Company lists · Data refreshed September 2026

Top 19 Sovereign AI companies based in San Francisco, United States

RevenueBase identified 67 sovereign AI companies headquartered in San Francisco, United States as of September 2026 and tracks 7,311 professional contacts across them, including 1,422 with verified work emails. San Francisco is the largest hub.

This list covers sovereign AI 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 September 6, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 6, 2026 86% judged on-target in blind review
67Companies
7,311Contacts tracked
1,422Verified emails
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The 19 largest sovereign AI companies based in San Francisco, United States

Ranked by team size
Top 19 of 67 sovereign AI companies based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to sovereign AI 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
1Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 2026n/a6,133 contacts →

“Scale’s mission is to develop reliable AI systems for the world’s most important decisions.”

Source: company website · checked Sep 6, 2026
2Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202651-200137 contacts →

“Primer exists to make the world a safer place.”

Source: company website · checked Sep 6, 2026
3Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202651-200126 contacts →

“Based in San Francisco CA, Cobalt AI was founded in 2016 on a mission to drive behavioral change to increase physical security in organizations to improve the ability to detect…”

Source: company website · checked Sep 6, 2026
4Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202611-5069 contacts →

“Holistic AI is the control layer for enterprise AI.”

Source: company website · checked Sep 6, 2026
5Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202651-20068 contacts →

“Zignal delivers AI and agentic intelligence for national security, enabling earlier warning and sustained decision advantage across complex missions.”

Source: company website · checked Sep 6, 2026
6Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202651-20050 contacts →

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

Source: company website · checked Sep 6, 2026
7Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202611-5037 contacts →

AI is driving a massive platform shift, but like every major shift (PC, mobile, cloud), it demands a trust layer upgrade.”

Source: company website · checked Sep 6, 2026
8Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202611-5037 contacts →

“SimplAI is a full-stack Agentic AI Operating System built for enterprises that need to move beyond isolated LLM experiments and deploy AI that actually runs production workflows.”

Source: company website · checked Sep 6, 2026
9Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202611-5033 contacts →

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

Source: company website · checked Sep 6, 2026
10Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202611-5028 contacts →

“RAD Security is the creator of Agentkeeper, an AI Governance Platform allowing you to secure autonomous agents.”

Source: company website · checked Sep 6, 2026
11Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202651-20026 contacts →

“Turium offers the world's first secure, private, and the most powerful version of Enterprise AI.”

Source: company website · checked Sep 6, 2026
12Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202651-20021 contacts →

“Shelton AI is a leading global provider of artificial intelligence to Sovereign Wealth Funds & Asset Managers.”

Source: company website · checked Sep 6, 2026
13Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202611-5011 contacts →

“8iSoft, established in 2020, specializes in AI-driven software solutions, focusing on cybersecurity with our YODA Vulnerability Remediation Platform and optimizing resources…”

Source: company website · checked Sep 6, 2026
14Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 20261-107 contacts →

“ErisAI is an Applied AI Research and Deployment Company building intelligent systems for real-world enterprise and government environments.”

Source: company website · checked Sep 6, 2026
15Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202611-506 contacts →

“nFactor harnesses AI to enhance enterprise security, offering secure and responsible applications.”

Source: company website · checked Sep 6, 2026
16Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 20261-105 contacts →

“At Chima, we're building autonomous intelligence that operates continuously.”

Source: company website · checked Sep 6, 2026
17Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202611-505 contacts →

“Your trading partners are about to start transacting through agents.”

Source: company website · checked Sep 6, 2026
18Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 20261-102 contacts →

“We enable AI at scale.”

Source: company website · checked Sep 6, 2026
19Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202611-501 contacts →

“OoBA’s, mission is to build a future where harnessing the power of AI across enterprises becomes as simple as search.”

Source: company website · checked Sep 6, 2026

Showing 19 of 67 sovereign AI companies based in San Francisco, United States

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Sovereign AI companies based in San Francisco, United States at a glance

As of Sep 6, 2026
19.5%Verified-email coverage
109.1Average contacts per company
11-50Median size (employees)
100.0%Largest-city concentration · San Francisco
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
28
11-50
26
51-200
12
501-1,000
1

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 67 companies.

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 sovereign AI 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 “sovereign AI 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 sovereign AI 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 sovereign AI 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, 1,422 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 6, 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.

Sovereign AI companies by metro in the United States

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 sovereign AI 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 sovereign AI companies are there based in San Francisco, United States?

RevenueBase identified 67 sovereign AI companies headquartered in San Francisco, United States 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?

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

Which city has the most sovereign AI companies?

San Francisco leads with 67 headquartered companies, followed by New York (54) and Austin (33).

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 1,422 verified decision-maker contacts tracked across these 67 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 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 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.