About Snorkel AI
Snorkel AI is a data-centric AI platform that enables enterprises and government agencies to build, manage, and evaluate high-quality training data for machine learning at scale. Founded in 2019 by Alexander Ratner, Braden Hancock, Chris Ré, and fellow researchers out of the Stanford AI Lab, Snorkel AI has raised approximately $235 million in total funding and was most recently valued at $1.3 billion following its Series D in May 2025.
Snorkel's flagship product — Snorkel Flow — allows data scientists and ML engineers to programmatically label, curate, augment, and fine-tune training data without relying on manual annotation at scale. This approach can reduce data labeling time by 10–100x while improving model quality. Customers include the U.S. Department of Defense, the U.S. Air Force, and Fortune 500 enterprises across financial services, healthcare, and technology. As of 2025, Snorkel AI reported approximately $148 million in ARR and approximately 776 employees.
Snorkel AI's Series D was led by Addition with participation from QBE Ventures and existing investors. The broader investor base includes BlackRock, Greylock, GV (Google Ventures), Lightspeed Venture Partners, Accenture Ventures, Aramco Ventures, and In-Q-Tel — the CIA's venture capital arm — underscoring Snorkel's deep relevance to defense and regulated industries.
Funding History
| Round | Date | Amount Raised | Post-Money Valuation | Notable Investors |
|---|---|---|---|---|
| Series D | May 2025 | $100M | ~$1.3B | Addition, QBE Ventures, existing investors |
| Series C | Aug 2021 | $85M | ~$1B | Addition, BlackRock, Greylock, GV (Google Ventures), Lightspeed Venture Partners |
| Series B | 2020 | $35M | Undisclosed | Greylock, GV (Google Ventures), In-Q-Tel |
| Series A | 2019 | $15M | Undisclosed | Greylock, GV (Google Ventures), In-Q-Tel |
Figures sourced from public disclosures. Approximate. For informational purposes only. Not an offer or solicitation.
Company Details
Snorkel AI Stock FAQs
Access Pre-IPO AI Companies Through FNEX Ventures Fund
The FNEX Ventures Fund provides accredited investors with diversified exposure to high-growth private technology and AI companies — including positions in companies like Snorkel AI — through a single professionally managed private fund vehicle.
Book a Call Learn About the FundSecurities offered through FNEX Capital, LLC, member FINRA & SIPC. This material does not constitute an offer to sell nor a solicitation of an offer to buy any security. Such offers can be made only by the confidential Private Placement Memorandum (the "Memorandum"). Please read the entire Memorandum paying special attention to the risk section prior to investing. Available only to accredited investors. FNEX Ventures is required to verify accreditation status prior to accepting any investment.
This is a private company. Its shares are not publicly traded and no market pricing is provided on this page. All valuation figures are based on publicly reported funding round data and are not indicative of current market value, intrinsic value, or future performance. Private company valuations are inherently uncertain and may change materially over time.
Company names, logos, and trademarks referenced or displayed on this page are used for illustrative purposes only and do not represent actual holdings, target investments, or future investment intentions of the FNEX Ventures Fund. There is no guarantee that any portfolio company will complete an initial public offering (IPO), merger, acquisition, or other liquidity event. Investment in private funds involves a high degree of risk, including the possible loss of the entire investment. Past performance is not indicative of future results.
