Snorkel AI
Data & training · US
Snorkel AI was valued at $3.5B as of 22 September 2026 (verified). Source: Snorkel AI Raises $350M to Scale the Data Factory for Frontier AI - Series E co-led by Insight Partners and S32, with Addition, Lightspeed, Greylock and GV (company release).
Stanford AI Lab spinout that began as programmatic data-labelling software and became a data-as-a-service business in September 2025 - building specialist training datasets, reinforcement-learning environments and evaluation sets for frontier labs, hyperscalers and enterprises.
- Valuation
- $3.5B
- Confidence
- verified
- As of
- 22 September 2026
- Layer
- Data & training
- Signal
- training data
- Website
- snorkel.ai
Relationships (1)
Notes
Stanford AI Lab spinout that began as programmatic data-labelling software and became a data-as-a-service business in September 2025 - building specialist training datasets, reinforcement-learning environments and evaluation sets for frontier labs, hyperscalers and enterprises. Annualised revenue run rate crossed $350M, about 18x higher than a year earlier, which is what tripled the mark.
Sources
- Snorkel AI Raises $350M to Scale the Data Factory for Frontier AI - Series E co-led by Insight Partners and S32, with Addition, Lightspeed, Greylock and GV (company release) 2026-09-22
- TechCrunch, Snorkel AI triples valuation to $3.5B as demand for AI training data booms 2026-09-22
- Reuters (exclusive), Snorkel AI valued at $3.5 billion amid surging demand for complex AI training data 2026-09-22
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Last updated 22 September 2026. Follow Snorkel AI in any feed reader to hear when its valuation moves.
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