, compared to an income tax provision and an income tax rate of $145.6 million and 27.5%, respectively, for the year ended December 31, 2021. The increase in our income tax provision for 2022 was due to increased income before income taxes, while the slight decrease in our income tax rate for 2022 was attributable to the favorable impact of certain discrete tax items.

December 31, 2022% of TotalDecember 31, 2021% of Total Remaining performance obligations: United States electrical construction and facilities services$2,014,079 27 %$1,224,577 22 %

Liquidity and Capital Resources The following section discusses our principal liquidity and capital resources, as well as our primary liquidity requirements and sources and uses of cash. We are focused on the efficient conversion of operating income into cash to provide for the Company's material cash requirements, including working capital needs, investment in our growth strategies through business acquisitions and capital expenditures, satisfaction of contractual commitments, including principal and interest payments on our outstanding indebtedness, and shareholder return through dividend payments and share repurchases. We strive to maintain a balanced approach to capital allocation in order to achieve growth, deliver value, and minimize risk. Management monitors financial markets and overall economic conditions for factors that may affect our liquidity and capital resources and adjusts our capital allocation strategy as necessary. Negative macroeconomic trends could have an adverse effect on future liquidity if we experience delays in the payment of outstanding receivables beyond normal payment terms, an increase in credit losses, or significant increases in the price of commodities or the materials and equipment utilized for our project and service work, beyond those experienced to date. In addition, during economic downturns, there have typically been fewer small discretionary projects from the private sector and our competitors have aggressively bid larger long-term infrastructure and public sector contracts. Our liquidity is also impacted by: (a) the type and length of construction contracts in place, as performance of long duration contracts typically requires greater amounts of working capital, (b) the level of turnaround activities within our United States industrial services segment, as such projects are billed in arrears pursuant to contractual terms that are standard within the industry, and (c) the billing terms of our maintenance contracts, including those within our United States and United Kingdom building services segments. While we strive to negotiate favorable billing terms, which allow us to invoice in advance of costs incurred on certain of our contracts, there can be no assurance that such terms will be agreed to by our customers. As of December 31, 2022, we had cash and cash equivalents, excluding restricted cash, of $456.4 million, which are maintained in depository accounts and highly liquid investments with original maturity dates of three months or less. Both our short-term and long-term liquidity requirements are expected to be met through our cash and cash equivalent balances, cash generated from our operations, and, as necessary, the borrowing capacity under our revolving credit facility. Our credit agreement provides for a $1.30 billion revolving credit facility, for which there is $1.23 billion of available capacity as of December 31, 2022. Refer to Note 9 - Debt of the notes to consolidated financial statements included in Item 8. Financial Statements and Supplementary Data for further information regarding our credit agreement. Based upon our current credit rating and financial position, we can also reasonably expect to be able to secure long-term debt financing if required to achieve our strategic objectives; however, no assurances can be made that such debt financing will be available on favorable terms. We believe that we have sufficient financial resources available to meet our short-term and foreseeable long-term liquidity requirements.

Decrease in cash, cash equivalents, and restricted cash$(365,500)$(80,994) For the year ended December 31, 2022, our cash balance, including cash equivalents and restricted cash, decreased by $365.5 million from $822.6 million at December 31, 2021 to $457.1 million at December 31, 2022. Changes in our cash position from December 31, 2021 to December 31, 2022 are described in further detail below. For a discussion of the changes in our cash position from December 31, 2020 to December 31, 2021, refer to the Liquidity and Capital Resources section included in Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations of our Form 10-K for the year ended December 31, 2021. Operating Activities - Operating cash flows generally represent our net income as adjusted for certain non-cash items and changes in assets and liabilities. For 2022, net cash provided by operating activities was approximately $497.9 million compared to approximately $318.8 million of net cash provided by operating activities in 2021. The $179.1 million increase in operating cash flows during 2022, when compared to 2021, was primarily a result of the collection of advanced billings on certain of our uncompleted construction projects, as evidenced in part by the growth in our contract liabilities, net of the increase in outstanding accounts receivable. 30 Investing Activities - Investing cash flows consist primarily of payments for the acquisition of businesses, capital expenditures, and proceeds from the sale or disposal of property, plant, and equipment. For 2022, we utilized approximately $140.8 million of cash for investing activities compared to $153.1 million in 2021. The decrease in investing cash outflows year-over-year was primarily driven by a decrease in payments for business acquisitions, partially offset by higher capital expenditures used to invest in organic growth. Financing Activities - Financing cash flows consist primarily of the issuance and repayment of short-term and long-term debt, repurchases of common stock, payments of dividends to stockholders, and the issuance of common stock through certain equity plans. Net cash used in financing activities for 2022 was $710.1 million compared to $245.5 million in 2021. The increase in cash used in financing activities in 2022, when compared to 2021, was primarily due to the increase in funds used for the repurchase of our common stock. During the year ended December 31, 2022, cash payments related to share repurchases were $660.6 million compared to $195.5 million for the year ended December 31, 2021. The timing of common stock repurchases is at management's discretion subject to securities laws and other legal requirements and depends upon several factors, including market and business conditions, current and anticipated future liquidity, share price, and share availability, among others. For additional detail regarding our share repurchase program, refer to Note 12 - Common Stock of the notes to consolidated financial statements included in Item 8. Financial Statements and Supplementary Data. We currently pay a regular quarterly dividend of $0.15 per share. For the years ended December 31, 2022 and 2021, cash payments related to dividends were $27.2 million and $28.2 million, respectively. Subsequent to December 31, 2022, our Board of Directors announced its intention to increase the regular quarterly dividend to $0.18 per share commencing with the dividend to be paid in April 2023. Our credit agreement places limitations on the payment of dividends on our common stock. However, we do not believe that the terms of such agreement currently materially limit our ability to pay such quarterly dividends for the foreseeable future. Effect of Exchange Rate Changes on Cash, Cash Equivalents, and Restricted Cash - We are exposed to fluctuations in foreign currency exchange rates, almost entirely with respect to the British pound. Therefore, the $11.2 million variance between the years ended December 31, 2022 and 2021 was a direct result of unfavorable exchange rate movements for the British pound versus the United States dollar.

