These are large corporate groups and holding companies in Japan, primarily in manufacturing, financial services, and international trade. Komatsu, with 60,000 employees, specializes in machinery manufacturing. Japan Tobacco Inc. (JT) is a global company in tobacco, pharmaceutical, and processed food sectors. Honda, with 25,208 employees, is a global leader in mobility solutions, while dentsu, with 19,298 employees, focuses on advertising services. Mitsubishi Heavy Industries delivers integrated solutions across various sectors, and Mizuho offers financial services.
The companies on this list are predominantly headquartered in Tokyo or its wards, such as Minato-ku, Chiyoda-ku, and Chuo-ku. This indicates a concentration of major corporate operations within the capital region. Many of these companies were founded in the early to mid-20th century, with Komatsu established in 1921, Asahi Kasei in 1922, TDK in 1935, NX GROUP in 1937, and NRI Group in 1965.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Komatsukomatsu.jp
Innovating manufacturing and technology to create value for a sustainable future where people, businesses, and the planet flourish together |
60,000 | |||
| 2 |
Japan Tobacco Inc. (JT)jt.com
A global company in tobacco, pharmaceutical, and processed food sectors, focusing on sustainability and stakeholder value through innovation and responsible products |
33,449 | |||
| 3 |
Hondaglobal.honda
A global leader in mobility solutions, specializing in automobiles, motorcycles, power products, and aircraft manufacturing |
25,208 | |||
| 4 |
dentsudentsu.com
Helping brands predict future opportunities and create growth paths by connecting brand, content, commerce, and experience with creativity. |
19,298 | |||
| 5 |
Mitsubishi Heavy Industriesmhi.com
Delivers innovative integrated solutions across power, energy, machinery, infrastructure, aerospace, and defense, advancing lives and environmental sustainability globally. |
15,162 | |||
| 6 |
Mizuhomizuhogroup.com
This company offers a unique and inclusive culture, providing opportunities for career growth and global impact in the financial industry |
15,086 | |||
| 7 | 13,086 | ||||
| 8 |
Yamaha Corporationyamaha.com
Manufacturer and provider of musical instruments, sound-related products, and services focused on enriching lives through music and culture. |
13,023 | |||
| 9 |
Marubeni Corporationmarubeni.com
Global trading company with diverse sectors including lifestyle, food, energy, infrastructure, finance, aerospace, and next-generation business development. |
10,839 | |||
| 10 | 10,685 | ||||
| 11 |
Asahi Kaseiasahi-kasei.com
Global company providing healthcare products, residential solutions, and advanced materials to improve life quality and support sustainable development worldwide. |
10,369 | |||
| 12 |
NX GROUP (NIPPON EXPRESS GROUP)nipponexpress.com
Comprehensive global freight forwarding and logistics services with a strong presence in 57 countries and a history since 1937. |
8,927 | |||
| 13 |
Yokogawayokogawa.com
Provides measurement, control, information solutions across diverse industries; optimizes production, assets, supply chains with digital technologies; enables autonomous operations. |
8,675 | |||
| 14 |
Mitsubishi Corporationmitsubishicorp.com
Integrated trading and investment company operating across multiple industries including energy, materials, infrastructure, mobility, food, and sustainable solutions worldwide. |
7,347 | |||
| 15 | 7,257 | ||||
| 16 |
transcosmos inc.trans-cosmos.co.jp
It provides cost reduction and sales expansion services, focusing on digital transformation and e-commerce solutions across 32 countries globally. |
7,159 | |||
| 17 |
Canon Inc.global.canon
Manufacturing and marketing of imaging equipment, printers, cameras, medical systems, and semiconductor manufacturing equipment with global presence and R&D. |
6,597 | |||
| 18 |
Sumitomo Corporationsumitomocorp.com
Global network engaged in diverse business activities with focus on integrated strength, creating value for stakeholders and society for sustainable growth |
6,379 | |||
| 19 |
Tokyo Electrontel.com
A leading semiconductor manufacturing equipment company providing high-performance products and services worldwide, focusing on customer satisfaction, innovation, and technology advancement |
6,269 | |||
| 20 |
Unicharmunicharm.co.jp
A Japanese company manufacturing disposable hygiene, household cleaning, and pet care products, specializing in diapers for babies and adults globally Market leader in Asia |
5,361 | |||
| 21 | 5,213 | ||||
| 22 | 4,786 | ||||
| 23 | 4,624 | ||||
| 24 |
SoftBanksoftbank.jp
Innovative company utilizing AI, IoT, and robotics to drive the Information Revolution, expanding business domains with a focus on societal impact and workstyle reform |
4,471 | |||
| 25 |
KYOCERA Globalglobal.kyocera.com
