# Top 50 corporate groups and holding companies in Japan

Tamtam tracks 181 corporate groups and holding companies headquartered in Japan. This list ranks the 50 largest by number of employees on LinkedIn, led by Komatsu, Japan Tobacco Inc. (JT) and Honda. Their median headcount is 4,375. Half of them were founded in 1954 or later. The most common headquarters are Tokyo (10).

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.

🇯🇵 Japan · 50 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Komatsu](https://www.tamtam.ai/c/komatsu) (komatsu.jp)<br>Innovating manufacturing and technology to create value for a sustainable future where people, businesses, and the planet flourish together | Machinery Manufacturing | 🇯🇵 Tokyo | 60,000 | 1921 |
| 2 | [Japan Tobacco Inc. (JT)](https://www.tamtam.ai/c/japan-tobacco-inc-jt) (jt.com)<br>A global company in tobacco, pharmaceutical, and processed food sectors, focusing on sustainability and stakeholder value through innovation and responsible products | Tobacco Manufacturing | 🇯🇵 Minato-ku | 33,449 |  |
| 3 | [Honda](https://www.tamtam.ai/c/honda) (global.honda)<br>A global leader in mobility solutions, specializing in automobiles, motorcycles, power products, and aircraft manufacturing | Motor Vehicle Manufacturing | 🇯🇵 Minato-ku | 25,208 |  |
| 4 | [dentsu](https://www.tamtam.ai/c/dentsu) (dentsu.com)<br>Helping brands predict future opportunities and create growth paths by connecting brand, content, commerce, and experience with creativity. | Advertising Services | 🇯🇵 Tokyo | 19,298 |  |
| 5 | [Mitsubishi Heavy Industries](https://www.tamtam.ai/c/mitsubishi-heavy-industries) (mhi.com)<br>Delivers innovative integrated solutions across power, energy, machinery, infrastructure, aerospace, and defense, advancing lives and environmental sustainability globally. | Industrial Machinery Manufacturing | 🇯🇵 Chiyoda-ku | 15,162 |  |
| 6 | [Mizuho](https://www.tamtam.ai/c/mizuho) (mizuhogroup.com)<br>This company offers a unique and inclusive culture, providing opportunities for career growth and global impact in the financial industry | Financial Services | 🇯🇵 Tokyo | 15,086 |  |
| 7 | [TDK](https://www.tamtam.ai/c/tdk) (tdk.com)<br>A global leader in electronic solutions, specializing in passive components, sensors, power supplies, and energy devices for automotive, industrial, and consumer electronics markets | Appliances, Electrical, and Electronics Manufacturing | 🇯🇵 Chuo-ku | 13,086 | 1935 |
| 8 | [Yamaha Corporation](https://www.tamtam.ai/c/yamaha-corporation) (yamaha.com)<br>Manufacturer and provider of musical instruments, sound-related products, and services focused on enriching lives through music and culture. | Musicians | 🇯🇵 Hamamatsu | 13,023 |  |
| 9 | [Marubeni Corporation](https://www.tamtam.ai/c/marubeni-corporation) (marubeni.com)<br>Global trading company with diverse sectors including lifestyle, food, energy, infrastructure, finance, aerospace, and next-generation business development. | International Trade and Development | 🇯🇵 Chiyoda-ku | 10,839 |  |
| 10 | [LIXIL](https://www.tamtam.ai/c/lixil) (lixil.com)<br>Development and manufacturing of innovative water and housing products, improving home quality and accessibility worldwide with trusted brands. | Manufacturing | 🇯🇵 Shinagawa | 10,685 |  |
| 11 | [Asahi Kasei](https://www.tamtam.ai/c/asahi-kasei) (asahi-kasei.com)<br>Global company providing healthcare products, residential solutions, and advanced materials to improve life quality and support sustainable development worldwide. | Chemical Manufacturing | 🇯🇵 Tokyo | 10,369 | 1922 |
| 12 | [NX GROUP (NIPPON EXPRESS GROUP)](https://www.tamtam.ai/c/nx-group-nippon-express-group) (nipponexpress.com)<br>Comprehensive global freight forwarding and logistics services with a strong presence in 57 countries and a history since 1937. | Transportation, Logistics, Supply Chain and Storage | 🇯🇵 Chiyoda-ku | 8,927 | 1937 |
