About Us

ARB, Inc. is the legacy entity among a group of companies that now make up the publicly traded company known as Primoris Services Corporation (PSC). We trade on NASDAQ under the symbol PRIM.    

We have grown through internal expansions and acquisitions to become one of the largest specialty contractors in the United States. We have diversified our operations by expanding our competency into engineering, industrial, underground, structural, and power generation activities.

Headquartered in Lake Forest, California, ARB has several offices throughout California which include; Bakersfield, Pittsburg, Carson, San Diego, and Fairfield. We also have offices located in Texas. ARB owns a vast array of equipment, allowing us to quickly mobilize and staff projects anywhere including remote locations.

We have built long-term relationships and repeat business from many companies including; Sempra, PG&E, BP, Edison, Conoco Phillips, Shell, Chevron, Valero, Venoco, Kinder Morgan Energy Partners, Tesoro, Exxon Mobil, NRG, and Calpine  to name a few.



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