About

Sain Associates, Inc. is a multi-disciplined consulting engineering firm specializing in traffic/transportation engineering and planning, site engineering, infrastructure design, surveying, construction engineering and inspection, and professional GIS services. Incorporated in 1972 to provide site engineering and surveying services, the firm added transportation engineering services in 1993. Our corporate headquarters is located in Birmingham, Alabama, with branch offices located in Huntsville, Auburn/Opelika, and Mobile, Alabama, and Pulaski, Tennessee.