Company lists · Data refreshed September 2026

Top 25 Openai companies worldwide

Name: Openai companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 7,154 companies tracked

RevenueBase identified 7,154 openai companies worldwide as of September 2026 and tracks 143,332 professional contacts across them, including 28,754 with verified work emails. The United States is the largest market and San Francisco the largest hub.

This list covers openai companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 27, 2026. Country and city lists for openai companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 27, 2026 86% judged on-target in blind review

7,154Companies

143,332Contacts tracked

28,754Verified emails

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The 25 largest openai companies worldwide

Ranked by team size

Top 25 of 7,154 openai companies worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to openai companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Baidu, INC	Indirect evidence	Beijing, ChinaHQ checked Sep 27, 2026	10001+	14,658 contacts →
	Indirect evidence “Baidu is a leading AI company with strong Internet foundation, driven by our mission to “make the complicated world simpler through technology”.” Source: RevenueBase Database · checked Sep 27, 2026
2	Openai	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	1,001-5,000	7,563 contacts →
	Strong evidence “OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity.” Source: RevenueBase Database · checked Sep 27, 2026
3	Google Deepmind	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	n/a	6,429 contacts →
	Indirect evidence “We’re a team of scientists, engineers, machine learning experts and more, working together to advance the state of the art in artificial intelligence.” Source: RevenueBase Database · checked Sep 27, 2026
4	Fractal	Indirect evidence	New York, United StatesHQ checked Sep 27, 2026	5,001-10,000	6,154 contacts →
	Indirect evidence “Fractal is a publicly listed global enterprise AI company with a vision to power every human decision in the enterprise.” Source: RevenueBase Database · checked Sep 27, 2026
5	Turing	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	1,001-5,000	6,094 contacts →
	Indirect evidence “Turing is one of the world’s fastest-growing AI companies accelerating the advancement and deployment of powerful AI systems.” Source: RevenueBase Database · checked Sep 27, 2026
6	Telus Digital AI Data Solutions	Indirect evidence	Las Vegas, NV, United StatesHQ checked Sep 27, 2026	10001+	4,886 contacts →
	Indirect evidence “TELUS Digital AI & Data Solutions partners with a diverse and vibrant community to help our customers enhance their AI and machine learning models.” Source: RevenueBase Database · checked Sep 27, 2026
7	Anthropic	Indirect evidence	United StatesHQ checked Sep 27, 2026	n/a	4,328 contacts →
	Indirect evidence “We're an AI research company that builds reliable, interpretable, and steerable AI systems.” Source: RevenueBase Database · checked Sep 27, 2026
8	Nuance Communications	Indirect evidence	Burlington, MA, United StatesHQ checked Sep 27, 2026	10001+	3,544 contacts →
	Indirect evidence “Nuance Communications is a technology pioneer with market leadership in conversational, ambient, and generative AI.” Source: RevenueBase Database · checked Sep 27, 2026
9	Centific	Indirect evidence	Redmond, WA, United StatesHQ checked Sep 27, 2026	5,001-10,000	2,982 contacts →
	Indirect evidence “Zero distance innovation for GenAI creators and industries Expertly engineering platforms and curating multimodal, multilingual data, we empower the ‘Magnificent Seven’ and…” Source: RevenueBase Database · checked Sep 27, 2026
10	Kaggle	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	n/a	1,323 contacts →
	Indirect evidence “Kaggle is a global community of practitioners, researchers, and enthusiasts building and advancing the frontier of AI.” Source: RevenueBase Database · checked Sep 27, 2026
11	Snorkel AI	Indirect evidence	Redwood City, CA, United StatesHQ checked Sep 27, 2026	201-500	967 contacts →
	Indirect evidence “Snorkel AI is the frontier AI data lab, helping teams build the data and environments behind high-performing frontier and agentic AI.” Source: RevenueBase Database · checked Sep 27, 2026
12	Trilogy	Indirect evidence	Austin, TX, United StatesHQ checked Sep 27, 2026	201-500	895 contacts →
	Indirect evidence “Trilogy acquires software companies and fundamentally transforms them with an AI-first strategy.” Source: RevenueBase Database · checked Sep 27, 2026
13	Mistral	Indirect evidence	Paris, FranceHQ checked Sep 27, 2026	201-500	844 contacts →
	Indirect evidence “Frontier AI.” Source: RevenueBase Database · checked Sep 27, 2026
14	Thoth AI	Indirect evidence	Singapore, CA, United StatesHQ checked Sep 27, 2026	201-500	770 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026
15	G42	Indirect evidence	Abu Dhabi, United Arab EmiratesHQ checked Sep 27, 2026	1,001-5,000	744 contacts →
	Indirect evidence “A leading AI & Cloud Computing company based in Abu Dhabi, committed to inventing a better everyday through the power of people and technology.” Source: RevenueBase Database · checked Sep 27, 2026
