Company lists · Data refreshed November 2026

Top 22 Large language model safety companies worldwide

RevenueBase identified 131 company matches for large language model safety companies worldwide as of November 2026 and tracks 1,102 professional contacts across them, including 353 with verified work emails. The United States is the largest market and San Francisco the largest hub.

This list covers company matches for large language model safety companies worldwide, 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 November 6, 2026. Country and city lists for large language model safety companies follow the table.

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 Nov 6, 2026 How this list was built
131Companies
1,102Contacts tracked
353Verified emails
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The 22 largest large language model safety companies worldwide

Ranked by team size
Top 22 of 131 company matches for large language model safety companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchPalo Alto, CA, United StatesHQ recorded Nov 6, 202651-200344 contacts →

Exact match

“Hippocratic AI has developed a safety-focused Large Language Model (LLM) for healthcare.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchPittsburgh, PA, United StatesHQ recorded Nov 6, 202611-5076 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5040 contacts →

Exact match

“Apollo Research is an AI safety organization.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“Polygraf AI redefines AI security for critical operations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 20261-1023 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBangalore, IndiaHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“H2LooP is an AI lab building domain-specific intelligence for system software engineering.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchRedwood Shores, CA, United StatesHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Tumeryk is a security and governance platform designed for managing Agentic AI infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchUnited StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Ovalix empowers organizations to confidently embrace AI technology by mitigating associated risks such as data leakage, malicious prompts, shadow AI, and regulatory non-compliance…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchNoida, IndiaHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“LLUMO AI is the leading platform for debugging and ensuring the reliability of Agentic AI systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchUnited StatesHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Evaluation for LLM-Based Apps Release high-quality LLM apps quickly without compromising on testing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchUnited StatesHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Humane Intelligence is a 501(c)(3) nonprofit dedicated to breaking down barriers to AI deployment for social good.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Humanloop is the LLM evals platform for enterprises.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchToronto, ON, CanadaHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“We accelerate business outcome through Research based and Responsible AI and Generative AI solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchUnited StatesHQ recorded Nov 6, 20261-109 contacts →

Exact match

“We are a remote team writing technical standards for AI risk management - especially from Foundation Model and LLMs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchFrankfurt, GermanyHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Mit den neuen Möglichkeiten der generativen KI entstehen auch neue Herausforderungen hinsichtlich der Absicherung von Softwarelösungen gegen gezielte Angriffe und…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchCarlsbad, CA, United StatesHQ recorded Nov 6, 202611-506 contacts →

Exact match

“backplain is the first SaaS platform providing AI controls to fully support useability, trust, risk, and security management of LLM models, such GPT-3 and GPT-4 accessed through…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchPotsdam, GermanyHQ recorded Nov 6, 20261-106 contacts →

Exact match

“The open-source collaboration layer that gets domain-expert knowledge into AI agent development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchNew York, NY, United StatesHQ recorded Nov 6, 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 · Nov 6, 2026 · View company records in RevenueBase
19Exact matchCentral, Hong KongHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Stellaris AI is a cutting-edge pioneer in Artificial General Intelligence (AGI), focused on the training, infrastructure, and real-world deployment of large language models (LLMs).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 20261-103 contacts →

Exact match

“AI systems (LLMs) are effective for low-stakes use cases, for consumers especially.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSan Francisco, United StatesHQ recorded Nov 6, 20261-103 contacts →

Exact match

“A collaborative AI observability platform.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchWarsaw, PolandHQ recorded Nov 6, 20261-102 contacts →

Exact match

“GovernedAI to zespół ludzi skoncentrowanych na etycznym, bezpiecznym i efektywnym wykorzystaniu sztucznej inteligencji (AI).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 22 of 131 large language model safety companies worldwide

See the full list, filter by size, metro and specialty, and access 353 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Large language model safety companies worldwide at a glance

As of Nov 6, 2026
32.0%Verified-email coverage
8.4Average contacts per company
1-10Median size (employees)
6.1%Largest-city concentration · San Francisco
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
93
11-50
32
51-200
5

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for large language model safety companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “large language model safety companies” 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. 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 353 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 November 6, 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.

Large language model safety companies by location

1 lists · largest first

Every Large language model safety companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “large language model safety companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many large language model safety companies are there worldwide?

RevenueBase identified 131 company matches for large language model safety companies worldwide as of November 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?

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

Which country has the most large language model safety companies?

The United States leads with 43 companies. Every large language model safety companies list by country and city is linked on this page.

Which city has the most large language model safety companies?

San Francisco leads with 8 company records, followed by London (6) and New York (5).

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 353 professional contacts with verified work emails tracked across these 131 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 November 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 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.