Material Cash Requirements from Contractual and Other Obligations As of December 31, 2022, our short-term and long-term material cash requirements for known contractual and other obligations were as follows: Outstanding Debt and Interest Payments - As of December 31, 2022, there were no direct borrowings outstanding under our revolving credit facility and the amount outstanding under our term loan was $242.8 million. We are required to make annual principal payments on our term loan of $13.9 million on December 31 of each year until maturity. All remaining unpaid amounts are due on March 2, 2025, when the credit agreement governing our term loan and revolving credit facility expires. Until such time, we are required to make periodic interest payments on our outstanding indebtedness. Future interest payments will be determined based on prevailing interest rates during that time, which are anticipated to increase in the near term. Refer to Note 9 - Debt of the notes to consolidated financial statements included in Item 8. Financial Statements and Supplementary Data for further detail of our debt obligations, including our term loan and revolving credit facility. Operating and Finance Leases - In the normal course of business, we lease real estate, vehicles, and equipment under various arrangements which are classified as either operating or finance leases. Future payments for such leases, excluding leases with initial terms of one year or less, were $325.7 million at December 31, 2022, with $78.3 million payable within the next 12 months. Refer to Note 16 - Leases of the notes to consolidated financial statements included in Item 8. Financial Statements and Supplementary Data for further detail surrounding our lease obligations and the timing of expected future payments. Open Purchase Obligations - As of December 31, 2022, we had $2.24 billion of open purchase obligations, of which payments totaling approximately $1.94 billion are expected to become due within the next 12 months. These obligations represent open purchase orders to suppliers and subcontractors related to our construction and services contracts. These purchase orders are not reflected in the Consolidated Balance Sheets and are not expected to impact future liquidity as amounts should be recovered through customer billings. Insurance Obligations - As described in further detail in Note 2 - Summary of Significant Accounting Policies of the notes to consolidated financial statements included in Item 8. Financial Statements and Supplementary Data, we have loss payment deductibles and/or self-insured retentions for certain insurance matters. As of December 31, 2022, our insurance liabilities, net of estimated recoveries, were $201.5 million. Of this net amount, approximately $38.8 million is estimated to be payable within the next 12 months. Due to many uncertainties inherent in resolving these matters, it is not practical to estimate these payments beyond such period. To the extent that the amount required to settle claims covered by insurance continues to increase, the cost of our insurance coverage, including premiums and deductibles, is likely to increase. 31 Retirement Plan Obligations - As of December 31, 2022, expected future payments relating to our defined benefit post retirement plans were approximately $1.5 million per year. We provide funding to our post retirement plans based on at least the minimum funding required by applicable regulations. In determining the minimum funding required, we utilize current actuarial assumptions and exchange rates to forecast amounts that may be payable. In our judgment, minimum funding estimates cannot be reliably estimated beyond a five-year time horizon. Refer to Note 14 - Retirement Plans of the notes to consolidated financial statements in Item 8. Financial Statements and Supplementary Data for further information about our post retirement plans. Contingent Consideration Liabilities - We have incurred liabilities related to contingent consideration arrangements associated with certain acquisitions, payable in the event discrete performance objectives are achieved by the acquired businesses during designated post-acquisition periods. The aggregate amount of these liabilities can change due to additional business acquisitions, settlement of outstanding liabilities, changes in the fair value of amounts owed based on performance during such post-acquisition periods, and accretion in present value. As of December 31, 2022, the present value of expected future payments relating to these contingent consideration arrangements was $16.9 million. Of this amount, $10.0 million is estimated as being payable during 2023, with the remainder due pursuant to the terms of our contractual agreements some of which extend through 2025.

We do not have any other material financial guarantees or off-balance sheet arrangements other than those disclosed herein. Other Items To help mitigate the impacts of greenhouse gas emissions on climate change, EMCOR has established initial carbon-based fuel consumption and greenhouse gas emission reduction targets, and has committed to setting science-based targets. Although to date we have not incurred any material costs or capital expenditures associated with achieving our targets, we could be required to expend amounts in future periods as we continue to work towards our goals. During 2022, EMCOR purchased carbon credits totaling 31,000 metric tons, for approximately $0.2 million. It is not possible, at this time, to estimate the impact that future costs and/or capital expenditures may have on our business, financial condition, results of operations, or liquidity.

2022 versus 2021 Overview The following table presents selected financial data for the fiscal years ended December 31, 2022 and 2021 (in thousands, except percentages and per share data):

Insurance Liabilities We have loss payment deductibles for certain workers' compensation, automobile liability, general liability, and property claims, have self-insured retentions for certain other casualty claims, and are self-insured for employee-related healthcare claims. In addition, we maintain a wholly-owned captive insurance subsidiary to manage certain of our insurance liabilities. Losses are recorded based upon estimates of our liability for claims incurred and for claims incurred but not reported. The liabilities are derived from known facts, historical trends, and industry averages, utilizing the assistance of an independent third-party actuary to determine the best estimate for the majority of these obligations. We believe the liabilities recognized on the Consolidated Balance Sheets for these obligations are adequate. However, such obligations are difficult to assess and estimate due to numerous factors, including severity of injury, determination of liability in proportion to other parties, timely reporting of occurrences, and effectiveness of safety and risk management programs. Therefore, if our actual experience differs from the assumptions and estimates used for recording the liabilities, adjustments may be required and will be recorded in the period that the experience becomes known. In addition, as discussed above, an increase in the cost to settle insurance claims could result in higher insurance costs and deductibles. Our estimated net insurance liabilities for workers' compensation, automobile liability, general liability, and property claims increased by $22.9 million for the year ended December 31, 2022 compared to the year ended December 31, 2021, partially as a result of greater potential exposures and an increase in certain of our deductibles or self-insured retentions. If our estimated insurance liabilities for workers' compensation, automobile liability, general liability, and property claims were to increase by 10%, it would have resulted in $20.1 million of additional expense for the year ended December 31, 2022.

Identifiable Intangible Assets and Other Long-Lived Assets As of December 31, 2022 and 2021, net identifiable intangible assets (primarily consisting of our customer relationships, subsidiary trade names, developed technology/vendor network, and contract backlog) arising out of the acquisition of businesses were $594.0 million and $589.4 million, respectively. The determination of related estimated useful lives for identifiable intangible assets and whether those assets are impaired involves significant judgments based upon short- and long-term projections of future performance. These forecasts reflect assumptions regarding anticipated macroeconomic conditions as well as our ability to successfully integrate acquired businesses. Absent earlier indicators of impairment, we test for impairment of subsidiary trade names that are not subject to amortization on an annual basis (October 1). In addition, we review for impairment of identifiable intangible assets that are being amortized as well as other long-lived assets whenever facts and circumstances indicate that their carrying values may not be fully recoverable. As of October 1, 2022, we performed our annual impairment testing of all subsidiary trade names that are not subject to amortization and determined that there was no impairment of these assets. In performing this impairment assessment, we considered the sensitivity of the reported amounts to the methods, assumptions, and estimates underlying our testing. For example, we performed sensitivity analyses and concluded that, individually, none of the following changes in estimates or assumptions would have significantly impacted the results of our testing or resulted in a material impairment of our subsidiary trade names: (a) a 50 basis point increase in the discount rate utilized in our testing, (b) a 50 basis point decline in the perpetual growth rate utilized in our testing, or (c) a 10% decrease in the estimated fair value of each trade name. With respect to identifiable intangible assets that are being amortized as well as other long-lived assets, no impairment was recognized during the year ended December 31, 2022. 36

Other Considerations As referenced above, impairment testing is based upon assumptions and estimates determined by management from a review of our operating results and business plans as well as forecasts of anticipated growth rates and margins, among other considerations. In addition, estimates of weighted average costs of capital are developed with the assistance of an independent third-party valuation specialist. These assumptions and estimates may change in future periods. Significant adverse changes to external market conditions or our internal forecasts, if any, could result in future impairment charges, particularly with respect to our United States industrial services segment given that the fair value of this reporting unit more closely approximates its carrying value. It is not possible at this time to determine if any future impairment charge will result or, if it does, whether such a charge would be material to our results of operations. Refer to Note 8 - Goodwill, Identifiable Intangible Assets, and Other Long-Lived Assets of the notes to consolidated financial statements included in Item 8. Financial Statements and Supplementary Data for further information about our goodwill and identifiable intangible assets as well as our impairment testing, including the $232.8 million of impairment charges recorded during the year ended December 31, 2020. For the year ended December 31, 2021, no impairment of our goodwill, identifiable intangible assets, or other long-lived assets was recognized.

