Company lists · Data refreshed September 2026
Top 25 Llm security testing firms worldwide
RevenueBase identified 650 company matches for llm security testing firms worldwide as of September 2026 and tracks 6,312 professional contacts across them, including 1,696 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for llm security testing firms 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 llm security testing firms 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.
The 25 largest llm security testing firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 374 contacts → | ||||
Exact match “At Resillion, we're more than just a global leader in quality engineering, testing, and cyber security – we're your dedicated partner from the start of your project to its…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 2 | 344 contacts → | ||||
Exact match “Bishop Fox is recognized as the leading authority in offensive security, providing solutions ranging from continuous penetration testing, red teaming, and attack surface…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 3 | 267 contacts → | ||||
Exact match “PortSwigger is a global leader in the creation of software tools for security testing of web applications.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 4 | 186 contacts → | ||||
Exact match “Kualitatem empowers businesses to deliver quality software.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 5 | 105 contacts → | ||||
Exact match “EncureIT System is primarily an Information Security Specialist Company that believes in delivering comprehensive professional security services to its clients.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 6 | 87 contacts → | ||||
Exact match “Software for Safe World"().” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 7 | 81 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 28, 2026 · View company records in RevenueBase | |||||
| 8 | 80 contacts → | ||||
Exact match “Since 2001, softScheck has been a prominent advocate for software security, dedicated to complying with ISO27034 and Microsoft Security Dev.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 9 | 67 contacts → | ||||
Exact match “As a, Bug Hunters helps organizations build secure, compliant, and high-quality digital products in an increasingly AI-driven world.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 10 | 66 contacts → | ||||
Exact match “LEXFO is an offensive security firm that assesses and strengthens your systems with an expert, pragmatic, results-driven approach.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 11 | 64 contacts → | ||||
Exact match “Packetlabs is CREST-accredited and SOC 2 Type II attested, demonstrating our commitment to security excellence.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 12 | 63 contacts → | ||||
Exact match “Entersoft Security is an AI-enabled cybersecurity services firm helping modern enterprises build, ship, and operate secure digital products at scale.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 13 | 61 contacts → | ||||
Exact match “MDSec are a UK based consultancy with a passion for information security.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 14 | 54 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 15 | 48 contacts → | ||||
Exact match “cyberSecurist is advanced security consulting company.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 16 | 48 contacts → | ||||
Exact match “Securitum is a leading European cybersecurity company specializing in penetration testing and IT security audits.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 17 | 44 contacts → | ||||
Exact match “Founded in 2010, Secure Ideas is a small-business consulting firm.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 18 | 44 contacts → | ||||
Exact match “BEAM Teknoloji is an Accredited Cyber Security Testing and Evaluation Laboratory established in 2011.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 19 | 43 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 | |||||
| 20 | 39 contacts → | ||||
Exact match “Anvil is an information security consulting firm focused on top tier consulting.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 21 | 38 contacts → | ||||
Exact match “GMO Flatt Security, based in Tokyo, offers expert security assessments and penetration testing for software.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 22 | 36 contacts → | ||||
Exact match “Founded in 2004, Secure Network offers specialized services to assess the security of your systems.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 23 | 34 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 | |||||
| 24 | 34 contacts → | ||||
Exact match “Cyberops is India’s leading organization in the field of Information security (VAPT).” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 25 | 31 contacts → | ||||
Exact match “With offices all over the United States and Canada, Atredis Partners was created by a number of security industry veterans who wanted to prioritize offering quality and client…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “llm security testing firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 650 llm security testing firms worldwide
See the full list, filter by size, metro and specialty, and access 1,696 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Llm security testing firms worldwide at a glance
As of Sep 28, 2026Companies by employee count
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 llm security testing firms are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “llm security testing firms” 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 1,696 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.
Llm security testing firms by location
3 lists · largest firstEvery Llm security testing firms 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 “llm security testing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many llm security testing firms are there worldwide?
RevenueBase identified 650 company matches for llm security testing firms 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?
Resillion tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most llm security testing firms?
The United States leads with 141 companies, followed by India (70) and the United Kingdom (48). Every llm security testing firms list by country and city is linked on this page.
Which city has the most llm security testing firms?
London leads with 24 company records, followed by Hyderabad (13) and San Francisco (8).
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 1,696 professional contacts with verified work emails tracked across these 650 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.
