Company lists · Data refreshed September 2026

Top 25 Cybersecurity private equity firms worldwide

RevenueBase identified 2,864 company matches for cybersecurity private equity firms worldwide as of September 2026 and tracks 30,002 professional contacts across them, including 9,393 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for cybersecurity private equity 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 September 28, 2026. Country and city lists for cybersecurity private equity 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 Sep 28, 2026 How this list was built
2,864Companies
30,002Contacts tracked
9,393Verified emails
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The 25 largest cybersecurity private equity firms worldwide

Ranked by team size
Top 25 of 2,864 company matches for cybersecurity private equity firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 matchReston, VA, United StatesHQ recorded Sep 28, 20261,001-5,0001,232 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 · Sep 28, 2026 · View company records in RevenueBase
2Exact matchBengaluru, IndiaHQ recorded Sep 28, 2026201-500743 contacts →

Exact match

“SISA is a global forensics-driven cybersecurity solutions company, trusted by leading organizations for securing their businesses with robust preventive, detective, and corrective…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchMilpitas, CA, United StatesHQ recorded Sep 28, 20261,001-5,000676 contacts →

Exact match

“We are now officially Trellix!”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchParis, ItalyHQ recorded Sep 28, 2026501-1,000586 contacts →

Exact match

“Advens is a European, independent and outstanding leader in cybersecurity.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchParis, FranceHQ recorded Sep 28, 202651-200506 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 28, 2026501-1,000502 contacts →

Exact match

“SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchRockville, MD, United StatesHQ recorded Sep 28, 2026201-500488 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchPhiladelphia, PA, United StatesHQ recorded Sep 28, 2026201-500315 contacts →

Exact match

“We deliver cybersecurity consulting, 24x7 operations and SaaS to leading companies in the Financial Services, Healthcare, Pharmaceuticals, Technology and Retail industries.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchBangalore, IndiaHQ recorded Sep 28, 2026201-500270 contacts →

Exact match

“SecurEyes is a global cybersecurity specialist firm offering advisory plus consulting services and reg-tech products solving for cybersecurity challenges so that business leaders…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchRijswijk, NetherlandsHQ recorded Sep 28, 2026201-500233 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchCharlotte, NC, United StatesHQ recorded Sep 28, 2026n/a206 contacts →

Exact match

“A veteran-owned cybersecurity company focused on penetration testing, security training, and compliance.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchCastellón, SpainHQ recorded Sep 28, 2026201-500202 contacts →

Exact match

“Cuatroochenta es un grupo tecnológico internacional dedicado a adquirir, desarrollar e invertir en compañías innovadoras de tecnología, conocimiento especializado y ciberseguridad.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchTel Aviv, IsraelHQ recorded Sep 28, 202651-200202 contacts →

Exact match

“Team8 is a global venture group with deep domain expertise that creates companies and invests in companies specializing in enterprise technologies, cyber, AI, fintech and digital…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchAthens, GreeceHQ recorded Sep 28, 202651-200194 contacts →

Exact match

“CENSUS is a cybersecurity engineering powerhouse.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchGlobally Distributed, United StatesHQ recorded Sep 28, 2026201-500182 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchMaple Grove, MN, United StatesHQ recorded Sep 28, 2026201-500176 contacts →

Exact match

“Cyber Advisors is a nationwide leader in cyber security, providing a comprehensive range of Offensive, Defensive, and Risk Management services.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchCharlotte, NC, United StatesHQ recorded Sep 28, 2026201-500171 contacts →

Exact match

“Stratascale is a premier services company proudly operating as the cybersecurity division of SHI.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchMaidenhead, United KingdomHQ recorded Sep 28, 202651-200156 contacts →

Exact match

“Performanta is a global cybersecurity and data risk management company dedicated to protecting people where data matters most.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchColchester, VT, United StatesHQ recorded Sep 28, 202651-200151 contacts →

Exact match

“nuHarbor is a U.S-based cybersecurity firm trusted by public sector and critical infrastructure organizations nationwide.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchEast Brunswick, NJ, United StatesHQ recorded Sep 28, 202651-200148 contacts →

Exact match

“At Accorian, we don’t just advise on compliance, we operationalize it.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchRiverside, CA, United StatesHQ recorded Sep 28, 202651-200147 contacts →

Exact match

“Fidelis Security® is the industry innovator in proactive cyber defense, safeguarding modern IT for global enterprises with proactive XDR and CNAPP platforms.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchCedar Park, TX, United StatesHQ recorded Sep 28, 2026201-500143 contacts →

Exact match

“At Synersys Technologies, we help small and mid-sized enterprises build secure, scalable, and high-performance technology environments.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchChennai, IndiaHQ recorded Sep 28, 202651-200141 contacts →

Exact match

“Raksha Technologies: Empowering Your Cybersecurity Journey Raksha Technologies is a leading cybersecurity solutions provider, dedicated to partnering with organizations across…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchOslo, NorwayHQ recorded Sep 28, 202651-200138 contacts →

Exact match

“Netsecurity is a dedicated cyber security company that helps companies before, during and after an attack.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchEden Prairie, MN, United StatesHQ recorded Sep 28, 20261,001-5,000131 contacts →

Exact match

“HelpSystems has long been known for helping organizations become more secure and autonomous.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 2,864 cybersecurity private equity firms worldwide

See the full list, filter by size, metro and specialty, and access 9,393 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity private equity firms worldwide at a glance

As of Sep 28, 2026
31.3%Verified-email coverage
10.5Average contacts per company
1-10Median size (employees)
2.5%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
1,636
11-50
962
51-200
202
201-500
41
501-1,000
12
1,001-5,000
6
5,001-10,000
4
10001+
1

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 cybersecurity private equity firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “cybersecurity private equity 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 9,393 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 September 28, 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.

Cybersecurity private equity firms by location

17 lists · largest first

Every Cybersecurity private equity 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 “cybersecurity private equity firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity private equity firms are there worldwide?

RevenueBase identified 2,864 company matches for cybersecurity private equity firms worldwide as of September 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?

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

Which country has the most cybersecurity private equity firms?

The United States leads with 938 companies, followed by India (235) and the United Kingdom (153). Every cybersecurity private equity firms list by country and city is linked on this page.

Which city has the most cybersecurity private equity firms?

London leads with 73 company records, followed by New York (36) and Paris (31).

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 9,393 professional contacts with verified work emails tracked across these 2,864 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 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 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.