Discussion and Analysis of Results of Operations Revenues The following table presents our revenues for each of our operating segments and the approximate percentages that each segment's revenues were of total revenues for the years ended December 31, 2022 and 2021 (in thousands, except for percentages):

Our business is vulnerable to the cyclical nature of the markets in which our clients operate and is dependent upon the timing and funding of new awards. We provide construction and maintenance services to ultimate customers operating in a number of markets which have been, and we expect will continue to be, cyclical and subject to significant fluctuations due to a variety of factors beyond our control, including economic conditions and changes in client spending. Regardless of economic or market conditions, investment decisions by our ultimate customers may vary by location or as a result of other factors like the availability of labor, relative construction costs, or competitive conditions in their industries. Because we are dependent on the timing and funding of new awards, we are therefore vulnerable to changes in our clients' markets and investment decisions. Our business may be adversely affected by significant reductions in government spending, delays or disruptions in the government appropriations process or the failure to fund or implement recent legislation, including the CHIPS and Science Act of 2022 and the Inflation Reduction Act, both of which could benefit our business. Some of our businesses derive a significant portion of their revenues from federal, state, and local governmental agencies. As a result, reduced or delayed spending by the federal government and/or state and local governments may have a material and adverse impact on our business, financial condition, results of operations, and cash flows. Significant reductions in spending aimed at reducing federal, state, or local budget deficits, the absence of a bipartisan agreement on the federal government's budget or raising the debt ceiling, renewed focus on budget deficits following recent increases in government spending in response to the COVID-19 pandemic, personnel reductions, the closure of government facilities and offices, or other changes in budget priorities could result in the deferral, delay, disruption, or cancellation of projects or contracts that we might otherwise have sought to perform. These potential events could impact the level of demand for our services and our ability to execute, complete, and receive compensation for our current contracts, or bid for and enter into new contracts with governmental agencies. Volatility in the prices or availability of certain materials and equipment used in our businesses and those of our customers, including as a result of inflation, geopolitical instability, and protectionist trade measures, could adversely affect our businesses. We are exposed to market risk of increases in certain commodity prices of materials, such as copper and steel, which are used as components of supplies or materials utilized in our operations. We are also exposed to increases in energy prices, particularly as they relate to gasoline prices for our fleet of approximately 13,200 vehicles. While we believe we can increase our prices to adjust for some price increases in commodities, there can be no assurance that price increases of commodities, if they were to occur, would be recoverable. Further, the timing of our price increases may lag the timing of the underlying increases in commodity or material prices. Additionally, our fixed price contracts generally do not allow us to adjust our prices and, as a result, increases in material or fuel costs could reduce our profitability with respect to projects in progress. For example, we experienced supply chain delays, including long lead times for certain materials and equipment, as well as an escalation in material and fuel prices, to varying degrees throughout 2021 and 2022. These disruptions, which are anticipated to persist throughout 2023, resulted in declines in gross profit and gross profit margin for certain of our operations. Fluctuations in energy prices as well as in commodity prices of materials, whether resulting from fluctuations in market supply or demand, or geopolitical conditions, including Russia's invasion of Ukraine and the resulting supply chain disruptions and sanctions on Russian exports, an increase in trade protection measures such as tariffs, or the disruption, modification, or cancellation of multilateral trade agreements, may adversely affect our customers and as a result cause them to curtail the use of our services. On the other hand, because certain of our construction and service offerings are designed to improve energy efficiency in our clients' operations, or to assist in the generation of new sources of renewable energy, such as wind, solar, and geothermal generation, decreases in the costs of traditional energy sources such as oil and natural gas, including as a result of recessionary pressure and reduced demand, may lower our customers' demand for efficiency improvements and alternative energy sources, which could have an adverse effect on our financial position, results of operations, and cash flows.

Climate Change Related Risk Factors Climate change and related environmental issues could have a material adverse impact on our business, financial condition, and results of operations. Climate change related events, such as increased frequency and severity of storms, floods, wildfires, droughts, hurricanes, freezing conditions, and other natural disasters, may have an adverse impact on our business, financial condition, and results of operation. While we have invested in programs to mitigate the risk that these events disrupt our ability to serve our customers, and also maintain insurance coverage to offset the costs which could result, these events pose inherent risks regardless of where or how we conduct our business. For example, severe weather or a catastrophic natural disaster could negatively impact our and our customers' offices, facilities, or job sites. Access to clean water and reliable energy where we conduct our business is also critical to our operations. Accordingly, severe weather events or natural disasters have the potential to disrupt our and our customers' businesses and may cause us to experience work stoppages, project delays or cancellations, financial losses, and additional costs to resume operations, in addition to potential adverse impacts on the health and safety of our workforce and their ability to work or travel. Further, climate change poses direct physical risks to infrastructure across the industry sectors we serve, both as a result of chronic environmental changes, such as rising sea levels and temperatures, as well as acute events, such as hurricanes, droughts, and wildfires. These impacts, and the costs to address them, could result in fewer resources for strategic investment by our customers, which could result in a decrease in demand for certain of our services. Any of these events could have a material adverse impact on our business, financial condition, and results of operations. We may be affected by market or regulatory responses to climate change. Growing public concern about climate change has resulted in the increased focus of local, state, regional, national, and international regulatory bodies on greenhouse gas ("GHG") emissions and climate change issues. Legislation to regulate GHG emissions has periodically been introduced in the U.S. Congress, and there has been a wide-ranging policy debate, both in the United States and internationally, regarding the impact of these gases and possible means for their regulation. The Biden Administration has made climate change and the limitation of GHG emissions one of its primary objectives, including a renewed commitment to the Paris Agreement and a Nationally Determined Contribution under such agreement that aims to reduce U.S. emissions by 50-52%, compared to a 2005 baseline, by 2030. Several states and geographic regions in the United States have also adopted legislation and regulations to reduce emissions of GHGs. Additional legislation or regulation by the federal government or state and local governments or agencies, and/or any international agreements to which the United States may become a party that control or limit GHG emissions or otherwise seek to address climate change, could result in increased compliance costs for us and our clients or have other impacts on our clients, including those who are involved in the exploration, production, or refining of fossil fuels, or who emit greenhouse gases through the combustion of fossil fuels or through the mining, manufacture, utilization, or production of materials or goods. Such policy changes could increase the costs of projects for our clients or, in some cases, prevent a project from going forward, thereby potentially reducing the need for certain of our services, which could in turn have a material adverse effect on our business, financial condition, and results of operations. However, policy changes and climate legislation could also increase the overall demand for our services as our clients and partners work to comply with these policies, such as by decarbonizing their industries, transitioning from fossil fuels to renewable energy sources, reducing their energy consumption, and developing integrated and sustainable solutions, all of which could have a positive impact on our business. We cannot predict with certainty what the effect of such regulation may be on us or our customers. 17 In addition, in March 2022, the SEC proposed new rules that would require significant climate-related disclosures by public companies, including evaluation and disclosure of material climate-related risks and opportunities, GHG emissions inventory, climate-related targets and goals, and financial impacts of physical and transition risks (the "SEC Climate Rules"). If the SEC Climate Rules take effect, in whole or in part, our legal, accounting, and other compliance expenses may increase significantly, and compliance efforts may divert management time and attention. We may also be exposed to legal or regulatory action or claims as a result of these new regulations. All of these risks could have a material adverse effect on our business, financial position, and/or stock price.

