| # | Company | Employees |
|---|---|---|
| 1 |
SUMITOMO ELECTRIC INTERCON'T PROD (M) SBsumitomoelectric.com
A global network of 414 companies in 40 countries, originally focused on copper wire production, now diversified into automotive, infocommunications, electronics, environment, energy, and industrial materials |
289,000 |
| 2 |
Nissan Motor Corporationnissan-global.com
A global car manufacturer offering a range of vehicles under the Nissan and INFINITI brands, dedicated to sustainable mobility Follow on social media for updates |
47,419 |
| 3 |
Hitachihitachi.com
A technology and innovation company committed to creating a more sustainable society through advanced social infrastructure systems and improving quality of life |
40,513 |
| 4 |
Toyota Motor Corporationglobal.toyota
Global automotive industry leader manufacturing vehicles in twenty-seven countries and marketing products across over one hundred seventy regions with hundreds of thousands employees. |
38,930 |
| 5 |
Panasonicholdings.panasonic
A company committed to enhancing well-being and society through sustainable solutions, offering superior products and services to help people live their best |
30,689 |
| 6 |
Hondaglobal.honda
A global leader in mobility solutions, specializing in automobiles, motorcycles, power products, and aircraft manufacturing |
25,208 |
| 7 |
Marellimarelli.com
A global supplier to the automotive sector focused on innovation, manufacturing excellence, and creating a safer, greener, and better-connected world |
18,637 |
| 8 |
Astemo Ltd.astemo.com
Development and supply of automotive powertrain, chassis, AD/ADAS, and motorcycle systems focusing on safety, efficiency, and environmental sustainability. |
10,781 |
| 9 |
Mitsubishi Corporationmitsubishicorp.com
Integrated trading and investment company operating across multiple industries including energy, materials, infrastructure, mobility, food, and sustainable solutions worldwide. |
7,347 |
| 10 | 4,786 | |
| 11 | 4,624 | |
| 12 |
Mitsubishi Motors Corporationmitsubishi-motors.com
A global automotive company with 30,000+ employees, 30 production centers worldwide, selling vehicles in 140+ countries, focusing on fulfilling customer ambitions |
4,282 |
| 13 |
HORIBAhoriba.com
The company provides instruments and systems for various industries including automotive, medical diagnostics, semiconductor manufacturing, and scientific research with proven quality and performance |
3,531 |
| 14 |
Woven by Toyota
Innovative global culture combining Silicon Valley innovation with Japanese quality craftsmanship to create safe and intelligent mobility experiences for customers worldwide |
2,464 |
| 15 |
Daimler Truck Asiaasia.daimlertruck.com
A company developing mobility solutions for a better life and planet, combining strengths to provide value products globally while focusing on sustainability |
1,907 |
| 16 |
ALPS ALPINEalpsalpine.com
A global manufacturer of electronic components and automotive infotainment systems, supplying a wide range of products and solutions worldwide |
1,879 |
| 17 |
AESCaesc-group.com
A global leader in high-performance battery development and manufacturing for electric vehicles and energy storage systems, driving the transition to clean energy solutions |
1,862 |
| 18 |
Hitachi Automotive Systemshitachi-automotive.co.jp
Development and supply of powertrain, chassis, and ADAS technologies integrating IoT, AI, and connectivity for sustainable mobility solutions. |
1,761 |
| 19 |
FURUKAWA AUTOMOTIVE SYSTEMS INC.furukawaas.co.jp
An automotive organization headquartered in Osaka, Japan, specializing in automotive systems |
1,741 |
| 20 |
UD Trucksudtrucks.com
A leading Japanese provider of commercial vehicle solutions, dedicated to innovation and providing dependable trucks and services worldwide for smart logistics |
1,582 |
| 21 |
ROHM Co., Ltd.rohm.com
Established in 1958, this company offers high-quality LSI and discrete semiconductors for automotive, industrial, and consumer markets worldwide, specializing in power and analog components |
1,467 |
| 22 |
