Exclusive-Snorkel AI valued at $3.5 billion amid surging demand for complex AI training data
The startup said annualized revenue run-rate topped $350 million as it shifts toward finished datasets and reinforcement-learning environments.
- On Tuesday, Snorkel AI raised $350 million in fresh funding at a $3.5 billion valuation, CEO Alex Ratner told Reuters. The capital will support the data startup's work supplying training datasets to frontier AI laboratories.
- Founded in 2019 by Stanford researchers, Snorkel shifted last year from selling software to offering 'data-as-a-service' directly to customers. The pivot followed growing demand from developers seeking harder, high-stakes datasets to train increasingly capable AI systems.
- Insight Partners and S32 led the funding round, with participation from existing investors Addition, Greylock, and Wells Fargo. Snorkel's annualized revenue run-rate has crossed $350 million, up from roughly $20 million a year earlier.
- Utilizing an 'agentic data development platform,' Snorkel pairs human experts with AI to create and vet datasets. Ratner said the capital will fund researcher hiring and expand enterprise and government operations, with profitability expected this year.
- Venture funding continues to flow into the training-data sector, transformed by Meta's $14.3 billion purchase of a 49% stake in Scale AI in June 2025. Rivals including Mercor and Handshake have also seen rapid revenue growth in this expanding market.
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EXCLUSIVE: Snorkel AI valued at $3.5 billion amid surging demand for ...
Snorkel AI raises $350M at $3.5B valuation as revenue surges 17X on AI training data boom - Tech Startups
Snorkel AI has raised $350 million at a $3.5 billion valuation after its annualized revenue run-rate exploded from roughly $20 million to more than $350 million in about a year, a striking sign of how valuable high-quality training data has […] The post Snorkel AI raises $350M at $3.5B valuation as revenue surges 17X on AI training data boom first appeared on Tech Startups.
Snorkel AI valued at $3.5 billion amid surging demand for complex AI training data
Led by Insight Partners and S32, the funding round included participation from existing investors Addition, Greylock and Wells Fargo, the company said. The deal values the company at nearly three times the $1.3 billion valuation achieved when it last raised $100 million in May 2025.
Training data provider Snorkel AI raises $350M at $3.5B valuation
Snorkel AI Inc., a provider of artificial intelligence training data, today disclosed that it has raised $350 million in funding. Insight and S32 led the Series E deal. They were joined by more than a half-dozen other backers including Alphabet Inc.’s GV startup fund. Snorkel AI was founded in 2019 by researchers from the Stanford […]
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