| # | Company | Employees |
|---|---|---|
| 1 |
NTT DATA, Inc.services.global.ntt
A global IT services provider offering a wide range of business and technology solutions as it transitions to NTT DATA |
140,000 |
| 2 |
Komatsukomatsu.jp
Innovating manufacturing and technology to create value for a sustainable future where people, businesses, and the planet flourish together |
60,000 |
| 3 |
NTT DATAnttdata.com
Providing IT and business consulting, digital transformation, managed services, and industry solutions to clients worldwide for long-term success. |
48,385 |
| 4 |
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 |
| 5 |
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 |
| 6 |
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 |
| 7 |
Takedatakeda.com
The company is committed to transforming lives by advancing science, focusing on patient needs, and setting new standards in healthcare |
37,267 |
| 8 |
Kao EMEA & Americaskao.com
Leading manufacturer of hygiene, beauty, and health products with premium brands in consumer care, salon, cosmetics, and luxury skincare sectors. |
34,000 |
| 9 |
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 |
| 10 |
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 |
| 11 |
Hondaglobal.honda
A global leader in mobility solutions, specializing in automobiles, motorcycles, power products, and aircraft manufacturing |
25,208 |
| 12 | 24,935 | |
| 13 | 23,529 | |
| 14 |
UNIQLOfastretailing.com
A leading Japanese retail holding company offering high-quality, innovative apparel under the concept of LifeWear in over 25 markets worldwide |
19,984 |
| 15 |
dentsudentsu.com
Helping brands predict future opportunities and create growth paths by connecting brand, content, commerce, and experience with creativity. |
19,298 |
| 16 |
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 |
| 17 |
NEC Corporationnec.com
An industry leader in IT and network integration, focusing on sustainable solutions for safety, security, and efficiency in a rapidly changing world |
17,980 |
| 18 |
Tokio Marine Grouptokiomarinehd.com
Global insurance group offering safety and security worldwide through non-life, life, and financial insurance services, prioritizing customer support and trust |
16,923 |
| 19 |
Nomuranomura.com
A global financial services group connecting markets East & West, serving individuals, institutions, corporates, and governments with creative solutions and thought leadership |
16,671 |
| 20 |
Mitsubishi Heavy Industriesmhi.com
Delivers innovative integrated solutions across power, energy, machinery, infrastructure, aerospace, and defense, advancing lives and environmental sustainability globally. |
15,162 |
| 21 |
Mizuhomizuhogroup.com
This company offers a unique and inclusive culture, providing opportunities for career growth and global impact in the financial industry |
15,086 |
| 22 |
SMBC Groupsmfg.co.jp
A global financial group offering banking, leasing, securities, credit cards, and consumer finance services with over 150 offices worldwide |
13,957 |
| 23 |
Olympus Corporationolympus-global.com
A global company dedicated to developing medical solutions to improve lives by detecting, preventing, and treating diseases while ensuring public safety |
13,679 |
| 24 | 13,086 | |
| 25 |
Yusen Logisticsyusen-logistics.com
Providing international freight forwarding, contract logistics, and supply chain management services with global network and industry-specific expertise. |
13,043 |
| 26 |
Yamaha Corporationyamaha.com
Manufacturer and provider of musical instruments, sound-related products, and services focused on enriching lives through music and culture. |
13,023 |
| 27 |
Astellas Pharmaastellas.com
Development and provision of innovative therapies in oncology, ophthalmology, urology, immunology, and women's health addressing unmet medical needs. |
12,472 |
| 28 |
Renesas Electronicsrenesas.com
It provides embedded semiconductor solutions for automotive, industrial, infrastructure, and IoT industries, focusing on quality and user experience. |
11,993 |
| 29 |
Rakutenrakuten.com
A global ecommerce company offering a wide range of consumer and business services, expanding worldwide and focused on creating a better future |
11,289 |
| 30 |
Marubeni Corporationmarubeni.com
Global trading company with diverse sectors including lifestyle, food, energy, infrastructure, finance, aerospace, and next-generation business development. |
10,839 |
| 31 |
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 |
| 32 | 10,685 | |
| 33 |
Suntory Holdings Limitedsuntory.com
A global consumer products company offering a diverse portfolio of beverages, wellness products, and operating a flower business, committed to social responsibility and growth |
10,535 |
| 34 |
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 |
| 35 |
Sumitomo Electricsumitomoelectric.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 |
9,349 |
| 36 |
AnyMind Groupanymindgroup.com
