Company lists · Data refreshed September 2026

Top 25 Large language model security companies worldwide

RevenueBase identified 368 company matches for large language model security companies worldwide as of September 2026 and tracks 4,195 professional contacts across them, including 1,275 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 security 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 September 28, 2026. Country and city lists for large language model security 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 Sep 28, 2026 How this list was built
368Companies
4,195Contacts tracked
1,275Verified emails
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The 25 largest large language model security companies worldwide

Ranked by team size
Top 25 of 368 company matches for large language model security companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 matchTel-aviv, IsraelHQ recorded Sep 28, 2026201-500224 contacts →

Exact match

“Every nation has data.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchMiami, FL, United StatesHQ recorded Sep 28, 202651-200184 contacts →

Exact match

“In regulated industries, AI rarely fails because the model isn't smart enough, it fails because it can't be governed.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchNew York, NY, United StatesHQ recorded Sep 28, 202651-200168 contacts →

Exact match

“OX Security removes risk at the source - eliminating exposures from AI code generation through cloud runtime - preventing security debt before it ever reaches production.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchNew York, NY, United StatesHQ recorded Sep 28, 202651-200152 contacts →

Exact match

“Cycode is the leader in Agentic Development Security that secures AI development from prompt to runtime.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchNew York, United StatesHQ recorded Sep 28, 202651-200117 contacts →

Exact match

“Secure the ecosystem.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchSan Jose, TX, United StatesHQ recorded Sep 28, 2026201-500113 contacts →

Exact match

“Innovate Fearlessly, Protect Relentlessly." St.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchNew York, NY, United StatesHQ recorded Sep 28, 202651-20086 contacts →

Exact match

“Noma Security is the agentic AI security platform giving enterprise organizations the confidence to rapidly build AI applications and adopt AI agents at scale.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchZurich, SwitzerlandHQ recorded Sep 28, 202611-5077 contacts →

Exact match

“At Lakera, we are securing the future of intelligent computing.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchSan Francisco Bay, CA, United StatesHQ recorded Sep 28, 202651-20073 contacts →

Exact match

“Datasaur builds and deploys Private AI for organizations that can't send their data to someone else's cloud, banks, hospitals, government agencies, and enterprises handling…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchLos Angeles, United StatesHQ recorded Sep 28, 202651-20055 contacts →

Exact match

“Founded in 2018, we're an AI company focused on post-training optimization, local-language reasoning models, and sovereign AI infrastructure.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchSan Francisco, CA, United StatesHQ recorded Sep 28, 202651-20054 contacts →

Exact match

“AI is being run everywhere, by humans and agents.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 202651-20054 contacts →

Exact match

“Dropzone AI weaponizes LLMs for cyber defenders, delivering the Agentic SOC: AI agents that collaborate 24/7 to beat attackers at scale.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchPittsburgh, PA, United StatesHQ recorded Sep 28, 202611-5043 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchUnited StatesHQ recorded Sep 28, 202611-5038 contacts →

Exact match

“Atolio is how enterprises use LLMs to find answers privately and securely - the foundational AI solution for safely making knowledge useful and accessible.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchTel-aviv, IsraelHQ recorded Sep 28, 202611-5037 contacts →

Exact match

“DeepKeep delivers end-to-end AI security and trustworthiness across the full AI lifecycle.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchTel-aviv, IsraelHQ recorded Sep 28, 202611-5036 contacts →

Exact match

“Backslash Security - Agentic AI endpoints.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchHyderabad, IndiaHQ recorded Sep 28, 202611-5034 contacts →

Exact match

“AI is being deployed faster than it's being secured.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchSan Francisco, CA, United StatesHQ recorded Sep 28, 202611-5033 contacts →

Exact match

“Akto is the fastest growing AI Security platform for your teams to secure AI agents, MCPs, LLMs, Agent skills, gen AI apps in your organization.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact match서울시, South KoreaHQ recorded Sep 28, 202611-5031 contacts →

Exact match

“AI agents are making decisions, calling APIs, and taking actions, with no one watching.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchHerndon, VA, United StatesHQ recorded Sep 28, 202611-5031 contacts →

Exact match

“Knostic is the world’s first provider of need-to-know based access controls for LLMs.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchAustin, TX, United StatesHQ recorded Sep 28, 202611-5030 contacts →

Exact match

“Polygraf AI redefines AI security for critical operations.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchPalo Alto, CA, United StatesHQ recorded Sep 28, 202611-5030 contacts →

Exact match

“The Mammoth Cyber Enterprise AI Browser is built to do more than just enable access-it’s designed to secure how enterprises interact with applications and LLMs.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchPalo Alto, CA, United StatesHQ recorded Sep 28, 202611-5029 contacts →

Exact match

“Pangea's AI Security Platform empowers security teams to secure AI from cloud to code.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchSan Francisco, CA, United StatesHQ recorded Sep 28, 202611-5028 contacts →

Exact match

“Virtue AI sets the standard for advanced AI security platforms.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchSaint John, NB, CanadaHQ recorded Sep 28, 202611-5027 contacts →

Exact match

“Securing AI Models, Applications, and Agents from Development to Deployment TrojAI helps the world’s leading enterprises secure the behavior of their AI/ML and GenAI models…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 368 large language model security companies worldwide

See the full list, filter by size, metro and specialty, and access 1,275 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Large language model security companies worldwide at a glance

As of Sep 28, 2026
30.4%Verified-email coverage
11.4Average contacts per company
1-10Median size (employees)
7.1%Largest-city concentration · San Francisco
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
217
11-50
114
51-200
32
201-500
4

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 security companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “large language model security 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 1,275 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 28, 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 security companies by location

2 lists · largest first

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

Countries

Cities

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 security companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many large language model security companies are there worldwide?

RevenueBase identified 368 company matches for large language model security companies worldwide 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?

DREAM 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 security companies?

The United States leads with 146 companies. Every large language model security companies list by country and city is linked on this page.

Which city has the most large language model security companies?

San Francisco leads with 26 company records, followed by London (15) and New York (12).

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 1,275 professional contacts with verified work emails tracked across these 368 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 28, 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.