Primoris Services Corporation to Present At KeyBanc Capital Markets Engineering & Construction Conference

• Press Release
• Source: Primoris Services Corporation
• On 9:00 am EST, Friday December 5, 2008

LAKE FOREST, Calif., Dec. 5, 2008 (GLOBE NEWSWIRE) -- Primoris Services Corporation (NasdaqGM:PRIM - News) (NasdaqGM:PRIMU - News) (NasdaqGM:PRIMW - News) (``Primoris''), one of the largest specialty contractors and engineering companies in the United States, today announced that it is scheduled to present at the 2008 Engineering & Construction Conference sponsored by KeyBanc Capital Markets. This event will be held on Thursday, December 11, 2008 at The Grand Hyatt Hotel in New York City. The presentation will not be webcast, however, the presentation slides will be filed on Form 8-K with the SEC and will be available beginning December 11, 2008.

About Primoris

Primoris, through various subsidiaries, is one of the largest specialty contractors and engineering companies in the United States, primarily serving the growing power and energy sectors. 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. Primoris is also a leading water and wastewater contractor in the Southeast, and a specialist in designing and constructing complex commercial and industrial concrete structures in California.

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

          Primoris Services Corporation  
          John P. Schauerman, Chief Financial Officer        
          (949) 454-7103                 
          jschauerman@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@equitny.com