Takao Sakai

Nissei Build Kogyo Co., Ltd. engages in the design, manufacture, sales, installation, and lease of prefabricated houses and structures. It operates through the following segments: System Construction, General Construction, Multi-storey Car Park, Development, and Facility Management. The System Construction segment handles the system construction and building rentals. The General Construction segment covers the general civil engineering contracts and non system construction works. The Multi-storey Car Park segment manages the construction of mechanical and self-propelling multi-storey car park. It also offers inspection, renovation, and repair work services. The Development segment develops, leases, and sells real estate properties. The Facility Management segment cleans and maintains buildings and building equipment. The company was founded by Hiroshi Morioka on July 3, 1961 and is headquartered in Kanazawa, Japan.

Space Value Holdings Co., Ltd. engages in the business management of its group companies that deals with system and general construction, and multi-storey parking businesses. The company was founded on October 1, 2018 and is headquartered in Tokyo, Japan.

Part of Space Value Holdings Co., Ltd., NB Construction Co., Ltd. is a Japanese general construction company founded in 1967. The company is based in Yokohama, Japan. NB Construction specializes in large-scale repair work, quality assurance, management systems, and environmental policies for apartments and land utilization. The company has helped build cities, mainly in Kanagawa Prefecture, and have experience in infrastructure construction such as railway construction, large-scale condominium repair work, new construction work, and residential land construction work. NB Construction offers a wide range of solutions for the construction industry.