Company lists · Data refreshed September 2026

Top 25 Cyber security consulting consultants worldwide

Name: Cyber security consulting consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 30,962 companies tracked

RevenueBase identified 30,962 company matches for cyber security consulting consultants worldwide as of September 2026 and tracks 334,745 professional contacts across them, including 95,478 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for cyber security consulting consultants 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 27, 2026. Country and city lists for cyber security consulting consultants 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 27, 2026 How this list was built

30,962Companies

334,745Contacts tracked

95,478Verified emails

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The 25 largest cyber security consulting consultants worldwide

Ranked by team size

Top 25 of 30,962 company matches for cyber security consulting consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Private Sector	Exact match	United StatesHQ recorded Sep 27, 2026	n/a	12,771 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2	Symantec	Exact match	San Jose, CA, United StatesHQ recorded Sep 27, 2026	10001+	11,169 contacts →
	Exact match “Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3	Sophos	Exact match	Abingdon, United KingdomHQ recorded Sep 27, 2026	5,001-10,000	4,925 contacts →
	Exact match “Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4	Orange Cyberdefense	Exact match	Nanterre, FranceHQ recorded Sep 27, 2026	1,001-5,000	3,673 contacts →
	Exact match “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5	OPTIV	Exact match	Leawood, KS, United StatesHQ recorded Sep 27, 2026	1,001-5,000	2,222 contacts →
	Exact match “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6	Nava Tech For Business	Exact match	Barueri, BrazilHQ recorded Sep 27, 2026	1,001-5,000	1,452 contacts →
	Exact match “Atuamos no core de empresas líderes em seus segmentos, onde tecnologia, estratégia e operação se encontram.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7	Site سايت	Exact match	Al Nakheel, Saudi ArabiaHQ recorded Sep 27, 2026	501-1,000	1,378 contacts →
	Exact match “We are established for enriching local content in designing, developing, and operating secure digital computing environments through Saudi talents, by fulfilling our role as a…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8	Thales Cybersecurity Products	Exact match	Austin, TX, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,252 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9	Guidepoint Security	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,232 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 27, 2026 · View company records in RevenueBase
10	PPC	Exact match	Trevose, PA, United StatesHQ recorded Sep 27, 2026	201-500	979 contacts →
	Exact match “PPC is now part of DSA” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11	Coalfire	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	1,001-5,000	947 contacts →
	Exact match “Coalfire is the premier Cybersecurity and Compliance Services leader for the tech, healthcare, and finance industries.(This page is maintained by Marketing.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	Ensign Infosecurity	Exact match	SingaporeHQ recorded Sep 27, 2026	501-1,000	888 contacts →
	Exact match “Ensign InfoSecurity is the largest pure-play end-to-end cybersecurity service provider in Asia.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13	Trustwave, A Levelblue Company	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	501-1,000	874 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 27, 2026 · View company records in RevenueBase
14	Cyderes	Exact match	Kansas City, MO, United StatesHQ recorded Sep 27, 2026	1,001-5,000	844 contacts →
	Exact match “Today’s threatscape is relentless.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15	SQUAD	Exact match	Paris, FranceHQ recorded Sep 27, 2026	501-1,000	803 contacts →
	Exact match “The growing threat of cyber risks, the expansion of cloud computing and the emergence of the DevOps movement are reshaping IT practices, enlighting the relevance of our vision for…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16	MTI	Exact match	Staines-upon-thames, United KingdomHQ recorded Sep 27, 2026	201-500	764 contacts →
	Exact match “MTI provides award-winning, end-to-end technology solutions and services in cyber security and data centre for over 35 years.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	Softcell Technologies Global Pvt. LTD	Exact match	Mumbai, IndiaHQ recorded Sep 27, 2026	501-1,000	763 contacts →
	Exact match “With 35 years of experience, Softcell Technologies Global is a trusted IT services provider specialising in (i) IT security and cybersecurity solutions,(ii) cloud / on-premise…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18	SISA	Exact match	Bengaluru, IndiaHQ recorded Sep 27, 2026	201-500	743 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 27, 2026 · View company records in RevenueBase
19	Lgs, An IBM Company	Exact match	Québec, QC, CanadaHQ recorded Sep 27, 2026	501-1,000	742 contacts →
	Exact match “A consulting firm providing technology solutions and advisory services to both private and public sector organizations.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20	Netrix Global	Exact match	Bannockburn, United StatesHQ recorded Sep 27, 2026	501-1,000	706 contacts →
	Exact match “Netrix Global is an engineering-led IT consultant and managed service provider with over three decades of experience.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21	Network Intelligence	Exact match	Plano, TX, United StatesHQ recorded Sep 27, 2026	501-1,000	641 contacts →
	Exact match “At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	I-Tracing	Exact match	Courbevoie, FranceHQ recorded Sep 27, 2026	1,001-5,000	639 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23	Everfox	Exact match	Herndon, United StatesHQ recorded Sep 27, 2026	1,001-5,000	636 contacts →
	Exact match “Everfox delivers trusted connectivity to protect the world's most critical environments, safeguarding the sensitive information behind decision advantage.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24	Help Ag, An E& Enterprise Company	Exact match	Dubai, United Arab EmiratesHQ recorded Sep 27, 2026	501-1,000	634 contacts →
	Exact match “Help AG, the cybersecurity arm of e & company, provides leading enterprise businesses and governments across the Middle East with strategic consultancy combined with tailored…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25	Telos Corporation	Exact match	Ashburn, VA, United StatesHQ recorded Sep 27, 2026	501-1,000	629 contacts →
	Exact match “Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “cyber security consulting consultants”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 30,962 cyber security consulting consultants worldwide

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Cyber security consulting consultants worldwide at a glance

As of Sep 27, 2026

28.5%Verified-email coverage

10.8Average contacts per company

1-10Median size (employees)

2.3%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

18,883

11-50

9,190

51-200

2,137

201-500

443

501-1,000

131

1,001-5,000

5,001-10,000

10001+

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 cyber security consulting consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “cyber security consulting consultants” 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 95,478 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 27, 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.

Cyber security consulting consultants by location

193 lists · largest first

Every Cyber security consulting consultants 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 “cyber security consulting consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cyber security consulting consultants are there worldwide?

RevenueBase identified 30,962 company matches for cyber security consulting consultants 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 cyber security consulting consultants?

The United States leads with 7,852 companies, followed by India (2,062) and the United Kingdom (1,864). Every cyber security consulting consultants list by country and city is linked on this page.

Which city has the most cyber security consulting consultants?

London leads with 710 company records, followed by Sao Paulo (322) and Paris (314).

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 95,478 professional contacts with verified work emails tracked across these 30,962 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 27, 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.