Ready to reach these companies? Verified emails and direct dials for all 650 llm security testing firms worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 llm security testing firms worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 650 matching company records for llm security testing firms worldwide, with 6,312 tracked contacts and 1,696 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 28, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 llm security testing firms worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Resillionresillion.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 374 contacts → |
“At Resillion, we're more than just a global leader in quality engineering, testing, and cyber security – we're your dedicated partner from the start of your project to its…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Bishop FOXbishopfox.comHQ: Tempe, AZ, United StatesReported employees: 201-500 | Tempe, AZ, United States | 201-500 | Exact match | 344 contacts → |
“Bishop Fox is recognized as the leading authority in offensive security, providing solutions ranging from continuous penetration testing, red teaming, and attack surface…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Portswiggerportswigger.netHQ: Knutsford, United KingdomReported employees: 51-200 | Knutsford, United Kingdom | 51-200 | Exact match | 267 contacts → |
“PortSwigger is a global leader in the creation of software tools for security testing of web applications.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Kualitatem INCkualitatem.comHQ: NY, United StatesReported employees: 201-500 | NY, United States | 201-500 | Exact match | 186 contacts → |
“Kualitatem empowers businesses to deliver quality software.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Encureit Systems Private Limitedencureit.comHQ: Pune, IndiaReported employees: 51-200 | Pune, India | 51-200 | Exact match | 105 contacts → |
“EncureIT System is primarily an Information Security Specialist Company that believes in delivering comprehensive professional security services to its clients.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  슈어소프트테크 Suresofttechsuresofttech.comHQ: 성남시, South KoreaReported employees: 201-500 | 성남시, South Korea | 201-500 | Exact match | 87 contacts → |
“Software for Safe World"().” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Ragaai INCraga.aiHQ: San Francisco Bay, CA, United StatesReported employees: 51-200 | San Francisco Bay, CA, United States | 51-200 | Exact match | 81 contacts → |
“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 description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Softscheck Apacsoftscheck-apac.comHQ: SingaporeReported employees: 51-200 | Singapore | 51-200 | Exact match | 80 contacts → |
“Since 2001, softScheck has been a prominent advocate for software security, dedicated to complying with ISO27034 and Microsoft Security Dev.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  BUG Huntersbughunters.ioHQ: Noida, IndiaReported employees: 51-200 | Noida, India | 51-200 | Exact match | 67 contacts → |
“As a, Bug Hunters helps organizations build secure, compliant, and high-quality digital products in an increasingly AI-driven world.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  LEXFOlexfo.frHQ: Paris, FranceReported employees: 51-200 | Paris, France | 51-200 | Exact match | 66 contacts → |
“LEXFO is an offensive security firm that assesses and strengthens your systems with an expert, pragmatic, results-driven approach.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Packetlabspacketlabs.netHQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 64 contacts → |
“Packetlabs is CREST-accredited and SOC 2 Type II attested, demonstrating our commitment to security excellence.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Entersoft Securityentersoft.com.auHQ: Brisbane, AustraliaReported employees: 51-200 | Brisbane, Australia | 51-200 | Exact match | 63 contacts → |
“Entersoft Security is an AI-enabled cybersecurity services firm helping modern enterprises build, ship, and operate secure digital products at scale.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  MDSECmdsec.co.ukHQ: Macclesfield, United KingdomReported employees: 11-50 | Macclesfield, United Kingdom | 11-50 | Exact match | 61 contacts → |
“MDSec are a UK based consultancy with a passion for information security.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  스틸리언 Stealienstealien.comHQ: 서울특별시, South KoreaReported employees: 51-200 | 서울특별시, South Korea | 51-200 | Exact match | 54 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 15 |  Cybersecurist Technologies Pvt. LTDcybersecurist.comHQ: Pune, IndiaReported employees: 11-50 | Pune, India | 11-50 | Exact match | 48 contacts → |
“cyberSecurist is advanced security consulting company.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Securitumsecuritum.comHQ: Kraków, PolandReported employees: 51-200 | Kraków, Poland | 51-200 | Exact match | 48 contacts → |
“Securitum is a leading European cybersecurity company specializing in penetration testing and IT security audits.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Secure Ideas, LLCsecureideas.comHQ: Jacksonville, FL, United StatesReported employees: 11-50 | Jacksonville, FL, United States | 11-50 | Exact match | 44 contacts → |
“Founded in 2010, Secure Ideas is a small-business consulting firm.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Beam Teknolojibeamteknoloji.comHQ: Ankara, TürkiyeReported employees: 11-50 | Ankara, Türkiye | 11-50 | Exact match | 44 contacts → |
