Snorkel AI

Snorkel AI was founded in 2019 in Redwood City, California, positioning itself as a frontier AI data lab that provides training datasets, RL environments, and data labeling automation to AI labs and large enterprises. In September 2026, Snorkel AI completed a $350 million Series E round at a post-money valuation of $3.5 billion. Its annualized revenue run rate reached $375 million, up about 18x year over year.