Company · Data & infrastructure
Surge AI revenue, valuation & funding
Surge AI has never closed an outside funding round, and talks reported in October 2025 put its value at about $24B. Forbes put its 2024 revenue at $1.2 billion, and it's a private company with no announced IPO plan.
At a glance
- Valuation: none confirmed, since Surge has never closed an outside round. In October 2025, 36Kr reported talks on a $1B Series A at about $24B.
- Revenue: $1.2 billion in 2024, as Forbes reported. Surge doesn't publish results.
- Status: private. No stock ticker. No IPO plan has been announced.
- CEO: Edwin Chen, who founded it in 2020 and held 75% of the shares as of September 2025.
- Investors: none from outside. Surge has run without outside investment, as reported in July 2025.
- Products: human data for AI labs, RL environments and verifiers, off-the-shelf datasets, and benchmarks gathered in the Tuesday Work Index.
- Headquarters: San Francisco.
- Employees: about 110 to 130 full-time, per Forbes as cited by AI Wiki. Sacra estimates about 50,000 expert contractors.
Is Surge AI public? Can you buy its stock?
No. Surge AI is a private company, so its shares don't trade on any stock exchange and it has no ticker symbol. It hasn't announced a plan or a date to go public.
Surge grew for years without outside investment. In July 2025, Reuters reported it was seeking up to $1bn in its first raise, at a valuation above $15bn. The deal was set to include selling existing founder and employee shares, with J.P. Morgan among the banks hired. In October 2025, 36Kr reported Surge was about to receive $1 billion at a valuation of about $24B. No close has been reported since.
Founder Edwin Chen held 75% of the shares as of September 2025. Employees hold shares too. This page reports facts and gives no investment advice.
Valuation, round by round
Reported talks valued Surge above $15bn in July 2025 and at about $24B by October 2025, but no round has closed.
| Date | Valued at | Raised | Led by | Source |
|---|---|---|---|---|
| Oct 2025 | about $24B | In talks | — | 36Kr |
| Jul 2025 | $15B | In talks | — | Yahoo Finance (Verdict, citing Reuters) |
Bloomberg's report of July 2025 talks at $25B or more appears only through Sacra, so it isn't confirmed. No lead investor or newer valuation has been reported.
Revenue
Surge doesn't publish results. Reuters reported in July 2025 that its revenue the year before was more than $1bn, and Forbes puts 2024 revenue at $1.2 billion.
| Date | Figure | Basis | Source |
|---|---|---|---|
| Jul 2025 | $1B+ | Reported | Yahoo Finance (Verdict, citing Reuters) |
Sacra estimates a $1.2B annualized rate for 2024. A run rate is a month's revenue times twelve and isn't audited revenue.
How Surge AI makes money
Surge sells human data to frontier AI labs. Its business combines usage-based pricing for API access with managed service contracts for complex RLHF projects, according to Sacra.
Reuters reported in July 2025 that Surge has been profitable since close to its founding. Edwin Chen told Forbes the same.
Products
By September 2025 Surge offered RL environments as a service and had an internal organization building them, according to Contrary Research.
- RL environments and verifiers. Environments that challenge agentic models, with verifiers that reward their behavior. Surge AI
- Off-the-shelf datasets. Ready-made data spanning RL environments, coding and core model skills. Surge AI
- Tuesday Work Index (August 2026). It combines all eight of Surge's benchmarks. Contrary Research
- GDP.pdf and Riemann-bench. Two Surge benchmarks. In July 2026 OpenAI cited GDP.pdf in its GPT-5.6 release, and Anthropic cited both in its Fable 5 and Mythos 5 system card. Contrary Research
- AdvancedIF. An instruction-following benchmark built with Meta Superintelligence Labs. Sacra
- DataAnnotation.Tech. A subsidiary that farms out assignments to contract workers. Inc.
Customers
Most of Surge's growth came from about 12 frontier AI labs, according to Sacra. Sacra names OpenAI, Google, Anthropic, Microsoft and Meta as the main ones.
- OpenAI and Anthropic became clients in 2021 and 2022, according to Contrary Research. Contrary Research
- US Army and Air Force. Forbes reported in August 2026 that both are verified US clients. AI Weekly
- Chinese AI labs. A Forbes investigation in August 2026 reported that Surge courted them, and that Chen traveled to China to meet lab executives. Forbes estimated the top six Chinese labs spend roughly $500 million a year with American data labelers. AI Weekly
- Annotators. Contrary Research estimates Surge worked with about 1 million annotators in 2025. Contrary Research
- Concentration. Sacra flags its reliance on 12 customers for over $1 billion in revenue. Sacra
Leadership
Surge runs with a small staff. AI Wiki, citing Forbes, puts its core full-time staff at about 110 to 130, and about 250 with part-time staff and consultants.
