Snorkel AI announced a $350M Series E financing round at a valuation of $3.5B, led by Insight and S32, with participation from numerous prominent investors.
The company has experienced a significant growth rate, increasing its revenue by more than 18x over the past year, reaching an annualized revenue run rate of $375M from $20M.
This growth is attributed to the success of their data-as-a-service offering, after stopped selling just data tooling and launched their data-as-a-service business in Sep 2025, which has attracted partnerships with frontier labs, hyperscalers, and U.S. government agencies.
The funding will enable Snorkel AI to further invest in their RSI engine and data development platforms, aiming to enhance AI safety and performance through high-quality, human-centric data solutions.