Takeshi Taiga

Nippon COMSYS Corp. provides telecommunications infrastructure services. These includes fiber optic cable installation, cable tunnel construction, and wireless communications base station construction. It also offers general civil engineering services and building construction. The company was founded in December, 1951 and is headquartered in Tokyo, Japan.

Nippon Telegraph & Telephone West Corp. provides regional telecommunication services in the western parts of Japan. The firm's activities include telephone services, integrated digital communications services, leased circuit services and other telecommunication-related activities. The company was founded on July 1, 1999 and is headquartered in Osaka, Japan.

Fujikoatsu Corp. engages in the manufacture and sale of secondary concrete products. It provides the services for retaining walls, roads, culverts, waterways, fire protection water tanks, water pits, underground lines, landscape and others. The company was founded on September 1, 1965 and is headquartered in Kumamoto, Japan.

Kawasaki Reinetsu Denki KK engages in the business of air-conditioning, electrical, plumbing, solar panel, lighting installation and construction work services. The company was founded on December 20, 1967 and is headquartered in Shimonoseki, Japan.