- Edwin Chen, founder and CEO. He founded Surge in 2020. Contrary Research
- Andrew Mauboussin, CTO. He was Chen's first engineering hire. Contrary Research
Who owns Surge AI?
Mostly its founder. Surge has taken no outside investment, so no venture firm is reported to hold a stake.
- Edwin Chen held 75% of the shares as of September 2025, according to Forbes 400 coverage cited by 36Kr. 36Kr
- Employees hold shares too. The 2025 raise was reported to include selling existing founder and employee shares, with J.P. Morgan among the banks hired. Yahoo Finance (Verdict, citing Reuters)
Competitors
Reuters reported in July 2025 that Surge's revenue the year before was more than $1bn, ahead of Scale AI's $870m.
- Scale AI, which Sacra names as Surge's primary competitive threat. Sacra
- Mercor, AfterQuery and Turing, grouped with Surge in August 2026 coverage as US data-labeling vendors serving Chinese labs. AI Weekly
- Micro1, Prolific, Toloka, Labelbox, SuperAnnotate and Label Studio, also listed by Sacra as competitors. Sacra
Timeline and latest news
From its founding to the latest reports, newest first.
- Oct 2026Latest
Surge was still defending the misclassification suit, which it calls without merit. Contrary Research - Aug 5, 2026Latest
A Forbes investigation reported that Surge courted Chinese AI labs. AI Weekly - Aug 5, 2026Latest
Forbes reported that its verified US clients include the Army and Air Force. AI Weekly - Aug 2026
Surge combined its eight benchmarks into the Tuesday Work Index. Contrary Research - Jul 2026
OpenAI and Anthropic cited Surge benchmarks in new model releases. Contrary Research - Oct 10, 2025
36Kr reported Surge was about to receive a $1B Series A at about $24B. 36Kr - Sep 2025
Forbes 400 coverage put Edwin Chen's stake at 75%. 36Kr - Sep 2025
Surge offered RL environments as a service and had a team building them. Contrary Research - Jul 1, 2025
Reuters reported Surge was seeking up to $1bn at a valuation above $15bn. Yahoo Finance (Verdict, citing Reuters) - Jul 1, 2025
Reuters reported Surge had more than $1bn in revenue the year before. Yahoo Finance (Verdict, citing Reuters) - Jul 2025
Two internal Surge documents were leaked. Wikipedia - May 20, 2025
A class action said Surge misclassifies its annotators as contractors. Bloomberg Law
Legal matters
Surge faces a class action over how it treats the people who label its data. As of October 2026, no ruling or settlement had been reported.
- Cavalier v. Surge Labs (filed May 20, 2025, San Francisco Superior Court). It claims Surge misclassifies data annotators as independent contractors and owes unpaid wages. Bloomberg Law
- Defendants. The suit names CEO Edwin Chen, along with 50 other unnamed people. Inc.
- Status. As of October 2026, Surge called the suit "without merit" and was still defending itself. Contrary Research
Questions people ask
Is Surge AI a public company? Can I buy Surge AI stock?
No. Surge AI is private and has no ticker, so its shares aren't sold on any exchange.
When will Surge AI IPO?
It hasn't announced a plan or a date to go public, and no filing has been reported.
Who owns Surge AI?
Mostly Edwin Chen, who held 75% of the shares as of September 2025, per 36Kr. Employees also hold shares, and it has taken no outside investment.
Who is the CEO of Surge AI?
Edwin Chen, who founded it in 2020.
How much is Surge AI worth?
It has no confirmed valuation because it hasn't closed an outside round. 36Kr reported talks in October 2025 at about $24B.
How much revenue does Surge AI make?
Forbes put its 2024 revenue at $1.2 billion, per AI Weekly. No newer figure has been reported.
Is Surge AI profitable?
It's reported to have been profitable almost since it was founded, per Reuters. It doesn't publish results.
Who are Surge AI's customers?
Mainly about 12 frontier AI labs, including OpenAI, Google, Anthropic, Microsoft and Meta, per Sacra.
Where is Surge AI headquartered?
San Francisco.
Who are Surge AI's competitors?
Scale AI above all, per Sacra, plus Mercor, Turing, Micro1, Labelbox and others.
People on Real Alpha
- Edwin Chen, Founder & CEO, Surge AI
Other companies in Data & infrastructure
Scale AI · Mercor · Databricks · Hugging Face · Modal · River AI · DatologyAI · Together AI · Fireworks AI · Baseten · LangChain · Turing
How this page is sourced
Each figure links to the filing, company statement or news report it came from, with its date. Run rates are what reporters were told, not audited results; estimates and unconfirmed reports are marked. Quotes are what each person said on the record, with the minute they said it. Spotted something that's off? .
Last checked Nov 7, 2026