LAWYER PROFILE
Tomoki Debari

Tomoki Debari

Asia-Pacific 2026

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Ranked in 1 practice area

About

Provided by Anderson Mori & Tomotsune

Asia-Pacific

Practice Areas

Tomoki Debari is recognized as a leading insurance lawyer in Japan with extensive experience in regulatory, transactional and contentious matters. Since joining the firm in 2001, he has advised numerous Japanese and international insurers, reinsurers, asset managers and financial institutions on licensing and market entry, M&A and portfolio transfers, demutualization, reinsurance, asset management, FSA inspections, internal investigations and dispute resolution, amongst other matters. He combines deep and broad technical knowledge with practical experience and insights accumulated over more than 20 years of legal practice.

Practice Areas:

Insurance & Reinsurance (regulatory, transactional and contentious); Financial Regulation; M&A (both cross border and domestic) involving insurers; Asset Management; Real Estate and Structured Finance; Dispute Resolution; Environmental law and environmental liability insurance

Representative Matters:

•Advised insurance companies on formation and licensing of branches, subsidiaries and insurance joint ventures in Japan.

•Advised insurance companies on share acquisitions, portfolio transfers and demutualization with cross border elements.

•Developed environmental impairment and remediation insurance products and led environmental due diligence for major real estate and M&A transactions.

•Represented clients in complex reinsurance disputes and managed responses to FSA inspections.

Career

Admitted in Japan (2001), Vice-Chair of the Inter-Pacific Bar Association (IPBA) Insurance Committee (2015 - 2019)

Professional Memberships

Dai-ni Tokyo Bar Association (Japan), 2001

Personal

University of Tokyo (LLB, 1998); Tokyo University Graduate School (LLM, 2000); Christ Church College, University of Oxford (Magister Juris, 2006)

Chambers Review

Provided by Chambers

Chambers Asia & Pacific

Insurance - Japan

Band 1
Band 1

Individual Editorial
Tomoki Debari heads the insurance team and receives plaudits from market observers for his sophisticated transactional practice assisting major insurers with outbound strategic investments. He is also highly regarded for his deep regulatory expertise.

Strengths

Provided by Chambers

  • He understands the needs of his clients and provides the best legal services. For example, he immediately assembled a team of multiple lawyers for complex multijurisdictional cases.

    InsuranceChambers Asia & Pacific
  • Tomoki Debari is a leading lawyer in the field of insurance and provides a high-quality service.

    InsuranceChambers Asia & Pacific

Ranked Individuals at Anderson Mori & Tomotsune (59)

Asia-Pacific Region

Japan

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