Snorkel AI raises $350M at $3.5B valuation as AI training data demand booms

ajratner · x · 2026-09-23

Snorkel AI, which helps AI labs and enterprises build training datasets and simulated environments, has raised a $350M Series E at a $3.5B valuation, led by Insight Partners and S32, per TechCrunch. That's nearly triple the $1.3B valuation from its $100M Series D 17 months ago; Addition, Lightspeed, Greylock, GV and Wells Fargo also participated. Originally a data-labeling automation software vendor, Snorkel shifted last year to delivering finished datasets (data-as-a-service) via a hybrid of synthetic generation and subject-matter experts, with a rapidly growing revenue run rate.

Related event: Snorkel AI Raises $350M Series E at $3.5B Valuation(15 posts)→

Original post →

More from Venture

Venture channel →