General Risk Factors Public health emergencies, epidemics, or pandemics, including the COVID-19 pandemic, impact our business. The impact of the global spread of COVID-19, and the responses of governments, businesses, and individuals to combat it, have caused significant volatility, uncertainty, and economic disruption, which has and may continue to adversely impact our operations and those of our customers. Government authorities in the United States and United Kingdom have at various times recommended or imposed certain social distancing, quarantine, and isolation measures to varying degrees, with many such measures impacting large portions of the population. These measures have included limitations on travel and mandatory cessation of certain business activities, some of which have been relaxed or adjusted and others of which remain in effect. Both the outbreak and the containment and mitigation measures resulted in serious adverse impacts on the economy, some of which are ongoing, and both the severity and duration of those impacts and the extent and pace of economic recovery continue to remain uncertain. Our workforce and ongoing operations have been, are, and may continue to be impacted by the COVID-19 pandemic. For example, we have experienced disruptions that have impacted our ability to perform our work. Such impacts include, but are not limited to, access restrictions and temporary job site shutdowns, reduced labor efficiency resulting from adherence to physical distancing, quarantine, and isolation requirements due to illness or exposure to an infected person, and other enhanced safety protocols mandated at the majority of our worksite locations, and the deferral of maintenance and service projects by our customers. The extent to which the COVID-19 pandemic will continue to impact our business and results of operations remains highly uncertain and will be affected by a number of factors. These include the duration and extent of the pandemic; the potential for additional variants of the virus that are more virulent, contagious, or against which current vaccines are less effective; the duration and extent of containment and mitigation measures that continue to be imposed or recommended; the widespread adoption and long-term efficacy of vaccines and the availability and efficacy of other treatments; the cost and/or disruption of testing that may be required of our employees either by customer requirements or government mandates; the continued impact of the pandemic on economic activity, including on planning and funding for construction projects and our customers' demand for our services; supply chain disruptions or commodity price volatility that could impact our and our vendors' ability to source the supplies and materials needed to operate our business; our ability to effectively operate, including as a result of travel restrictions and mandatory business and facility closures; the ability of our customers to pay us for services rendered; any further closures of our and our customers' offices and facilities; and any additional project delays or shutdowns. Customers may also continue to delay decision-making, delay planned work, or seek to terminate existing agreements. Any of these events could have a material adverse effect on our business, financial condition, results of operations, and/or stock price. 17 While the emergency temporary standard requiring employers with 100 or more employees to ensure their workforce is fully vaccinated or to require unvaccinated workers to produce a negative test result on at least a weekly basis (the "ETS") has been withdrawn by the Occupational Safety and Health Administration ("OSHA"), and Executive Order 14042 mandating vaccination for all federal contractors and subcontractors is currently stayed by the courts, it is unclear whether OSHA or another federal agency will mandate vaccination and/or testing. Costs related to any mandatory testing, including both the costs of tests and the costs to compensate employees for the time to undergo such testing, will likely represent a substantial expense to the Company, which could have a material adverse effect on our business, financial condition, and/or results of operations to the extent that a significant portion of our workforce does not choose to become vaccinated. On January 10, 2022, the Biden Administration announced that it would require insurance companies and group health plans to cover the cost of at-home COVID-19 tests. As we are self-insured for employee-related healthcare claims, this new requirement could result in an additional expense for the Company. It is not possible at this time to determine the impact of this new requirement or whether it could have a material adverse effect on our financial condition and/or results of operations. Additionally, as many of our employees periodically access our systems remotely, in part as a result of the COVID-19 pandemic and the potential business or facility closures or reduced or staggered in-person attendance, we may be subject to heightened security risks, including the risks of cyber-attacks. Further, if any of our key personnel are unable to perform their duties for a period of time, including as a result of illness, our results of operations could be adversely affected. Our business, financial condition, results of operations, and/or stock price could also be adversely affected in the future by the effects of another epidemic or pandemic, or otherwise by the spread of contagious diseases other than COVID-19. Such effects could be similar to those of the COVID-19 pandemic or could impact our business in different ways, including supply-chain disruptions, restrictions on our ability to provide services in the regions affected, adverse impacts on our workforce, and impacts to the U.S. or global economy or financial markets generally.

•attract new customers; and •retain and/or increase the number of projects performed for existing customers. In addition, existing and potential customers may reduce the number or size of projects available to us because of general economic conditions or due to their inability to obtain capital or pay for services we provide. Many of the factors affecting our ability to generate internal growth are beyond our control, and we cannot be certain that our strategies will be successful or that we will be able to generate cash flow sufficient to fund our operations and to support internal growth. If we are not successful, we may not be able to achieve internal growth, expand operations, or grow our business. Fluctuating foreign currency exchange rates impact our financial results. We have operations in the United Kingdom, which in 2021 accounted for approximately 5% of our revenues. Our reported financial position and results of operations are exposed to the effects (both positive and negative) that fluctuating exchange rates have on the process of translating the financial statements of our United Kingdom operations, which are denominated in local currencies, into the U.S. dollar. The factors that impact exchange rate fluctuation, including macroeconomic and geopolitical conditions, are outside the control of the Company. As part of our risk management strategy, we are effectively self-insured against certain potential liabilities. Although we maintain insurance policies with respect to a broad range of risks, including automobile liability, general liability, workers' compensation, and employee-related healthcare, these policies do not cover all possible claims and certain of the policies are subject to large deductibles and retentions. In addition, we maintain a wholly-owned captive insurance subsidiary to manage certain of our insurance liabilities. Accordingly, we are effectively self-insured for a substantial number of actual and potential claims. Further, if any of our insurance carriers defaulted on its obligations to provide insurance coverage by reason of its insolvency or for other reasons, our exposure to claims would increase and our profits would be adversely affected. Our estimates for unpaid claims and expenses are based on known facts, historical trends, and industry averages, utilizing the assistance of an independent third-party actuary. The determination of such estimated liabilities and their appropriateness are reviewed and updated at least quarterly. However, these liabilities are difficult to assess and estimate due to many relevant factors, the effects of which are often unknown, including the severity of an injury or damage, the determination of liability in proportion to other parties, the timeliness of reported claims, the effectiveness of our risk management and safety programs, and the terms and conditions of our insurance policies. Our accruals are based upon known facts, historical trends and our reasonable estimate of future expenses, and we believe such accruals are adequate. However, unknown or changing trends, risks, or circumstances, such as increases in claims, a weakening economy, increases in medical costs, changes in case law or legislation, or changes in the nature of the work we perform, could render our current estimates and accruals inadequate. In such case, adjustments may be required to increase our insurance liabilities in the period that the experience becomes known. External market conditions, including catastrophic losses resulting from an increase in severe weather events and the prolonged pandemic, among other factors, have resulted in an insurance market that is characterized by higher premiums, diminished capacity, and more conservative underwriting. If these market conditions persist, insurance carriers may be unwilling, in the future, to provide our current levels of coverage without a significant increase in insurance premiums, self-insured retention limits, or collateral requirements to cover our obligations to them. Increased collateral requirements may be in the form of additional letters of credit, surety bonds, and/or cash, and an increase in collateral requirements could significantly reduce our liquidity. If insurance premiums or self-insured retention limits increase, and/or if insurance claims are higher than our estimates, our profitability could be adversely affected. Failure to provide our services in accordance with professional standards or contractual requirements could expose us to significant monetary damages. Our services often involve professional judgments regarding the planning, design, development, construction, or operations and management of complex facilities. Although we have adopted a range of insurance, risk management, and risk avoidance programs designed to reduce potential liabilities, a catastrophic event at one of our project sites or a completed project, resulting from the services we have performed, could result in significant professional or product liability and warranty or other claims against us, as well as reputational harm. These liabilities could exceed our insurance limits or impact our ability to obtain insurance in the future. Further, even where insurance coverage applies, such policies have limits and deductibles or retentions, which could result in our assumption of exposure for certain amounts with respect to any claim filed against us. In addition, customers or subcontractors who have agreed to indemnify us against any such liabilities or losses might refuse or be unable to uphold their obligations to us. An uninsured claim, either in part or in whole, as well as any claim covered by insurance but subject to a policy limit, high deductible and/or retention, could have a material adverse effect on our business, financial condition, and results of operations. 11

