Company lists · Data verified August 2026

Top 25 AI and machine learning companies based in San Francisco, United States

Name: AI and machine learning companies based in San Francisco, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 609 companies tracked

There are 609 AI and machine learning companies headquartered in San Francisco, United States (RevenueBase, August 2026). RevenueBase tracks 27,043 professional contacts across them, including 6,144 with verified work emails and 3,751 with mobile numbers. New York is the largest hub.

This list covers AI and machine learning companies headquartered in San Francisco, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

609Companies

27,043Contacts tracked

6,144Verified emails

3,751Mobile numbers

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The 25 largest AI and machine learning companies based in San Francisco, United States

Ranked by team size

Top 25 of 609 AI and machine learning companies based in San Francisco, United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Scale AI	San Francisco, CA	n/a	5,971	1,071
2	Turing	San Francisco, CA	1,001-5,000	5,900	1,102
3	Celonis	San Francisco, CA	1,001-5,000	3,632	658
4	Writer	San Francisco, CA	n/a	1,564	391
5	SIGMA	San Francisco, CA	501-1,000	1,036	705
6	AI R Everymind	San Francisco, CA	501-1,000	485	103
7	Tools For Humanity	San Francisco	51-200	393	199
8	gooddata.ai	San Francisco, CA	201-500	275	149
9	Almawave	San Francisco, CA	201-500	253	164
10	VYRO	San Francisco	51-200	181	43
11	Klarity	San Francisco, CA	51-200	172	108
12	Arize AI	San Francisco, CA	51-200	157	108
13	Hebbia	San Francisco, CA	51-200	154	104
14	MERGE	San Francisco, CA	51-200	126	83
15	Intelygenz	San Francisco, CA	201-500	122	40
16	AZUMO	San Francisco, CA	201-500	122	15
17	Voltage Park	San Francisco, CA	51-200	91	71
18	Sepal AI	San Francisco	51-200	91	13
19	Invictus	San Francisco	51-200	88	19
20	smartcat.io	San Francisco, CA	51-200	84	55
21	Berribot	San Francisco, CA	51-200	81	5
22	Yellow Systems	San Francisco, CA	51-200	73	22
23	Stackai	San Francisco, CA	51-200	67	37
24	Metaview	San Francisco, CA	51-200	67	34
25	INTUZ	San Francisco, CA	51-200	67	3

Showing 25 of 609 AI and machine learning companies based in San Francisco, United States

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AI and machine learning companies based in San Francisco, United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 668 HQs

3,751Contacts with mobile numbers

41Emails re-verified in last 30 days

Companies by employee count

1-10

357

11-50

182

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

AI and machine learning companies by metro in the United States

Metro	Companies
AI and machine learning companies in New York	668
AI and machine learning companies in San Francisco	609
AI and machine learning companies in Austin	352
AI and machine learning companies in Miami	239
AI and machine learning companies in Los Angeles	232
AI and machine learning companies in Chicago	211
AI and machine learning companies in Dallas	177

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “AI and machine learning companies”, with match quality audited by blind human judging, and headquartered in San Francisco, United States.
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: Contact records re-verify on a rolling cadence; 41 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many AI and machine learning companies are there based in San Francisco, United States?

There are 609 AI and machine learning companies headquartered in San Francisco, United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Scale AI, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most AI and machine learning companies?

New York leads with 668 headquartered companies, followed by San Francisco (609) and Austin (352).

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 6,144 verified decision-maker contacts tracked across these 609 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.