# Find data labeling companies to sell to

> Revnu is your AI growth hire. It finds customers, runs email and LinkedIn outreach, manages paid ads, and publishes content for Google and AI search.

Canonical: https://revnu.com/find/data-labeling

**Sell to data labeling companies that are scaling their workforce.**

Revnu finds data labeling and annotation companies by size, funding and the roles they're hiring, and reaches the founder or operations leader in your voice.

- Labeling, annotation and AI training data companies by size and funding.
- Hiring signals that show who is adding annotators and experts.
- The founder or operations leader at each, with a verified work email.

From $99 a month. No contract. Cancel anytime.

## What Revnu found (real companies, researched 2026-11-08; emails hidden)

### By Sector

> Find US data labeling and annotation companies with 10 to 1,000 people.

Found 82 companies that match. The 8 best fits, scored on size, funding and how recently they raised.

| Fit | Company | Sector | HQ | Employees | Raised |
|---|---|---|---|---|---|
| 92 | Superb AI Inc. | Data Labeling | San Mateo, California | 64 | $48M |
| 87 | Encord | Data Annotation | San Francisco, California | 231 | $110M |
| 86 | Perle | Data Labeling | San Francisco, California | 168 | $16M |
| 86 | Atexto | Data Labeling | San Francisco, California | 98 | $1.1M |
| 86 | Liberty Source PBC | Data Labeling | Fort Monroe, Virginia | 98 | $705K |
| 83 | Enabled Intelligence, Inc | Data Labeling | Falls Church, Virginia | 72 | $1M |
| 80 | Centrox AI | Training Data | New York, New York | 49 | $30K |
| 79 | Clarifai | Data Annotation | Wilmington, Delaware | 46 | $100M |

### By Funding

> Which data labeling and AI data companies raised in the last two years?

5 raised in that window. The 5 best fits, newest money weighted highest.

| Fit | Company | Round | Amount | Raised | Employees |
|---|---|---|---|---|---|
| 91 | Encord | Series C | $60M | Feb 26, 2026 | 231 |
| 85 | Findem | Series C | $15M | Oct 21, 2025 | 220 |
| 83 | Perle | Seed | $9M | Aug 7, 2025 | 168 |
| 75 | TRAVV | Seed | $1.6M | May 6, 2026 | 6 |
| 68 | Unitlab AI | Seed | $400K | Mar 18, 2025 | 20 |

### Growth Signals

> Who is hiring AI trainers or annotators this month? They're adding workforce.

23 matching job posts in the last 30 days. The 4 companies with the strongest signal.

| Fit | Company | Signal | Posted | Employees |
|---|---|---|---|---|
| 89 | Expedock | 2 open roles: Data Annotator - LATAM | Oct 27, 2026 | 236 |
| 87 | Fearless | 2 open roles: AI Engineering Trainer, (1099 Contractor) | Oct 24, 2026 | 229 |
| 83 | Braintrust | 5 open roles: Business Analyst - AI Evaluator / AI Trainer (US ONLY) | Oct 13, 2026 | 394 |
| 82 | Inworld AI | Hiring: AI Trainer (Contractor), Voice and Speech Evaluation - USA | Oct 27, 2026 | 86 |

### Enrich Contacts

> Get the founder or an operations leader at each, with a verified work email.

Checked 11 decision makers. 7 have a verified work email at their current company; emails stay hidden here.

| Company | Name | Title | Email | Status |
|---|---|---|---|---|
| Superb AI Inc. | Hyun Kim | Co-Founder and CEO | h•••@superb-ai.com | Verified |
| Inworld AI | Kylan Gibbs | CEO & Co-Founder | k•••@inworld.ai | Verified |
| Braintrust | Adam Jackson | Founder & CEO of Freelance Labs, Builders of Braintrust | a•••@usebraintrust.com | Verified |
| Findem | Hariharan Kolam | Founder and CEO | h•••@findem.ai | Verified |
| Clarifai | Matthew Zeiler | Founder and CEO | m•••@clarifai.com | Verified |
| Encord | Ulrik Stig Hansen | Co-Founder & Co-CEO | u•••@encord.com | Verified |
| Expedock | Jeff Tan | CEO & Co-Founder | j•••@expedock.com | Verified |

## Running a business like this?

- [Revnu for Data labeling](https://revnu.com/for/data-labeling)
- [Data labeling marketing guide](https://revnu.com/grow/data-labeling-company)
- [AI model launches play](https://revnu.com/docs/play-ai-model-launches)
- [Eval engineer hiring play](https://revnu.com/docs/play-eval-engineer-hiring)
- [Find SaaS buyers](https://revnu.com/find/saas)
- [Find AI startups buyers](https://revnu.com/find/ai-startups)
- [Find Developer tools buyers](https://revnu.com/find/developer-tools)
- [All industries](https://revnu.com/for)

## FAQ

### Which data labeling companies does it cover?

Training data, RLHF, expert annotation, data operations and AI evaluation companies, from small specialist shops to large managed workforces. You say which; Revnu filters and ranks by fit.

### Who does it contact?

The founder at smaller companies. At larger ones, the head of operations, delivery or workforce, picked for what you sell and checked against their role.

### How do I start finding Data labeling buyers with Revnu?

Sign up at revnu.com/sign-up, give Revnu your website and tell it you sell to these companies. It builds the list, finds the right person at each and drafts the first email for you to approve. revnu.com/docs/find-leads explains how it finds and checks each company, and revnu.com/docs/get-started covers your first day.

### How many companies like this can Revnu find?

82 US data labeling and annotation companies with 10 to 1,000 people matched this search on November 8, 2026. Revnu narrows them to the ones that fit who buys from you, and ranks them by a reason to reach out now.

### Are the companies in the demo real?

Yes. The companies, counts, funding and headquarters are a dated snapshot of the data Revnu searches: company, funding, job-post and people data from third-party providers, plus the public web. The people and companies in the buyers example are made up, because we don't publish real people's contact details.

### Does Revnu send anything without me?

Only what you allow. Three steps, in order. First, your first sequence waits for you to read and approve it. Then Settings > Agent > What Needs Your Approval decides: on Pro, a new sequence starts on its own and its steps send without asking each time, while one-off emails, LinkedIn invites and LinkedIn messages ask first. Switch any of them either way. And whatever you set, replies to prospects, spend, budgets, booking links and new inboxes always wait for your yes.

### How fast does it start?

Revnu prepares its first piece of work, such as a list of buyers or a blog draft, within minutes of starting. Email from your own Gmail or Outlook can go out the same day; new sending inboxes Revnu buys warm up first, which takes days to weeks.

### What does it cost?

Pro is from $99 a month, with no minimum term, and you can cancel from billing settings. Sending domains, inboxes and lead data are included. Ad spend is billed by the ad platforms to your own accounts. If you want Revnu's team to run it with you, Managed is priced on a call.

## Machine-readable resources

- LLM index: https://revnu.com/llms.txt
- Full LLM context: https://revnu.com/llms-full.txt