Onyx Consulting Engineers is a full-service engineering solutions company that serves the petrochemical, refinery, pipeline, marine, terminal, civil, and oil and gas industries. The company has a staff of mechanical, marine, chemical, structural and electrical engineers. It provides project management, process engineering, naval architecture, bulk storage, regulatory compliance, permitting, and research and development services. Onyx Consulting Engineers specializes in the fabrication and installation of offshore platforms. Its clients include Amerada Hess Corporation, Kerr McGee Corporation, Anadarko Petroleum Corporation, Apache Corporation, LLOG Exploration Company and Newfield Exploration Company. Headquartered in Houston, Onyx Consulting Engineers also maintains offices in Galveston, Texas, and Lafayette and Harvey, La.