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Snorkel AI is a software company that provides a platform for building and managing training data for machine learning models. Their platform allows developers and data scientists to label data programmatically and efficiently, using a combination of weak supervision and human-in-the-loop labeling. By automating the data labeling process, Snorkel AI enables companies to train machine learning models faster and with higher accuracy, while reducing the cost and time required for data labeling. The company was founded in 2019 by a group of researchers from Stanford University and is based in Palo Alto, California.
Last updated
In 2025, Snorkel AI's revenue reached $148M. The company previously reported $36.8M in 2024. Since its launch in 2019, Snorkel AI has shown consistent revenue growth.
Snorkel AI reached a $1.3B valuation in 2025.
Snorkel AI has raised $235.3M in total funding across 5 rounds, most recently a $100M Series D round in 2025.
| Year | Round | Amount | Valuation | % Sold | Source |
|---|
CEO
Alex Ratner is a third-year PhD student at the Stanford InfoLab working under Chris Re. Alex works on new machine learning paradigms for settings where limited or no hand-labeled training data is available, motivated in particular by information extraction problems in domains like genomics, clinical diagnostics, and political science.
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We do not have customer count information for Snorkel AI yet.
Snorkel AI employs approximately 1K people as of 2026, up from 352 in 2024, including 4 sales reps that carry a quota.
Snorkel AI generates $148M in revenue.
Snorkel AI was founded by Alexander Ratner.
The CEO of Snorkel AI is Alexander Ratner.
Snorkel AI raised $235.3M across 5 rounds.
Snorkel AI has 776 employees.
Snorkel AI is headquartered in Redwood City, California, United States.
Snorkel AI operates across multiple industries. Browse revenue, funding, and growth data for Snorkel AI in each sector below.
All figures on this page are taken directly from interviews or are estimates from public sources and proprietary models. Not financial advice. Read full disclaimer.
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Valuation
$1.3B
2025 Revenue
$148M
Funding
$235.3M
YOY
302.2%
Team
776
Founded
2019
| Year | Milestone | Source |
|---|---|---|
| 2025 | Snorkel AI Hit $148m revenue in October 2025 | |
| 2024 | Snorkel AI Hit $36.8m revenue in November 2024 | |
| 2023 | Snorkel AI Hit $4.7m revenue in December 2023 | Estimated |
| 2021 | Snorkel AI Hit $1.2m revenue in August 2021 | |
| 2019 | Launched with $0 revenue |
| 2025 | Funding round | - | $6.4B | - |
| 2025 | $100M Series D | $100M | - | - | businesswire.com |
| 2025 | Funding round | - | $1.3B | - | forbes.com |
| 2021 | Series C | $85M | $915M | 9% |
| 2021 | Series B | $35M | $100M | 35% |
| 2020 | Series A | $12M | $60M | 20% |
| 2020 | Seed Round | $3.3M | $13M | 25% |
| Year | Milestone | Source |
|---|---|---|
| 2025 | Reached 776 employees (November 2025) | |
| 2025 | Reached 1K employees (January 2025) | reveliolabs.comEstimated |
| 2024 | Reached 352 employees (December 2024) | |
| 2024 | Reached 120 employees (October 2024) | |
| 2023 | Reached 120 employees (December 2023) | |
| 2023 | Reached 120 employees (July 2023) | |
| 2022 | Reached 141 employees (December 2022) | |
| 2021 | Reached 119 employees (December 2021) | |
| 2021 | Reached 81 employees (August 2021) |
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