PRIMU Primoris Services - Units (MM)

Primoris Services Corporation (Nasdaq:PRIM) (Nasdaq:PRIMW) ("Primoris") today announced that Peter J. Moerbeek, EVP and Chief Financial Officer, is scheduled to present at the Morgan Joseph 2010 Best Ideas Conference on Wednesday, June 9, 2010 at 10:30 am Eastern Time / 7:30 am Pacific Time. The event is taking place at the Millennium Broadway Hotel in New York City. The presentation will also be broadcast live and replayed via the "Investor Relations" section of Primoris's website at www.primoriscorp.com. 

About Primoris

Primoris, through various subsidiaries, is 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 and replacement services, as well as engineering services to major public utilities, petrochemical companies, energy companies, municipalities and other customers. With the recent acquisition of James Construction Group, Primoris has a significant presence in the Gulf States region where it provides heavy civil construction services. Primoris is also a leading water and wastewater contractor in the state of Florida, and a specialist in designing and constructing complex commercial and industrial concrete structures in California. For additional information on Primoris, please visit www.primoriscorp.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@primoriscorp.com
         
         The Equity Group Inc.
         Devin Sullivan, Senior Vice President
           (212) 836-9608
           dsullivan@equityny.com
         Gerrard Lobo, Senior Account Executive
           (212) 836-9610
           globo@equityny.com