Company lists · Data refreshed September 2026

Top 25 Cyber consultancies worldwide

Name: Cyber consultancies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 41,963 companies tracked

RevenueBase identified 41,963 cyber consultancies worldwide as of September 2026 and tracks 543,575 professional contacts across them, including 186,959 with verified work emails and 90,786 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers cyber consultancies 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 24, 2026. Country and city lists for cyber consultancies 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 24, 2026 86% judged on-target in blind review

41,963Companies

543,575Contacts tracked

186,959Verified emails

90,786Mobile numbers

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The 25 largest cyber consultancies worldwide

Ranked by team size

Top 25 of 41,963 cyber consultancies worldwide, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to cyber consultancies: 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	Minsait	Partial evidence	Alcobendas, SpainHQ checked Sep 24, 2026	10001+	15,041 contacts →
	Partial evidence “We are one of the world's leading consultancies in technological services for companies and the public sector.” Source: RevenueBase Database · checked Sep 24, 2026
2	Fortinet	Indirect evidence	Sunnyvale, CA, United StatesHQ checked Sep 24, 2026	10001+	14,289 contacts →
	Indirect evidence “Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Source: RevenueBase Database · checked Sep 24, 2026
3	Symantec	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 24, 2026	10001+	11,169 contacts →
	Indirect evidence “Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Source: RevenueBase Database · checked Sep 24, 2026
4	Comcast Business	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 24, 2026	10001+	8,242 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 24, 2026
5	SCC	Indirect evidence	Birmingham, FranceHQ checked Sep 24, 2026	5,001-10,000	5,460 contacts →
	Indirect evidence “SCC unleashes the potential of IT for global businesses, as one of Europe’s largest independent IT groups.” Source: RevenueBase Database · checked Sep 24, 2026
6	Sophos	Indirect evidence	Abingdon, United KingdomHQ checked Sep 24, 2026	5,001-10,000	4,925 contacts →
	Indirect evidence “Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.” Source: RevenueBase Database · checked Sep 24, 2026
7	Orange Cyberdefense	Indirect evidence	Nanterre, FranceHQ checked Sep 24, 2026	1,001-5,000	3,673 contacts →
	Indirect evidence “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Source: RevenueBase Database · checked Sep 24, 2026
8	Bugcrowd	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 24, 2026	n/a	3,649 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 24, 2026
9	Trellix	Partial evidence	Plano, TX, United StatesHQ checked Sep 24, 2026	1,001-5,000	3,447 contacts →
	Partial evidence “Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Source: RevenueBase Database · checked Sep 24, 2026
10	Alten Italia	Indirect evidence	Milano, ItalyHQ checked Sep 24, 2026	1,001-5,000	3,085 contacts →
	Indirect evidence “Il Gruppo ALTEN, leader europeo nella consulenza per le tecnologie avanzate in campo ingegneristico e ICT, è quotato alla Borsa di Parigi e vanta più di 57.700 collaboratori in…” Source: RevenueBase Database · checked Sep 24, 2026
11	BAE Systems Digital Intelligence	Partial evidence	Canberra, United KingdomHQ checked Sep 24, 2026	1,001-5,000	2,947 contacts →
	Partial evidence “Digital Intelligence is home to over 4,500 digital, cyber and intelligence experts across 13 countries.” Source: RevenueBase Database · checked Sep 24, 2026
12	Sailpoint	Indirect evidence	Austin, TX, United StatesHQ checked Sep 24, 2026	1,001-5,000	2,886 contacts →
	Indirect evidence “SailPoint equips the modern enterprise to seamlessly manage and secure access to applications and data through the lens of identity – at speed and scale.” Source: RevenueBase Database · checked Sep 24, 2026
13	NIL LTD	Partial evidence	Ljubljana, SloveniaHQ checked Sep 24, 2026	n/a	2,523 contacts →
	Partial evidence “NIL is a globally recognized provider of advanced data center, network, cloud, cyber security solutions as well as services for business and industry environments, state…” Source: RevenueBase Database · checked Sep 24, 2026
14	OPTIV	Partial evidence	Leawood, KS, United StatesHQ checked Sep 24, 2026	1,001-5,000	2,222 contacts →
	Partial 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 24, 2026
15	Sigma Software Group	Indirect evidence	Stockholm, SwedenHQ checked Sep 24, 2026	1,001-5,000	1,566 contacts →
	Indirect evidence “Sigma Software Group, an award-winning and trusted IT partner, has been serving customers for over 24 years, providing comprehensive IT solutions to various businesses, ranging…” Source: RevenueBase Database · checked Sep 24, 2026
16	DGS	Indirect evidence	Rome, ItalyHQ checked Sep 24, 2026	1,001-5,000	1,558 contacts →
	Indirect evidence “DGS is the Italian technological partner operating as an integrated group.” Source: RevenueBase Database · checked Sep 24, 2026
17	Nava Tech For Business	Indirect evidence	Barueri, BrazilHQ checked Sep 24, 2026	1,001-5,000	1,452 contacts →
	Indirect evidence “Atuamos no core de empresas líderes em seus segmentos, onde tecnologia, estratégia e operação se encontram.” Source: RevenueBase Database · checked Sep 24, 2026
18	Thrive	Indirect evidence	Foxborough, MA, United StatesHQ checked Sep 24, 2026	1,001-5,000	1,432 contacts →
	Indirect evidence “Thrive is a NextGen 3.0 global technology outsourcing provider that empowers small and mid-market organizations to transform their technology into a strategic advantage.” Source: RevenueBase Database · checked Sep 24, 2026
19	SCC France	Indirect evidence	Nanterre, FranceHQ checked Sep 24, 2026	1,001-5,000	1,300 contacts →
	Indirect evidence “SCC France unleashes the potential of IT for global businesses, as one of Europe’s largest independent IT groups.” Source: RevenueBase Database · checked Sep 24, 2026
20	Thales Cybersecurity Products	Indirect evidence	Austin, TX, United StatesHQ checked Sep 24, 2026	1,001-5,000	1,252 contacts →
	Indirect evidence “Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.” Source: RevenueBase Database · checked Sep 24, 2026
21	Guidepoint Security	Indirect evidence	Reston, VA, United StatesHQ checked Sep 24, 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 24, 2026
22	Imperva	Indirect evidence	Austin, TX, United StatesHQ checked Sep 24, 2026	10001+	1,217 contacts →
	Indirect evidence “On Dec.” Source: RevenueBase Database · checked Sep 24, 2026
23	Accenture Greece	Indirect evidence	Kifisia, GreeceHQ checked Sep 24, 2026	1,001-5,000	1,171 contacts →
	Indirect evidence “Η Accenture είναι ηγέτιδα εταιρεία παροχής συμβουλευτικών υπηρεσιών σε παγκόσμιο επίπεδο, δημιουργώντας απτή αξία με ταχύτητα και σε μεγάλη κλίμακα.” Source: RevenueBase Database · checked Sep 24, 2026
24	Centric Consulting	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 24, 2026	1,001-5,000	1,113 contacts →
	Indirect evidence “Committed to delivering tailored solutions and unmatched experiences, Centric Consulting is an international business and technology consulting firm that combines the benefits of…” Source: RevenueBase Database · checked Sep 24, 2026
25	Itec South Africa	Indirect evidence	Paulshof, South AfricaHQ checked Sep 24, 2026	501-1,000	1,049 contacts →
	Indirect evidence “We are strategic consultants and managed business service experts who design and implement technology solutions, empowering businesses to focus on what they do best.” Source: RevenueBase Database · checked Sep 24, 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: cyber consultancies. 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 cyber consultancies.
Partial evidence: Its own public description names part of cyber consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cyber consultancies. 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 41,963 cyber consultancies worldwide

