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Total amount raised
$235M
Latest funding date
2025-08-06
Location
Snorkel AI has raised over $235 million across multiple funding rounds backed by investors including Addition, Greylock, Lightspeed Venture Partners, BlackRock, GV, and Accenture Ventures.
What Is Snorkel AI?
Snorkel AI is a Redwood City, California-based enterprise AI company founded in 2019 by Stanford AI Lab alumni Alexander Ratner, Christopher Ré, Braden Hancock, Henry Ehrenberg, and Paroma Varma. The company builds the Snorkel AI Data Development Platform, a unified solution designed to help enterprises programmatically develop high-quality datasets for modern AI systems — including large language models (LLMs), retrieval-augmented generation (RAG) pipelines, and AI agents. Its mission is to make AI data development as systematic and scalable as any other software engineering discipline. Notable customers include BNY, Wayfair, Chubb, the U.S. Air Force, and other Fortune 500 companies and government agencies.
How Much Funding Has Snorkel AI Raised?
- Seed Round
- Amount Raised: USD 3,250,000
- Date: July 2020 (announced publicly; originally raised prior to launch)
- Lead Investors: Greylock, GV (Google Ventures)
- Participants: In-Q-Tel, Accel
- Series A
- Amount Raised: USD 12,000,000
- Date: July 2020 (announced July 14, 2020 alongside Seed)
- Lead Investors: Greylock
- Participants: GV (Google Ventures), In-Q-Tel
- Series B
- Amount Raised: USD 35,000,000
- Date: April 5, 2021
- Lead Investors: Lightspeed Venture Partners (Ravi Mhatre)
- Participants: Greylock, GV, In-Q-Tel, Nepenthe Capital, BlackRock, Boston Trust Walden
- Series C
- Amount Raised: USD 85,000,000
- Date: August 9, 2021
- Lead Investors: Addition, BlackRock
- Participants: Greylock, GV, Lightspeed Venture Partners, Nepenthe Capital, Walden International
- Valuation: $1 billion
- Strategic Round (Series Unknown)
- Amount Raised: Undisclosed
- Date: January 23, 2024
- Lead Investors: QBE Ventures
- Series D
- Amount Raised: USD 100,000,000
- Date: May 29, 2025
- Lead Investors: Addition
- Participants: Prosperity7 Ventures, Greylock, Lightspeed Venture Partners, BNY, QBE Ventures
- Valuation: $1.3 billion
- Strategic Investment (Series Unknown)
- Amount Raised: Undisclosed
- Date: August 6, 2025
- Lead Investors: Accenture Ventures
Total Amount Raised: At least $235,250,000 based on disclosed funding (two strategic rounds in January 2024 and August 2025 had undisclosed amounts).
Key Investors
- Addition
- Details: New York-based venture capital firm; led both the Series C and Series D rounds. Addition partner Todd Arfman backed the Series D at a $1.3 billion valuation.
- Greylock
- Details: Prominent Silicon Valley VC firm and early backer since Snorkel AI's seed/Series A. Greylock partner Saam Motamedi participated across multiple rounds.
- Lightspeed Venture Partners
- Details: Led the Series B in April 2021 via partners Ravi Mhatre and Raviraj Jain; continued participating in subsequent rounds.
- BlackRock
- Details: Global asset management firm; co-led the Series C alongside Addition, and participated in the Series B.
- GV (Google Ventures)
- Details: Venture arm of Alphabet; participated from the Seed/Series A through the Series C.
- Accenture Ventures
- Details: Strategic arm of Accenture; made an undisclosed strategic investment in August 2025, with Snorkel AI joining Accenture Ventures' Project Spotlight accelerator program. Investment focuses on helping financial services firms transform data into AI solutions.
- QBE Ventures
- Details: Venture arm of insurance group QBE; made an undisclosed strategic investment in January 2024 and participated in the Series D in May 2025.
- In-Q-Tel
- Details: US government-affiliated strategic investor; participated from the Seed round through the Series B, reflecting Snorkel AI's relevance to federal and defense applications.
What's Next for Snorkel AI?
With $100 million in fresh capital and a $1.3 billion valuation, Snorkel AI is focused on accelerating AI development for enterprises and government agencies. The company plans to expand its platform capabilities, grow its team, and deepen partnerships with organizations across industries leveraging AI for competitive advantage.
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