Company lists · Data refreshed November 2026

Top 25 Security auditing firms worldwide

RevenueBase identified 2,760 company matches for security auditing firms worldwide as of November 2026 and tracks 25,802 professional contacts across them, including 6,561 with verified work emails. The United States is the largest market and Paris the largest hub.

This list covers company matches for security auditing 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 November 5, 2026. Country and city lists for security auditing 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
2,760Companies
25,802Contacts tracked
6,561Verified emails
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The 25 largest security auditing firms worldwide

Ranked by team size
Top 25 of 2,760 company matches for security auditing firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchLondon, United KingdomHQ recorded Nov 5, 2026n/a782 contacts →

Exact match

“Get a free, powerful security assessment with personalised recommendations, the same analysis that costs from IT Consultancies.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchGurgaon, IndiaHQ recorded Nov 5, 2026201-500385 contacts →

Exact match

“eSec Forte® Technologies is a CMMi Level 3 certified Global Consulting and IT Security Services company with offerings across Cloud Security, Cyber Forensics, Malware Detection…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchBrussels, BelgiumHQ recorded Nov 5, 2026201-500341 contacts →

Exact match

“NVISO is a cyber security services firm composed of outstanding security professionals - each has a specific field of expertise, ranging from security research and risk management…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchNashville, TN, United StatesHQ recorded Nov 5, 2026201-500317 contacts →

Exact match

“Prescient Security is a global cybersecurity and compliance firm delivering risk-based audits, advanced penetration testing, and end-to-end framework support.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026201-500244 contacts →

Exact match

“Thoropass is the only end-to-end cybersecurity auditor.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchCedar Hill, TX, United StatesHQ recorded Nov 5, 2026201-500243 contacts →

Exact match

“Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchBangalore, IndiaHQ recorded Nov 5, 202651-200215 contacts →

Exact match

“CYRAAC Services Private Limited (CyRAACS) is a leading, technology-first cybersecurity consulting and advisory firm headquartered in India, empanelled with CERT-In and accredited…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchTampa, United StatesHQ recorded Nov 5, 2026201-500201 contacts →

Exact match

“Insight Assurance is a security and compliance firm trusted by more than 1,500 organizations for their SOC 1, SOC 2, SOC 3, PCI DSS, ISO 27001, ISO 27017/27018, ISO 27701, ISO…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchTel Aviv, IsraelHQ recorded Nov 5, 202651-200198 contacts →

Exact match

“2Bsecure Ltd.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchChantilly, United StatesHQ recorded Nov 5, 20261,001-5,000194 contacts →

Exact match

“Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchParis, FranceHQ recorded Nov 5, 2026201-500185 contacts →

Exact match

“Synacktiv is an offensive security company founded in 2012 by several security experts.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchReston, VA, United StatesHQ recorded Nov 5, 20261,001-5,000180 contacts →

Exact match

“MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchRehovot, IsraelHQ recorded Nov 5, 202651-200157 contacts →

Exact match

“Citadel is an Information Security Consulting company.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchLas Rozas De Madrid, SpainHQ recorded Nov 5, 202651-200157 contacts →

Exact match

“Secure & IT es una empresa especializada en seguridad de la información que trabaja en cinco líneas: compliance, procesos y gobierno IT, sistemas y seguridad IT, seguridad…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchTallinn City, EstoniaHQ recorded Nov 5, 202651-200153 contacts →

Exact match

“Hacken is an end-to-end blockchain security and compliance partner for digital assets.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchTel-aviv, IsraelHQ recorded Nov 5, 202651-200149 contacts →

Exact match

“Comsec is a leading global cybersecurity consultancy.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchNashville, TN, United StatesHQ recorded Nov 5, 202651-200141 contacts →

Exact match

“KirkpatrickPrice is a licensed information security CPA firm, a PCI QSA, and a HITRUST CSF Assessor, providing assurance services to over clients worldwide.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchSt Petersburg, FL, RussiaHQ recorded Nov 5, 202651-200139 contacts →

Exact match

“360 Advanced is a relationship-focused cybersecurity and compliance firm offering security, privacy and compliance-oriented solutions customized to meet your organization and your…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchFareham, United KingdomHQ recorded Nov 5, 202651-200129 contacts →

Exact match

“Relax.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchParis, FranceHQ recorded Nov 5, 202651-200129 contacts →

Exact match

“Our services : Penetration tests and Security Audits, Gap Analysis and PCI DSS Certification, CERT-XMCO (vulnerability watch, Cyber Survellance/Threat Intelligence, Forensics).”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchMission Viejo, CA, United StatesHQ recorded Nov 5, 2026201-500127 contacts →

Exact match

“Varutra Consulting, an InfoShare company, is a globally recognized cybersecurity firm delivering cutting-edge solutions in Cloud Security, Mobile Security, Application Security…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchAlexandria, VA, United StatesHQ recorded Nov 5, 2026n/a122 contacts →

Exact match

“Strategic Security is an IT Security consulting firm that provides in-depth technical security assessments of your network, web application, and regulatory compliance gap analysis…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchBaton Rouge, LA, United StatesHQ recorded Nov 5, 202651-200121 contacts →

Exact match

“TraceSecurity is a leading cybersecurity services company, providing a broad range of services and solutions in IT security compliance, risk and vulnerability management, and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchPinhais - Alphaville, BrazilHQ recorded Nov 5, 202651-200117 contacts →

Exact match

“Inspirar confiança é a meta que guia todas as nossas ações.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchEssen, GermanyHQ recorded Nov 5, 202651-200116 contacts →

Exact match

“TÜV Informationstechnik GmbH (headquartered in Essen, Germany) is a renowned IT security service provider and an independent testing institute and laboratory for IT security and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 2,760 security auditing firms worldwide

See the full list, filter by size, metro and specialty, and access 6,561 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Security auditing firms worldwide at a glance

As of Nov 5, 2026
25.4%Verified-email coverage
9.3Average contacts per company
1-10Median size (employees)
1.6%Largest-city concentration · Paris
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
1,765
11-50
780
51-200
164
201-500
30
501-1,000
2
1,001-5,000
7
5,001-10,000
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 security auditing firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “security auditing 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 6,561 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 5, 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.

Security auditing firms by location

20 lists · largest first

Every Security auditing firms 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 “security auditing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many security auditing firms are there worldwide?

RevenueBase identified 2,760 company matches for security auditing firms 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?

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

Which country has the most security auditing firms?

The United States leads with 499 companies, followed by India (222) and France (147). Every security auditing firms list by country and city is linked on this page.

Which city has the most security auditing firms?

Paris leads with 45 company records, followed by London (41) and Bangalore (32).

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 6,561 professional contacts with verified work emails tracked across these 2,760 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 5, 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.