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Cyber consultancies worldwide at a glance

As of Sep 24, 2026

34.4%Verified-email coverage

16.7%Mobile-number coverage

13.0Average contacts per company

1-10Median size (employees)

3.9%Largest-city concentration · London

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

26,831

11-50

11,295

51-200

2,760

201-500

567

501-1,000

196

1,001-5,000

152

5,001-10,000

10001+

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 cyber consultancies, 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: 40 countries, largest first: the United States, the United Kingdom, Brazil, France, Australia, Canada, Germany, Italy, Spain, the Netherlands and 30 more. Country and city lists for cyber consultancies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “cyber consultancies”. 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 cyber consultancies), 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 cyber consultancies, 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, 186,959 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 24, 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.

Cyber consultancies by location

209 lists · largest first

Every Cyber consultancies 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 cyber consultancies, 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 cyber consultancies are there worldwide?

RevenueBase identified 41,963 cyber consultancies 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?

Minsait, headquartered in Alcobendas, tops this list with the largest team on record.

Which country has the most cyber consultancies?

The United States leads with 14,778 companies, followed by the United Kingdom (4,605) and Brazil (2,508). Every cyber consultancies list by country and city is linked on this page.

Which city has the most cyber consultancies?

London leads with 1626 headquartered companies, followed by Sao Paulo (712) and Paris (628).

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 186,959 verified decision-maker contacts tracked across these 41,963 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 24, 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.