Tokyo Koki Group and KOUBAI SEIKI Co., Ltd. Conclude Business Alliance Agreement to Strengthen Sales System
Tokyo Koki Group and KOUBAI SEIKI Co., Ltd. have formed a business alliance to strengthen the sales system in the Chugoku region.
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- 📰 Published: April 1, 2026 at 19:00
Tokyo Koki Testing Machine Co., Ltd. (Headquarters: Sagamihara City, Kanagawa Prefecture; Representative Director and President: Eiichiro Kozuka; hereinafter "Tokyo Koki Testing Machine"), a subsidiary of our company, and KOUBAI SEIKI Co., Ltd. (Headquarters: Hiroshima City, Hiroshima Prefecture; Representative Director and President: Masaharu Tazoe; hereinafter "KOUBAI SEIKI") are pleased to announce that they have concluded a business alliance agreement aimed at strengthening their sales system in the Chugoku region, primarily Hiroshima Prefecture.
Our company is promoting the strengthening of sales capabilities in the western Japan region as part of a sales strategy for the sustainable growth of the testing machine business. The Chugoku region, centered in Hiroshima Prefecture, is home to diverse industries such as automotive, steel, and shipbuilding, making it an important area for our company.
KOUBAI SEIKI has been engaged in community-based testing machine sales and maintenance services for 48 years since its establishment.
Through this business alliance, by leveraging the strengths of both companies, we will provide new solutions centered on custom-made testing machines, and work to further enhance customer value rooted in the region and strengthen our sales foundation.
## About KOUBAI SEIKI Co., Ltd.
KOUBAI SEIKI develops maintenance and adjustment of testing and measuring instruments, JCSS calibration, and related businesses for standard testing machines. It is a company that possesses practical responsiveness and on-site knowledge close to local manufacturing industries, and is responsible for supporting the testing and measurement fields.
Company Name: KOUBAI SEIKI Co., Ltd.
Location: 1-1-26 Otemachi, Naka-ku, Hiroshima City, Hiroshima Prefecture
Representative Director and President: Masaharu Tazoe
Business Activities: Maintenance and adjustment of testing and measuring instruments, JCSS calibration, standard testing machine related businesses, etc.
## About Tokyo Koki Testing Machine Co., Ltd.
Tokyo Koki Testing Machine Co., Ltd., as a business company of the Tokyo Koki Group, develops the manufacturing and sales of testing and measuring instruments and related services. Through various solutions including material testing machines, it contributes to improving quality and developing technology in manufacturing sites and R&D fields.
Company Name: Tokyo Koki Testing Machine Co., Ltd.
Representative: Representative Director and President Eiichiro Kozuka
Head Office Location: 315 Mitsui, Midori-ku, Sagamihara City, Kanagawa Prefecture
Sales Bases: Tokyo Branch (Sagamihara City, Kanagawa Prefecture), Chubu Branch (Toyohashi City, Aichi Prefecture), Osaka Branch (Osaka City), Hiroshima Office (Hiroshima City), National agencies and sales partners
Production Bases: Sagamihara Plant (Sagamihara City, Kanagawa Prefecture), Toyohashi Plant (Toyohashi City, Aichi Prefecture)
HP: https://shikenki-tksnet.co.jp/
## About Tokyo Koki Co., Ltd.
Tokyo Koki Co., Ltd. is the holding company of the Tokyo Koki Group, responsible for formulating and executing the group's overall management strategy, and for overseeing and supporting its group subsidiaries.
Company Name: Tokyo Koki Co., Ltd.
Representative Director and President: Eiichiro Kozuka
Head Office Location: N.E.S. Building N Tower 5F, 22-14 Sakuragaoka-cho, Shibuya-ku, Tokyo
HP: https://tk100.jp/
Our company is promoting the strengthening of sales capabilities in the western Japan region as part of a sales strategy for the sustainable growth of the testing machine business. The Chugoku region, centered in Hiroshima Prefecture, is home to diverse industries such as automotive, steel, and shipbuilding, making it an important area for our company.
KOUBAI SEIKI has been engaged in community-based testing machine sales and maintenance services for 48 years since its establishment.
Through this business alliance, by leveraging the strengths of both companies, we will provide new solutions centered on custom-made testing machines, and work to further enhance customer value rooted in the region and strengthen our sales foundation.
## About KOUBAI SEIKI Co., Ltd.
KOUBAI SEIKI develops maintenance and adjustment of testing and measuring instruments, JCSS calibration, and related businesses for standard testing machines. It is a company that possesses practical responsiveness and on-site knowledge close to local manufacturing industries, and is responsible for supporting the testing and measurement fields.
Company Name: KOUBAI SEIKI Co., Ltd.
Location: 1-1-26 Otemachi, Naka-ku, Hiroshima City, Hiroshima Prefecture
Representative Director and President: Masaharu Tazoe
Business Activities: Maintenance and adjustment of testing and measuring instruments, JCSS calibration, standard testing machine related businesses, etc.
## About Tokyo Koki Testing Machine Co., Ltd.
Tokyo Koki Testing Machine Co., Ltd., as a business company of the Tokyo Koki Group, develops the manufacturing and sales of testing and measuring instruments and related services. Through various solutions including material testing machines, it contributes to improving quality and developing technology in manufacturing sites and R&D fields.
Company Name: Tokyo Koki Testing Machine Co., Ltd.
Representative: Representative Director and President Eiichiro Kozuka
Head Office Location: 315 Mitsui, Midori-ku, Sagamihara City, Kanagawa Prefecture
Sales Bases: Tokyo Branch (Sagamihara City, Kanagawa Prefecture), Chubu Branch (Toyohashi City, Aichi Prefecture), Osaka Branch (Osaka City), Hiroshima Office (Hiroshima City), National agencies and sales partners
Production Bases: Sagamihara Plant (Sagamihara City, Kanagawa Prefecture), Toyohashi Plant (Toyohashi City, Aichi Prefecture)
HP: https://shikenki-tksnet.co.jp/
## About Tokyo Koki Co., Ltd.
Tokyo Koki Co., Ltd. is the holding company of the Tokyo Koki Group, responsible for formulating and executing the group's overall management strategy, and for overseeing and supporting its group subsidiaries.
Company Name: Tokyo Koki Co., Ltd.
Representative Director and President: Eiichiro Kozuka
Head Office Location: N.E.S. Building N Tower 5F, 22-14 Sakuragaoka-cho, Shibuya-ku, Tokyo
HP: https://tk100.jp/
FAQ
What is the purpose of this business alliance?
The purpose is to strengthen the sales system for the testing machine business in the Chugoku region, centered in Hiroshima Prefecture.
What kind of company is KOUBAI SEIKI Co., Ltd.?
It is a local specialist company that performs maintenance, adjustment, and JCSS calibration of testing and measuring instruments.
What benefits will customers receive from this alliance?
New, more localized solutions, including custom-made testing machines, will be provided.