Funding round
Snorkel AI Series E
Snorkel AI, which works in research-grade dataset development in Redwood City, raised $350M in a Series E round announced on 22 Sep 2026, led by Insight Partners and S32, at a $3.50B post-money valuation. 16 firms took part, 8 of them already investors. It is Snorkel AI's fifth venture round on record; the one before was a Series D in May 2025.
$350M
Amount raised
$3.50B
Post-money valuation
$3.15B pre-money
16
Investors
2 leads
2.7x
Step-up from the Series D
$1.30B in May 2025
10%
Stake sold
new money over the post-money
Valuation
What this round says about the price
This round priced Snorkel AI at $3.50B after the new money, 2.7 times the $1.30B of its Series D (May 2025). The $350M bought investors about 10% of the company. It came 16 months after Snorkel AI's Series D. It is 61% of the $573M Snorkel AI has raised in the venture rounds on record. No later venture round is on record for Snorkel AI.
Snorkel AI's funding rounds
Snorkel AI has 5 venture rounds on record and 1 other deal. This one is highlighted.
- Seed 1 Jan 2019 $3.0M
- Other not a venture round 14 Jul 2020, led by Greylock Partners $15M
- Series B 7 Apr 2021, led by Lightspeed Venture Partners $35M
- Series C 9 Aug 2021, led by Addition and BlackRock $85M$1.00B post-money
- Series D 29 May 2025, led by Addition $100M$1.30B post-money
- Series E this round 22 Sep 2026, led by Insight Partners and S32 $350M$3.50B post-money
Investors
Who put money in
Insight Partners and S32 led the round with 14 other firms. Addition, Greylock Partners, Lightspeed Venture Partners and GV and 4 more had backed Snorkel AI before.
Lead investors
- Insight Partners backs 548 venture-backed companies new investor
- S32 new investor
Also in the round
- Addition existing investor
- backs 12 venture-backed companies new investor
- backs 64 venture-backed companies new investor
- backs 24 venture-backed companies new investor
- backs 72 venture-backed companies new investor
- Standard new investor
- Third Point Ventures new investor
- Greylock Partners backs 190 venture-backed companies existing investor
- Lightspeed Venture Partners backs 454 venture-backed companies existing investor
- GV backs 428 venture-backed companies existing investor
- Factory existing investor
- backs 48 venture-backed companies existing investor
- backs 25 venture-backed companies existing investor
- Wells Fargo existing investor
Use of proceeds
What the money is for
According to the announcement, the money goes to hiring, product development, geographic expansion, scaling operations and working capital.
- Hiring
- Product development
- Geographic expansion
- Scaling operations
- Working capital
Comparable rounds
How it compares
The closest in time: 2 in Software Development Services, then Series E rounds in any sector within 6 months:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Baseten Software Development Services | 23 Jan 2026 | $300M | $5.00B | Institutional Venture Partners and CapitalG |
| Deel Software Development Services | 20 Oct 2025 | $300M | $17.30B | Ribbit and Andreessen Horowitz |
| Stoke Space Aerospace and Defence | 8 Sep 2026 | $1.00B | $10.00B | Point72 Ventures and Spark Capital |
| Temporal Tech Companies | 14 Sep 2026 | $550M | $12.55B | Lightspeed Venture Partners and Wellington Management |
| Enveda Biotechnology | 23 Sep 2026 | $311M | $2.00B | Catalio Capital Management |
| Health Care Services | 24 Sep 2026 | $155M | not disclosed | Francisco Partners |
| Video Games - Development & Publishing | 17 Sep 2026 | $150M | not disclosed | Baillie Gifford and BAI Capital |
| Health Care Services | 2 Sep 2026 | $125M | $2.00B | Morgan Health |
Sources
Where this comes from
Reported by 17 sources.
Questions
Frequently asked
How much did Snorkel AI raise in its Series E round?
Snorkel AI raised $350M in its Series E round, announced in Sep 2026.
Who led Snorkel AI's Series E round?
Insight Partners and S32 led it, with Addition, March Capital, Blumberg Capital, Allegis Capital and Frontline and 9 more.
What was Snorkel AI's valuation at the Series E round?
$3.50B post-money ($3.15B pre-money).