Goodwin and Marshall, also known as G&M, is a full-service civil engineering consulting firm that has been serving customers since 1986. It specializes in new project development for residential and commercial clients. The company offers zoning, platting, surveying, and site planning and development services. Its services include project planning, floodplain reclamation, annexation, and roadway, drainage and utility design. Goodwin and Marshall conducts various hydrologic and hydraulic engineering studies. The company serves offices, retail stores, golf courses, and industrial, commercial and business parks. Its projects include Burlington Northern Railroad Corporation, Plano Business Park, Chadwick Farms and Airways Industrial Center. Headquartered in Grapevine, Texas, Goodwin and Marshall maintains offices in Memphis, Tenn., and Phoenix.