Company lists · Data refreshed September 2026

Top 25 Red team consulting firms worldwide

Name: Red team consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 9,083 companies tracked

RevenueBase identified 9,083 red team consulting firms worldwide as of September 2026 and tracks 107,453 professional contacts across them, including 29,848 with verified work emails. The United States is the largest market and London the largest hub.

This list covers red team consulting firms 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 29, 2026. Country and city lists for red team consulting firms 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 29, 2026 86% judged on-target in blind review

9,083Companies

107,453Contacts tracked

29,848Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest red team consulting firms worldwide

Ranked by team size

Top 25 of 9,083 red team consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to red team consulting firms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Private Sector	Indirect evidence	United StatesHQ checked Sep 29, 2026	n/a	12,771 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
2	OPTIV	Indirect evidence	Leawood, KS, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,222 contacts →
	Indirect evidence “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Source: RevenueBase Database · checked Sep 29, 2026
3	Guidepoint Security	Indirect evidence	Reston, VA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,232 contacts →
	Indirect evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 29, 2026
4	Ensign Infosecurity	Indirect evidence	SingaporeHQ checked Sep 29, 2026	501-1,000	888 contacts →
	Indirect evidence “Ensign InfoSecurity is the largest pure-play end-to-end cybersecurity service provider in Asia.” Source: RevenueBase Database · checked Sep 29, 2026
5	Trustwave, A Levelblue Company	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	501-1,000	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 29, 2026
6	Cyderes	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 29, 2026	1,001-5,000	844 contacts →
	Indirect evidence “Today’s threatscape is relentless.” Source: RevenueBase Database · checked Sep 29, 2026
7	SISA	Indirect evidence	Bengaluru, IndiaHQ checked Sep 29, 2026	201-500	743 contacts →
	Indirect evidence “SISA is a global forensics-driven cybersecurity solutions company, trusted by leading organizations for securing their businesses with robust preventive, detective, and corrective…” Source: RevenueBase Database · checked Sep 29, 2026
8	Network Intelligence	Partial evidence	Plano, TX, United StatesHQ checked Sep 29, 2026	501-1,000	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 29, 2026
9	I-Tracing	Indirect evidence	Courbevoie, FranceHQ checked Sep 29, 2026	1,001-5,000	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 29, 2026
10	Paramount Computer Systems	Indirect evidence	Dubai, United Arab EmiratesHQ checked Sep 29, 2026	201-500	525 contacts →
	Indirect evidence “Protection is Paramount!” Source: RevenueBase Database · checked Sep 29, 2026
11	Ultraviolet Cyber	Strong evidence	Mclean, VA, United StatesHQ checked Sep 29, 2026	501-1,000	523 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
12	own.security	Indirect evidence	Paris, FranceHQ checked Sep 29, 2026	51-200	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 29, 2026
13	Securityhq	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	501-1,000	502 contacts →
	Indirect evidence “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Source: RevenueBase Database · checked Sep 29, 2026
14	Aujas Cybersecurity	Indirect evidence	Cupertino, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	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 29, 2026
15	Palo Alto Networks Unit 42	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 29, 2026	5,001-10,000	441 contacts →
	Partial evidence “Palo Alto Networks Unit 42 brings together world-renowned threat researchers with an elite team of incident responders and security consultants to create an intelligence-driven…” Source: RevenueBase Database · checked Sep 29, 2026
16	Safeway	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 29, 2026	201-500	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 29, 2026
17	Acpl Systems	Indirect evidence	Gurgaon, IndiaHQ checked Sep 29, 2026	201-500	398 contacts →
	Indirect 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 29, 2026
18	G Data Cyberdefense	Indirect evidence	Bochum, GermanyHQ checked Sep 29, 2026	501-1,000	386 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 29, 2026
19	Esec Forte Technologies	Partial evidence	Gurugram, IndiaHQ checked Sep 29, 2026	201-500	363 contacts →
	Partial 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 29, 2026
20	T Security - Dach	Indirect evidence	Bonn, GermanyHQ checked Sep 29, 2026	1,001-5,000	363 contacts →
	Indirect evidence “Wir glauben an eine sichere digitale Zukunft mit minimalen Risiken und maximalen Chancen.” Source: RevenueBase Database · checked Sep 29, 2026
21	Deep Water Point & Associates	Indirect evidence	Annapolis, MD, United StatesHQ checked Sep 29, 2026	201-500	350 contacts →
	Indirect evidence “Deep Water Point & Associates is composed of industry veterans and government experts who dedicate their expertise to maximize our clients’ competitive edge.” Source: RevenueBase Database · checked Sep 29, 2026
22	Cobalt	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	201-500	350 contacts →
	Indirect evidence “Cobalt is the pioneer in pentesting as a service and a leader in offensive security services.” Source: RevenueBase Database · checked Sep 29, 2026
23	SK Shieldus	Indirect evidence	경기도, South KoreaHQ checked Sep 29, 2026	5,001-10,000	348 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
24	Bishop FOX	Partial evidence	Tempe, AZ, United StatesHQ checked Sep 29, 2026	201-500	344 contacts →
	Partial evidence “Bishop Fox is recognized as the leading authority in offensive security, providing solutions ranging from continuous penetration testing, red teaming, and attack surface…” Source: RevenueBase Database · checked Sep 29, 2026
25	Techdefence	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 29, 2026	201-500	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 29, 2026

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: red team consulting firms. 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 red team consulting firms.
Partial evidence: Its own public description names part of red team consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name red team consulting firms. 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 9,083 red team consulting firms worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 29,848 reachable decision-makers.

Free signup · no credit card

View the full list →

Red team consulting firms worldwide at a glance

As of Sep 29, 2026

27.8%Verified-email coverage

11.8Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

5,333

11-50

2,922

51-200

625

201-500

139

501-1,000

1,001-5,000

5,001-10,000

10001+

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 red team consulting firms, 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 red team consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “red team consulting firms”. 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 red team consulting firms), 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 red team consulting firms, 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, 29,848 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 29, 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.

Red team consulting firms by location

70 lists · largest first

Every Red team consulting 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 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 red team consulting firms, 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 red team consulting firms are there worldwide?

RevenueBase identified 9,083 red team consulting firms 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 red team consulting firms?

The United States leads with 2,083 companies, followed by India (943) and the United Kingdom (565). Every red team consulting firms list by country and city is linked on this page.

Which city has the most red team consulting firms?

London leads with 219 headquartered companies, followed by Sao Paulo (93) and Paris (86).

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 29,848 verified decision-maker contacts tracked across these 9,083 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 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 9,083 red team consulting firms worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.