16	Akvelon, INC	Indirect evidence	Bellevue, WA, United StatesHQ checked Sep 27, 2026	1,001-5,000	738 contacts →
	Indirect evidence “Akvelon is a software engineering company helping enterprise teams turn AI adoption into measurable engineering results: improving productivity, reducing inefficiencies, and…” Source: RevenueBase Database · checked Sep 27, 2026
17	Indianic Infotech Limited	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 27, 2026	501-1,000	734 contacts →
	Indirect evidence “IndiaNIC is a leading AI development, premier machine learning solutions provider and Software Development Company, established in 1998 in Ahmedabad, India, with a continuously…” Source: RevenueBase Database · checked Sep 27, 2026
18	Elevenlabs	Indirect evidence	New York, United StatesHQ checked Sep 27, 2026	n/a	679 contacts →
	Indirect evidence “Research Lab.” Source: RevenueBase Database · checked Sep 27, 2026
19	Helsing	Indirect evidence	Munich, GermanyHQ checked Sep 27, 2026	1,001-5,000	612 contacts →
	Indirect evidence “Helsing was founded to provide Artificial Intelligence to protect our democracies.” Source: RevenueBase Database · checked Sep 27, 2026
20	Faculty	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	564 contacts →
	Indirect evidence “Founded in 2014, Faculty is one of Europe’s leading applied AI companies.” Source: RevenueBase Database · checked Sep 27, 2026
21	Woflow	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	n/a	533 contacts →
	Indirect evidence “Woflow builds AI Agents for enterprises.” Source: RevenueBase Database · checked Sep 27, 2026
22	Anaconda	Indirect evidence	Austin, TX, United StatesHQ checked Sep 27, 2026	201-500	525 contacts →
	Indirect evidence “Anaconda, the leader in advancing AI innovation, is the trusted foundation for AI-native development that empowers builders and enterprises to secure, orchestrate, and accelerate…” Source: RevenueBase Database · checked Sep 27, 2026
23	Applaudo	Indirect evidence	San Salvador, El SalvadorHQ checked Sep 27, 2026	501-1,000	498 contacts →
	Indirect evidence “2026 Google Cloud Public Sector Partner of the Year LATAM Applaudo is a nearshore AI-native partner helping ambitious enterprises transform through AI-first engineering and…” Source: RevenueBase Database · checked Sep 27, 2026
24	Instadeep	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	447 contacts →
	Indirect evidence “InstaDeep is a pioneer in decision-making AI, driven by the belief that AI can help everyone.” Source: RevenueBase Database · checked Sep 27, 2026
25	Digital Science	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	501-1,000	445 contacts →
	Indirect evidence “Digital Science is an AI-focused technology company providing innovative solutions to complex challenges faced by researchers, universities, funders, industry and publishers.” Source: RevenueBase Database · checked Sep 27, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: openai companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names openai companies.
Partial evidence: Its own public description names part of openai companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name openai companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 7,154 openai companies worldwide

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Openai companies worldwide at a glance

As of Sep 27, 2026

20.1%Verified-email coverage

20.0Average contacts per company

1-10Median size (employees)

3.6%Largest-city concentration · San Francisco

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

4,594

11-50

1,892

51-200

442

201-500

119

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among openai companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for openai companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “openai companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names openai companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among openai companies, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 28,754 across the full list. 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 September 27, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Openai companies by location

31 lists · largest first

Every Openai companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names openai companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many openai companies are there worldwide?

RevenueBase identified 7,154 openai companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Baidu, INC, headquartered in District, tops this list with the largest team on record.

Which country has the most openai companies?

The United States leads with 1,477 companies, followed by India (798) and the United Kingdom (325). Every openai companies list by country and city is linked on this page.

Which city has the most openai companies?

San Francisco leads with 258 headquartered companies, followed by London (235) and New York (125).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 28,754 verified decision-maker contacts tracked across these 7,154 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 27, 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 Smart Search, 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.