Primoris Services Corporation (NYSE: PRIM) (“Primoris” or “the Company”) announced today that the Company’s management team will participate in four institutional investor conferences in May – July 2026.

• 2026 KeyBanc Capital Markets Industrials & Basic Materials Conference – Boston, MA on May 28, 2026
• Wells Fargo 16th Industrials & Materials Conference – Chicago, IL on June 9, 2026
• 2026 J.P. Morgan Natural Resources Conference: An Energy, Power, Renewables & Mining Event – New York, NY on June 24, 2026
• CJS Securities 26th Annual “New Ideas” Summer Conference – White Plains, NY on July 9, 2026

A copy of the Company’s most recent investor presentation will be available on the Company’s Investor Relations “Events and Presentations” section of its website, www.prim.com, prior to each conference as well as links to any webcasts.

About Primoris

Primoris Services Corporation is a premier specialty contractor providing critical infrastructure services to the utility, energy, and renewables markets throughout the United States and Canada. Built on a foundation of trust, we deliver a range of engineering, construction, and maintenance services that power, connect, and enhance society. On projects spanning utility-scale solar, renewables, power delivery, communications, and transportation infrastructure, we offer unmatched value to our clients, a safe and entrepreneurial culture to our employees, and innovation and excellence to our communities. To learn more, visit www.prim.com and follow us on social media at @PrimorisServicesCorporation.

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