Goodwin and Marshall, Inc. (G&M) is a full-service civil engineering consulting firm headquartered in Grapevine, Texas. Our principal focus is new development and municipal infrastructure, with an emphasis on residential and commercial/industrial projects. G&M maintains offices in Phoenix, Arizona; Memphis, Tennessee; Denver, Colorado and Grapevine, Texas. Founded in 1986 in Fort Worth, Texas, Goodwin and Marshall, Inc. provides the full range of engineering and development services required to successfully develop property, including; land planning, zoning, platting, site planning, civil construction plan preparation, and surveying.