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Key contacts
Senior Managing Partner: Katsuro Tanaka
Quick facts
# Practitioners (worldwide)

675 lawyers and 101 patent/trademark attorneys (As of September 1, 2025)

Languages

Japanese, English, Chinese, French, Korean, Hindi, Vietnamese, Myanmar, Thai, Indonesian

Key practice areas
Banking and finance
Banking
Project finance
Capital markets
Capital markets : Debt
Capital markets : Equity
Capital markets : Structured finance and securitisation
Financial and corporate
Corporate and M&A
Private equity
M&A
Energy and infrastructure
Project development
Firm overview

TMI Associates is one of Japan’s largest law firms, with more than 770 attorneys, patent attorneys, foreign lawyers and other professionals. TMI is also one of Japan’s most internationally-minded law firms and aspires to earn the trust of its global client base through deep expertise, hard work, and dedication.

TMI has broad transactional and dispute resolution capabilities, a distinctive regulatory focus and a renowned IP practice. The firm’s primary areas of practice include corporate and M&A, litigation and arbitration, banking and finance, antitrust and competition law, risk management, and labour and employment law.

The firm takes pride in its deep understanding of its clients’ industries, including retail and other brand businesses; media, entertainment and sports; life sciences; information technology and communications; banking, securities, insurance and trusts; and human resources and education. Drawing upon its strength in the IP area, TMI has become a market leader in representing companies in cutting-edge areas including data privacy, FinTech, health IT and renewable energy.

Key practice areas
  • Asset finance
  • Banking
  • Capital markets: Debt
  • Capital markets: Derivatives
  • Capital markets: Equity
  • Capital markets: High yield
  • CLO/CDO
  • Competition
  • Financial restructuring
  • Financial services regulatory
  • Hedge funds
  • Investment funds
  • M&A
  • PPP/PFI
  • Private equity
  • Private equity funds
  • Project development
  • Project finance
  • Real estate finance
  • Real estate funds
  • Restructuring and insolvency
  • Securitisation
  • Structured finance/securitisation
Sector expertise
  • Agriculture
  • Automotive
  • Banking
  • Construction and materials
  • Consumer goods and services
  • Energy
  • Financial services
  • Fisheries and aquaculture
  • Food and beverage
  • Gaming
  • Government and public policy
  • Healthcare
  • Industrials
  • Insurance
  • Investment management
  • Media
  • Natural resources
  • Pharm and life sciences
  • Real estate
  • Shipping
  • Social infrastructure
  • Tech and telecoms
  • Transport
  • Utilities
Other offices

Other offices found here.

Address:
23rd Floor, Roppongi Hills Mori Tower, 6-10-1 Roppongi, Minato-ku
Tokyo, 106-6123
Tel:+81364385511 Email:Contact Us Web Address:https://www.tmi.gr.jp/
Rankings published in 2026
Banking
Tier 3
14 firms ranked
View full list

Tier 1

Anderson Mori & Tomotsune
13 practice areas
View full profile
Mori Hamada
13 practice areas
View full profile
Nagashima Ohno & Tsunematsu
13 practice areas
View full profile
Nishimura & Asahi
13 practice areas
View profile

Tier 2

Atsumi & Sakai
11 practice areas
View full profile
Baker McKenzie
17 practice areas
View profile
Clifford Chance
20 practice areas
View profile
Linklaters
19 practice areas
View profile
White & Case
16 practice areas
View profile

Tier 3

City-Yuwa Partners
12 practice areas
View full profile
Morrison & Foerster
20 practice areas
View profile
TMI Associates
13 practice areas
View full profile

Notable

Kaynex Law Offices
7 practice areas
View profile
Tsubame Law Offices
4 practice areas
View profile
Capital markets : Debt
Tier 2
10 firms ranked
View full list

Tier 1

Anderson Mori & Tomotsune
13 practice areas
View full profile
Mori Hamada
13 practice areas
View full profile
Nagashima Ohno & Tsunematsu
13 practice areas
View full profile
Nishimura & Asahi
13 practice areas
View profile

Tier 2

Baker McKenzie
17 practice areas
View profile
Linklaters
19 practice areas
View profile
TMI Associates
13 practice areas
View full profile

