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Table of Contents X ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2020 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-8267 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - K Title of each class Common Stock Delaware ( State or other jurisdiction of incorporation or organization ) 301 Merritt Seven ( Address of principal executive offices ) EMCOR Group , Inc. ( Exact name of registrant as specified in its charter ) Norwalk , Connecticut Large Accelerated Filer 11-2125338 ( I.R.S. Employer Identification Number ) 06851-1092 ( Zip Code ) Registrant's telephone number , including area code : ( 203 ) 849-7800 Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol EME Name of each exchange on which registered New York Stock Exchange Securities registered pursuant to Section 12 ( g ) of the Act : None Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes No Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Securities Exchange Act . Yes No > Indicate by check mark whether the registrant ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes No Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T ( Section 232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes No Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company , or an emerging growth company . See the definitions of " large accelerated filer , " " accelerated filer , ” “ smaller reporting company , ” and " emerging growth company " in Rule 12b - 2 of the Exchange Act . Non - accelerated Smaller Reporting Company Emerging Growth Company Accelerated Filer Filer If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act . □ Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404 ( b ) of the Sarbanes - Oxley Act ( 15 U.S.C. 7262 ( b ) ) by the registered public accounting firm that prepared or issued its audit report . Indicate by check mark whether the registrant is a shell company ( as defined by Rule 12b - 2 of the Exchange Act ) . Yes □ No > The aggregate market value of the common stock held by non - affiliates of the registrant was approximately $ 2,771,000,000 as of the last business day of the registrant's most recently completed second fiscal quarter , based upon the closing sale price on the New York Stock Exchange reported for such date . Shares of common stock held by each executive officer and director and by each person who owns 5 % or more of the outstanding common stock ( based solely on filings of such 5 % holders ) have been excluded from such calculation as such persons may be deemed to be affiliates . This determination of affiliate status is not necessarily a conclusive determination for other purposes . Number of shares of the registrant's common stock outstanding as of the close of business on February 19 , 2021 : 54,796,654 shares . DOCUMENTS INCORPORATED BY REFERENCE Part III . Portions of the definitive proxy statement for the 2021 Annual Meeting of Stockholders , which document will be filed with the Securities and Exchange Commission pursuant to Regulation 14A not later than 120 days after the end of the fiscal year to which this Form 10 - K relates , are incorporated by reference into Items 10 through 14 of Part III of this Form 10 - K .