Prolific
Human data platform for AI — high-quality participants for model training and research.
AI
📍 London, UK
Founded 2014
Current Valuation
Private
PRIVATE
Prolific is a London-based human-data marketplace founded in 2014 by doctoral researchers Phelim Bradley, Ekaterina Damer, and Jim Moodie. AI developers and academic researchers use it to recruit vetted participants for training data, evaluations, and behavioral studies. Has raised approximately $33M total, with a £25M (~$32M) Series A in July 2023 co-led by Partech and Oxford Science Enterprises.
Company Profile
Last Round
Series A — $32M (Jul 2023) · Lead: Partech / Oxford Science Enterprises
Founders & Key People
Phelim BradleyEkaterina DamerJim Moodie
Investors
Partech · Oxford Science Enterprises
Products
- Prolific marketplace
- Human data for AI training
- Research participant recruitment
Competitors
Scale AI · Surge AI · Appen · Labelbox · Mercor
AIData LabelingHuman-in-the-loop
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of recent date. Refreshed quarterly.