Tier 3

Atsumi & Sakai
11 practice areas
View full profile
Morrison & Foerster
20 practice areas
View profile

Tier 4

City-Yuwa Partners
12 practice areas
View full profile
Capital markets : Equity
Notable
10 firms ranked
View full list

Tier 1

Anderson Mori & Tomotsune
13 practice areas
View full profile
Mori Hamada
13 practice areas
View full profile
Nagashima Ohno & Tsunematsu
13 practice areas
View full profile
Nishimura & Asahi
13 practice areas
View profile

Tier 2

Baker McKenzie
17 practice areas
View profile
Linklaters
19 practice areas
View profile
Morrison & Foerster
20 practice areas
View profile

Tier 3

Atsumi & Sakai
11 practice areas
View full profile
White & Case
16 practice areas
View profile

Notable

TMI Associates
13 practice areas
View full profile
Capital markets : Structured finance and securitisation
Notable
11 firms ranked
View full list

Tier 1

Anderson Mori & Tomotsune
13 practice areas
View full profile
Mori Hamada
13 practice areas
View full profile
Nagashima Ohno & Tsunematsu
13 practice areas
View full profile
Nishimura & Asahi
13 practice areas
View profile

Tier 2

Atsumi & Sakai
11 practice areas
View full profile
Baker McKenzie
17 practice areas
View profile
Linklaters
19 practice areas
View profile

Tier 3

City-Yuwa Partners
12 practice areas
View full profile
Morrison & Foerster
20 practice areas
View profile
White & Case
16 practice areas
View profile

Notable

TMI Associates
13 practice areas
View full profile
M&A
Tier 2
22 firms ranked
View full list

Tier 1

Anderson Mori & Tomotsune
13 practice areas
View full profile
Mori Hamada
13 practice areas
View full profile
Nagashima Ohno & Tsunematsu
13 practice areas
View full profile
Nishimura & Asahi
13 practice areas
View profile

Tier 2

Baker McKenzie
17 practice areas
View profile
Morrison & Foerster
20 practice areas
View profile
Oh-Ebashi LPC & Partners
8 practice areas
View full profile
TMI Associates
13 practice areas
View full profile

Tier 3

A&O Shearman
18 practice areas
View profile
Atsumi & Sakai
11 practice areas
View full profile
Clifford Chance
20 practice areas
View profile
Freshfields
18 practice areas
View profile
Linklaters
19 practice areas
View profile
Miura & Partners
4 practice areas
View full profile
Paul Hastings
14 practice areas
View profile
Skadden Arps Slate Meagher & Flom
13 practice areas
View profile
White & Case
16 practice areas
View profile

Tier 4

City-Yuwa Partners
12 practice areas
View full profile
Hibiya Nakata
3 practice areas
View profile
Jones Day
7 practice areas
View profile
O'Melveny & Myers
6 practice areas
View profile

Notable

Tokyo International Law Office
2 practice areas
View profile
Private equity
Tier 2
11 firms ranked
View full list

Tier 1

Anderson Mori & Tomotsune
13 practice areas
View full profile
Mori Hamada
13 practice areas
View full profile
Nagashima Ohno & Tsunematsu
13 practice areas
View full profile
Nishimura & Asahi
13 practice areas
View profile

Tier 2

Baker McKenzie
17 practice areas
View profile
Morrison & Foerster
20 practice areas
View profile
TMI Associates
13 practice areas
View full profile

Tier 3

Miura & Partners
4 practice areas
View full profile
Oh-Ebashi LPC & Partners
8 practice areas
View full profile

Notable

Atsumi & Sakai
11 practice areas
View full profile
City-Yuwa Partners
12 practice areas
View full profile
Project development
Tier 2
12 firms ranked
View full list

Tier 1

Anderson Mori & Tomotsune
13 practice areas
View full profile
Mori Hamada
13 practice areas
View full profile
Nagashima Ohno & Tsunematsu
13 practice areas
View full profile
Nishimura & Asahi
13 practice areas
View profile

Tier 2

Atsumi & Sakai
11 practice areas
View full profile
Baker McKenzie
17 practice areas
View profile
TMI Associates
13 practice areas
View full profile

