What Anderson Mori & Tomotsune does

Anderson Mori & Tomotsune (AMT) is a Tokyo-headquartered full-service Japanese law firm founded in 1952, operating through a group structure that includes Anderson Mori & Tomotsune Foreign Law Joint Venture (外国法共同事業) and Hoshi Law Corporation Anderson Mori & Tomotsune (弁護士法人アンダーソン・毛利・友常法律事務所). The firm employs 501-1,000 people and maintains 15 offices across Japan (Tokyo, Osaka, Nagoya), Greater China (Beijing, Shanghai, Hong Kong), Southeast Asia (Singapore, Hanoi, Ho Chi Minh City, Bangkok, Jakarta, Kuala Lumpur/Malaysia desk), and Europe (London, Brussels, Paris), making it one of the most internationally diversified Japanese law firms.

AMT delivers legal services across corporate, M&A, capital markets, finance, real estate, intellectual property, technology/data/IT/telecom, life sciences, dispute resolution, employment, tax, restructuring, international trade, sustainability, and crisis management. Its practice is anchored on complex, high-value matters for large Japanese corporates, multinational corporations entering Japan, private equity funds, and financial institutions — notably advising on Apollo's JPY 590 billion (USD 3.7 billion) acquisition of Nippon Sheet Glass, Apollo's largest PE investment in Japan to date. The firm has actively built talent depth in crisis management, cybersecurity, and economic security through senior lateral hires such as former National Police Agency Director General Yuko Sano (effective April 2026).

AMT generates revenue through professional services fees structured per engagement — typically hourly billing for litigation and advisory, fixed fees for defined transactional matters, and transaction- or success-based fees for large M&A, PE, and cross-border deals. Pricing is not publicly disclosed. GTM is partner-led and relationship-driven, supported by thought leadership (legal insights, newsletters, seminars), awards-driven brand validation (ALB Japan Law Awards 2026, Lexology Index M&A and Governance 2026, Hukumonline 2026, FT Asia-Pacific Innovative Lawyers 2025), and direct distribution via its international office network without intermediaries. The technology stack is standard legal-practice infrastructure (HubSpot, Marketo, Google Analytics, Cloudflare, LinkedIn) rather than proprietary AI or software products.

Name

Anderson Mori & Tomotsune

Legal name

Anderson Mori & Tomotsune

Website

https://amt-law.com

Company type

Private

Founded year

1952

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Anderson Mori & Tomotsune is a Tokyo-headquartered, full-service Japanese law firm founded in 1952, serving large Japanese corporates, multinational investors, PE funds, and financial institutions across M&A, capital markets, finance, and dispute resolution via 15 offices in Asia-Pacific and Europe.

Ownership category

akta.pro rank

Product category

Legal Services

NAICS

Legal Services (5411), Offices of Lawyers (541110), Professional, Scientific, and Technical Services (541)

SIC

Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

M&A Advisory (Buy-side/Sell-side) (BPAHADAC)

akta.pro secondary industry

Cross-Border M&A Advisory (FSAEAGAH)

Keywords

• Legal advisory services
• Cross-border M&A
• Capital markets law
• Corporate governance
• Dispute resolution

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices15 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Infrastructure, Technology or R&D

Revenue model

1. Legal Services Fees: AMT generates revenue by providing legal services to corporate clients. Fee arrangements typically include hourly billing for litigation and advisory work, fixed fees for defined matters such as M&A transactions and capital markets deals, and transaction-based fees for large deals such as public M&A, private equity investments, and cross-border transactions. The firm handles high-value, complex matters for large Japanese and international corporations.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Anderson Mori & Tomotsune is a full-service Japanese law firm providing comprehensive legal advisory across corporate, M&A, capital markets, finance, dispute resolution, intellectual property, employment, tax, restructuring, international trade, sustainability, and crisis management matters. The firm serves large Japanese and international corporations through 15 offices across Japan, Greater China, Southeast Asia, and Europe, with particular strength in cross-border transactions, private equity, and regulatory matters.