| 13 | [Yokogawa](https://www.tamtam.ai/c/yokogawa) (yokogawa.com)<br>Provides measurement, control, information solutions across diverse industries; optimizes production, assets, supply chains with digital technologies; enables autonomous operations. | Automation Machinery Manufacturing | 🇯🇵 Tokyo | 8,675 |  |
| 14 | [Mitsubishi Corporation](https://www.tamtam.ai/c/mitsubishi-corporation) (mitsubishicorp.com)<br>Integrated trading and investment company operating across multiple industries including energy, materials, infrastructure, mobility, food, and sustainable solutions worldwide. | International Trade and Development | 🇯🇵 Tokyo | 7,347 |  |
| 15 | [NRI Group](https://www.tamtam.ai/c/nri-group) (nri.com)<br>Providing insight-driven research, consulting, and managed services including IT solutions, cybersecurity, and digital marketing to enhance client performance. | IT Services and IT Consulting | 🇯🇵 Chiyoda-ku | 7,257 | 1965 |
| 16 | [transcosmos inc.](https://www.tamtam.ai/c/transcosmos-inc) (trans-cosmos.co.jp)<br>It provides cost reduction and sales expansion services, focusing on digital transformation and e-commerce solutions across 32 countries globally. | IT Services and IT Consulting | 🇯🇵 Toshima-ku | 7,159 | 1966 |
| 17 | [Canon Inc.](https://www.tamtam.ai/c/canon-inc) (global.canon)<br>Manufacturing and marketing of imaging equipment, printers, cameras, medical systems, and semiconductor manufacturing equipment with global presence and R&D. | Retail Office Equipment | 🇯🇵 Ohta-ku | 6,597 | 1937 |
| 18 | [Sumitomo Corporation](https://www.tamtam.ai/c/sumitomo-corporation-chiyoda-ku) (sumitomocorp.com)<br>Global network engaged in diverse business activities with focus on integrated strength, creating value for stakeholders and society for sustainable growth | International Trade and Development | 🇯🇵 Chiyoda-ku | 6,379 | 1919 |
| 19 | [Tokyo Electron](https://www.tamtam.ai/c/tokyo-electron) (tel.com)<br>A leading semiconductor manufacturing equipment company providing high-performance products and services worldwide, focusing on customer satisfaction, innovation, and technology advancement | Semiconductor Manufacturing | 🇯🇵 Minato-ku | 6,269 |  |
| 20 | [Unicharm](https://www.tamtam.ai/c/unicharm) (unicharm.co.jp)<br>A Japanese company manufacturing disposable hygiene, household cleaning, and pet care products, specializing in diapers for babies and adults globally Market leader in Asia | Manufacturing | 🇯🇵 Minato | 5,361 | 1961 |
| 21 | [NYK Line](https://www.tamtam.ai/c/nyk-line) (nyk.com)<br>An international company specializing in logistics services, offering comprehensive supply chain solutions to help businesses efficiently transport goods worldwide | Maritime Transportation | 🇯🇵 Tokyo | 5,213 |  |
| 22 | [AGC Group](https://www.tamtam.ai/c/agc-group) (agc.com)<br>supplier of flat, automotive, display glass, chemicals, ceramics, and high-tech materials with global operations and strong innovation focus | Glass, Ceramics and Concrete Manufacturing | 🇯🇵 Tokyo | 4,786 |  |
| 23 | [NSG Group](https://www.tamtam.ai/c/nsg-group) (nsg.com)<br>Manufactures glass and glazing products for architectural, automotive, and technical sectors with global operations and diverse product applications. | Glass, Ceramics and Concrete Manufacturing | 🇯🇵 Minato-ku | 4,624 | 1918 |
| 24 | [SoftBank](https://www.tamtam.ai/c/softbank) (softbank.jp)<br>Innovative company utilizing AI, IoT, and robotics to drive the Information Revolution, expanding business domains with a focus on societal impact and workstyle reform | IT Services and IT Consulting | 🇯🇵 Minato | 4,471 | 1986 |
