Established in 1976, Structural Engineering Associates Inc. is an engineering firm in the United States. Based in San Antonio, Texas, it specializes in the structural design work in a number of areas, such as bridge and retaining wall design, precast concrete design and detailing, water and wastewater treatment facilities, commercial buildings, sporting facilities and schools and churches. Structural Engineering Associates Inc. caters to various clients, which include private firms and governmental agencies, to name a few.