Sonec Corporation operates a general construction business. It builds medical, welfare, education, childcare, cultural, commercial, production, logistics, and religious facilities, as well as housing complexes. The company also undertakes civil engineering work, including roads, bridges, and river construction. In addition, it provides building repair, maintenance, and renewal services, along with design and construction supervision and the lending of construction machinery and equipment. Sonec Corporation was incorporated in 1944 and is headquartered in Takasago, Japan.