# List of media companies and publishers in Japan

Tamtam tracks 25 media companies and publishers headquartered in Japan. This list ranks all of them by number of employees on LinkedIn, led by Sony, LY Corporation and Recruit Group. Their median headcount is 438. Half of them were founded in 1998 or later. The most common headquarters are Tokyo (6).

This selection of Japanese media companies and publishers includes large, established groups alongside younger technology-focused firms. Sony creates technology and entertainment, while Recruit Group connects individuals and businesses through HR and promotional media. Nikkei is known for business news, and CyberAgent focuses on internet advertising and games. NHK is Japan's public broadcaster, and DMM.com Group offers diverse services from video streaming to solar energy.

The companies are predominantly headquartered in Tokyo and its wards, such as Shibuya-ku and Chiyoda-ku. The list shows a mix of traditional publishing and broadcasting with modern internet services, gaming, and IT consulting, reflecting a broad media landscape in Japan. Several companies, like CyberAgent and DMM.com Group, were founded in 1998, indicating a period of growth for internet-based businesses.

🇯🇵 Japan · 25 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Sony](https://www.tamtam.ai/c/sony) (sony.com)<br>Creates groundbreaking technology, entertainment, and services across various industries, aiming to evoke emotion and push boundaries for people worldwide. | Entertainment Providers | 🇯🇵 Tokyo | 24,935 | 1946 |
| 2 | [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 |
| 3 | [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 |  |
| 4 | [CyberAgent, Inc.](https://www.tamtam.ai/c/cyberagent-inc) (cyberagent.co.jp)<br>A pioneering internet company founded in 1998, focusing on media, internet advertising, games, and investment development to become the leading company of the 21st century | Technology, Information and Internet | 🇯🇵 Shibuya | 1,839 | 1998 |
| 5 | [Nikkei](https://www.tamtam.ai/c/nikkei) (nikkei.co.jp)<br>Renowned for quality journalism, providing trusted business news and information Acquired the Financial Times in 2015, reaching a combined readership of 4 million globally | Newspaper Publishing | 🇯🇵 Tokyo | 1,692 | 1876 |
| 6 | [NHK, Japan Broadcasting Corporation](https://www.tamtam.ai/c/nhk-japan-broadcasting-corporation) (nhk.or.jp)<br>This company is Japan's public broadcaster, providing radio and television services independently funded by receiving fees from households with television sets | Broadcast Media Production and Distribution | 🇯🇵 Shibuya-ku; | 1,684 | 1925 |
| 7 | [DMM.com Group](https://www.tamtam.ai/c/dmm-com-group) (dmm.com)<br>A diverse Group founded in 1998, providing video streaming, FX, Eikaiwa, Games, solar energy, 3D printers, and more to 29 million members Also involved in aquarium and football club business development | Technology, Information and Internet | 🇯🇵 Roppongi | 874 | 1998 |
| 8 | [The Asahi Shimbun Company](https://www.tamtam.ai/c/the-asahi-shimbun-company) (asahi.com)<br>A Japanese media company fulfilling its duty as a news and media organization while aiming to create and provide new value | Newspaper Publishing | 🇯🇵 Tokyo | 622 | 1879 |
| 9 | [Nikkei Business Publications](https://www.tamtam.ai/c/nikkei-business-publications) (nikkeibp.co.jp)<br>A company based in Tokyo, Japan, focused on providing services or products related to the address mentioned in Minato-ku, Toranomon | Book and Periodical Publishing | 🇯🇵 Minato-ku | 588 |  |
| 10 | [SQUARE ENIX CO., LTD.(Japan) 株式会社スクウェア・エニックス](https://www.tamtam.ai/c/square-enix-co-ltd-japan) (jp.square-enix.com)<br>A leading entertainment company creating innovative content such as "Dragon Quest," "Final Fantasy," and "Space Invaders" for global distribution | Computer Games | 🇯🇵 | 573 | 1975 |
| 11 | [KADOKAWA Corporation](https://www.tamtam.ai/c/kadokawa-corporation) (group.kadokawa.co.jp)<br>A comprehensive entertainment entity involved in publishing, video, games, web services, education, and IP creation for global expansion through digital transformation | Entertainment Providers | 🇯🇵 Fujimi | 538 | 1954 |
| 12 | [SmartNews](https://www.tamtam.ai/c/smartnews) (careers.smartnews.com)<br>A global leader in news discovery, using machine-learning technology and editorial expertise to deliver accurate, timely information from 3,000+ publishing partners worldwide | Technology, Information and Media | 🇯🇵 Tokyo | 498 | 2012 |
