TBK Co., Ltd.
Japanese manufacturer of brakes, pumps and engine components for commercial vehicles, industrial machinery and construction equipment, founded in 1949.
Last updated September 29, 2026
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Overview
TBK Co., Ltd. is a Japanese automotive and industrial parts manufacturer headquartered in Machida, Tokyo. Founded in August 1949 as Isuzu Buhin Kogyo Co., Ltd., the company was formed through the merger of Isuzu Buhin Kogyo and Tokyo Brake Kogyo in 1956, becoming Tokyo Buhin Kogyo Co., Ltd. It adopted its current name, TBK Co., Ltd., in July 2005. The company has been listed on the Tokyo Stock Exchange since 1971 and is currently listed on the TSE Standard Market. TBK specializes in braking systems, pumps and engine components for commercial vehicles such as trucks and buses, as well as for industrial and construction machinery. Its product lineup includes drum brakes, disc brakes, retarders, brake linings and pads, water pumps, oil pumps, electric pumps, engine camshafts, cylinder heads, crankcases, bearing housings and material processing. The company positions itself as a "commercial vehicle system supplier," supporting safety and reliability through its braking technology and expanding into electrification and carbon neutrality initiatives. TBK operates manufacturing facilities in Japan (Fukushima and Tsukago plants, plus a Tokachi test course in Hokkaido) and overseas subsidiaries in the United States, Thailand, China, India and Hong Kong. Its major customers include Isuzu Motors, Mitsubishi Fuso Truck and Bus, UD Trucks, Hino Motors, Mitsubishi Motors, Mitsubishi Heavy Industries, Kubota, Komatsu, FAW Jiefang, Cummins, Volvo Group and Maruti Suzuki India. As of April 2025, the company employed 1,002 people on a standalone basis and 2,721 on a consolidated basis, with capital of 5,186 million yen. Under the leadership of President Kaoru Ogata, who assumed the role in April 2022, TBK continues to focus on quality, technological innovation and environmental sustainability, aiming to support the future of mobility from the ground up.
History
TBK Co., Ltd. traces its origins to August 1949, when Isuzu Buhin Kogyo Co., Ltd. was established. In March 1951, Tokyo Brake Kogyo Co., Ltd. was founded. The two companies merged in October 1956 to form Tokyo Buhin Kogyo Co., Ltd. A new factory was built in Haginaka, Ota-ku, Tokyo, and the head office and plant were relocated there in December 1957. In August 1963, the company absorbed Daiichi Seiki Co., Ltd. In September 1970, it established Tokyo Seiko Co., Ltd. in Fukushima Prefecture as a subsidiary. The company went public on the Second Section of the Tokyo Stock Exchange in November 1971. In January 1972, the head office and plant moved to Tsukimino, Yamato City, Kanagawa Prefecture. In September 1973, Tsuruoka Brake Co., Ltd. was established in Yamagata Prefecture as a subsidiary. In December 1983, a joint venture with Rockwell International of the U.S., Tokyo Buhin Rockwell Co., Ltd. (predecessor of TBR Corporation), was established. In February 1986, TBK Hanbai Co., Ltd. (now TBK Sales Co., Ltd., a consolidated subsidiary) was founded. In March 1990, a joint venture with C.M. Industry of Thailand, TBK Krungthep Co., Ltd., was established. In November 1990, TBR Corporation absorbed Tsuruoka Brake Co., Ltd. (now Tsuruoka Plant). In August 1995, Full Win Developments Ltd. was established in Hong Kong as a subsidiary. In October 1996, a joint venture with C.M. Industry of Thailand, TBK Brake Co., Ltd. (now TBKK (Thailand) Co., Ltd., a consolidated subsidiary), was established. In October 1998, a joint venture with Rane Brake Lining of India, TBK India Private Ltd., was established. In May 1999, the plant was relocated to Tamakawa Village, Ishikawa District, Fukushima Prefecture. In June 1999, the head office moved to Minaminaruse, Machida City, Tokyo. In November 2000, the former head office plant site was redeveloped into the Tokyo Buhin Kogyo Building (shopping center "Tsukimino Saty," now AEON Tsukimino Store), and the company began a leasing business. In January 2002, TBK America, Inc. was established in the U.S. as a subsidiary. In May 2003, Chang'an TBK Co., Ltd. (now Dongguan TBK Co., Ltd., a consolidated subsidiary) was established in China. In March 2004, the business rights of TBK Krungthep Co., Ltd. were transferred to TBK Brake Co., Ltd. In March 2005, the company's shares were designated for the First Section of the Tokyo Stock Exchange. In July 2005, the company changed its name to TBK Co., Ltd. In August 2005, a joint venture with Changchun Shili Auto Brake Parts Co., Ltd. of China, Changchun TBK SHILI Auto Parts Co., Ltd. (now a consolidated subsidiary), was established. In November 2006, TBK America, Inc.'s Richmond plant began operations. In January 2007, the company obtained ISO/TS16949 certification, and in March 2007, ISO14001 certification. In May 2007, TBK China Co., Ltd. (now Dongguan TBK Co., Ltd., a consolidated subsidiary) was established in China. In February 2011, Qiaotou TBK Co., Ltd. (now Dongguan TBK Co., Ltd., a consolidated subsidiary) was established in China. In September 2011, TBK India Private Ltd. became a consolidated subsidiary. In April 2012, a joint venture with Changchun FAW Sihuan Automotive Brake Co., Ltd. of China was established. TBK has continued to evolve, expanding its global footprint and adapting to industry changes such as electrification and carbon neutrality. The company remains committed to supporting the future of mobility through its braking, pump and engine technologies.
Isuzu Buhin Kogyo Co., Ltd. established
Tokyo Brake Kogyo Co., Ltd. established
Merger of Isuzu Buhin Kogyo and Tokyo Brake Kogyo to form Tokyo Buhin Kogyo Co., Ltd.
New factory built in Ota-ku, Tokyo; head office and plant relocated
Absorbed Daiichi Seiki Co., Ltd.
Established Tokyo Seiko Co., Ltd. in Fukushima Prefecture
Listed on the Second Section of the Tokyo Stock Exchange
Head office and plant moved to Yamato City, Kanagawa Prefecture
Established Tsuruoka Brake Co., Ltd. in Yamagata Prefecture
Joint venture with Rockwell International (Tokyo Buhin Rockwell Co., Ltd.) established
Products and positioning
Commercial vehicle system supplier supporting safety and sustainability through braking, pump and engine technologies.
Brakes
Drum brakes
Brakes
Disc brakes
Brakes
Retarders
Brakes
Brake linings and pads
Pumps
Water pumps
Pumps
Oil pumps
Pumps
Electric pumps
Engine Components
Engine camshafts
Engine Components
Cylinder heads
Engine Components
Crankcases
Engine Components
Bearing housings
Material Processing
Material processing
Sources5 sources
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