“BEAM Teknoloji is an Accredited Cyber Security Testing and Evaluation Laboratory established in 2011.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Gray Swangrayswan.aiHQ: Pittsburgh, PA, United StatesReported employees: 11-50 | Pittsburgh, PA, United States | 11-50 | Exact match | 43 contacts → |
“Gray Swan AI is an AI safety and security company.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Anvil Secureanvilsecure.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 39 contacts → |
“Anvil is an information security consulting firm focused on top tier consulting.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  GMO Flatt Security INCflatt.techHQ: 渋谷区, JapanReported employees: Not recorded | 渋谷区, Japan | Not recorded | Exact match | 38 contacts → |
“GMO Flatt Security, based in Tokyo, offers expert security assessments and penetration testing for software.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Secure Networksecurenetwork.itHQ: Milan, ItalyReported employees: 11-50 | Milan, Italy | 11-50 | Exact match | 36 contacts → |
“Founded in 2004, Secure Network offers specialized services to assess the security of your systems.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Beyondscalebeyondscale.techHQ: Hyderabad, IndiaReported employees: 11-50 | Hyderabad, India | 11-50 | Exact match | 34 contacts → |
“AI is being deployed faster than it's being secured.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Cyberops Infosec LLPcyberops.inHQ: Jaipur, IndiaReported employees: 11-50 | Jaipur, India | 11-50 | Exact match | 34 contacts → |
“Cyberops is India’s leading organization in the field of Information security (VAPT).” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Atredis Partnersatredis.comHQ: All Over The Us, United StatesReported employees: 11-50 | All Over The Us, United States | 11-50 | Exact match | 31 contacts → |
“With offices all over the United States and Canada, Atredis Partners was created by a number of security industry veterans who wanted to prioritize offering quality and client…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 650 company matches
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Llm security testing firms: dataset insights
September 28, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
650 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 650 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 28, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Llm security testing firms by location
3 lists · largest firstEvery Llm security testing firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for llm security testing firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many llm security testing firms did RevenueBase find worldwide?
The saved snapshot records 650 matching company records, 6,312 tracked contacts and 1,696 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 28, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 llm security testing firms worldwide. Snapshot: September 28, 2026. https://revenuebase.ai/companies/browse/llm-security-testing-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 llm security testing firms worldwide
RevenueBase records 650 matching company records for llm security testing firms worldwide, with 6,312 tracked contacts and 1,696 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 28, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 llm security testing firms worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Resillionresillion.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 374 contacts → |
“At Resillion, we're more than just a global leader in quality engineering, testing, and cyber security – we're your dedicated partner from the start of your project to its…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Bishop FOXbishopfox.com HQ: Tempe, AZ, United StatesReported employees: 201-500 | Tempe, AZ, United States | 201-500 | Exact match | 344 contacts → |
“Bishop Fox is recognized as the leading authority in offensive security, providing solutions ranging from continuous penetration testing, red teaming, and attack surface…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Portswiggerportswigger.net HQ: Knutsford, United KingdomReported employees: 51-200 | Knutsford, United Kingdom | 51-200 | Exact match | 267 contacts → |
“PortSwigger is a global leader in the creation of software tools for security testing of web applications.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Kualitatem INCkualitatem.com HQ: NY, United StatesReported employees: 201-500 | NY, United States | 201-500 | Exact match | 186 contacts → |
“Kualitatem empowers businesses to deliver quality software.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Encureit Systems Private Limitedencureit.com HQ: Pune, IndiaReported employees: 51-200 | Pune, India | 51-200 | Exact match | 105 contacts → |
“EncureIT System is primarily an Information Security Specialist Company that believes in delivering comprehensive professional security services to its clients.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 슈어소프트테크 Suresofttechsuresofttech.com HQ: 성남시, South KoreaReported employees: 201-500 | 성남시, South Korea | 201-500 | Exact match | 87 contacts → |
“Software for Safe World"().” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Ragaai INCraga.ai HQ: San Francisco Bay, CA, United StatesReported employees: 51-200 | San Francisco Bay, CA, United States | 51-200 | Exact match | 81 contacts → |
“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 description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Softscheck Apacsoftscheck-apac.com HQ: SingaporeReported employees: 51-200 | Singapore | 51-200 | Exact match | 80 contacts → |
