Prolific

High-quality human-powered data collection is the field Prolific leads, connecting more than 35,000 researchers and AI developers with a vetted pool of over 200,000 diverse participants for rapid data gathering across AI training, surveys, and behavioral experiments. Founded in 2014 by Phelim Bradley and Katia Damer in London, and launching a study every 2 minutes, it supports academia, startups, and giants such as Unilever, emphasizing ethical AI and fair participant treatment. Backed by $32M in Series A funding, it holds Cyber Essentials certification and is part of the US AI Safety Institute Consortium.