Company lists · Data verified August 2026

Top 25 AI api platform companies based in the United States

Name: AI api platform companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 1,429 companies tracked

There are 1,429 AI api platform companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 73,171 professional contacts across them, including 23,989 with verified work emails and 11,082 with mobile numbers. San Francisco is the largest hub.

This list covers AI api platform companies headquartered in the 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.

1,429Companies

73,171Contacts tracked

23,989Verified emails

11,082Mobile numbers

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The 25 largest AI api platform companies based in the United States

Ranked by team size

Top 25 of 1,429 AI api platform companies based in the 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	Publicis Sapient	Boston, MA	10001+	20,439	8,807
2	Turing	San Francisco, CA	1,001-5,000	5,900	1,102
3	Telus Digital AI Data Solutions	Las Vegas, NV	10001+	4,747	426
4	Compass UOL	Southlake, TX	5,001-10,000	4,657	1,396
5	Cloudfactory	Kenya	1,001-5,000	3,555	202
6	Outsystems	Boston, MA	1,001-5,000	1,968	1,193
7	Coreweave	New York, NY	1,001-5,000	1,833	1,201
8	Writer	San Francisco, CA	n/a	1,564	391
9	Dataiku	New York, NY	1,001-5,000	1,506	1,089
10	Cohere	San Francisco, CA	201-500	940	430
11	Airtable	San Francisco, CA	501-1,000	928	484
12	Omdena	New York, NY	201-500	519	9
13	Anaconda, INC	Austin, TX	201-500	516	374
14	Openxcell Next-Gen AI Services	Las Vegas, NV	201-500	492	66
15	Veritone	Denver, CO	501-1,000	443	247
16	OPKEY	Pittsburgh, PA	201-500	434	252
17	Tuya Smart	San Jose, CA	1,001-5,000	421	3
18	Sambanova	San Jose, CA	201-500	401	81
19	Datastax	Santa Clara, CA	501-1,000	394	141
20	h2o.ai	Mountain View, CA	201-500	387	192
21	Weights & Biases	San Francisco, CA	201-500	342	76
22	Techahead	Agoura Hills, CA	201-500	325	96
23	Absolutdata Analytics-An Infogain Company	Alameda, CA	201-500	317	78
24	Waterlabs AI	Wilmington, DE	201-500	313	31
25	Together AI	San Francisco, CA	201-500	292	192

Showing 25 of 1,429 AI api platform companies based in the United States

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AI api platform companies based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

San FranciscoLargest hub · 161 HQs

11,082Contacts with mobile numbers

122Emails re-verified in last 30 days

Companies by employee count

1-10

781

11-50

445

51-200

126

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

AI api platform companies by metro

Metro	Companies
AI api platform companies in San Francisco	161
AI api platform companies in New York	94
AI api platform companies in Austin	38
AI api platform companies in Los Angeles	35
AI api platform companies in Miami	32
AI api platform companies in Palo Alto	30
AI api platform companies in Dover	28

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 api platform companies”, with match quality audited by blind human judging, and headquartered in the 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; 122 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 api platform companies are there based in the United States?

There are 1,429 AI api platform companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Publicis Sapient, headquartered in Boston, tops this list with the largest team on record.

Which city has the most AI api platform companies?

San Francisco leads with 161 headquartered companies, followed by New York (94) and Austin (38).

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 23,989 verified decision-maker contacts tracked across these 1,429 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.