Economic and Strategic Risk Factors Economic downturns have historically led to reductions in demand for our services. Negative conditions in the credit markets, including rising interest rates, may adversely impact our results of operations and our ability to operate our business. The level of demand from our clients for our services has been, in the past, adversely impacted by slowdowns in the industries we service, as well as in the economy in general. When the general level of economic activity has been reduced from historical levels, certain of our ultimate customers have delayed or canceled projects or capital spending, especially with respect to more profitable private sector work, and such slowdowns adversely affect our ability to grow, reducing our revenues and profitability. A number of economic factors, including financing conditions, the prices of commodities, and energy prices, have, in the past, adversely affected the industries we serve and our ultimate customers' ability or willingness to fund expenditures. General concerns about the fundamental soundness of domestic and foreign economies may also cause ultimate customers to defer projects even if they have credit available to them. A prolonged stagnation or weakening in financial and macroeconomic conditions, including rising interest rates, supply chain challenges, inflation, and any continuing impacts of the COVID-19 pandemic, could therefore have a significant adverse effect on our revenues and profitability. We are exposed to market risk for changes in interest rates for borrowings under our credit facilities, which bear interest at variable rates. Throughout 2022, the Federal Reserve Board significantly increased the federal funds rate, further raised it in February 2023, and has indicated that rate increases are likely to continue through the remainder of 2023. Increases in benchmark interest rates impact our interest expense and cost of capital, which may adversely impact our ability to make payments on outstanding debt, raise additional funds through the issuance of debt, fund capital expenditures or other liquidity needs. Any of these impacts may adversely affect our liquidity, results of operations, and financial position. For further information on our outstanding debt and borrowing rates, refer to Note 9 - Debt of the notes to consolidated financial statements included in Item 8. Financial Statements and Supplementary Data. Many of our clients depend on the availability of credit to help finance their capital and maintenance projects. At times, tightened availability of credit or increased interest rates have negatively impacted the ability of existing and prospective ultimate customers to fund projects we might otherwise perform, particularly those in the more profitable private sector. As a result, our ultimate customers may defer such projects for an unknown, and perhaps lengthy, period. Any such deferrals would inhibit our growth and would adversely affect our results of operations. In a weak economic environment, particularly in a period of restrictive credit markets, we may experience greater difficulties in collecting payments from, and negotiating change orders and/or claims with, our clients due to, among other reasons, a diminution in our ultimate customers' access to the credit markets or potential bankruptcies. If clients delay in paying or fail to pay a significant amount of our outstanding receivables, or we fail to successfully negotiate a significant portion of our change orders and/or claims with clients, it could have an adverse effect on our liquidity, results of operations, and financial position. Our business has traditionally lagged recoveries in the general economy and, therefore, after an economic downtown we may not recover as quickly as the economy at large. Certain of our businesses, including those within our United States industrial services segment, are exposed to risks associated with the oil and gas industry. These risks, which are not subject to our control, include volatility in the price and production of crude oil, the development of and consumer demand for alternative energy sources, including as a result of a change in consumer preference, or in an effort to reduce greenhouse gas emissions or combat climate change, and legislative and regulatory actions. In addition, macroeconomic conditions, influenced by a variety of events and circumstances, can also affect customer demand for our services within these businesses and lower prices and production volumes, or perceived risk thereof, typically results in the curtailment or deferral of spending by our customers. For example, during 2020, the escalation of geopolitical tensions between the Organization of Petroleum Exporting Countries (OPEC) and Russia contributed to a significant drop in the price of crude oil, impacting customers in the energy sector and the demand for certain of our services. On the other hand, the Russian invasion of Ukraine in February 2022 and the resulting supply chain disruptions and sanctions imposed on Russian oil and gas exports caused the prices of crude oil and natural gas to increase significantly for several months. While higher prices for our customers' products may increase demand for our services, significant increases in the price or demand for crude oil may also result in the short-term curtailment or deferral of spending by our customers, as facility downtime to perform certain of the services we provide comes at a higher opportunity cost. Continued uncertain conditions within these markets, including the impact of geopolitical instability and the lingering impacts of the COVID-19 pandemic, could negatively impact our financial position, results of operations, and cash flows.

We may be unable to achieve our current or future climate commitments and targets, or we may incur substantial costs in meeting such targets. To help mitigate the impacts of GHG emissions on climate change, EMCOR has established initial carbon-based fuel consumption and GHG emission reduction targets and committed to setting science-based GHG emissions targets. However, achievement of such targets, or similar targets that may be established in the future, is subject to risks and uncertainties, many of which are outside of our control. These risks and uncertainties include, but are not limited to: (a) our ability to execute our operational strategies and achieve our goals within the currently projected costs and the expected timeframes; (b) the availability and cost of alternative fuels, electrical charging infrastructure, off-site renewable energy, and other materials and components; (c) unforeseen design, operational, and technological difficulties; (d) the outcome of research efforts and future technology developments, including alternate or more fuel efficient vehicles for our fleet, such as hybrid or electric vehicles, the availability of which has been impacted by the global shortage in supply of vehicles generally; (e) regulations and requirements that restrict or prohibit our ability to impose requirements on third party contractors; (f) an acquisition of or merger with another company that has not adopted similar targets and goals or whose progress towards reaching its goals is not as advanced as ours; and (g) the pace of recovery from the COVID-19 pandemic, which could result in fluctuations in our fuel consumption and GHG emissions in a given period. In addition, we could be required to expend amounts in future periods as we continue to work towards achieving our targets, which may have a material effect on our business, financial condition, results of operations, or liquidity.