Tier 3

City-Yuwa Partners
12 practice areas
View full profile
Clifford Chance
20 practice areas
View profile
Oh-Ebashi LPC & Partners
8 practice areas
View full profile

Notable

Kaynex Law Offices
7 practice areas
View profile
Yokogi & Masui Partners
4 practice areas
View profile
Project finance
Tier 2
11 firms ranked
View full list

Tier 1

Anderson Mori & Tomotsune
13 practice areas
View full profile
Mori Hamada
13 practice areas
View full profile
Nagashima Ohno & Tsunematsu
13 practice areas
View full profile
Nishimura & Asahi
13 practice areas
View profile

Tier 2

Atsumi & Sakai
11 practice areas
View full profile
Baker McKenzie
17 practice areas
View profile
TMI Associates
13 practice areas
View full profile

Tier 3

City-Yuwa Partners
12 practice areas
View full profile
Oh-Ebashi LPC & Partners
8 practice areas
View full profile

Notable

Tsubame Law Offices
4 practice areas
View profile
Yokogi & Masui Partners
4 practice areas
View profile
Linked Reviews
Financial and corporate

TMI Associates is one of the fastest-growing law firms in Japan. The firm was established in 1990 and now has 556 attorneys with six domestic offices in Tokyo, Kobe, Nagoya, Osaka, Kyoto and Fukuoka and 10 overseas offices in Bangkok, Beijing, Hanoi, Ho Chi Minh City, London, Phnom Penh, Shanghai, Silicon Valley, Singapore and Yangon. It also has overseas practice groups and joint venture arrangements. 

Highlights 

During the research cycle, the firm was busy handling transactions in banking, M&A, debt capital markets and project areas. 

The firm’s banking and finance team was active in assisting clients in financial matters including corporate finance, structured finance, project finance, securitisation, liquidation, real estate finance, REITs, acquisition finance, derivative transactions, banking, securities, insurance and trusts. Apart from actively advising sponsors and investors in project finance, the firm was also actively involved in the development of energy projects. 

In the capital market, the firm was preoccupied with transactions related to IPOs, share capital increases, debenture issues and sovereign bond issues, and often advised underwriters and issuers. 

In the M&A market, the firm was active in numerous squeeze-out transactions representing both private equity funds and targets. The firm also worked for numerous public companies across all industries and market capitalisations in defending against a wide array of shareholder activism campaigns. 

Key clients 

Key clients include Aozora Bank, Crédit Agricole Securities Asia, Daiwa Securities, Sumitomo Mitsui Banking Corporation, Sumitomo Mitsui Trust Bank, Mitsubishi UFJ Trust and Banking Corporation, Mizuho Trust & Banking, Nomura Securities, and Nidec Corporation. 

Testimonials 

"Familiar with local laws and good communication skills." (Project development client) 

Norimitsu Shirai  

"Extensive knowledge of Indian law and negotiation skills." 

24 results24 results
1
of
2
Deal Highlights
24 results24 results
Deal Name Deal Date Firm Name Jurisdiction Deal Type Lawyer Names Client Names Client Role
Toppan Forms Co Ltd - M&A
2022-02-24
TMI Associates
Japan
M&A
Oh Miyashita
Toppan Forms Co Ltd
Target
Universal Entertainment Corporation - Bond issue
2021-04-08
TMI Associates
Japan
Bond issue
Hitoshi Sumiya
Universal Entertainment Corporation
Issuer
Iwasaki Electric Co Ltd - M&A
2023-02-06
TMI Associates
Japan
M&A
Iwasaki Electric Co Ltd
Target
WD Holdings Co. Ltd. - M&A
2023-08-07
TMI Associates
Japan
M&A
WD Holdings Co. Ltd.
Target
2
of
2
ESG
The Japanese law firm’s co-founder Tomohiro Tohyama explains what makes Brussels a strategic choice and how that fits in with the firm’s “50/50” growth vision
M&A
Businesses should prepare for activist campaigns driven by ESG and Japan’s changing regulatory landscape
IFLR1000
Firm aims to strengthen corporate law capabilities with new hires
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