An end-to-end commerce enablement platform providing a wide range of tools for businesses, publishers, and influencers to drive next-generation commerce globally |
9,204 |
| 37 |
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 |
| 38 |
Shiseidoshiseido.com
A top cosmetics company with international brands in 120 countries, offering beauty solutions for a sustainable society through innovative products and new lifestyle creations |
8,698 |
| 39 |
Yokogawayokogawa.com
Provides measurement, control, information solutions across diverse industries; optimizes production, assets, supply chains with digital technologies; enables autonomous operations. |
8,675 |
| 40 |
TrendAItrendmicro.com
Global cybersecurity company providing AI-powered protection and risk management for enterprises, governments, and consumers across diverse digital environments. |
8,060 |
| 41 |
Muratamurata.com
Global leader in designing, manufacturing, and supplying advanced electronic components and modules for diverse devices and industries worldwide. |
7,404 |
| 42 |
Mitsubishi Corporationmitsubishicorp.com
Integrated trading and investment company operating across multiple industries including energy, materials, infrastructure, mobility, food, and sustainable solutions worldwide. |
7,347 |
| 43 |
The University of Tokyou-tokyo.ac.jp
Leading university offering broad interdisciplinary research, robust liberal arts education, and fostering a vibrant global academic community. |
7,289 |
| 44 | 7,257 | |
| 45 |
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 |
| 46 |
Mitsubishi Electricmitsubishielectric.com
A leader in electric and electronic equipment manufacturing, focusing on Energy Systems, Industrial Automation, Information Systems, Electronic Devices, and Home Appliances |
7,024 |
| 47 |
KEYENCE CORPORATIONkeyence.com
Development and manufacturing of factory automation equipment including sensors, measuring instruments, vision systems, laser markers, and digital microscopes worldwide. |
6,685 |
| 48 |
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 |
| 49 |
NTTglobal.ntt
Global technology company offering mobile, infrastructure, consulting, and cloud services with deep industry expertise, serving Fortune Global 100 companies and millions of clients worldwide |
6,355 |
| 50 | 6,334 | |
| 51 |
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 |
| 52 |
Sumitomo Corporationsumitomocorp.com
Global network engaged in diverse business activities with focus on integrated strength, creating value for stakeholders and society for sustainable growth |
6,244 |
| 53 |
Sony Electronicssonyjobs.com
Global company fostering innovation and creativity by empowering diverse, passionate teams to deliver exceptional, meaningful experiences to customers worldwide. |
5,852 |
| 54 |
Hitachi Construction Machineryhitachicm.com
Global construction machinery company prioritizing environmentally friendly activities, providing solutions for construction and mining needs, promoting sustainability and social development |
5,800 |
| 55 |
Kintetsu World Expresskwe.com
Global provider of air, ocean freight, customs brokerage, surface logistics, and distribution services ensuring competitive logistics solutions worldwide. |
5,784 |
| 56 |
Mitsui & Co., Ltd.mitsui.com
Global trading and investment company operating across diverse industries, focusing on resources, infrastructure, low-carbon energy, and healthcare solutions. |
5,765 |
| 57 |
Japan International Cooperation Agency (JICA)jica.go.jp
An independent institution supporting socioeconomic development of developing regions to promote international cooperation and global economy |
5,365 |
| 58 |
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 |
| 59 | 5,213 | |
| 60 |
Sony Mobile Communicationssony.com
Design and engineering of Xperia smartphones integrating advanced Sony technology, premium services, and entertainment for enhanced everyday experiences. |
4,848 |
| 61 | 4,786 | |
| 62 |
NSG Groupcareers.nsg.com
Manufactures glass and glazing products for architectural, automotive, and technical sectors with global operations and diverse product applications. |
4,624 |
| 63 |
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 |
| 64 |
ASICScorp.asics.com
A global company founded on the philosophy of promoting physical and mental wellbeing through sports footwear, apparel, and equipment |
4,382 |
| 65 |
KYOCERA Globalglobal.kyocera.com
Development of fine ceramics, semiconductor components, electronic devices, AI, IoT systems, and document solutions addressing critical global issues. |
4,375 |
| 66 |
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 |
| 67 | 4,235 | |
| 68 |
Seiko Epson Corporationglobal.epson.com
Global technology leader focused on efficient, precise innovation in printing, manufacturing, and visual solutions Committed to sustainability and addressing societal issues |
4,220 |
| 69 |
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 |
| 70 | 4,027 | |
