PRIMU Primoris Services - Units (MM)

Primoris Services Corporation (Nasdaq:PRIM) ("Primoris" or "Company") today announced that Brian Pratt, Chairman, President and Chief Executive Officer, and Peter Moerbeek, Executive Vice President and Chief Financial Officer, will present at the KeyBanc Capital Markets 2010 Engineering, Construction and Utilities Conference on Wednesday, November 17, 2010. The event is taking place at the Grand Hyatt Hotel in New York City. 

The presentation will not be webcast, however, the slides used for this presentation will be available on the "Investor Relations" section of Primoris' website www.prim.com.

ABOUT PRIMORIS

Founded in 1946, Primoris, through various subsidiaries, has grown to become one of the largest specialty contractors and infrastructure companies in the United States. Serving diverse end markets, Primoris provides a wide range of construction, fabrication, maintenance, replacement, water and wastewater, and engineering services to major public utilities, petrochemical companies, energy companies, municipalities, and other customers.  With its acquisition of James Construction Group in December 2009, Primoris has doubled its size and its national footprint now extends from Florida, along the Gulf Coast, through California, and into Canada. For additional information on Primoris, please visit www.prim.com.

The Primoris Services Corporation logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=5527

CONTACT: Primoris Services Corporation
         Peter J. Moerbeek, Executive Vice President, Chief
          Financial Officer
         (949) 454-7121
         pmoerbeek@prim.com

         The Equity Group Inc.
         Devin Sullivan, Senior Vice President
         (212) 836-9608
         dsullivan@equityny.com