| 25 | [KYOCERA Global](https://www.tamtam.ai/c/kyocera-global) (global.kyocera.com)<br>Development of fine ceramics, semiconductor components, electronic devices, AI, IoT systems, and document solutions addressing critical global issues. | Appliances, Electrical, and Electronics Manufacturing | 🇯🇵 Kyoto City | 4,375 |  |
| 26 | [Mitsubishi Motors Corporation](https://www.tamtam.ai/c/mitsubishi-motors-corporation) (mitsubishi-motors.com)<br>A global automotive company with 30,000+ employees, 30 production centers worldwide, selling vehicles in 140+ countries, focusing on fulfilling customer ambitions | Motor Vehicle Manufacturing | 🇯🇵 Minato-ku | 4,282 | 1970 |
| 27 | [JGC](https://www.tamtam.ai/c/jgc) (jgc.com)<br>A global group operating in Total Engineering and Functional Materials Manufacturing, contributing to economic growth and industrial development in various countries | Oil and Gas | 🇯🇵 Minato Mirai | 4,235 | 1928 |
| 28 | [Sysmex Corporation](https://www.tamtam.ai/c/sysmex-corporation) (sysmex.co.jp)<br>A global leader in in vitro diagnostics, dedicated to innovating personalized medicine and novel treatments to improve healthcare worldwide | Medical Equipment Manufacturing | 🇯🇵 Chuo-ku | 4,045 | 1968 |
| 29 | [LINE](https://www.tamtam.ai/c/line-chiyoda-ku) (lycorp.co.jp)<br>A leading messenger and life platform offering a wide range of services in chat messaging, entertainment, fintech, and lifestyles globally | Software Development | 🇯🇵 Chiyoda-ku | 3,996 |  |
| 30 | [Advantest](https://www.tamtam.ai/c/advantest) (advantest.com)<br>Leading manufacturer of automatic test and measurement equipment for semiconductor design and production, serving applications such as 5G, IoT, AI, and more globally | Semiconductor Manufacturing | 🇯🇵 Tokyo | 3,901 | 1954 |
| 31 | [dentsu Japan](https://www.tamtam.ai/c/dentsu-japan) (dentsu.co.jp)<br>A network of over 160 group companies in Japan offering services in advertising, business, customer experience, and digital transformations to support client growth | Advertising Services | 🇯🇵 Tokyo | 3,855 |  |
| 32 | [YKK](https://www.tamtam.ai/c/ykk) (ykk.com)<br>A global leader in manufacturing zippers, plastic hardware, fasteners, tapes, and buttons, with a focus on innovation, quality, and sustainability | Textile Manufacturing | 🇯🇵 Chiyoda-ku | 3,716 | 1934 |
| 33 | [Japan Airlines](https://www.tamtam.ai/c/japan-airlines) (jal.com)<br>Operates a large fleet offering extensive domestic and international flights, emphasizing safety, service quality, and traditional Japanese hospitality. | Airlines and Aviation | 🇯🇵 Shinagawa | 3,685 | 1951 |
| 34 | [JAC Recruitment](https://www.tamtam.ai/c/jac-recruitment) (jacgroup.com)<br>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 | Staffing and Recruiting | 🇯🇵 Chiyoda-ku | 3,301 | 1975 |
| 35 | [Kuraray](https://www.tamtam.ai/c/kuraray) (kuraray.com)<br>A global specialty chemical company, focusing on fibers, resins, chemicals, and other products for various industries, committed to innovation and addressing social issues | Chemical Manufacturing | 🇯🇵 Chiyoda-ku | 2,833 | 1926 |
| 36 | [Recruit Co.,Ltd.](https://www.tamtam.ai/c/recruit-co-ltd) (recruit.co.jp)<br>Global managing affiliate company overseeing Recruit Group's strategy, globalization, R&D for business technology, and leadership development across 28 countries | IT Services and IT Consulting | 🇯🇵 Chiyoda | 2,723 | 2012 |
| 37 | [Mitsui Chemicals Group](https://www.tamtam.ai/c/mitsui-chemicals-group) (mitsuichemicals.com)<br>A multinational chemical company, listed on the Tokyo Stock Exchange, that develops environmentally friendly materials for various industries globally | Chemical Manufacturing | 🇯🇵 Chuo | 2,715 | 1997 |
