Kobai Co. Ltd.
A construction company based in Yokohama, Japan, with roots dating back to 1924.
Last updated September 2, 2026
AI crawler reads
No AI crawler has read this profile since Oct 28, 2026.
Overview
Kobai Co. Ltd. is a Japanese construction company headquartered in Yokohama, Kanagawa Prefecture. It was founded in 1924 as Ogawara-gumi and incorporated as Kobai Co. Ltd. in 1946. The company engages in construction and civil engineering, real estate transactions, and related businesses, primarily in Kanagawa Prefecture and Tokyo.
History
Kobai Co. Ltd. traces its origins to October 1924, when Chuichi Ogawara founded Ogawara-gumi in Sakuragicho, Naka-ku, Yokohama. In March 1946, the company was incorporated as Kobai Co. Ltd., with Chuichi Ogawara as the first president. Over the years, the company has been led by successive presidents and has expanded its operations. In 1998, it became the first general construction company in Kanagawa Prefecture to obtain ISO 9001 certification for its construction division. In 2004, it obtained ISO 14001 certification. In January 2023, a new head office building was completed in Tobehoncho, Nishi-ku, Yokohama.
Products and positioning
Product categories. Construction · Civil engineering · Real estate transactions
Sources5 sources
Cite this profile: Cite the canonical profile. /brand-wiki/kobai-co-ltd · Editorial policy · How profiles are compiled