Est. 2017 · Tokyo A Monstarlab Inc. company (TSE: 5255)

One engine.
Two companies.

We built the AI for our own recruiting agency in 2018. Eight years later, we run it two ways: as a self-serve platform anyone can use, or as a full-service agency we run for you. Same engine, different buyers.

Try Headhunt.AI free 100 credits · No card required Hire through AgentRPO Sample candidates in 1 week

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2017
Founded · Tokyo
8+ yrs
AI in production
4M+
Japan-based profiles
17.2×
ROI on a recent platform-only cohort
Our companies

Two ways to hire with AI in Japan.
Pick the one that fits how you work.

100 free credits · No card needed
01Software · Self-serve headhunt.ai

Headhunt.AI

The AI recruiting platform.

For agencies and in-house TA teams

Paste a JD. Get a ranked candidate list and bilingual scout mail drafts in under two minutes. 4M+ Japan-based profiles, scored on every search. Eight years in production at our own agency before we opened it up.

  • 100 free credits at signup, try it before you pay
  • From ¥7500 per credit pack, pay as you go
  • 15% off annual plans, Starter to Enterprise
Start free → ↗
02Service · We run it agentrpo.com

AgentRPO

Recruiting agency, powered by Headhunt.AI.

For companies that want hires, not operations

Veteran Japan headhunters running Headhunt.AI on your behalf. Send a JD, get a sample candidate list within a week. From first JD to signed offer, we own the cycle.

  • Contingency, pay only when we hire (35%)
  • Dedicated RPO, embedded recruiter, monthly retainer
  • Tier-1 Premium, dedicated team, weekly cadence
Operated by ESAI Agency K.K. · License 13-ユ-319155
Send us a JD ↗
About

Japan's first AI-first recruiting company.

Founded in Tokyo, 2017, on a simple thesis: a recruiter's job is judgment, and everything else should be machine-assisted. GPT-3 in production by 2022. 100% AI-driven outbound by 2024. Joined Monstarlab Inc. (TSE: 5255) in October 2023.

Today we run two companies from Tokyo: the platform (Headhunt.AI) and the agency (AgentRPO, operated by our subsidiary ESAI Agency K.K.). Same engine. Different buyers.

Founded
2017
Tokyo, Japan
In production
8+ yrs
AI-assisted recruiting
Candidate database
4M+
profiles · 90%+ Japan-based
Parent
Monstarlab
TSE: 5255
Reading from the partners

What we've learned, written down.

No ad copy, no thought leadership filler. Operator briefings, full data, full sources, full reasoning. Free, ungated, share freely. They live on our platform's content hub at headhunt.ai/insights.

Apr 2026 · Ken Charles

Trusting the AI got us 17.2× ROI.

16 weeks, ¥100,000 of credits, 16 qualified meetings worth ¥1,720,788. Zero human review.

 Apr 2026 · Ken Charles

Is your AI & sourcing stack illegal in Japan?

How APPI and the Employment Security Act govern AI sourcing, with a 7-question buyer checklist.

 Jan 2026 · Ken Charles

100k Yen Per Meeting.

The unit-economic atom of every recruiting business in Japan.
See all insights →
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Contact

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For press, partnerships, investor relations, legal, or general corporate inquiries. We reply within one business day.

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