| 13 | [brazil](https://www.tamtam.ai/c/brazil) (razil.jp)<br>The company provides internet services, mainly search engine related They have a powerful engine that enhances the function of Mysql | IT Services and IT Consulting | 🇯🇵 Shibuya-ku | 438 | 2003 |
| 14 | [Nikkei Asia](https://www.tamtam.ai/c/nikkei-asia) (asia.nikkei.com)<br>Provider of news and insights on influential companies in Asia, with a focus on politics, economy, markets, and trends from a uniquely Asian perspective | Newspaper Publishing | 🇯🇵 Chiyoda-ku | 436 |  |
| 15 | [GLOBIS Corporation](https://www.tamtam.ai/c/globis-corporation) (globis.com)<br>Empowering leaders to drive societal innovation through MBA programs, corporate training, venture capital, online learning, and publications Helping professionals upskill and find purpose | Education | 🇯🇵 Chiyoda-ku | 401 | 1992 |
| 16 | [TV Asahi](https://www.tamtam.ai/c/tv-asahi) (tv-asahi.co.jp)<br>A leading Japanese content company with popular TV programs, global partnerships, digital distribution, internet services, and special events attracting millions of visitors | Broadcast Media Production and Distribution | 🇯🇵 Minato-ku | 355 | 1957 |
| 17 | [POPS](https://www.tamtam.ai/c/pops) (popsww.com)<br>Southeast Asian digital entertainment company providing music, kids' edutainment, and general media via app stores, top digital platforms, concerts, and live events. | Entertainment Providers | 🇯🇵 Tokyo | 327 | 2008 |
| 18 | [Mynavi Corporation](https://www.tamtam.ai/c/mynavi-corporation) (mynavi.jp)<br>Provides job placement, recruitment websites, and lifestyle media services supporting diverse individual potentials and future career envisioning. | Information Services | 🇯🇵 Chiyoda-ku | 326 | 1973 |
| 19 | [NEO CAREER Co.,LTD.](https://www.tamtam.ai/c/neo-career-co-ltd) (neo-career.co.jp)<br>The company provides services to support client growth in a changing labor market, focusing on innovation, technology, and individual futures | Staffing and Recruiting | 🇯🇵 Shinjuku-ku | 313 | 2000 |
| 20 | [Tokyo Broadcasting System Television, Inc.](https://www.tamtam.ai/c/tokyo-broadcasting-system-television-inc) (tbs.co.jp)<br>A leading commercial TV network in Japan, producing popular dramas, variety shows, news, and live sports broadcast worldwide with global acclaim | Broadcast Media Production and Distribution | 🇯🇵 Tokyo | 309 | 1951 |
| 21 | [Dwango corp](https://www.tamtam.ai/c/dwango-corp) (dwango.co.jp)<br>A platform for sharing videos and live streaming, offering a wide range of content including music, anime, gaming, and entertainment | Technology, Information and Internet | 🇯🇵 Chuo | 223 | 1997 |
| 22 | [mybest, Inc.](https://www.tamtam.ai/c/mybest-inc) (my-best.com)<br>The company runs a media website focused on simplifying and improving the process of selecting products online by showcasing only top-quality items | IT Services and IT Consulting | 🇯🇵 Chuo | 219 | 2016 |
| 23 | [Bengo4.com,Inc.](https://www.tamtam.ai/c/bengo4-com-inc) (bengo4.com)<br>The company provides a variety of legal services through portals like law, tax, and business lawyer sites, as well as a digital contract management platform | Technology, Information and Internet | 🇯🇵 Minato | 202 | 2005 |
| 24 | [Active Gaming Media](https://www.tamtam.ai/c/active-gaming-media) (activegamingmedia.com)<br>AGM specializes in publishing and supporting digital content for European, American, and Asian markets, with a focus on indie games, anime, and manga | Translation and Localization | 🇯🇵 Osaka | 186 | 2008 |
| 25 | [MATCHA](https://www.tamtam.ai/c/matcha-chuo) (company.matcha-jp.com)<br>An inbound media company showcasing the charms of Japan to the world, preserving valuable culture for future generations | IT Services and IT Consulting | 🇯🇵 Chuo | 43 | 2013 |

## 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)
- [Corporate groups and holding companies in Japan](https://www.tamtam.ai/l/holding-companies-japan) (181)
- [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)

## The same list elsewhere

- [Media companies and publishers in the world](https://www.tamtam.ai/l/media-companies-in-the-world) (4,316)
- [Media companies and publishers in Asia](https://www.tamtam.ai/l/media-companies-in-asia) (539)

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