Company Profile

Sumitomo Heavy Industries, Ltd. Drive Technologies SBU

The Sumitomo Heavy Industries Group is an all-around machinery manufacturer engaged in the production of general industrial machinery, precision machinery, construction machinery, ships, environmental plant facilities, and other products. Our Drive Technologies SBU (DT-SBU) is a business unit which develops and produces variable speed gears and gear reducers.

Company Name	Sumitomo Heavy Industries, Ltd. Web Site
Head Office	〒141-6025 ThinkPark Tower, 1-1 Osaki 2-chome, Shinagawa-ku, Tokyo 141-6025, Japan
President	Toshiro Watanabe
Founded	November 20, 1888
Incorporated	November 1, 1934
Capital	30,872 million yen (as of December 31, 2025)
Number of Employees	Consolidated: 25,123(as of December 31, 2025)
Annual Revenue	Consolidated: 1,066.9 billion yen (FY2025)

Sumitomo Heavy Industries Gearbox Co., Ltd.

A production and sales company for large-size gear reducers, gear reducers for special applications, couplings, and other products.

Company Name	Sumitomo Heavy Industries Gearbox Co., Ltd.
Offices	Head office 4-16-1, Wakihama, Kaizuka, Osaka 597-8555, Japan Factory Kaizuka Factory：16-1, Wakihama 4-chome, Kaizuka-shi, Osaka 597-8555, Japan Okayama Factory：8230, Tamashima-Otsushima, Kurashiki, Okayama 713-6353, Japan Branch Offices Eastern region sales office：ThinkPark Tower, 2-1-1 Osaki , Shinagawa-ku, Tokyo 141-6025, Japan Western region sales office：Yodoyabashi Gate Tower, 1-1 Kitahama 4-chome, Chuo-ku Osaka-shi, Osaka 541-0041, Japan Service Center Tokyo Service Center：5-9-13 Bijogi, Toda-shi, Saitama 335-0031, Japan Okayama Service Center：8230, Tamashima-Otoshima, Kurashiki, Okayama 713-8501, Japan
Telephone Number	＋81-72-431-3021
President	Masaomi Hashimoto
Founded	September 25, 1916
Products	Paramax Drive, Large Industrial Gearboxes, Compower Planetary Gear Drive, Hedcon Worm Gear Reducer, SKK GearMoter, Coupling and so on
Capital	840.67 million yen
Employees	462 (as of September 1, 2022)