Our dependence upon fixed price contracts could adversely affect our business. We currently generate, and expect to continue to generate, a significant portion of our revenues from fixed price contracts. We must estimate the total costs of a particular project to bid for fixed price contracts. Cost and scheduling estimates are based on a number of assumptions, including those about future economic conditions, commodity and other materials pricing, cost and availability of labor, equipment, and materials, and supply chain efficiency, among other factors. The actual cost of labor and materials, however, may vary from the costs we originally estimated, something which we have experienced and may continue to experience due to inflationary pressures, supply chain challenges, and rising interest rates. These variations, along with other risks, inherent in the execution of projects subject to fixed price contracts, may cause actual gross profits from projects to differ from those we originally estimated and could result in reduced profitability or losses on projects. Depending upon the size of a particular project, variations from the estimated contract costs can have a significant impact on our operating results for any fiscal quarter or year. 10 We could incur additional costs to cover certain guarantees or other contractual requirements. In some instances, we guarantee completion of a project by a specific date or price, cost savings, achievement of certain performance standards, or performance of our services at a certain standard of quality. For other arrangements, including those within our government services operations, the terms of our contracts may include provisions which require us to achieve certain minority participation or small or disadvantaged business "set-aside" goals. Such requirements have become more frequent in recent years and we expect them to be increasingly prevalent, and more strictly enforced in the near future, especially under the current administration in Washington, D.C. If we subsequently fail to meet such guarantees, or comply with such provisions, we may be held responsible for costs resulting from such failures, including payment of penalties or liquidated or other damages. To the extent that any of these events occur, the total costs of a project could exceed the original estimated costs, and we would experience reduced profits or, in some cases, a loss. Many of our contracts, especially our building and industrial services contracts, may be canceled or delayed on short notice, and we may be unsuccessful in replacing such contracts if they are canceled or as they are completed or expire. We could experience a decrease in revenues, net income, and liquidity if any of the following occur: •customers cancel a significant number of contracts or delay services or projects; •we fail to win a significant number of our existing contracts upon re-bid;

Adverse resolution of litigation and other legal and regulatory proceedings may harm our operating results or financial position. From time to time, we are a party to lawsuits and other legal proceedings, most of which occur in the normal course of our business. These actions and proceedings may involve actual or threatened claims by customers, employees, or other third parties for, among other things, compensation or indemnification for alleged personal injury, workers' compensation, employment discrimination, breach of contract, property damage, or other general commercial disputes. In addition, we have been, and may in the future be, subject to class action claims alleging violations of the Fair Labor Standards Act and state wage and hour laws. Litigation and other legal proceedings can be expensive, lengthy, and disruptive to normal business operations, and their outcome is inherently uncertain and difficult to accurately predict or quantify. In addition, plaintiffs in many types of actions may seek punitive damages, civil penalties, consequential damages or other losses, or injunctive or declaratory relief. An unfavorable resolution of a particular legal proceeding or claim, whether through a settlement, mediation, court judgment, or otherwise, could have a material adverse effect on our business, operating results, financial position, and cash flows, and in some cases, on our reputation or our ability to obtain projects from customers, including governmental entities. See Item 3. Legal Proceedings and Note 15 - Commitments and Contingencies of the notes to consolidated financial statements included in Item 8. Financial Statements and Supplementary Data, for more information regarding any significant legal proceedings in which we are involved. We may incur liabilities or suffer negative financial impacts relating to occupational, health, and safety matters. Our operations are subject to extensive laws and regulations relating to the maintenance of safe conditions in the workplace. While we have invested, and will continue to invest, substantial resources in our robust occupational, health, and safety programs, many of our businesses involve a high degree of operational risk, and there can be no assurance that we will avoid significant exposure. These hazards can cause personal injury and loss of life, severe damage to or destruction of property and equipment, and other consequential damages, and could lead to suspension of operations, large damage claims, an increase in employee turnover, and, in extreme cases, criminal liability. Any of the foregoing could result in financial losses or reputational harm, which could have a material adverse impact on our business, financial condition, and results of operations. Our customers seek to minimize safety risks on their sites and they frequently review the safety records of contractors during the bidding process. Accordingly, if our safety record were to substantially deteriorate over time, we might become ineligible to bid on certain work and our customers could cancel our contracts and/or not award us future business. 15 Our failure to comply with anti-bribery statutes, such as the Foreign Corrupt Practices Act and the U.K. Bribery Act of 2010, or sanction regulations, could result in fines, criminal penalties, and other sanctions that could have an adverse effect on our business. The U.S. Foreign Corrupt Practices Act (the "FCPA"), the U.K. Bribery Act of 2010 (the "Bribery Act"), and similar anti-bribery laws in other jurisdictions generally prohibit companies and their intermediaries from making improper payments to foreign officials for the purpose of obtaining or retaining business or securing an improper advantage. In addition, sanctions against foreign persons and entities have increased in recent years, especially as a result of the war in the Ukraine. Our policies require that all of our employees, subcontractors, vendors, and agents worldwide must comply with applicable anti-bribery and sanction laws. However, there is no assurance that our policies and procedures to ensure compliance with the FCPA, the Bribery Act, and similar anti-bribery and sanction laws, will eliminate the possibility of liability under such laws for actions taken by our employees, agents, and intermediaries. If we were found to be liable for violations under the FCPA, the Bribery Act, or similar anti-bribery or sanction laws, either due to our own acts or omissions or due to the acts or omissions of others, we could incur substantial legal expenses and suffer civil and criminal penalties, which could have a material adverse effect on our business, financial condition, and results of operations, as well as our reputation. In addition, whether or not such expenses, penalties, or sanctions are actually incurred, the actual or alleged violation of the FCPA, the Bribery Act, or any similar anti-bribery or sanction laws could have a negative impact on our reputation.

