Company lists · Data refreshed September 2026

Top 25 Offensive security testing providers worldwide

RevenueBase identified 4,803 company matches for offensive security testing providers worldwide as of September 2026 and tracks 63,039 professional contacts across them, including 12,783 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for offensive security testing providers 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 29, 2026. Country and city lists for offensive security testing providers 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 29, 2026 How this list was built
4,803Companies
63,039Contacts tracked
12,783Verified emails
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The 25 largest offensive security testing providers worldwide

Ranked by team size
Top 25 of 4,803 company matches for offensive security testing providers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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 Sep 29, 2026n/a12,771 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchSan Francisco, CA, United StatesHQ recorded Sep 29, 2026n/a3,649 contacts →

Exact match

“We are a crowdsourced security company that safeguards organizations' assets from sophisticated threat actors before they can strike-by uniting our customers with trusted hackers…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchChicago, IL, United StatesHQ recorded Sep 29, 2026501-1,000874 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 · Sep 29, 2026 · View company records in RevenueBase
4Exact matchAustin, TX, United StatesHQ recorded Sep 29, 2026n/a813 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 · Sep 29, 2026 · View company records in RevenueBase
5Exact matchMinneapolis, MN, United StatesHQ recorded Sep 29, 2026501-1,000587 contacts →

Exact match

“NetSPI® pioneered Penetration Testing as a Service (PTaaS) and leads the industry in modern, continuous pentesting.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchParis, FranceHQ recorded Sep 29, 202651-200586 contacts →

Exact match

“YesWeHack is a leading Offensive Security and Exposure Management platform delivering integrated, API-based solutions to secure organisations’ growing attack surfaces.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchMclean, VA, United StatesHQ recorded Sep 29, 2026501-1,000523 contacts →

Exact match

“UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program, finding what's vulnerable, stopping…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchBurlington, MA, United StatesHQ recorded Sep 29, 2026201-500486 contacts →

Exact match

“Pentera provides AI-powered Automated Security Validation for enterprise security teams.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchSan Francisco, CA, United StatesHQ recorded Sep 29, 2026201-500350 contacts →

Exact match

“Cobalt is the pioneer in pentesting as a service and a leader in offensive security services.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchTempe, AZ, United StatesHQ recorded Sep 29, 2026201-500344 contacts →

Exact match

“Bishop Fox is recognized as the leading authority in offensive security, providing solutions ranging from continuous penetration testing, red teaming, and attack surface…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchAhmedabad, IndiaHQ recorded Sep 29, 2026201-500340 contacts →

Exact match

“TechDefence Labs (TechD Cybersecurity Limited) Award-winning | Innovative | Visionary We empower organizations across the globe to secure their applications, networks, and digital…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchMumbai, IndiaHQ recorded Sep 29, 2026201-500335 contacts →

Exact match

“T A L A K U N C H I Networks Pvt.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchKnutsford, United KingdomHQ recorded Sep 29, 202651-200267 contacts →

Exact match

“PortSwigger is a global leader in the creation of software tools for security testing of web applications.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchAlbuquerque, NM, United StatesHQ recorded Sep 29, 2026201-500244 contacts →

Exact match

“Securin is obsessed with helping leaders continuously improve their security posture.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchSao Paulo, BrazilHQ recorded Sep 29, 2026201-500230 contacts →

Exact match

“We are a young company, founded in 2019 in Brazil, with the aim of bringing an innovative approach to the information security market, with state-of-the-art proprietary and…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchCharlotte, NC, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
17Exact matchReston, VA, United StatesHQ recorded Sep 29, 20261,001-5,000204 contacts →

Exact match

“MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchParis, FranceHQ recorded Sep 29, 2026n/a197 contacts →

Exact match

“Yogosha is an Offensive Security Testing Platform that allows companies and governments to raise their security posture.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchJakarta, IndonesiaHQ recorded Sep 29, 202651-200189 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchNY, United StatesHQ recorded Sep 29, 2026201-500186 contacts →

Exact match

“Kualitatem empowers businesses to deliver quality software.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchAhmedabad, IndiaHQ recorded Sep 29, 202651-200182 contacts →

Exact match

“Net Square is a company specializing in information security.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchNoida, IndiaHQ recorded Sep 29, 2026201-500181 contacts →

Exact match

“SDAD Technology Pvt.Ltd.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchTel Aviv, IsraelHQ recorded Sep 29, 202651-200180 contacts →

Exact match

“2Bsecure Ltd.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchSweden, ItalyHQ recorded Sep 29, 2026201-500177 contacts →

Exact match

“We are Reversec.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchParis, FranceHQ recorded Sep 29, 2026201-500171 contacts →

Exact match

“Synacktiv is an offensive security company founded in 2012 by several security experts.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 4,803 offensive security testing providers worldwide

See the full list, filter by size, metro and specialty, and access 12,783 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Offensive security testing providers worldwide at a glance

As of Sep 29, 2026
20.3%Verified-email coverage
13.1Average contacts per company
1-10Median size (employees)
2.5%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
2,941
11-50
1,501
51-200
280
201-500
51
501-1,000
9
1,001-5,000
13
5,001-10,000
1
10001+
3

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 offensive security testing providers are linked below.
What qualifies
Company records worldwide whose business descriptions match “offensive security testing providers” 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 12,783 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 29, 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.

Offensive security testing providers by location

32 lists · largest first

Every Offensive security testing providers 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 “offensive security testing providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many offensive security testing providers are there worldwide?

RevenueBase identified 4,803 company matches for offensive security testing providers 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?

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

Which country has the most offensive security testing providers?

The United States leads with 856 companies, followed by India (566) and the United Kingdom (308). Every offensive security testing providers list by country and city is linked on this page.

Which city has the most offensive security testing providers?

London leads with 121 company records, followed by Sao Paulo (51) and Paris (46).

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 12,783 professional contacts with verified work emails tracked across these 4,803 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 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 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.