Development of fine ceramics, semiconductor components, electronic devices, AI, IoT systems, and document solutions addressing critical global issues. |
4,375 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 26 |
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 | |||
| 27 | 4,235 | ||||
| 28 |
Sysmex Corporationsysmex.co.jp
A global leader in in vitro diagnostics, dedicated to innovating personalized medicine and novel treatments to improve healthcare worldwide |
4,045 | |||
| 29 |
LINElycorp.co.jp
A leading messenger and life platform offering a wide range of services in chat messaging, entertainment, fintech, and lifestyles globally |
3,996 | |||
| 30 |
Advantestadvantest.com
Leading manufacturer of automatic test and measurement equipment for semiconductor design and production, serving applications such as 5G, IoT, AI, and more globally |
3,901 | |||
| 31 |
dentsu Japandentsu.co.jp
A network of over 160 group companies in Japan offering services in advertising, business, customer experience, and digital transformations to support client growth |
3,855 | |||
| 32 | 3,716 | ||||
| 33 |
Japan Airlinesjal.com
Operates a large fleet offering extensive domestic and international flights, emphasizing safety, service quality, and traditional Japanese hospitality. |
3,685 | |||
| 34 |
JAC Recruitmentjacgroup.com
Global recruitment consultancy providing specialized services for high-income job positions, with a focus on technology-related roles, interim management solutions, and recruitment process optimization |
3,301 | |||
| 35 |
Kuraraykuraray.com
A global specialty chemical company, focusing on fibers, resins, chemicals, and other products for various industries, committed to innovation and addressing social issues |
2,833 | |||
| 36 |
Recruit Co.,Ltd.recruit.co.jp
Global managing affiliate company overseeing Recruit Group's strategy, globalization, R&D for business technology, and leadership development across 28 countries |
2,723 | |||
| 37 |
Mitsui Chemicals Groupmitsuichemicals.com
A multinational chemical company, listed on the Tokyo Stock Exchange, that develops environmentally friendly materials for various industries globally |
2,715 | |||
| 38 |
PHC Holdings Corporationphchd.com
Global healthcare company specializing in diabetes management, healthcare solutions, life sciences, and diagnostics with a mission to improve lives worldwide |
2,610 | |||
| 39 |
Kyowa Kirin Co., Ltd.kyowakirin.com
Development of novel medicines, next-generation antibodies, and cell and gene therapies targeting severe and rare diseases globally. |
2,582 | |||
| 40 |
KDDI Corporationkddi.com
Global telecommunications provider offering data centers, networks, mobile services, and submarine cable infrastructure across multiple international locations. |
2,510 | |||
| 41 |
株式会社パソナ (Pasona Inc.)pasona.co.jp
The company focuses on creating social infrastructure to provide job opportunities for individuals to pursue fulfilling careers and lifestyles |
2,442 | |||
| 42 |
LY Corporationlycorp.co.jp
A leading tech organization in Japan offering diverse services such as search, e-commerce, communication, and advertising to create amazing user experiences |
2,420 | |||
| 43 |
Mitsui O.S.K. Lines, Ltd.mol.co.jp
A company with over 140 years of experience in international ocean shipping, generating added value and contributing to global industries |
2,163 | |||
| 44 |
Recruit Grouprecruit-holdings.com
This company connects individuals and businesses by offering a variety of choices in recruitment, HR services, and promotional media |
2,144 | |||
| 45 |
ITOCHU Corporationitochu.co.jp
Engages in domestic and international trading of textiles, machinery, metals, energy, chemicals, food, ICT, finance, and real estate. |
1,987 | |||
| 46 |
AEON_ AEON Co., Ltd.recruit.aeon.info
A major retailer in Japan known as one of the largest in the country, offering a wide range of products and services |
1,958 | |||
| 47 |
Daifukudaifuku.com
Provider of comprehensive material handling solutions to enhance global competitiveness, addressing logistics challenges with technology and expertise across various industries worldwide |
1,932 | |||
| 48 |
Toyota Automated Logisticstoyota-automated-logistics.com
A leading provider of advanced logistics solutions, including automation, systems integration, and supply chain management, aiming to excel in the global market |
1,918 | |||
| 49 |
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 | |||
| 50 |
Mitsubishi Chemical Groupmcgc.com
Leading innovative solutions in mobility, digital, medical, and food sectors to enhance well-being of people and the planet. |
1,904 | |||
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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 Nov 12, 2026.
More company lists in Japan
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