Human Capital and Labor Risk Factors The departure of key personnel could disrupt our business. We depend on the continued efforts of our senior management. The loss of key personnel, including a temporary loss as a result of illness, or the inability to hire and retain qualified executives, could negatively impact our ability to manage our business. We may be unable to attract and retain skilled employees. Our ability to grow and maintain productivity and profitability will be limited by our ability to employ, train, and retain skilled personnel necessary to meet our requirements. We are dependent upon a workforce of approximately 35,500 employees, including our project managers and field supervisors who are responsible for managing our projects, and there can be no assurance that any individual will continue in his or her capacity for any particular period of time. The loss of such qualified employees could have an adverse effect on our business. We cannot be certain that we will be able to maintain an adequate skilled labor force necessary to operate efficiently and to support our business strategy or that labor expenses will not increase as a result of a shortage in the supply of these skilled personnel. The availability and costs to adequately train and maintain a skilled labor force could be impacted by factors we cannot control, including changes in the unemployment rate, prevailing wage rates, benefit costs, the ongoing impacts of the COVID-19 pandemic, and competition for labor from our competitors in the markets we serve. Labor shortages or increased labor costs, such as those currently being experienced throughout the United States and United Kingdom, could impair our ability to provide services to our customers, maintain our business, or grow our revenues. Proposed rules by the Federal Trade Commission to eliminate almost all non-competition agreements with employees, if implemented, may also impact retention of key employees by reducing barriers to individuals with such agreements leaving to work for our competitors. Our unionized workforce could adversely affect our operations; our participation in many multiemployer pension plans could result in substantial liabilities being incurred. As of December 31, 2022, approximately 60% of our employees were covered by collective bargaining agreements. Although the majority of these agreements prohibit strikes and work stoppages, we cannot be certain that strikes or work stoppages will not occur in the future. However, only two of our collective bargaining agreements are national or regional in scope, and not all of our collective bargaining agreements expire at the same time. Strikes or work stoppages likely would adversely impact our relationships with our customers and could have a material adverse effect on our financial position, results of operations, and cash flows. We contribute to approximately 200 multiemployer pension plans. Under the Employee Retirement Income Security Act, we may become liable for our proportionate share of a multiemployer pension plan's underfunding if we cease to contribute to that pension plan or significantly reduce the employees in respect of which we make contributions to that pension plan. Our potential liability for unfunded liabilities could be material. See Note 14 - Retirement Plans of the notes to consolidated financial statements included in Item 8. Financial Statements and Supplementary Data for additional information regarding multiemployer pension plans. 16

Overview We are one of the largest specialty contractors in the United States and a leading provider of electrical and mechanical construction and facilities services, building services, and industrial services. In 2022, we had revenues of approximately $11.1 billion. Our services are provided to a broad range of commercial, industrial, healthcare, utility, and institutional customers through approximately 100 operating subsidiaries, which specialize principally in providing construction services relating to electrical and mechanical systems in all types of facilities and in providing various services relating to the operation, maintenance, and management of those facilities. Such operating subsidiaries are organized into the following reportable segments:

Employee Demographic% of Total White69 % Hispanic / Latinx18 % Black / African American8 % Asian2 % Multiracial, Native American, Native Hawaiian, and Pacific Islander3 % 5 Approximately 60% of our employees are represented by various unions pursuant to approximately 450 collective bargaining agreements between our individual subsidiaries or trade associations and local unions, as well as two collective bargaining agreements that are national or regional in scope. We believe that our relations with our labor unions are generally positive. Our ability to execute complex projects for our customers, and to perform all of our services with the excellence that makes us an industry leader, depends on our success in attracting and retaining skilled labor in a competitive market. We therefore strive to be and remain an employer of choice for the most talented employees in each of the industries and markets in which we operate. This begins with offering competitive employee compensation and benefits packages, specifically designed to meet the unique needs of each individual in our organization, which include: •Health and Welfare Plans: All full-time employees who do not participate in union plans are offered a range of choices among medical, dental and vision plans, life, accident, dependent and disability insurance, and pre-tax health spending accounts that include employer contributions. •Retirement Savings: We help provide our employees with financial security by offering a 401(k) Savings Plan and an Employee Stock Purchase Plan, both of which include company matching contributions. •Degree Assistance: Eligible employees may apply for reimbursement for job-related courses or courses taken as part of a curriculum for a business or job-related degree at an accredited institution. •Employee Assistance Program: Through our Employee Assistance Program, we offer our employees, and their dependents or household members, access to services and counseling on a variety of personal, professional, legal, and financial matters, at no cost. Most recently, we started offering college counseling services for the children of our employees. Key to our attraction and retention of employees is our commitment to our EMCOR Values and our focus on employee safety and diversity, equity, and inclusion. Our Board of Directors and senior leadership engage in oversight and management, respectively, of our significant human capital initiatives. Our Board of Directors is regularly briefed and provides input on key human capital initiatives and metrics.

Workplace Safety We believe that our focus on employee safety and well-being is reflected in our results. In a year in which our employees worked approximately 77.5 million hours, the Company's Total Recordable Incident Rate in 2022 was approximately 1.2, which was approximately 55% lower than the most recently available industry average of 2.70. This represents our fourteenth consecutive year with a Total Recordable Incident Rate which was less than half the industry average. Our position as an industry leader in safety begins with a strong culture of care and vigilance embodied in our EMCOR Values and is supported by a comprehensive suite of training, resources, and analytics. These include: (a) our signature Be There for Life! Zero Injuries Program and Be Vigilant! Campaign, (b) incident and injury prevention planning, including in-person and online training tools, adoption of new technology, and best practice guides available through our company intranet, (c) enterprise level reporting and analysis of leading and lagging indicators, (d) a 24-hour incident reporting hotline, and (e) a company-wide program to share and champion best safety practices across our range of businesses.

•United States industrial services •United Kingdom building services Our operating subsidiaries offer comprehensive and diverse solutions on a broad scale and have many long-standing customer relationships. We provide construction services and building services directly to corporations, municipalities and federal and state governmental entities, owners/developers, and tenants of buildings. We also provide our construction services indirectly by acting as a subcontractor to general contractors, systems suppliers, construction managers, developers, property managers, and other subcontractors. Our industrial services are generally provided directly to refineries and petrochemical plants. Our revenues are derived from many different customers in numerous industries, which have operations in several different geographical areas. Of our 2022 revenues, approximately 96% were generated in the United States and approximately 4% were generated in foreign countries, substantially all in the United Kingdom. In 2022, approximately 61% of our revenues were derived from our construction operations, approximately 29% of our revenues were derived from our building services operations and approximately 10% of our revenues were derived from our industrial services operations. For additional information regarding our revenues, see Note 3 - Revenue from Contracts with Customers of the notes to consolidated financial statements included in Item 8. Financial Statements and Supplementary Data. We believe that our range of service offerings, technical capability, skilled workforce, and strong project execution, along with our safety culture and financial resources, differentiate us from our competition and position us to benefit from future capital and maintenance spending by our customers. Our strategies of expanding our portfolio of service offerings for existing and potential customers and increasing or enhancing our presence in core end markets and geographies, along with our commitment to industry-leading best practices and technological and training capabilities, place us in the position to capitalize on opportunities and trends in the industries we serve and continue to grow our business. Increasingly, our services are focused on delivering sustainable energy solutions, enhancements in energy efficiency, reductions in waste and emissions, and improvements in the safety and comfort of our customers' facilities, as discussed in further detail below. The broad scope of our operations is more particularly described below. For detailed segment financial information refer to Note 18 - Segment Information of the notes to consolidated financial statements included in Item 8. Financial Statements and Supplementary Data.

