We are pleased with our fourth quarter 2020 financial results, which included increases in revenues, gross profit, net income attributable to MYR Group Inc., earnings per share, EBITDA, and free cash flow as compared to fourth quarter 2019. “ ” Rick SwartzPresident and CEO FINANCIAL SNAPSHOT *See reconciliation of non-GAAP measures in our recently filed press release and investor presentation. Q4 HIGHLIGHTS Backlog remains strong at $1.65 billion BUSINESS SEGMENTS TRANSMISSION & DISTRIBUTION $318.6M FINANCIAL OVERVIEW AS OF DECEMBER 31, 2020 LTM REVENUE $2.25B 8.5% YoY BACKLOG $1.65B 10.0% YoY LTM EBITDA* $132.4M 30.8% YoY LTM NET INC./EPS $3.48 per diluted share 55.9% YoY attributable to MYR Group Inc. $58.8M COMMERCIAL & INDUSTRIAL Fourth quarter revenues of $608.0 million $36.9 (6.5%) YoY Fourth quarter net income attributable to MYR Group Inc. of $18.2 million, or $1.07 per diluted share $0.31 (40.8%) YoY $1.15B Fourth Quarter 2020 Revenues Full Year 2020 Revenues $289.4M $1.09B Fourth Quarter 2020 Revenues Full Year 2020 Revenues

FAST FACTS HEADQUARTERS 12150 E 112TH AVENUE HENDERSON, CO 80640 Phone: 303.286.8000 STOCK TICKER SYMBOL NASDAQ: MYRG WEBSITE myrgroup.com MYR GROUP CONSISTS OF THE FOLLOWING SUBSIDIARIES: The L.E. Myers Co. Sturgeon Electric Company, Inc. Harlan Electric Company MYR Energy Services, Inc. Great Southwestern Construction, Inc. E.S. Boulos Company High Country Line Construction, Inc. Huen Electric, Inc. CSI Electrical Contractors, Inc. GSW Integrated Services, LLC Western Pacific Enterprises Ltd. • • • • • • • • • • • COMPANY PROFILE YEARS OF EXPERIENCE125+ TOTAL EMPLOYEES7,200+ CREDIT FACILITY (AVAILABILITY AT 12/31/2020) $364.6M COMPANY DATA BOARD OF DIRECTORS (CHAIRMAN & CEO ARE SEPARATE POSITIONS) 7 OF 9 ARE INDEPENDENT EXCELLENT 2020 SAFETY STATS (TOTAL CASE INCIDENT RATE AND LOST TIME INCIDENT RATE) TCIR 1.06 LTIR 0.11 LOCATIONS THROUGHOUT THE U.S. AND WESTERN CANADA