Access Europe's Most Qualified
AI Evaluation Experts.
ExpertSet gives AI labs and companies structured access to vetted European students, professionals, and domain specialists — not a generic crowd.
Why ExpertSet vs. Generic Platforms
Generic crowd platforms give you volume. ExpertSet gives you quality.
Pre-vetted experts only
Every contributor is reviewed by our team. You see profiles, not anonymous gig workers.
European jurisdiction
All experts based in Europe — for GDPR compliance, time zone alignment, and cultural context.
Fast time-to-contribution
Post a project and start receiving qualified applicants within days, not weeks.
Flexible project structures
Hourly, fixed-scope, or ongoing — structure projects to fit your evaluation workflow.
Project Types You Can Post
We support all major AI evaluation and data annotation project types.
AI Model Evaluation
Structured quality assessments of model outputs by domain experts.
RLHF / Preference Ranking
Human preference data collection to improve model alignment.
Multilingual Evaluation
Native speaker evaluation across 25+ European languages.
Red Teaming & Safety Testing
Adversarial prompt testing and safety failure identification.
Domain Expert Review
Specialist verification in law, medicine, finance, and science.
Agent Workflow Testing
Evaluation of agentic AI across complex multi-step task scenarios.
Coding Evaluation
Code quality, correctness, and style evaluation by experienced developers.
Data Quality Review
Expert review and correction of training data for accuracy and coverage.
How It Works for Companies
Register your company
Create a company profile with your use case and project requirements.
Post a project
Describe your project, expertise needs, language requirements, and timeline. Add custom screening questions.
Review applicants
Approved experts apply with detailed cover notes and answers to your screening questions. You review and shortlist.
Start contributing
Onboard your selected contributors and begin your evaluation project with structured, reliable human feedback.
Built for how AI teams actually work
ExpertSet is designed for AI labs and product teams running structured evaluation workflows — not one-off data tasks. We match your evaluation needs with the right European expertise.