United States electrical and mechanical construction and facilities services operations: Our electrical and mechanical construction services primarily involve the design, integration, installation, start-up, operation and maintenance, and provision of services relating to: •Systems for electrical power transmission, distribution, and generation, including power cables, conduits, distribution panels, transformers, generators, uninterruptible power supply systems, and related switch gear and controls; •Sustainable energy solutions such as solar, photovoltaic, and wind, as well as the installation of electric vehicle charging stations; •Premises electrical and lighting systems, including fixtures and controls; •Process instrumentation in the refining, chemical processing, and food processing industries; •Low-voltage systems, such as fire alarm, security, and process control systems; •Voice and data communications, including fiber optic and low voltage cabling, distributed antenna systems, audiovisual systems, and wireless access points; •Roadway and transit lighting and signaling and fiber optic lines; •Computerized traffic control systems, and signal and communication equipment for mass transit systems; •Heating, ventilation, air conditioning, and refrigeration, including both traditional mechanical systems as well as geothermal solutions; •Clean-room process ventilation systems; •Fire protection and suppression systems; •Plumbing, process and high-purity piping systems; •Controls and filtration systems; •Water and wastewater treatment systems; •Central plant heating and cooling systems, including manufacturing and installing sheet metal air handling systems; •Crane and rigging services;

•Millwright services; and •Steel fabrication, erection, and welding services. The electrical and mechanical construction services industry has experienced growth due principally to the increased content, complexity, and sophistication of electrical and mechanical systems resulting, in part, from growth in digital processing, cloud computing, and data storage. In addition, facilities of all types require extensive electrical distribution systems, sophisticated power supplies, networks of low-voltage and fiber-optic communications cabling, and various mechanical, plumbing, and fire protection and suppression systems. Moreover, the need for substantial environmental controls within a building, due to the heightened need to maintain extensive computer systems at optimal temperatures, and the demand for increased energy efficiency, have continued to expand opportunities for our electrical and mechanical services businesses. The demand for these services is typically driven by non-residential construction and renovation activity and, in recent years, has benefited from the re-shoring of the supply chain, the need for additional high-tech manufacturing facilities, and the energy transition/expansion throughout the United States. Our electrical and mechanical construction services generally fall into one of three categories: (a) large installation projects, with contracts often in the multi-million dollar range, that involve: (i) the construction of manufacturing facilities, data centers, warehousing and distribution facilities, and commercial buildings, (ii) institutional and public works projects, or (iii) the fit-out of large blocks of space within commercial or mixed-use buildings, (b) large and medium sized capital and maintenance projects for commercial, manufacturing, pharmaceutical, healthcare, oil and gas, and industrial clients, and (c) smaller installation projects, of a short duration, typically involving fit-out, renovation, and retrofit work. Our United States electrical and mechanical construction operations accounted for approximately 61% of our 2022 total revenues. Of such revenues, approximately 36% were generated by our electrical construction operations and approximately 64% were generated by our mechanical construction operations. Our largest projects typically include those: (a) for commercial purposes (such as office buildings, data centers, convention centers, sports stadiums, and shopping malls); (b) for high-tech manufacturing purposes (such as semiconductor, biotech, life-sciences, and pharmaceutical facilities); (c) for traditional manufacturing and industrial purposes (such as steel, pulp and paper mills, food processing and automotive manufacturing facilities, power generation (including sustainable energy solutions such as solar and wind), oil and gas refineries, and chemical processing plants); (d) for transportation purposes (such as highways, bridges, airports, and transit systems); (e) for institutional purposes (such as educational and correctional facilities and research laboratories); (f) for healthcare purposes (such as hospitals, surgical centers, rehabilitation and nursing facilities, and medical offices); (g) for water and wastewater purposes; and (h) for hospitality purposes (such as resorts, hotels, and gaming facilities). Our largest projects, which typically range in size from $10 million up to and occasionally exceeding $200 million, represented approximately 40% of our electrical and mechanical construction services revenues in 2022. These projects often involve new construction and a combination of design, installation, and start-up services. Depending on the size and complexity of these projects, they may span multiple years and typically require significant technical and management skills and the financial strength to obtain performance bonds, which are often a condition to bidding for and winning these projects. Our projects of less than $10 million accounted for approximately 60% of our electrical and mechanical construction services revenues in 2022. These projects are typically completed in less than one year. They usually involve electrical and mechanical construction services when an end-user or owner undertakes construction or modification of a facility to accommodate a specific use, upgrade or replace aging systems, or increase energy efficiency. These projects frequently require electrical and mechanical systems to meet special needs such as critical systems power supply, fire protection systems, special environmental controls and high-purity air systems, sophisticated electrical and mechanical systems for data centers, new production lines in manufacturing plants, and office arrangements in existing office buildings. They are not usually dependent upon the new construction market. Demand for these projects and types of services is often prompted by the expiration of leases, changes in technology, the demand for more energy efficient systems, or changes in the customer's plant or office layout in the normal course of a customer's business.

United States and United Kingdom building services operations: Our building services include: •Mobile mechanical maintenance and services for mechanical, electrical, plumbing, fire safety, and building automation systems; •Modification and retrofit projects; •Program development, management, and maintenance for energy systems, including LEED and other sustainable solutions to assist our customers in reducing energy consumption; •Technical consulting and diagnostic services; •Services aimed at improving indoor air quality; •Installation and support for building systems; •Commercial and government site-based operations and maintenance; •Facility management, maintenance, and services; •Floor care and janitorial services, including enhanced cleaning and sanitization services; •Landscaping, lot sweeping, and snow removal; •Other building services, including reception, security, and catering services; •Vendor management and call center services;

•Military base operations support services; and •Infrastructure and building projects for federal, state, and local governmental agencies. While not all of the above services are performed in both countries, we provide building services throughout the United States and United Kingdom. Our building services operations have built upon our traditional electrical and mechanical construction operations and our client relationships to expand the scope of services being offered and to develop packages of services for customers on a local, regional, and national basis. 3 Our building services operations, which generated approximately 29% of our 2022 total revenues, provide services to owners, operators, tenants, and managers of all types of facilities both on a contractual basis for a specified period of time and on an individual task order basis. Of our building services revenues for 2022, approximately 85% were generated in the United States and approximately 15% were generated in the United Kingdom. Demand for our building services is often driven by customers' decisions to focus on their core competencies, customers' programs to reduce costs, the increasing technical complexity of customers' facilities, including their mechanical, electrical, building automation, voice and data, and other systems, and the need for increased reliability, energy efficiency, and air filtration and sanitization. These trends have led to outsourcing and privatization programs whereby customers in both the private and public sectors seek to contract out those activities that support, but are not directly associated with, the customer's core business. Clients of our building services business include federal and state governments, institutional organizations, utilities, healthcare providers, and major corporations engaged in information technology, telecommunications, pharmaceuticals, financial services, and manufacturing, as well as large retailers and other businesses with geographically dispersed locations. We provide building services at a number of prominent buildings in the United States, including those that house the National Archives and Records Administration, the Federal Deposit Insurance Corporation, the Government Accountability Office, and the Department of Health and Human Services, as well as other government facilities, including the NASA Jet Propulsion Laboratory. We also provide building services, as a prime contractor or a subcontractor, to U.S. military bases, including the Defense Intelligence Agency located on Joint Base Anacostia-Bolling, and are involved in a joint venture providing building services to NASA's Armstrong Flight Research Center. The agreements pursuant to which this division provides services to the federal government are frequently for a base period and a number of option years exercisable at the sole discretion of the government, are often subject to renegotiation by the government in terms of scope of services, and are subject to termination by the government prior to the expiration of the applicable term.