PRIMU Primoris Services - Units (MM)

Primoris Services Corporation (Nasdaq:PRIM) ("Primoris"), one of the largest specialty contractors and infrastructure companies in the United States, today announced its eligibility for inclusion in the NASDAQ Global Select Marketsm, the highest of the three market tiers designated by The NASDAQ Stock Market®. Primoris's selection follows an annual review by NASDAQ to determine which companies meet the more stringent listing requirements of The NASDAQ Global Select Market. According to NASDAQ, its Global Select Market is reserved for "...public companies that meet the highest listing standards in the world." 

Primoris's securities will be listed on The NASDAQ Global Select Market effective January 3, 2011.

Brian Pratt, Chairman, President and Chief Executive Officer of Primoris, commented, "We are pleased with our inclusion among the world's most successful and admired public companies. We appreciate the confidence shown in us by our shareholders and the meaningful efforts of all Primoris employees as we continue our growth as a public company."

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 acquisitions of James Construction Group in December 2009 and Rockford Corporation in November 2010, Primoris has doubled its size and the Company's national footprint now extends from Florida, along the Gulf Coast, through California, into the Pacific Northwest and Canada. For additional information, please visit www.prim.com.

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

FORWARD LOOKING STATEMENTS

This press release contains certain forward-looking statements, including with regard to the Company's future performance. Words such as "estimated," "believes," "expects," "projects," "may," and "future" or similar expressions are intended to identify forward-looking statements. Forward-looking statements inherently involve risks and uncertainties, including without limitation, those described in this press release and those detailed in the "Risk Factors" section and other portions of our Annual Report on Form 10-K for the year ended December 31, 2009, our Form 10-Q for the three month period ended September 30, 2010, and other filings with the Securities and Exchange Commission. Primoris does not undertake any obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.

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