| 71 |
Kyoto Universitykyoto-u.ac.jp
Established in 1897, providing high-quality education and research with a focus on open-minded dialogue and academic freedom |
4,004 |
| 72 |
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 |
| 73 |
Chiyoda Corporationchiyodacorp.com
Global engineering company focused on energy and environment, aiming to be top-tier provider through innovative solutions and sustainable growth strategies |
3,984 |
| 74 |
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 |
| 75 |
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 |
3,856 |
| 76 | 3,716 | |
| 77 |
Japan Airlinesjal.com
Operates a large fleet offering extensive domestic and international flights, emphasizing safety, service quality, and traditional Japanese hospitality. |
3,685 |
| 78 |
MS&AD Insurance Groupms-ad-hd.com
A global insurance organization managing group companies for safety, peace of mind, and sustainable development through world-leading insurance and financial services |
3,675 |
| 79 |
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 |
| 80 |
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 |
| 81 |
Toray Industries, Inc.toray.com
Development of fibers, textiles, performance chemicals, carbon fiber composites, environment engineering, pharmaceuticals, and medical products using advanced chemical technologies worldwide. |
3,225 |
| 82 |
Rakuten Symphonyrakuten.com
Global B2B services provider in mobile telco industry, offering cloud-based international mobile services and innovative telco platform, with operations in 30 countries |
3,102 |
| 83 |
Waseda Universitywaseda.jp
A prestigious university in central Tokyo, known for its notable alumni who excel in various fields and contribute to society |
3,081 |
| 84 |
Fast Retailingfastretailing.com
Global apparel retail company operating multiple brands, designing and selling innovative clothing with a focus on quality, simplicity, and longevity. |
3,062 |
| 85 |
Toyo Engineering Corporationtoyo-eng.com
Engineering globally to construct plants, focusing on quality, safety, environment, and cost Creating sustainable solutions for energy infrastructure with innovation |
3,002 |
| 86 |
ORIX Grouporix.co.jp
Global corporate group offering financing, investment, insurance, banking, asset management, real estate, and various other services worldwide to drive sustainable development |
2,996 |
| 87 |
Accenture Japanaccenture.com
A global professional services company implementing digital technologies to optimize operations, increase revenue, improve citizen services, and drive visible results for clients worldwide |
2,907 |
| 88 |
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 |
| 89 |
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 |
| 90 |
All Nippon Airwaysana.co.jp
Premium Japanese airline offering 5-star service, world-class comfort, and safety, recognized globally for quality and customer trust. |
2,719 |
| 91 |
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 |
| 92 |
ABeam Consultingabeam.com
Global consulting firm specializing in business strategy, digital technologies, operational services, and helping clients achieve competitive digital transformation and new business models. |
2,712 |
| 93 |
Enagic Globalenagic.com
A leading manufacturer of alkaline ionizers and water filtration machines, transforming tap water into healthy drinking water through direct sales |
2,705 |
| 94 |
Kubota Corporationkubota.com
Manufacture and sale of farm equipment, construction machinery, water treatment systems, pipes, pumps, and environmental engineering services globally. |
2,639 |
| 95 |
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 |
| 96 |
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 |
| 97 | 2,582 | |
| 98 |
China Resources (Holdings) Cocrc.com.hk
A group of companies with diverse businesses in Hong Kong and mainland China, originally founded in 1938 as Liow & Company |
2,575 |
| 99 |
KDDI Corporationbiz.kddi.com
Global telecommunications provider offering data centers, networks, mobile services, and submarine cable infrastructure across multiple international locations. |
2,510 |
| 100 |
Panasonic Connectconnect.panasonic.com
A company dedicated to providing innovative B2B solutions, driving sustainability and societal advancement by connecting with customers to solve challenges and create value |
2,476 |
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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 9, 2026.
More company lists in Japan
- IT Services and IT Consulting companies in Japan 92
- Higher Education companies in Japan 57
- Appliances, Electrical, and Electronics Manufacturing companies in Japan 40
- SaaS companies in Japan 34
- Motor Vehicle Manufacturing companies in Japan 33
- Software Development companies in Japan 33
- Chemical Manufacturing companies in Japan 31
- Business Consulting and Services companies in Japan 28
- Technology, Information and Internet companies in Japan 25