Primoris Services Corporation (NYSE: PRIM) (“Primoris” or “the Company”) announced today that the Company’s management team will participate in two upcoming institutional investor conferences.

• 12th Annual ROTH Solar & Storage Symposium at RE+ – Las Vegas, NV on September 9, 2025
• D.A. Davidson 24th Annual Diversified Industrials & Services Conference – Nashville, TN on September 18, 2025

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 the conferences.

About Primoris

Primoris Services Corporation is a leading provider of 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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