Company lists · Data refreshed September 2026
Top 25 Security audit and assessment services worldwide
RevenueBase identified 7,913 security audit and assessment services worldwide as of September 2026 and tracks 85,970 professional contacts across them, including 21,289 with verified work emails. The United States is the largest market and London the largest hub.
This list covers security audit and assessment services worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026. Country and city lists for security audit and assessment services follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 security audit and assessment services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 12,771 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,232 contacts → | ||||
Partial evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 874 contacts → | ||||
Indirect evidence “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 705 contacts → | ||||
Strong evidence “Get a free, powerful security assessment with personalised recommendations, the same analysis that costs from IT Consultancies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 641 contacts → | ||||
Partial evidence “At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 628 contacts → | ||||
Indirect evidence “VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 506 contacts → | ||||
Indirect evidence “Founded in 2008, OWN is a Pure Player in cybersecurity, with offices in Paris, Rennes and Toulouse, but with a presence throughout France with its fully remote employees.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 473 contacts → | ||||
Indirect evidence “At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 399 contacts → | ||||
Indirect evidence “A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 398 contacts → | ||||
Partial evidence “ACPL Systems is a pure-play cybersecurity services company focused on helping organisations translate security investments into measurable outcomes.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 386 contacts → | ||||
Indirect evidence “Progress is our motivation because we are convinced that it will lead us to a successful future – independent of industries, companies and social classes.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 363 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 363 contacts → | ||||
Indirect evidence “Wir glauben an eine sichere digitale Zukunft mit minimalen Risiken und maximalen Chancen.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 340 contacts → | ||||
Indirect evidence “TechDefence Labs (TechD Cybersecurity Limited) Award-winning | Innovative | Visionary We empower organizations across the globe to secure their applications, networks, and digital…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 335 contacts → | ||||
Indirect evidence “T A L A K U N C H I Networks Pvt.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 332 contacts → | ||||
Indirect evidence “Prevent Breach & Minimize Impact” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 329 contacts → | ||||
Indirect evidence “UpGuard is the only platform that unifies cyber risk management across the vendor supply chain, attack surface, and human workforce.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 315 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 292 contacts → | ||||
Indirect evidence “NEVERHACK is a French group specialized in cybersecurity for over 40 years.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 272 contacts → | ||||
Strong evidence “Prescient Security is a global cybersecurity and compliance firm delivering risk-based audits, advanced penetration testing, and end-to-end framework support.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 270 contacts → | ||||
Indirect evidence “SecurEyes is a global cybersecurity specialist firm offering advisory plus consulting services and reg-tech products solving for cybersecurity challenges so that business leaders…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 255 contacts → | ||||
Indirect evidence “Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 243 contacts → | ||||
Indirect evidence “Thoropass is the only end-to-end cybersecurity auditor.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 242 contacts → | ||||
Partial evidence “Obrela Security Industries is a global provider of cyber security services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 238 contacts → | ||||
Partial evidence “Established 26 years ago, Meta Infotech has been a trusted name in Cyber and IT Risk Assessment Services, Cybersecurity Product Consulting, Implementation & Sustenance Services…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: security audit and assessment services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names security audit and assessment services.
- Partial evidence
- Its own public description names part of security audit and assessment services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name security audit and assessment services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 7,913 security audit and assessment services worldwide
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Security audit and assessment services worldwide at a glance
As of Sep 29, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among security audit and assessment services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for security audit and assessment services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “security audit and assessment services”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names security audit and assessment services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among security audit and assessment services, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 21,289 across the full list. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Security audit and assessment services by location
55 lists · largest firstEvery Security audit and assessment services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security audit and assessment services based in the United States1,893
- Security audit and assessment services based in India795
- Security audit and assessment services based in the United Kingdom520
- Security audit and assessment services based in Canada264
- Security audit and assessment services based in France260
- Security audit and assessment services based in Australia242
- Security audit and assessment services based in Germany173
- Security audit and assessment services based in the Netherlands166
- Security audit and assessment services based in Brazil165
- Security audit and assessment services based in Spain124
- Security audit and assessment services based in the United Arab Emirates104
- Security audit and assessment services based in South Africa86
- Security audit and assessment services based in Switzerland81
- Security audit and assessment services based in Poland79
- Security audit and assessment services based in Italy69
- Security audit and assessment services based in Israel68
- Security audit and assessment services based in Belgium64
- Security audit and assessment services based in Mexico64
- Security audit and assessment services based in Türkiye61
- Security audit and assessment services based in Chile52
- Security audit and assessment services based in Indonesia47
- Security audit and assessment services based in Sweden44
- Security audit and assessment services based in Romania43
- Security audit and assessment services based in Austria41
- Security audit and assessment services based in Colombia40
- Security audit and assessment services based in Saudi Arabia39
- Security audit and assessment services based in Argentina37
- Security audit and assessment services based in New Zealand36
- Security audit and assessment services based in Ireland31
- Security audit and assessment services based in Ukraine25
Cities
- Security audit and assessment services based in London, United Kingdom186
- Security audit and assessment services based in Bangalore, India93
- Security audit and assessment services based in Paris, France82
- Security audit and assessment services based in Toronto, Canada77
- Security audit and assessment services based in Sao Paulo, Brazil68
- Security audit and assessment services based in Hyderabad, India65
- Security audit and assessment services based in Pune, India61
- Security audit and assessment services based in New York, United States60
- Security audit and assessment services based in Dubai, United Arab Emirates53
- Security audit and assessment services based in Melbourne, Australia53
- Security audit and assessment services based in Sydney, Australia53
- Security audit and assessment services based in Mumbai, India47
- Security audit and assessment services based in Atlanta, United States45
- Security audit and assessment services based in Chennai, India42
- Security audit and assessment services based in Noida, India39
- Security audit and assessment services based in Austin, United States36
- Security audit and assessment services based in Ahmedabad, India35
- Security audit and assessment services based in Chicago, United States34
- Security audit and assessment services based in San Francisco, United States33
- Security audit and assessment services based in Tampa, United States33
- Security audit and assessment services based in Washington, United States33
- Security audit and assessment services based in Houston, United States32
- Security audit and assessment services based in Miami, United States29
- Security audit and assessment services based in Dallas, United States26
- Security audit and assessment services based in Los Angeles, United States25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names security audit and assessment services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many security audit and assessment services are there worldwide?
RevenueBase identified 7,913 security audit and assessment services worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Private Sector, headquartered in Worldwide, tops this list with the largest team on record.
Which country has the most security audit and assessment services?
The United States leads with 1,893 companies, followed by India (795) and the United Kingdom (520). Every security audit and assessment services list by country and city is linked on this page.
Which city has the most security audit and assessment services?
London leads with 189 headquartered companies, followed by Paris (82) and Toronto (77).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 21,289 verified decision-maker contacts tracked across these 7,913 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 Smart Search, 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.