Company lists · Data refreshed September 2026

Top 24 AI safety testing platforms based in the United States

RevenueBase identified 88 company matches for AI safety testing platforms associated with the United States as of September 2026 and tracks 731 professional contacts across them, including 215 with verified work emails. San Francisco is the largest hub.

This list covers company matches for AI safety testing platforms associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 27, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Sep 27, 2026 How this list was built
88Companies
731Contacts tracked
215Verified emails
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The 24 largest AI safety testing platforms based in the United States

Ranked by team size
Top 24 of 88 company matches for AI safety testing platforms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSan Francisco Bay, CA, United StatesHQ recorded Sep 27, 202651-20081 contacts →

Exact match

“RagaAI builds AI agents for healthcare and clinical research, taking the manual, repetitive work off teams so they can focus on patients and outcomes.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchMadison, WI, United StatesHQ recorded Sep 27, 2026n/a52 contacts →

Exact match

“Our modern world is the product of technological advancement.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchBerkeley, CA, United StatesHQ recorded Sep 27, 202611-5045 contacts →

Exact match

“METR is a research non-profit that develops evaluations to empirically test AI systems for capabilities that could threaten catastrophic harm to society.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchPittsburgh, PA, United StatesHQ recorded Sep 27, 202611-5043 contacts →

Exact match

“Gray Swan AI is an AI safety and security company.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchBerkeley, CA, United StatesHQ recorded Sep 27, 202611-5038 contacts →

Exact match

“FAR.AI is a technical AI research and education non-profit, dedicated to ensuring the safe development and deployment of frontier AI systems.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5028 contacts →

Exact match

“Cleanlab solves the biggest challenge in AI agents: reliability.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202611-5026 contacts →

Exact match

“Trusted by Fortune 100s, Arthur enables you to discover every agent, enforce policies at scale, and ship reliable AI across ML, GenAI, and agentic systems.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchWashington, DC, United StatesHQ recorded Sep 27, 202651-20024 contacts →

Exact match

“As artificial intelligence continues to revolutionize industries and become increasingly prevalent in day-to-day use, the associated risks also rise.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchBerkeley, CA, United StatesHQ recorded Sep 27, 202611-5019 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5019 contacts →

Exact match

“Promptfoo is the leading open-core platform for AI application security, enabling enterprises to identify and remediate vulnerabilities in LLMs, RAG systems, and AI agents before…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 20261-1019 contacts →

Exact match

“Transluce is an independent research lab that builds open, scalable technology for understanding AI systems and steering them in the public interest.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202611-5018 contacts →

Exact match

“Arklex is building a platform for AI agent readiness.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202611-5014 contacts →

Exact match

“Your AI is your responsibility.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchSunnyvale, CA, United StatesHQ recorded Sep 27, 202611-508 contacts →

Exact match

“The Runtime AI Observability and Control platform for the modern enterprise.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202611-507 contacts →

Exact match

“Plurai is the Reliability Platform for AI agents.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchNew York, NY, United StatesHQ recorded Sep 27, 20261-106 contacts →

Exact match

“Validia is an AI company focused on making AI systems safer and more transparent.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-506 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchWest Haven, CT, United StatesHQ recorded Sep 27, 202611-506 contacts →

Exact match

“The Secure and Assured Intelligent Learning (SAIL) lab works towards laying concrete foundations for the safety and security of intelligent machines with both theoretical and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchBrickell, FL, United StatesHQ recorded Sep 27, 20261-105 contacts →

Exact match

“Quantum Falcon is a purpose-built platform for protecting AI agents.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchTakoma Park, MD, United StatesHQ recorded Sep 27, 20261-103 contacts →

Exact match

“Embedded Intelligence (EI), headquartered in the Washington DC area, is a leading-edge R&D company whose mission is to enhance the safety and security of AI-enabled systems.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchCambridge, MA, United StatesHQ recorded Sep 27, 20261-102 contacts →

Exact match

“Sensepoint is a new kind of Gen3 AI that assesses the warranted confidence of your existing Gen2 AI/ML applications and can formulate and execute plans to improve them in…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchSt. Louis, MO, United StatesHQ recorded Sep 27, 20261-102 contacts →

Exact match

“We bring Artificial Intelligence (AI) to sectors where it has been historically ineffective or dangerous.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchCharlotte, NC, United StatesHQ recorded Sep 27, 20261-102 contacts →

Exact match

“The Rehearsal Studio for AI Agents”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchScottsdale, AZ, United StatesHQ recorded Sep 27, 20261-101 contacts →

Exact match

“Hypergame builds Mirror Matrix, cognitive maneuver infrastructure for evaluating frontier AI systems that learn faster than they're tested.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 24 of 88 AI safety testing platforms based in the United States

See the full list, filter by size, metro and specialty, and access 215 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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AI safety testing platforms based in the United States at a glance

As of Sep 27, 2026
29.4%Verified-email coverage
8.3Average contacts per company
1-10Median size (employees)
20.5%Largest-city concentration · San Francisco
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
59
11-50
26
51-200
3

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 88 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “AI safety testing platforms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 215 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “AI safety testing platforms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many AI safety testing platforms are there based in the United States?

RevenueBase identified 88 company matches for AI safety testing platforms associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Ragaai INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most AI safety testing platforms?

San Francisco leads with 18 company records, followed by New York (10) and Miami (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 215 professional contacts with verified work emails tracked across these 88 companies; direct dials are available where recorded.

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 SmartSearch, 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.