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Clair Law Firm

Tokyo boutique corporate law firm that supports venture companies from formation to IPO.

🇯🇵 2F Marunouchi Nijubashi Building, 3-2-2 Marunouchi, Chiyoda-ku, Tokyo 100-0005 · Founded 1993

EstablishedLegal servicesCorporate lawVenture and startup lawM&AIntellectual property

Clair Law Firm (弁護士法人クレア法律事務所) is a boutique corporate law firm in Marunouchi, Tokyo. It describes itself as a firm that has long supported the creation and growth of venture companies. Its work covers company formation, contracts, intellectual property, corporate governance, IPO preparation, M&A and business restructuring. The firm started in 1993 as a solo law office, became a legal professional corporation in 2002 and took its current name in 2008.

Services

Service

Corporate legal advisory and contract review

Ongoing legal counsel for companies, plus drafting, review and translation of contracts such as NDAs, licences and sales agency agreements.

Who it's for: Venture companies and other businesses

  • Advisory retainer contracts
  • Contract drafting, review and translation
  • Employment and corporate law consultation
Retainer from ¥50,000/month; review from ¥60,000
Service

Company formation, trademarks and Privacy Mark support

Support for setting up companies, registering trademarks, handling stock option procedures and obtaining the Privacy Mark certification.

Who it's for: Founders and growing companies

  • Company establishment procedures
  • Trademark registration support
  • Privacy Mark implementation support
Formation from ¥200,000; trademark from ¥30,000
Service

M&A, due diligence and restructuring

Legal work for M&A and reorganisations, legal due diligence for IPOs and M&A, and business rehabilitation and insolvency procedures.

Who it's for: Companies preparing an IPO, a deal or a restructuring

  • Legal due diligence for IPO and M&A
  • M&A and organisational restructuring
  • Business rehabilitation, insolvency and debt collection
Legal due diligence ¥1,000,000-5,000,000

Customers

Companies of many kinds, with a large share of venture companies. The firm also works with businesses that need contract review or M&A support and with companies in financial difficulty or restructuring. Its lawyers also serve as outside directors and corporate auditors.

Traction

Updated Oct 2026
600+companies served as legal counsel (cumulative)
1993year the practice opened

Team