FirstbrainTax & Advisory Group
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Company Profile

Core information for Firstbrain Group. Detailed content can be expanded during the next content phase.

Group NameFirstbrain Group
Main OrganizationsFirstbrain Inc. / Hayase Tax Accountant Office / First Stakes Inc. / Overseas-workers Staffing Center
AddressMercury Square 4F, 4-33-2 Yotsuya, Shinjuku-ku, Tokyo
RepresentativeToshihiro Hayase
BusinessCorporate consulting, tax accounting, inheritance and business succession, real estate consulting, and overseas workforce support
Toshihiro Hayase

Representative Message

We aim to be a professional group that stays close to each client's decisions.

Business and asset-related issues are rarely solved by tax work alone. Company numbers, the owner's personal assets, inheritance, succession, real estate, and workforce matters are all connected, and one decision can influence the future in significant ways.

Building on accurate tax and accounting work, we carefully organize each client's circumstances and present practical options that can be translated into action.

Firstbrain Group connects expertise across multiple fields and supports clients as they take the next step with confidence. We remain committed to being a trusted professional partner over the long term.

RepresentativeToshihiro Hayase

Access

Mercury Square 4F, 4-33-2 Yotsuya, Shinjuku-ku, Tokyo

6 minutes walk from Shinjuku-gyoemmae Station, Tokyo Metro Marunouchi Line