Company & Principal · 会社概要・代表

Small firm. Deep water.

Pier Head Japan is small on purpose: one accountable operator, a consultant's discipline, an AI operation behind it. Here's exactly who you're dealing with, and how work from overseas gets handled.

THE HARBORMASTER
& THE HOUSE
The Principal · 代表
Tsubasa Arai, principal of Pier Head Japan

Tsubasa Arai荒井 飛翔, bilingual consultant

One operator, a fleet's worth of output. Tsubasa pairs a management-consulting background with an AI operation that compresses the busywork. The result: a foreign company gets someone who can size a market, reach a Japanese executive, write the deck, and localize the site, at the speed of a team.

Fluent in written English and Japanese; outreach and calls run in native Japanese. Overseas work isn't new territory. A bilingual freelance practice, begun at university, served clients across the US and Europe in translation and business development — including one engagement retained for 24 consecutive weeks.

EN⇄JA
native-grade written
Native JA
outreach & calls
24 weeks
longest continuous retainer
AI-first
consulting ops
Company information · 法人情報
Name
Pier Head Japan
Legal entity
Sole proprietorship of Tsubasa Arai (Tokyo, Japan)Incorporation in progress; entity details announced on formation.
Principal
Tsubasa Arai (荒井 飛翔)
Based
Tokyo, Japan
Business
Japan market-entry support, partner sourcing, research & due diligence, bilingual execution
Languages
English · Japanese
Billing entity
Tsubasa Arai (sole proprietor)Contracts and invoices are issued by the principal until the incorporated entity is formed; any transfer to the new entity will be documented explicitly.
How the work is executed · 実行体制
  • One accountable operator. The principal owns every engagement end to end; you're never handed off to an anonymous team.
  • AI as leverage, not the product. Automation and parallel research compress the hours; judgment and reporting stay human.
  • External specialists only when named. If one is brought in, you're told, and the principal reviews every deliverable before it reaches you.
  • Source-backed review. Nothing goes out as fact without the evidence attached.
Mission · ミッション

We aim to be the pilot a foreign business can trust for the crossing, so no company has to enter Japan alone.

Built on a simple conviction: deep experience in a narrow niche, a strong point of view, and playbooks built from zero — put to work for companies that would otherwise face Japan without them.

Trust · 海外取引

Working with overseas clients

The questions a foreign company asks before sending work to Japan, answered up front.

NDA

NDA available

We'll sign yours, or provide one, before anything sensitive is shared.

EN

English communication

All correspondence and reporting in clear written English by default.

JST

Japan-time response

Replies within one Japan business day, with time-zone handoffs flagged clearly.

¥ $ £

Invoice & currency

Invoiced in your preferred currency where possible; terms agreed before work starts.

CONF

Confidential handling

Research data and client materials are kept confidential, full stop.

CITE

Source-backed reporting

Findings carry their sources, so you can verify them instead of taking them on faith.

MAIL

Email-first outreach

Outreach leads with email and web form, in Japanese — unsolicited phone calls are not our default channel. Respectful, and it works.

ASYNC

Text-first working

Async and written by default; calls only when they actually move things forward.

Come aboard

Deal with one name.

No account layers, no hand-offs. Send a brief and you'll be talking to the person who does the work.