Company lists · Data refreshed September 2026
Top 25 IT security assessment services worldwide
RevenueBase identified 10,977 IT security assessment services worldwide as of September 2026 and tracks 119,628 professional contacts across them, including 32,265 with verified work emails. The United States is the largest market and London the largest hub.
This list covers IT security 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 28, 2026. Country and city lists for IT security 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 IT security assessment services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 12,771 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,252 contacts → | ||||
Indirect evidence “Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 947 contacts → | ||||
Indirect evidence “Coalfire is the premier Cybersecurity and Compliance Services leader for the tech, healthcare, and finance industries.(This page is maintained by Marketing.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 763 contacts → | ||||
Strong evidence “With 35 years of experience, Softcell Technologies Global is a trusted IT services provider specialising in (i) IT security and cybersecurity solutions,(ii) cloud / on-premise…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 639 contacts → | ||||
Indirect evidence “I-TRACING, pure player and cybersecurity service provider leader in France, supports over 600 clients around the world in managing their cyber risks, from anticipating threats to…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 628 contacts → | ||||
Indirect evidence “VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 535 contacts → | ||||
Partial evidence “Funded by world-class investors, including Evolution Equity Partners, Silver Lake Partners, Sequoia Capital, GV, Riverwood Capital, and others, SecurityScorecard is the global…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 486 contacts → | ||||
Partial evidence “Pentera provides AI-powered Automated Security Validation for enterprise security teams.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 394 contacts → | ||||
Indirect evidence “CPX is redefining how nations and industries secure their future.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 386 contacts → | ||||
Partial 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 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 374 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 363 contacts → | ||||
Strong 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 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 363 contacts → | ||||
Indirect evidence “Wir glauben an eine sichere digitale Zukunft mit minimalen Risiken und maximalen Chancen.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 359 contacts → | ||||
Partial evidence “Founded in 2010, Synetis is the leading independent French consultancy firm specialising in information systems security (ISS).” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 348 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 335 contacts → | ||||
Indirect evidence “T A L A K U N C H I Networks Pvt.” Source: RevenueBase Database · checked Sep 28, 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: IT security 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 IT security assessment services.
- Partial evidence
- Its own public description names part of IT security assessment services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT security 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 10,977 IT security assessment services worldwide
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IT security assessment services 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
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among IT security 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 IT security assessment services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “IT security 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 IT security 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 IT security 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, 32,265 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 28, 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.
IT security assessment services by location
79 lists · largest firstEvery IT security assessment services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- IT security assessment services based in the United States2,642
- IT security assessment services based in India1,024
- IT security assessment services based in the United Kingdom732
- IT security assessment services based in Canada353
- IT security assessment services based in Australia334
- IT security assessment services based in France313
- IT security assessment services based in Germany312
- IT security assessment services based in Brazil262
- IT security assessment services based in the Netherlands223
- IT security assessment services based in the United Arab Emirates175
- IT security assessment services based in Spain148
- IT security assessment services based in Italy115
- IT security assessment services based in South Africa114
- IT security assessment services based in Switzerland112
- IT security assessment services based in Israel111
- IT security assessment services based in Mexico104
- IT security assessment services based in Poland96
- IT security assessment services based in Türkiye93
- IT security assessment services based in Belgium76
- IT security assessment services based in Sweden72
- IT security assessment services based in Chile68
- IT security assessment services based in Colombia64
- IT security assessment services based in Saudi Arabia63
- IT security assessment services based in Austria57
- IT security assessment services based in Indonesia54
- IT security assessment services based in New Zealand53
- IT security assessment services based in Romania52
- IT security assessment services based in Argentina49
- IT security assessment services based in Ireland45
- IT security assessment services based in Denmark44
- IT security assessment services based in Portugal37
- IT security assessment services based in Kenya32
- IT security assessment services based in Malaysia32
- IT security assessment services based in Japan31
- IT security assessment services based in Ukraine31
- IT security assessment services based in Greece29
- IT security assessment services based in Hungary28
- IT security assessment services based in Egypt27
Cities
- IT security assessment services based in London, United Kingdom282
- IT security assessment services based in Dubai, United Arab Emirates101
- IT security assessment services based in Sao Paulo, Brazil98
- IT security assessment services based in Paris, France94
- IT security assessment services based in Toronto, Canada94
- IT security assessment services based in New York, United States85
- IT security assessment services based in Pune, India81
- IT security assessment services based in Hyderabad, India80
- IT security assessment services based in Sydney, Australia80
- IT security assessment services based in Melbourne, Australia68
- IT security assessment services based in Mumbai, India67
- IT security assessment services based in Bangalore, India65
- IT security assessment services based in Chennai, India56
- IT security assessment services based in Atlanta, United States55
- IT security assessment services based in New Delhi, India54
- IT security assessment services based in San Francisco, United States54
- IT security assessment services based in Bengaluru, India53
- IT security assessment services based in Austin, United States49
- IT security assessment services based in Houston, United States49
- IT security assessment services based in Noida, India47
- IT security assessment services based in Chicago, United States45
- IT security assessment services based in Ahmedabad, India44
- IT security assessment services based in Dallas, United States43
- IT security assessment services based in Tampa, United States43
- IT security assessment services based in Washington, United States41
- IT security assessment services based in Miami, United States40
- IT security assessment services based in Riyadh, Saudi Arabia38
- IT security assessment services based in Berlin, Germany33
- IT security assessment services based in Stockholm, Sweden33
- IT security assessment services based in Calgary, Canada32
- IT security assessment services based in Arlington, United States31
- IT security assessment services based in Manchester, United Kingdom30
- IT security assessment services based in Los Angeles, United States28
- IT security assessment services based in Nairobi, Kenya28
- IT security assessment services based in Ottawa, Canada28
- IT security assessment services based in Brisbane, Australia27
- IT security assessment services based in Barcelona, Spain26
- IT security assessment services based in Johannesburg, South Africa26
- IT security assessment services based in Boston, United States25
- IT security assessment services based in Santiago, Chile25
- IT security assessment services based in Tel Aviv, Israel25
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 IT security 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 IT security assessment services are there worldwide?
RevenueBase identified 10,977 IT security 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 IT security assessment services?
The United States leads with 2,642 companies, followed by India (1,024) and the United Kingdom (732). Every IT security assessment services list by country and city is linked on this page.
Which city has the most IT security assessment services?
London leads with 286 headquartered companies, followed by Dubai (101) and Sao Paulo (98).
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 32,265 verified decision-maker contacts tracked across these 10,977 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 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 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.