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 November – December 2026.

• 2026 Cantor Convergence: 4th Annual Crypto, FinTech, AI & Energy Infrastructure Conference – Miami Beach, FL on November 11, 2026
• 13th Annual ROTH Solar & Storage Symposium at RE+ – Las Vegas, NV on November 17, 2026
• UBS Global Industrials and Transportation Conference 2026 – Manalapan, FL on December 1, 2026
• Oppenheimer Winter Industrial Summit – Virtual on December 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 leading provider of critical infrastructure services to the utility, energy, and renewables markets throughout the United States and Canada. We deliver a range of engineering, construction, and maintenance capabilities that power, connect, and enhance society. On projects spanning utility-scale solar, renewables, power delivery, communications, power generation, 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 @PrimorisServicesCorporation.

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