Akihiko Iwai

Housetec, Inc. manufactures household and environmental facilities fixtures. It produces and installs systems and furnishings for bathroom and kitchen; water supply, drainage, and plumbing fixtures; and commercial facilities equipment. The firm also develops and supplies cleaning, purification, and treatment agents; purification processing equipment; water treatment devices; medical and healthcare equipment; and thermosetting resins. Its services also include engineering, building construction, equipment installation and electrical work, pipe construction, plumbing work, and facilities cleaning and maintenance. The company was founded on May 1, 2001 and is headquartered in Tokyo, Japan.

Part of Yamada Holdings Co., Ltd., TES Co., Ltd. is a company based in Maebashi, Japan that was founded in 1990. The Japanese company specializes in the repair and maintenance of air-conditioning equipment.