Company lists · Data refreshed November 2026

Top 25 AI dataset creation services based in the United States

RevenueBase identified 136 company matches for AI dataset creation services associated with the United States as of November 2026 and tracks 53,705 professional contacts across them, including 5,751 with verified work emails. San Francisco is the largest hub.

This list covers company matches for AI dataset creation services associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
136Companies
53,705Contacts tracked
5,751Verified emails
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The 25 largest AI dataset creation services based in the United States

Ranked by team size
Top 25 of 136 company matches for AI dataset creation services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchKirkland, WA, United StatesHQ recorded Nov 6, 2026n/a20,812 contacts →

Exact match

“Appen has been a leader in AI training data for over 25 years, providing high-quality, diverse datasets that power the world's leading AI models.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchRidgefield Park, NJ, United StatesHQ recorded Nov 6, 20265,001-10,0009,017 contacts →

Exact match

“NASDAQ: INOD) Innodata is a global data engineering company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSan Jose, CA, United StatesHQ recorded Nov 6, 202610001+6,998 contacts →

Exact match

“iMerit is a leader in expert data solutions for training, tuning and evaluating AI models and computer vision systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLas Vegas, NV, United StatesHQ recorded Nov 6, 202610001+5,427 contacts →

Exact match

“TELUS Digital AI & Data Solutions partners with a diverse and vibrant community to help our customers enhance their AI and machine learning models.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchRedmond, WA, United StatesHQ recorded Nov 6, 20265,001-10,0003,187 contacts →

Exact match

“Zero distance innovation for GenAI creators and industries Expertly engineering platforms and curating multimodal, multilingual data, we empower the ‘Magnificent Seven’ and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMiami, FL, United StatesHQ recorded Nov 6, 2026501-1,000954 contacts →

Exact match

“With 30+ years of experience in data annotation, we support AI innovators to build smarter AI.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSingapore, CA, United StatesHQ recorded Nov 6, 2026201-500930 contacts →

Exact match

“Thoth AI is a global AI data solutions company with R&D operations in Silicon Valley, working with AI teams to support the design, development, and deployment of production-grade…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 2026201-500660 contacts →

Exact match

“Productive Playhouse is the execution partner technical program managers trust when scale, compliance, and quality can’t slip.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMountain View, CA, United StatesHQ recorded Nov 6, 202651-200536 contacts →

Exact match

“Build Super Accurate AI with us.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 2026n/a503 contacts →

Exact match

“Wirestock powers AI labs with premium data from a global network of creators.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202651-200366 contacts →

Exact match

“SuperAnnotate bridges the gap between cutting-edge AI innovation and the high-quality human data that powers it - helping advanced AI teams build more intelligent models.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United StatesHQ recorded Nov 6, 2026201-500337 contacts →

Exact match

“Shaip, by Ubiquity, provides end-to-end AI data services-data collection, licensing, validation, transcription, and annotation-across text, audio, image, and video.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 2026n/a318 contacts →

Exact match

“Shipd is the platform where exceptional individuals are paid to solve problems that stump the best foundation models.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchPalo Alto, United StatesHQ recorded Nov 6, 202651-200316 contacts →

Exact match

“Abaka AI delivers human intelligence data for frontier AI, helping power advanced systems through a trustworthy data platform.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchStanford, CA, United StatesHQ recorded Nov 6, 202651-200299 contacts →

Exact match

“Pareto.AI is a talent-first human data collection platform for AI research, empowering the top 0.01% of expert labelers to deliver the highest-quality training data.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchRemote, United StatesHQ recorded Nov 6, 202651-200144 contacts →

Exact match

“Roboflow creates software-as-a-service products to make building with computer vision easy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchNewark, DE, United StatesHQ recorded Nov 6, 2026201-500142 contacts →

Exact match

“Wow AI | Powered by AIxBlock - is an.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLas Vegas, NV, United StatesHQ recorded Nov 6, 202610001+124 contacts →

Exact match

“TELUS International AI Data Solutions partners with a diverse and vibrant community to help our customers enhance their AI and machine learning models.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchHampton, VA, United StatesHQ recorded Nov 6, 202651-200108 contacts →

Exact match

“Liberty Source PBC is a U.S-based provider of human-in-the-loop data services that help companies realize maximum value from their Artificial Intelligence, Machine Learning, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202651-200106 contacts →

Exact match

“HumanSignal enables data science teams to build AI models with their company DNA.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchWilmington, DE, United StatesHQ recorded Nov 6, 20261,001-5,00083 contacts →

Exact match

“AI Workspace has bagged a unique position in deliberating Sourcing, Data Annotation, and Generative AI services thereby initializing supervised learning for Machine Learning…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchFalls Church, VA, United StatesHQ recorded Nov 6, 202651-20074 contacts →

Exact match

“The World’s most sophisticated AI and machine learning systems are only as good as the data that drives them.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBoston, MA, United StatesHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“Centaur.ai data empowers you to build and deploy high-stakes AI.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchAnn Arbor, MI, United StatesHQ recorded Nov 6, 202651-20061 contacts →

Exact match

“Voxel51 is the leading data platform for physical AI.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBellevue, WA, United StatesHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“With a deep dedication to creating ground-breaking tools plus large-scale human insight, we address the pain points of curating data for machine learning and other artificial…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 136 AI dataset creation services based in the United States

See the full list, filter by size, metro and specialty, and access 5,751 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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AI dataset creation services based in the United States at a glance

As of Nov 6, 2026
10.7%Verified-email coverage
394.9Average contacts per company
11-50Median size (employees)
21.3%Largest-city concentration · San Francisco
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
35
11-50
43
51-200
32
201-500
12
501-1,000
6
1,001-5,000
2
5,001-10,000
3
10001+
3

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 136 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “AI dataset creation services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 5,751 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “AI dataset creation services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many AI dataset creation services are there based in the United States?

RevenueBase identified 136 company matches for AI dataset creation services associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

APPEN tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most AI dataset creation services?

San Francisco leads with 29 company records, followed by New York (13) and San Jose (8).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 5,751 professional contacts with verified work emails tracked across these 136 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.