Company profile

General information
Company name Tokyo Plant Co.,ltd.
Founded September 1948
Capital 10million JPY
Director & CEO Kiyohiro Tanaka
Employees 45 employees (as of the end of August 2026)
Business domain Design, manufacture and sales test equipment with related services
Head factory 515-5 Miyazawa-chou, Akishima-city, Tokyo, Japan(ZIP 196-0024)
TEL +81-42-546-6500
FAX +81-42-546-6600
email sales@tokyo-plant.co.jp
URL https://www.tokyo-plant.co.jp/
Banking Partners Shoko Chukin Bank
Japan Finance Corporation
Tama Shinkin Bank
MUFG Bank, Ltd.
Sumitomo Mitsui Banking Corporation
Construction Business License Number License (General‑29) No. 147653 (Machinery and Equipment Installation Work)
Secondhand Dealer License No. 308862516154
Advisory

To ensure that all stakeholders can engage with our company with full confidence, we conduct regular guidance and monitoring by external experts.
We also continue to strengthen our internal compliance and governance frameworks, maintaining sound and responsible management on a daily basis.

Advisory attorney

:Ushigomebashi law firm

https://ushigomelaw.jp/
Advisory tax accountant

:Actus tax corporation Tachikawa - office

https://actus-tachikawa.jp/#
Advisory labor and social security consultant

:Labor and Social Security Attorney Corporation Yamamoto roumu

https://www.yamamoto-roumu.co.jp/
Subsidiary
Company name Tokyo Plant Senegal SARL
Founded September 1948
Director & CEO Kiyohiro Tanaka
Employees 45 employees (as of the end of August 2026)
Business domain Solve water issue in Africa Sales test equipment with related services
Office Rufisque,quartier Sant yalla, Senegal
TEL +81-80-3565-2822 / +221-77-159-9778
email s.samb@tokyo-plant.co.jp
URL https://tokyo-plant-africa.com/
Affiliated company
Company name ENORISE Japan Co.,ltd. (Joint venture with ENORISE SAS)
Founded July 2024
Director & CEO Kiyohiro Tanaka
Employees 5 employees (as of the end of August 2026)
Business domain Sales customized software and test equipment with related services
Office 515-5 Miyazawa-chou, Akishima-city, Tokyo, Japan(ZIP 196-0024)
email kiyohiro.tanaka@enorise.com
URL https://www.enorise.com/
Subsidiary

We are currently a team of approximately 40 professionals, and we are continuing to grow as our business expands.

We are actively recruiting engineers who resonate with our Vision and Mission, and who are eager to contribute to the future of global manufacturing.
If you share our passion for innovation, sustainability, and advanced engineering,
we would be delighted to welcome you to our team.

組織・エンジニアの作業風景
Domestic offices

We currently operate seven locations, including Tokyo, Kanagawa, Shizuoka, and our partner factories.We are strengthening our production capacity to accommodate the increasing number of orders.

Domestic offices

❶Head quarter, factory and technical center

515-5, Miyazawa-chou, Akishima-city, Tokyo, Japan ZIP 196-0024

+81-42-546-6500

http://www.tokyo-plant.co.jp/

sales@tokyo-plant.co.jp

➋Fuji technical office

2776-1,Takenoshita, Oyama-chou, Shuntou-gun,Sizuoka prefecture ZiP 410-1312

➌Fuji technical center (entrusted test )

855-1 Suganuma, Oyama-chou, Shuntou-gun, Sizuoka prefecture ZiP 410-1312

➍Western Japan area sales office

8th Floor, Keihan Kyoto Building,735‑1 Higashi‑Shiokoji‑cho,Karasuma-dori Shichijo-sagaru,Shimogyo-ku, Kyoto City 600-8216

Tokyo-Headquarters and Factory

R&D, Desing, Production

Our headquarters plant serves as one of our most important engineering hubs, where a large number of engineers are engaged in research and development,
mechanical design, and the production of small to mid-sized dynamometers and testing equipment.(Large-scale systems are manufactured at our partner facility in Numazu, Shizuoka.)The site is also equipped with a dedicated test bench for final product verification.All systems undergo full functional testing under real operating conditions to ensure the highest standards of quality and reliability.The facility is further utilized for various R&D activities, supporting the advancement of next-generation powertrain and testing technologies.Located in Akishima City in the Tama area of Tokyo, the plant enjoys an excellent location with quick access from the Chuo Expressway (Hachioji IC).The area is also known for its exceptionally clean industrial water, making it ideal for precision manufacturing and testing.

Test bench for inspection

Test bench for inspection

Engine of GTR

Location & Function

Location & Function

Factory

Factory

Fuji-Technical Center

R&D、Engine Test Service, Pre-Commissioning Test Bech

Our Technical Center provides contract testing and development services for engines and vehicles, supporting performance improvement across a wide range of powertrains, including gasoline, diesel, electric motors, hydrogen engines, and biofuels.In particular, we are one of the few facilities in Japan capable of conducting hydrogen engine (hydrogen gas) testing, an area that has seen significant growth in research and investment in recent years.Located in Oyama Town, Shizuoka Prefecture, the center is situated just minutes from the iconic Fuji Speedway, the heart of Japan’s motorsport culture.

Test Bench

Test Bench

Location & Function

Location & Function

Experiment Module

Experiment Module

Global partner

Leveraging ENORISE’s global network, we have established sales and after‑sales service coverage in more than ten countries worldwide.

Global partner