Established in 2002, OnQuest Inc. is an industry leader in applied combustion technology and turnkey process plants for the energy and petrochemical industry. OnQuest specializes in process plant design and engineering for liquefied natural gas (LNG), hydrogen, ammonia, and syngas, and direct-fired furnaces and related combustion technologies, along with construction project management. OnQuest also provides burner management systems and clean-air and NOx technologies. OnQuest's principal offices are in San Dimas, Calif., and Calgary, Alberta; the firm has regional offices in Houston, Tex., and San Francisco, Calif., and sales representatives worldwide. OnQuest is a subsidiary of Primoris Services Corporation (NASDAQ: PRIM), one of the nation's largest specialty civil construction companies.