Corporate Information

Message from the CEOCompany Profile

Message from the CEO

Since the company’s founding in 1962, the social environment surrounding us has changed rapidly and the needs of society have diversified. Today, houses and buildings require highly-advanced functions, high performance, and high quality of design. We believe that our mission is to satisfy these needs. Nihon Keisou is engaged in the window frame business to supply aluminum building materials, the ALC business to provide exterior materials for high-rise buildings, such as ALC boards and extrusion molded cement boards, as well as the renovation business to renovate existing condominiums and buildings as social stocks. Our corporate philosophy is “to treat the hearts of customers and users with importance.” As a member of the construction industry, we provide highly-advanced techniques and contribute to the creation of homes, cities and society through our businesses.

President CEO Ryo Tominaga

Corporation Profile

Corporate Name
Nihon Keisou Co., Ltd
July, 1962
22 million 500 thousand yen
Address of
Head Office
8-2, Iwamotocho 2-chome, Chiyoda-ku, Tokyo 101-0032, Japan →[MAP]
Tel: 03-3865-2414 (+81-3-3865-2414) /Fax: 03-3865-2410 (+81-3-3865-2410)
Ryo Tominaga, President CEO
Our Banks
MUFG Bank, Ltd. (Kanda Branch), Mizuho Bank, Ltd. (Yokoyamacho Branch), and Resona Bank, Limited. (Akihabara Branch)
Window frame businessALC business
Renovation business

8-2, Iwamotocho 2-chome, Chiyoda-ku, Tokyo, Japan
Tel: 03-3865-2414 (+81-3-3865-2414)
Fax: 03-3865-2410 (+81-3-3865-2410)