| 38 | [PHC Holdings Corporation](https://www.tamtam.ai/c/phc-holdings-corporation) (phchd.com)<br>Global healthcare company specializing in diabetes management, healthcare solutions, life sciences, and diagnostics with a mission to improve lives worldwide | Medical Equipment Manufacturing | 🇯🇵 Chiyoda-ku | 2,610 | 2014 |
| 39 | [Kyowa Kirin Co., Ltd.](https://www.tamtam.ai/c/kyowa-kirin-co-ltd) (kyowakirin.com)<br>Development of novel medicines, next-generation antibodies, and cell and gene therapies targeting severe and rare diseases globally. | Pharmaceutical Manufacturing | 🇯🇵 Chiyoda-ku | 2,582 |  |
| 40 | [KDDI Corporation](https://www.tamtam.ai/c/kddi-corporation) (kddi.com)<br>Global telecommunications provider offering data centers, networks, mobile services, and submarine cable infrastructure across multiple international locations. | Telecommunications | 🇯🇵 Tokyo | 2,510 | 1984 |
| 41 | [株式会社パソナ (Pasona Inc.)](https://www.tamtam.ai/c/pasona-inc) (pasona.co.jp)<br>The company focuses on creating social infrastructure to provide job opportunities for individuals to pursue fulfilling careers and lifestyles | Staffing and Recruiting | 🇯🇵 Chiyoda | 2,442 | 1976 |
| 42 | [LY Corporation](https://www.tamtam.ai/c/ly-corporation) (lycorp.co.jp)<br>A leading tech organization in Japan offering diverse services such as search, e-commerce, communication, and advertising to create amazing user experiences | Software Development | 🇯🇵 Chiyoda-ku | 2,420 | 2023 |
| 43 | [Mitsui O.S.K. Lines, Ltd.](https://www.tamtam.ai/c/mitsui-o-s-k-lines-ltd) (mol.co.jp)<br>A company with over 140 years of experience in international ocean shipping, generating added value and contributing to global industries | Transportation, Logistics, Supply Chain and Storage | 🇯🇵 Minato-ku | 2,163 | 1884 |
| 44 | [Recruit Group](https://www.tamtam.ai/c/recruit-group) (recruit-holdings.com)<br>This company connects individuals and businesses by offering a variety of choices in recruitment, HR services, and promotional media | Information Services | 🇯🇵 Japan | 2,144 |  |
| 45 | [ITOCHU Corporation](https://www.tamtam.ai/c/itochu-corporation) (itochu.co.jp)<br>Engages in domestic and international trading of textiles, machinery, metals, energy, chemicals, food, ICT, finance, and real estate. | Wholesale Import and Export | 🇯🇵 Minato | 1,987 | 1858 |
| 46 | [AEON_ AEON Co., Ltd.](https://www.tamtam.ai/c/aeon-aeon-co-ltd) (recruit.aeon.info)<br>A major retailer in Japan known as one of the largest in the country, offering a wide range of products and services | Retail | 🇯🇵 | 1,958 | 1926 |
| 47 | [Daifuku](https://www.tamtam.ai/c/daifuku) (daifuku.com)<br>Provider of comprehensive material handling solutions to enhance global competitiveness, addressing logistics challenges with technology and expertise across various industries worldwide | Automation Machinery Manufacturing | 🇯🇵 Osaka | 1,932 | 1937 |
| 48 | [Toyota Automated Logistics](https://www.tamtam.ai/c/toyota-automated-logistics) (toyota-automated-logistics.com)<br>A leading provider of advanced logistics solutions, including automation, systems integration, and supply chain management, aiming to excel in the global market | Automation Machinery Manufacturing | 🇯🇵 Kariya | 1,918 | 2026 |
| 49 | [Daimler Truck Asia](https://www.tamtam.ai/c/daimler-truck-asia) (asia.daimlertruck.com)<br>A company developing mobility solutions for a better life and planet, combining strengths to provide value products globally while focusing on sustainability | Motor Vehicle Manufacturing | 🇯🇵 Kawasaki | 1,907 |  |
| 50 | [Mitsubishi Chemical Group](https://www.tamtam.ai/c/mitsubishi-chemical-group) (mcgc.com)<br>Leading innovative solutions in mobility, digital, medical, and food sectors to enhance well-being of people and the planet. | Chemical Manufacturing | 🇯🇵 Chiyoda-ku | 1,904 |  |