Product overview

Anderson Mori & Tomotsune is a Japanese law firm offering comprehensive legal services across multiple practice areas including Corporate, M&A, Capital Markets, Finance, Real Estate, Intellectual Property, Tech/Data/IT/Telecom, Life Sciences, and others. The firm operates across 16 global office locations spanning Japan (Tokyo, Osaka, Nagoya), Greater China (Beijing, Shanghai, Hong Kong), Southeast Asia (Singapore, Hanoi, Ho Chi Minh City, Bangkok, Jakarta, Malaysia), and Europe (London, Brussels, Paris). As a legal services firm, it does not offer technology products or software-as-a-service offerings.

Differentiator

Problem solved

Functional benefit

Products and services

• Corporate and M&A Legal Advisory
• Capital Markets and Finance
• Crisis Management and Investigations
• Dispute Resolution and Litigation
• Cross-Border International Advisory
• Intellectual Property and Technology

Quantifiable outcome

• Acted on Apollo's JPY 590 billion (USD 3.7 billion) acquisition of Nippon Sheet Glass — Apollo's largest PE investment in Japan to date
• +1 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• RDS PartnershipminorStrategic or Co-development PartnerRDS Partnership in Malaysia described its business collaboration with AMT as strategic, particularly given plans to expand its international client base. The collaboration involves business referrals and cross-border advisory support between the two firms. RDS hired Kamilah Kasim from Rahmat Lim & Partners to bolster its energy, infrastructure and projects practice, with the AMT relationship supporting its international expansion strategy.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Nagashima Ohno & Tsunematsu: Another top-tier Japanese full-service law firm consistently ranked alongside AMT for M&A, capital markets, and corporate advisory. Competes head-to-head on high-value Japanese and cross-border transactions.
• TMI Associates: Major Japanese full-service law firm with strong IP, technology, and corporate practices. Competes with AMT across both domestic Japanese matters and cross-border mandates involving Japanese corporates.
• Nishimura & Asahi: Japan's largest and most internationally recognized law firm, regularly recognized alongside AMT as a top-tier Japanese law firm. Directly competes with AMT for the same enterprise, M&A, capital markets, and cross-border mandates from major Japanese corporates and global PE clients.
• Mori Hamada & Matsumoto: One of Japan's 'Big Five' full-service law firms and a direct competitor to AMT across corporate, M&A, finance, and dispute resolution practices. Competes for the same large Japanese and multinational client base.

Broad incumbents

• King & Wood Mallesons: Global law firm with Asia-Pacific roots and a Tokyo office, frequently advising on China-related inbound and outbound Japan mandates. Overlaps with AMT on cross-border M&A, particularly China-Japan and Greater China deal flow.
• Baker McKenzie: Global law firm with deep Asia-Pacific roots and long-standing Tokyo and Southeast Asia presence. Competes with AMT on cross-border M&A, particularly involving Japanese corporates expanding into ASEAN markets.
• Herbert Smith Freehills: Global law firm with an established Tokyo office and strong Asia-Pacific network. Competes with AMT for cross-border M&A and disputes work, particularly involving Australian/UK clients investing into Japan and Southeast Asia.
• Clifford Chance: Global Magic Circle law firm with a substantial Tokyo office. Competes with AMT for cross-border M&A, capital markets, and finance mandates involving Japanese clients and inbound foreign investment into Japan, though as a global full-service firm rather than a Japanese specialist.
• Latham & Watkins: US-headquartered global law firm with a leading Tokyo practice, frequently competing for Japanese M&A mandates for foreign PE sponsors (including Apollo). Overlaps directly with AMT on US-Japan cross-border deals.
• Allen & Overy (A&O Shearman): Global Magic Circle / Shearman combination with a strong Tokyo presence. Competes with AMT on large cross-border M&A, financing, and capital markets mandates touching Japan, particularly involving international PE and corporate clients.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/amt_lawfirm
• YouTubeyoutube.com/@amt-lawfirm
• LinkedInlinkedin.com/company/anderson-mori-&-tomotsune

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Anderson Mori & Tomotsune