Company lists · Data refreshed August 2026

Top 21 Artificial intelligence quality companies based in San Francisco, United States

RevenueBase identified 62 artificial intelligence quality companies headquartered in San Francisco, United States as of August 2026 and tracks 931 professional contacts across them, including 204 with verified work emails and 134 with mobile numbers. San Francisco is the largest hub.

This list covers artificial intelligence quality 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. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed August 31, 2026.

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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review
62Companies
931Contacts tracked
204Verified emails
134Mobile numbers
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The 21 largest artificial intelligence quality companies based in San Francisco, United States

Ranked by team size
Top 21 of 62 artificial intelligence quality companies based in San Francisco, United States, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to artificial intelligence quality 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSan Francisco, CA, United States11-50122 contacts →

Indirect evidence

“Automate your e2e tests without the time-consuming drudgery of test maintenance.”

Source: RevenueBase Database · checked Aug 31, 2026
2Partial evidenceSan Francisco, CA, United States51-20098 contacts →

Partial evidence

“AI platform for Quality Engineering”

Source: RevenueBase Database · checked Aug 31, 2026
3Strong evidenceSan Francisco, CA, United States51-20065 contacts →

Strong evidence

“unitQ is the AI quality intelligence platform that unifies every customer signal into one system, connects it to your most critical business metrics, and tells every team exactly…”

Source: RevenueBase Database · checked Aug 31, 2026
4Indirect evidenceSan Francisco, CA, United States51-20049 contacts →

Indirect evidence

“Fractional AI is focused on putting frontier AI to work.”

Source: RevenueBase Database · checked Aug 31, 2026
5Indirect evidenceSan Francisco, CA, United States51-20042 contacts →

Indirect evidence

“We are a leading AI research and development company in Ukraine.”

Source: RevenueBase Database · checked Aug 31, 2026
6Indirect evidenceSan Francisco, CA, United States11-5033 contacts →

Indirect evidence

“At It-Jim, we turn visual, audio, and text data into actionable insights.”

Source: RevenueBase Database · checked Aug 31, 2026
7Indirect evidenceSan Francisco, CA, United States51-20029 contacts →

Indirect evidence

“Technical hiring is broken.”

Source: RevenueBase Database · checked Aug 31, 2026
8Partial evidenceSan Francisco, CA, United States11-5027 contacts →

Partial evidence

“Checksum is the continuous quality platform for engineering teams shipping AI-generated code.”

Source: RevenueBase Database · checked Aug 31, 2026
9Indirect evidenceSan Francisco, CA, United States11-5025 contacts →

Indirect evidence

“Creating software products is an art.”

Source: RevenueBase Database · checked Aug 31, 2026
10Partial evidenceSan Francisco, CA, United States51-20023 contacts →

Partial evidence

“PrimeQA, a proud member of NASSCOM and recognized by Startup India, is one of the global leaders in Quality Assurance and Testing.”

Source: RevenueBase Database · checked Aug 31, 2026
11Partial evidenceSan Francisco, CA, United States11-5015 contacts →

Partial evidence

“Solidroad is the leading AI-native quality assurance and training platform, built for modern customer support teams.”

Source: RevenueBase Database · checked Aug 31, 2026
12Indirect evidenceSan Francisco, United States11-5015 contacts →

Indirect evidence

“Coval accelerates AI agent development with automated testing for chat, voice, and other objective-oriented systems.”

Source: RevenueBase Database · checked Aug 31, 2026
13Indirect evidenceSan Francisco, CA, United States1-109 contacts →

Indirect evidence

“Heal.dev is an AI-powered QA engineer that writes, maintains & analyses hundreds of end-to-end tests.”

Source: RevenueBase Database · checked Aug 31, 2026
14Strong evidenceSan Francisco, CA, United States1-108 contacts →

Strong evidence

“SowFin is revolutionizing investment due diligence through artificial intelligence.”

Source: RevenueBase Database · checked Aug 31, 2026
15Indirect evidenceSan Francisco, CA, United States11-506 contacts →

Indirect evidence

“Isoform is bringing bespoke software to companies of all sizes.”

Source: RevenueBase Database · checked Aug 31, 2026
16Partial evidenceSan Francisco, CA, United States11-506 contacts →

Partial evidence

“Confident AI an AI quality platform and is the easiest way for any organization to build reliable AI.”

Source: RevenueBase Database · checked Aug 31, 2026
17Indirect evidenceSan Francisco, United States11-505 contacts →

Indirect evidence

“Established in 2022 • Clutch TOP Generative AI Company Worldwide 2023, 2024 • Vendorland TOP AI Consulting Company 2025 • 20+ AI projects delivered • 10+ customers • 8 countries…”

Source: RevenueBase Database · checked Aug 31, 2026
18Indirect evidenceSan Francisco, CA, United States1-105 contacts →

Indirect evidence

“Marketrix AI is a persona-driven autonomous QA and user validation platform that simulates real user behavior to test, validate, and improve your software - without manual test…”

Source: RevenueBase Database · checked Aug 31, 2026
19Indirect evidenceSan Francisco, CA, United States11-504 contacts →

Indirect evidence

“At Arkoz, we believe in the transformative power of AI and are dedicated to pioneering cutting-edge solutions that push the boundaries of what is possible.”

Source: RevenueBase Database · checked Aug 31, 2026
20Indirect evidenceSan Francisco, CA, United States11-502 contacts →

Indirect evidence

“We help businesses accelerate their ROI from AI.”

Source: RevenueBase Database · checked Aug 31, 2026
21Indirect evidenceSan Francisco, CA, United States1-101 contacts →

Indirect evidence

“Bytesalt is an AI QA teammate that reduces weeks of human testing to minutes.”

Source: RevenueBase Database · checked Aug 31, 2026

Showing 21 of 62 artificial intelligence quality companies based in San Francisco, United States

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Artificial intelligence quality companies based in San Francisco, United States at a glance

As of Aug 31, 2026
21.9%Verified-email coverage
14.4%Mobile-number coverage
15.0Average contacts per company
11-50Median size (employees)
54.8%Largest-city concentration · San Francisco
Aug 31, 2026Page data refreshed

Companies by employee count

1-10
29
11-50
22
51-200
11

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 artificial intelligence quality 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.
What qualifies
Companies headquartered in San Francisco, United States whose own description of what they do matches “artificial intelligence quality 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 artificial intelligence quality 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 artificial intelligence quality companies, and records with no verified work email. Companies headquartered outside San Francisco are excluded even when they keep an office there.
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, 204 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 August 31, 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.

Artificial intelligence quality companies by metro in the United States

  • Artificial intelligence quality companies in San Francisco34

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 artificial intelligence quality 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 artificial intelligence quality companies are there based in San Francisco, United States?

RevenueBase identified 62 artificial intelligence quality companies headquartered in San Francisco, United States as of August 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?

Rainforest QA, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most artificial intelligence quality companies?

San Francisco leads with 34 headquartered companies, followed by New York (18) and Austin (14).

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 204 verified decision-maker contacts tracked across these 62 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.