“Since 2001, softScheck has been a prominent advocate for software security, dedicated to complying with ISO27034 and Microsoft Security Dev.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | BUG Huntersbughunters.io HQ: Noida, IndiaReported employees: 51-200 | Noida, India | 51-200 | Exact match | 67 contacts → |
“As a, Bug Hunters helps organizations build secure, compliant, and high-quality digital products in an increasingly AI-driven world.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | LEXFOlexfo.fr HQ: Paris, FranceReported employees: 51-200 | Paris, France | 51-200 | Exact match | 66 contacts → |
“LEXFO is an offensive security firm that assesses and strengthens your systems with an expert, pragmatic, results-driven approach.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Packetlabspacketlabs.net HQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 64 contacts → |
“Packetlabs is CREST-accredited and SOC 2 Type II attested, demonstrating our commitment to security excellence.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Entersoft Securityentersoft.com.au HQ: Brisbane, AustraliaReported employees: 51-200 | Brisbane, Australia | 51-200 | Exact match | 63 contacts → |
“Entersoft Security is an AI-enabled cybersecurity services firm helping modern enterprises build, ship, and operate secure digital products at scale.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | MDSECmdsec.co.uk HQ: Macclesfield, United KingdomReported employees: 11-50 | Macclesfield, United Kingdom | 11-50 | Exact match | 61 contacts → |
“MDSec are a UK based consultancy with a passion for information security.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | 스틸리언 Stealienstealien.com HQ: 서울특별시, South KoreaReported employees: 51-200 | 서울특별시, South Korea | 51-200 | Exact match | 54 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 15 | Cybersecurist Technologies Pvt. LTDcybersecurist.com HQ: Pune, IndiaReported employees: 11-50 | Pune, India | 11-50 | Exact match | 48 contacts → |
“cyberSecurist is advanced security consulting company.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Securitumsecuritum.com HQ: Kraków, PolandReported employees: 51-200 | Kraków, Poland | 51-200 | Exact match | 48 contacts → |
“Securitum is a leading European cybersecurity company specializing in penetration testing and IT security audits.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Secure Ideas, LLCsecureideas.com HQ: Jacksonville, FL, United StatesReported employees: 11-50 | Jacksonville, FL, United States | 11-50 | Exact match | 44 contacts → |
“Founded in 2010, Secure Ideas is a small-business consulting firm.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Beam Teknolojibeamteknoloji.com HQ: Ankara, TürkiyeReported employees: 11-50 | Ankara, Türkiye | 11-50 | Exact match | 44 contacts → |
“BEAM Teknoloji is an Accredited Cyber Security Testing and Evaluation Laboratory established in 2011.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Gray Swangrayswan.ai HQ: Pittsburgh, PA, United StatesReported employees: 11-50 | Pittsburgh, PA, United States | 11-50 | Exact match | 43 contacts → |
“Gray Swan AI is an AI safety and security company.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Anvil Secureanvilsecure.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 39 contacts → |
“Anvil is an information security consulting firm focused on top tier consulting.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | GMO Flatt Security INCflatt.tech HQ: 渋谷区, JapanReported employees: Not recorded | 渋谷区, Japan | Not recorded | Exact match | 38 contacts → |
“GMO Flatt Security, based in Tokyo, offers expert security assessments and penetration testing for software.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Secure Networksecurenetwork.it HQ: Milan, ItalyReported employees: 11-50 | Milan, Italy | 11-50 | Exact match | 36 contacts → |
“Founded in 2004, Secure Network offers specialized services to assess the security of your systems.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Beyondscalebeyondscale.tech HQ: Hyderabad, IndiaReported employees: 11-50 | Hyderabad, India | 11-50 | Exact match | 34 contacts → |
“AI is being deployed faster than it's being secured.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Cyberops Infosec LLPcyberops.in HQ: Jaipur, IndiaReported employees: 11-50 | Jaipur, India | 11-50 | Exact match | 34 contacts → |
“Cyberops is India’s leading organization in the field of Information security (VAPT).” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Atredis Partnersatredis.com HQ: All Over The Us, United StatesReported employees: 11-50 | All Over The Us, United States | 11-50 | Exact match | 31 contacts → |
“With offices all over the United States and Canada, Atredis Partners was created by a number of security industry veterans who wanted to prioritize offering quality and client…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Llm security testing firms: dataset insights
September 28, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
650 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 650 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 28, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Llm security testing firms by location
3 lists · largest firstEvery Llm security testing firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for llm security testing firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many llm security testing firms did RevenueBase find worldwide?
The saved snapshot records 650 matching company records, 6,312 tracked contacts and 1,696 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 28, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 llm security testing firms worldwide. Snapshot: September 28, 2026. https://revenuebase.ai/companies/browse/llm-security-testing-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