Company lists · Data refreshed September 2026

Top 25 Cybersecurity utility companies worldwide

RevenueBase identified 2,781 cybersecurity utility companies worldwide as of September 2026 and tracks 54,676 professional contacts across them, including 14,048 with verified work emails. The United States is the largest market and London the largest hub.

This list covers cybersecurity utility companies 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 21, 2026. Country and city lists for cybersecurity utility companies 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review
2,781Companies
54,676Contacts tracked
14,048Verified emails
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The 25 largest cybersecurity utility companies worldwide

Ranked by team size
Top 25 of 2,781 cybersecurity utility companies worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity utility companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceUnited StatesHQ checked Sep 21, 2026n/a12,771 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
2Partial evidenceAbingdon, United KingdomHQ checked Sep 21, 20265,001-10,0004,925 contacts →

Partial evidence

“Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.”

Source: RevenueBase Database · checked Sep 21, 2026
3Partial evidenceNanterre, FranceHQ checked Sep 21, 20261,001-5,0003,673 contacts →

Partial evidence

“Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.”

Source: RevenueBase Database · checked Sep 21, 2026
4Partial evidenceChicago, IL, United StatesHQ checked Sep 21, 2026501-1,000874 contacts →

Partial 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 21, 2026
5Indirect evidenceHerndon, United StatesHQ checked Sep 21, 20261,001-5,000636 contacts →

Indirect evidence

“Everfox delivers trusted connectivity to protect the world's most critical environments, safeguarding the sensitive information behind decision advantage.”

Source: RevenueBase Database · checked Sep 21, 2026
6Partial evidenceHanover, MD, United StatesHQ checked Sep 21, 2026501-1,000551 contacts →

Partial evidence

“Dragos provides the most effective OT cybersecurity technology for industrial and critical infrastructure to deliver on our global mission: to safeguard civilization.”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceRiyadh, Saudi ArabiaHQ checked Sep 21, 2026201-500493 contacts →

Indirect evidence

“World-class leading edge cyber capabilities to enable and protect economic and physical critical infrastructure and government services.”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceSao Paulo, BrazilHQ checked Sep 21, 2026201-500399 contacts →

Indirect evidence

“A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.”

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceJakarta, IndonesiaHQ checked Sep 21, 2026201-500388 contacts →

Partial evidence

“ITSEC Asia is a leading cybersecurity company in Indonesia, listed on the Indonesian Stock Exchange (“CYBR”), with over 400 employees across five countries.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceBochum, GermanyHQ checked Sep 21, 2026501-1,000386 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 21, 2026
11Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 21, 2026201-500375 contacts →

Indirect evidence

“We protect the world’s critical infrastructure from cyber threats.”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceBonn, GermanyHQ checked Sep 21, 20261,001-5,000363 contacts →

Indirect evidence

“Wir glauben an eine sichere digitale Zukunft mit minimalen Risiken und maximalen Chancen.”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidence경기도, South KoreaHQ checked Sep 21, 20265,001-10,000348 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceSwedenHQ checked Sep 21, 2026201-500332 contacts →

Indirect evidence

“Prevent Breach & Minimize Impact”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceReading, United KingdomHQ checked Sep 21, 2026201-500303 contacts →

Indirect evidence

“Bridewell is the trusted cyber security partner for organisations operating within Critical National Infrastructure (CNI), as well as companies who want the highest standard of…”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceTel Aviv, IsraelHQ checked Sep 21, 2026201-500249 contacts →

Indirect evidence

“Sygnia is a cyber technology and services company, providing high-end consulting and incident response support for organizations worldwide.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceRiyadh, Saudi ArabiaHQ checked Sep 21, 2026201-500241 contacts →

Indirect evidence

“Cyberani is an Aramco Digital company that is dedicated to safeguarding the digital frontiers of industry leaders and government agencies.”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceRijswijk, NetherlandsHQ checked Sep 21, 2026201-500233 contacts →

Indirect evidence

“Fox-IT prevents, solves and mitigates the most serious cyber threats with innovative solutions for government, defense, law enforcement, critical infrastructure, banking, and…”

Source: RevenueBase Database · checked Sep 21, 2026
19Partial evidenceOrlando, FL, United StatesHQ checked Sep 21, 2026201-500231 contacts →

Partial evidence

“Fortress is the AI-powered cybersecurity company defending critical infrastructure, government agencies, and their supply chains against cyber threats and mission risks.”

Source: RevenueBase Database · checked Sep 21, 2026
20Partial evidenceAthens, GreeceHQ checked Sep 21, 202651-200194 contacts →

Partial evidence

“CENSUS is a cybersecurity engineering powerhouse.”

Source: RevenueBase Database · checked Sep 21, 2026
21Partial evidenceMadrid, SpainHQ checked Sep 21, 2026201-500191 contacts →

Partial evidence

“S21Sec, Cyber Solutions by Thales, is a leading European Cybersecurity pure-player, with more than 400 security experts and an Iberian SOC.”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceJakarta, IndonesiaHQ checked Sep 21, 202651-200189 contacts →

Partial evidence

“Protergo is an Indonesia-based cybersecurity company committed to delivering world-class security solutions.”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceGlobally Distributed, United StatesHQ checked Sep 21, 2026201-500182 contacts →

Indirect evidence

“With 30 years of experience in cyber defense, DeepSeas is trusted by nearly clients around the world, including Fortune 100 enterprises and mid-market organizations, municipality…”

Source: RevenueBase Database · checked Sep 21, 2026
24Partial evidenceColombo 08, Sri LankaHQ checked Sep 21, 2026201-500164 contacts →

Partial evidence

“Founded in 2012, CryptoGen is the largest cybersecurity company in Srilanka specializing in the design, implementation, and management of advanced cyber defense solutions.”

Source: RevenueBase Database · checked Sep 21, 2026
25Partial evidenceKuala Lumpur, MalaysiaHQ checked Sep 21, 202651-200162 contacts →

Partial evidence

“Founded in 2008 by seasoned cybersecurity professionals, Firmus is an industry leader in delivering advanced cybersecurity services and solutions.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 2,781 cybersecurity utility companies worldwide

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Cybersecurity utility companies worldwide at a glance

As of Sep 21, 2026
25.7%Verified-email coverage
19.7Average contacts per company
1-10Median size (employees)
2.1%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
1,402
11-50
1,036
51-200
251
201-500
56
501-1,000
15
1,001-5,000
9
5,001-10,000
7
10001+
2

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 cybersecurity utility companies, 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 cybersecurity utility companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “cybersecurity utility companies”. 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 cybersecurity utility companies), 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 cybersecurity utility companies, 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, 14,048 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 21, 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.

Cybersecurity utility companies by location

19 lists · largest first

Every Cybersecurity utility companies 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 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 cybersecurity utility companies, 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 cybersecurity utility companies are there worldwide?

RevenueBase identified 2,781 cybersecurity utility companies 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 cybersecurity utility companies?

The United States leads with 595 companies, followed by India (316) and the United Kingdom (135). Every cybersecurity utility companies list by country and city is linked on this page.

Which city has the most cybersecurity utility companies?

London leads with 59 headquartered companies, followed by Dubai (40) and Hyderabad (27).

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 14,048 verified decision-maker contacts tracked across these 2,781 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 21, 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.