The expert,
not the crowd.

The bench you draw on when "anyone can label this" stops being true — a vetted, NDA-bound network of domain professionals who do this work for a living.

The expert, not the crowd.

412K

Expert pool

36K+

FTE Firstsourcers

150+

Languages

119+

Countries

1 week

To onboard 1,000+ raters
The expert network

The right expert for the work

When stakes are high, crowd workers approximating expertise won't work. You would want true domain specialists in the room. People who have shipped products, won cases, published breakthroughs, and made decisions under fire. Every project is staffed against the qualifications the data requires, and re-staffed when the work changes.

Clinicians and life science researchers

Practicing MDs across specialties, RNs, allied health, biomedical researchers, and regulatory specialists.

Engineers and ML researchers

Senior software engineers, ML scientists, systems and hardware specialists, and security engineers.

Legal and policy experts

Qualified attorneys and policy specialists across US, UK, EU, APAC and emerging-market jurisdictions.

Linguists and native speakers

Native speakers in 150+ languages with linguistic training for transcription, evaluation and cultural review.
And the full depth of the bench
Mathematicians & Scientists
Finance & Accounting
Creatives & Editorial
Domain Generalists · 250,000+ calibrated crowd
Board-Certified Physicians
Practicing Surgeons
Frontier Research Scientists
Ivy League Researchers
Math Olympiad Champions
Chartered Financial Analysts
Veteran Trial Attorneys
Mathematicians & Scientists
Senior Policy Fellows
Senior Strategy Partners
Space Engineers
Top Defense Operators
Decorated Military Officers
Doctoral Linguists
Tenured Historians
Award-Winning Journalists
Bestselling Authors
Platinum Recording Artists
Professional Voice Actors
Olympic-Caliber Athletes
AI Experts

The quality of your data is the quality of your model.