## 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

- [The largest companies in Japan](https://www.tamtam.ai/l/largest-companies-japan) (932)
- [Multinational companies in Japan](https://www.tamtam.ai/l/multinational-companies-japan) (470)
- [Companies with in-house R&D in Japan](https://www.tamtam.ai/l/r-and-d-companies-japan) (287)
- [Manufacturers in Japan](https://www.tamtam.ai/l/manufacturers-japan) (224)
- [Publicly traded companies in Japan](https://www.tamtam.ai/l/publicly-traded-companies-japan) (209)
- [Hardware manufacturers in Japan](https://www.tamtam.ai/l/hardware-companies-japan) (142)
- [IT Services and IT Consulting companies in Japan](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-japan) (105)
- [Education providers in Japan](https://www.tamtam.ai/l/education-companies-japan) (75)
- [Companies with a mobile app in Japan](https://www.tamtam.ai/l/companies-with-mobile-app-japan) (69)
- [Professional services firms in Japan](https://www.tamtam.ai/l/professional-services-firms-japan) (69)
- [Electronics and semiconductor companies in Japan](https://www.tamtam.ai/l/electronics-companies-japan) (68)
- [IT services companies in Japan](https://www.tamtam.ai/l/it-services-companies-japan) (64)
- [AI companies in Japan](https://www.tamtam.ai/l/ai-companies-japan) (63)
- [Automotive manufacturers and suppliers in Japan](https://www.tamtam.ai/l/automotive-companies-japan) (60)
- [Critical infrastructure operators in Japan](https://www.tamtam.ai/l/critical-infrastructure-operators-japan) (59)
- [Higher Education companies in Japan](https://www.tamtam.ai/l/higher-education-companies-japan) (57)
- [Research institutes in Japan](https://www.tamtam.ai/l/research-institutes-japan) (55)
- [Consulting firms in Japan](https://www.tamtam.ai/l/consulting-firms-japan) (52)
- [Chemical companies in Japan](https://www.tamtam.ai/l/chemical-companies-japan) (51)
- [Financial services firms in Japan](https://www.tamtam.ai/l/financial-services-firms-japan) (50)
- [Public sector organisations in Japan](https://www.tamtam.ai/l/public-sector-organisations-japan) (48)
- [Energy companies in Japan](https://www.tamtam.ai/l/energy-companies-japan) (45)
- [Retail chains in Japan](https://www.tamtam.ai/l/retail-chains-japan) (45)
- [Appliances, Electrical, and Electronics Manufacturing companies in Japan](https://www.tamtam.ai/l/appliances-electrical-and-electronics-manufacturing-companies-japan) (40)

## The same list elsewhere in Japan

- [Corporate groups and holding companies in Tokyo](https://www.tamtam.ai/l/holding-companies-tokyo) (32)

## The same list elsewhere

- [Corporate groups and holding companies in the world](https://www.tamtam.ai/l/holding-companies-in-the-world) (12,864)
- [Corporate groups and holding companies in Asia](https://www.tamtam.ai/l/holding-companies-in-asia) (2,718)

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Source: https://www.tamtam.ai/l/holding-companies-japan