| # | Company | Employees |
|---|---|---|
| 1 | 23,529 | |
| 2 |
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 |
| 3 |
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 |
| 4 |
Mizuhomizuhogroup.com
This company offers a unique and inclusive culture, providing opportunities for career growth and global impact in the financial industry |
15,086 |
| 5 |
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 |
| 6 |
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 |
| 7 |
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 |
| 8 |
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 |
| 9 |
Toyota Financial Services Corporationtfsc.jp
Global financial services corporation operating in over 35 countries with a focus on ethical standards, community impact, and delivering quality products |
2,436 |
| 10 |
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 |
| 11 |
Sompo Groupsompo-hd.com
An international organization providing insurance, healthcare, and digital solutions for individuals to live healthy, prosperous, and happy lives |
987 |
| 12 |
Nippon Life Insurance Company/日本生命保険相互会社nissay.co.jp
Providing life insurance services and managing assets with a focus on responsible investment and supporting ESG efforts globally. |
909 |
| 13 |
Tokio Marine & Nichido Fire Insurance Co., Ltd.tokiomarine-nichido.co.jp
An experienced insurance provider since 1879, offering safety and security to clients and communities based on customer trust |
884 |
| 14 |
Mitsui Sumitomo Insurance Company, Limitedms-ins.com
A Japan-based insurance company providing fire and marine insurance services from its location in Chiyoda-ku, Tokyo |
741 |
| 15 |
Nomura Asset Managementnomura-asset.co.uk
Global investment management firm offering diverse strategies including equities, bonds, alternatives, and fixed income across multiple international markets. |
682 |
| 16 |
MetLife Japanmetlife.co.jp
A leading provider of innovative and diverse life insurance products in Japan, focusing on empowering customers to make confident protection choices |
672 |
| 17 |
The Dai-ichi Life Insurance Company, Limiteddai-ichi-life.co.jp
The company provides life insurance and related services, prioritizing customers and aiming for market evolution and improved penetration in local and international markets. |
671 |
| 18 |
MFSmortgagefss.jp
Online home loan services "Mogecheck" and online real estate investment services "Invebase" are offered by the company |
667 |
| 19 |
野村證券株式会社nomura.co.jp
A financial securities firm registered with the Kanto Finance Bureau, and a member of various Japanese financial industry associations |
650 |
| 20 |
AXA Japanaxa-holdings.co.jp
A member of the AXA Group, focused on innovative direct non-life insurance business to become the preferred choice for customers worldwide |
613 |
| 21 |
Norinchukin Banknochubank.or.jp
National-level financial institution supporting Japan's agriculture, fisheries, and forestry industries through JA Bank, JF Marine, and JForest groups. |
505 |
| 22 |
Development Bank of Japan Inc.dbj.jp
A corporation established to provide long-term business funds through loans, guarantees, and investments, aiming to maintain financial functions and promote privatization |
485 |
| 23 |
Sumitomo Mitsui DS Asset Managementsmd-am.co.uk
A leading investment management company in Japan, offering discretionary investment services to institutional and retail investors worldwide through industry-leading research and global network |
270 |
| 24 |
Nikko Asset Management Group (now Amova Asset Management)global.amova-am.com
Large Asia-based asset manager offering active and passive fund management in equity, fixed income, and alternative strategies with a global perspective and innovative solutions |
236 |
| 25 |
ING Life Insurance, Ltd Japaning-life.co.jp
A financial services company specializing in life insurance, retirement planning, and investment management for individuals and businesses |
220 |
| 26 |
Nissay Asset Managementnam.co.jp
Manages assets for clients, aiming for superior returns through research-intensive investments, diverse products, and high-quality customer service, acting as a success partner. |
208 |
| 27 |
SuMi TRUST AMsumitrust-am.com
A leading asset management entity with over 95 years of history, offering investment services to institutional and retail clients worldwide |
103 |
| 28 |
SBI Digital Asset Holdingssbidah.com
Delivering trusted solutions and services for the digital economy globally, including capital markets solutions, financial technology, blockchain services, and venture capital investments |
103 |
| 29 |
The Toa Reinsurance Company, Limitedtoare.co.jp
A global reinsurance group established in 1940, providing professional reinsurance services for non-life and life risks worldwide with top financial strength ratings |
47 |
| 30 |
International Financial Services Hong Kongifshongkong.com
The company prioritizes integrity and long-term financial security for clients, offering a wide range of financial products, innovative technology, proactive advice, and a global network of reputable institutions |
29 |
| 31 |
Mitsubishi UFJ Kokusai Asset Managementam.mufg.jp
An investment trust company focused on fiduciary responsibilities, providing added value to clients, and aiming to be a leader in Asia and globally |
28 |
| 32 |
Astris Advisory Japanastrisadvisory.com
A leading investment firm in Tokyo offering investment advisory, corporate advisory, and financial advisory services including research, IR support, M&A, and fund placement |
28 |
| 33 |
Aizawa Asset Management Co., Ltdwww2.aizawa-am.co.jp
Specializing in alternative investments, the company manages hedge funds and private equity assets, providing asset management services to clients |
27 |
| 34 |
SOMPO JAPAN NIPPONKOA ASSET MANAGEMENT CO., LTD.sjnk-am.com
A Japanese asset management firm specializing in intrinsic value investments and socially responsible strategies, focused on delivering high-quality risk solutions to clients |
26 |
| 35 |
ケネディクス株式会社kenedix.com
The company engages in asset management, real estate related businesses, and real estate investment activities |
26 |
| 36 |
Rogers Investment Advisors KKrogersia.com
Asia-focused asset management group with offices in Hong Kong and Tokyo, offering investment advisory services and creating funds with superior portfolio performance |
24 |
| 37 |
Capital Services Groupcapserv.com
Independent asset management specialist with a track record of over $30 billion in loan and real estate assets managed across Asia, specializing in servicing and asset management |
18 |
| 38 |
Japan Alternative Investment Co., Ltd.j-alternative.co.jp
A securities/investment management firm specializing in alternative investments, providing high quality products and services since 2001 |
14 |
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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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