Kawasaki Heavy Industries, Ltd.global.kawasaki.com
A global technology corporation with diverse products in aerospace, rolling stock, ships, energy solutions, robotics, and leisure products |
1,459 |
| 23 |
Mitsubishi Electric in Indiain.mitsubishielectric.com
A global leader in electrical and electronic equipment manufacturing for various industries, focused on enriching society with innovative technology solutions |
1,294 |
| 24 |
Mitsubishi Fuso Truck and Bus Corporationmitsubishi-fuso.com
Leading commercial vehicle manufacturer driving growth worldwide, focusing on electrification, connectivity, diversity, and career development for young talent and professionals |
1,192 |
| 25 |
INFINITI Motor Companyinfiniti.com
Design and manufacture of premium luxury vehicles focused on providing a personalized driving experience and sophisticated automotive engineering for global markets. |
1,165 |
| 26 |
Bosch Japancorporate.bosch.co.jp
A global leader in technology and innovation, designing cutting-edge solutions for automotive and industrial sectors, with a focus on excellence and progress |
1,021 |
| 27 |
MinebeaMitsumi Inc.minebeamitsumi.com
The company is involved in the manufacturing of machine processed products like bearings, electronic devices, semiconductors, motors, automotive parts, industrial machinery, and home appliances |
867 |
| 28 |
JVCKENWOODjvckenwood.com
A diverse company with leading brands in car electronics, professional systems, optical & audio, and entertainment software for over 80 years |
788 |
| 29 |
DiDi Fooddidimobility.co.jp
A fast and safe food delivery app connecting customers, restaurants, and delivery partners to deliver delicious meals to customers |
779 |
| 30 |
Calsonic Kansei Corporationcalsonickansei.co.jp
Global automotive parts manufacturer focused on creating a comfortable environment through innovative products, technologies, and global management structure |
685 |
| 31 |
East Japan Railway Company (JR East)jreast.co.jp
Operate and maintain extensive railway network including metropolitan, high-speed, and regional trains, serving millions daily with advanced technology. |
680 |
| 32 |
KYB Corporationkyb.co.jp
A leading hydraulics company specializing in automotive shock absorbers with global presence, advanced technology, and strong commitment to innovation and sustainability |
658 |
| 33 |
FURUKAWA ELECTRIC GROUPfurukawa.co.jp
A global leader in developing advanced materials and technologies for telecommunications, energy, automotive, and electronics industries to enable a sustainable society |
633 |
| 34 |
STANLEY ELECTRIC CO., LTD.stanley-electric.com
A leading electrical manufacturer specializing in automotive lighting, optoelectronics, and UV products, with a focus on maximizing the value of light |
624 |
| 35 |
Honda R&D Co., Ltd.honda.co.jp
Specializing in research and development, established as a separate entity in 1960 with ownership split among key figures |
579 |
| 36 |
EKK Eagle Industry Co., Ltd.ekkeagle.com
Provider of sealing and control solutions for automotive industry, including water pump seals, air conditioning seals, and control valves. |
343 |
| 37 |
Subaru Corporationsubaru.co.jp
A Japanese multinational corporation involved in terrestrial and aerospace transportation manufacturing, known for its automobiles and aerospace defense contracting |
229 |
| 38 |
The Yokohama Rubber Co., Ltd.y-yokohama.com
Manufactures and sells a wide range of tires, rubber products, conveyor belts, marine equipment, and other products for various industries |
216 |
| 39 |
GS Yuasags-yuasa.com
A leading manufacturer of automotive batteries, industrial batteries, power supply systems, and electrical equipment, focused on innovation, growth, and customer satisfaction |
152 |
| 40 |
Audi Japanaudi.co.jp
Innovative manufacturer of sporty vehicles known for high build quality, progressive design, cutting-edge technology, and commitment to employee development |
56 |
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.
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