Company lists · Data refreshed November 2026

Top 25 Security assessment companies worldwide

RevenueBase identified 11,068 company matches for security assessment companies worldwide as of November 2026 and tracks 135,553 professional contacts across them, including 27,965 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for security assessment companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026. Country and city lists for security assessment companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
11,068Companies
135,553Contacts tracked
27,965Verified emails
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The 25 largest security assessment companies worldwide

Ranked by team size
Top 25 of 11,068 company matches for security assessment companies 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 matchUnited StatesHQ recorded Nov 5, 2026n/a13,149 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchHerndon, VA, United StatesHQ recorded Nov 5, 202610001+1,928 contacts →

Exact match

“Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchReston, VA, United StatesHQ recorded Nov 5, 20261,001-5,0001,346 contacts →

Exact match

“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchHerndon, VA, United StatesHQ recorded Nov 5, 202610001+1,186 contacts →

Exact match

“Securitas Critical Infrastructure Services, Inc.(SCIS) is a provider of specialized security and fire services to the highly regulated Nuclear, Aerospace, Defense, Energy, and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchPearl River, CA, United StatesHQ recorded Nov 5, 20265,001-10,0001,080 contacts →

Exact match

“Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchOslo, NorwayHQ recorded Nov 5, 20265,001-10,000859 contacts →

Exact match

“Securitas AS er det største og eldste sikkerhetsselskapet i Norge.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchNoida, IndiaHQ recorded Nov 5, 2026501-1,000822 contacts →

Exact match

“India's #1 Integrated Examination Security & Surveillance Solutions provider.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact 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
9Exact matchTunapuna, Trinidad and TobagoHQ recorded Nov 5, 20261,001-5,000779 contacts →

Exact match

“Established in 1983 and incorporated in 1986, Amalgamated Security Services Limited is a reputable company that provides a variety of security services to its clientele which…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchSpainHQ recorded Nov 5, 20261,001-5,000756 contacts →

Exact match

“comienzos de 1989 se funda SABICO SEGURIDAD S.A, estando inscrita en el Registro de Empresas de Seguridad con el nº 1731.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchChicago, IL, United StatesHQ recorded Nov 5, 2026501-1,000733 contacts →

Exact match

“Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchLos Angeles, CA, United StatesHQ recorded Nov 5, 20261,001-5,000697 contacts →

Exact match

“Professional Security Consultants, Inc.(PSC) is a world-class provider of security guard services, patrol, investigations, backgrounds, consulting, security screening & specialty…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchAustin, TX, United StatesHQ recorded Nov 5, 2026n/a693 contacts →

Exact match

“The Synack Red Team is a private freelance security research team that spans 6 continents and over 80 countries.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchPlano, TX, United StatesHQ recorded Nov 5, 2026501-1,000658 contacts →

Exact match

“At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchMiami, FL, United StatesHQ recorded Nov 5, 20261,001-5,000585 contacts →

Exact match

“Security Alliance is a highly experienced provider of security solutions for private and business environments.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchBrazilHQ recorded Nov 5, 2026501-1,000581 contacts →

Exact match

“Esparta Seguranca Ltda is a company based out of Brazil.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchDubai, United Arab EmiratesHQ recorded Nov 5, 2026201-500553 contacts →

Exact match

“Protection is Paramount!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchNairobi, KenyaHQ recorded Nov 5, 20261,001-5,000545 contacts →

Exact match

“BM Security was founded by the late senior assistant commissioner of Police Bob Morgan in 1984.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchCupertino, United StatesHQ recorded Nov 5, 20261,001-5,000514 contacts →

Exact match

“At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Nov 5, 2026501-1,000472 contacts →

Exact match

“CPX is redefining how nations and industries secure their future.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchGurgaon, IndiaHQ recorded Nov 5, 2026201-500413 contacts →

Exact match

“ACPL Systems is a pure-play cybersecurity services company focused on helping organisations translate security investments into measurable outcomes.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchParis, FranceHQ recorded Nov 5, 20261,001-5,000408 contacts →

Exact match

“Created in 2007, Amarante is one of Europe’s leading security providers.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchBochum, GermanyHQ recorded Nov 5, 2026501-1,000392 contacts →

Exact match

“Progress is our motivation because we are convinced that it will lead us to a successful future – independent of industries, companies and social classes.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact 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
25Exact matchMedellín, ColombiaHQ recorded Nov 5, 20261,001-5,000377 contacts →

Exact match

“Compañía líder a nivel nacional en Seguridad Privada, especializada en seguridad de obras civiles, centros comerciales, unidades residenciales, aeropuertos y otros sectores.”

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

Showing 25 of 11,068 security assessment companies worldwide

See the full list, filter by size, metro and specialty, and access 27,965 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Security assessment companies worldwide at a glance

As of Nov 5, 2026
20.6%Verified-email coverage
12.2Average contacts per company
1-10Median size (employees)
2.6%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
6,346
11-50
3,334
51-200
887
201-500
228
501-1,000
108
1,001-5,000
113
5,001-10,000
11
10001+
8

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 assessment companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “security assessment companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 27,965 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 assessment companies by location

85 lists · largest first

Every Security assessment companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “security assessment companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many security assessment companies are there worldwide?

RevenueBase identified 11,068 company matches for security assessment companies 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?

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

Which country has the most security assessment companies?

The United States leads with 2,507 companies, followed by India (974) and the United Kingdom (791). Every security assessment companies list by country and city is linked on this page.

Which city has the most security assessment companies?

London leads with 287 company records, followed by Bangalore (114) and Sao Paulo (113).

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 27,965 professional contacts with verified work emails tracked across these 11,068 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.