Company lists · Data refreshed September 2026

Top 25 Cybersecurity consultancy services worldwide

Name: Cybersecurity consultancy services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 40,945 companies tracked

RevenueBase identified 40,945 company matches for cybersecurity consultancy services worldwide as of September 2026 and tracks 485,183 professional contacts across them, including 146,169 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for cybersecurity consultancy services 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 21, 2026. Country and city lists for cybersecurity consultancy services 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 21, 2026 How this list was built

40,945Companies

485,183Contacts tracked

146,169Verified emails

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The 25 largest cybersecurity consultancy services worldwide

Ranked by team size

Top 25 of 40,945 company matches for cybersecurity consultancy services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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	Fortinet	Exact match	Sunnyvale, CA, United StatesHQ recorded Sep 21, 2026	10001+	14,289 contacts →
	Exact match “Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Private Sector	Exact match	United StatesHQ recorded Sep 21, 2026	n/a	12,771 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Symantec	Exact match	San Jose, CA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
4	ELM Company	Exact match	Riyadh, Saudi ArabiaHQ recorded Sep 21, 2026	1,001-5,000	6,982 contacts →
	Exact match “Elm is the leading provider of innovative secure services & solutions to both public and private sectors in Saudi Arabia.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Sophos	Exact match	Abingdon, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
6	Orange Cyberdefense	Exact match	Nanterre, FranceHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
7	Trellix	Exact match	Plano, TX, United StatesHQ recorded Sep 21, 2026	1,001-5,000	3,447 contacts →
	Exact match “Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	NRI Group	Exact match	Chiyoda-ku, JapanHQ recorded Sep 21, 2026	10001+	2,979 contacts →
	Exact match “We align our goals with our clients’ goals – a true partnership that ensures shared success.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	NIL LTD	Exact match	Ljubljana, SloveniaHQ recorded Sep 21, 2026	n/a	2,523 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	OPTIV	Exact match	Leawood, KS, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
11	Bitdefender	Exact match	Bucuresti, RomaniaHQ recorded Sep 21, 2026	1,001-5,000	2,172 contacts →
	Exact match “Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Inspira Enterprise	Exact match	Mumbai, IndiaHQ recorded Sep 21, 2026	1,001-5,000	1,773 contacts →
	Exact match “Inspira Enterprise is a global Cybersecurity & Data Analytics & AI services provider with a presence in North America, ASEAN, Middle East, India, and Africa regions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	DGS	Exact match	Rome, ItalyHQ recorded Sep 21, 2026	1,001-5,000	1,558 contacts →
	Exact match “DGS is the Italian technological partner operating as an integrated group.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	Nava Tech For Business	Exact match	Barueri, BrazilHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
15	Site سايت	Exact match	Al Nakheel, Saudi ArabiaHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
16	Sangfor Technologies	Exact match	Shenzhen, ChinaHQ recorded Sep 21, 2026	5,001-10,000	1,297 contacts →
	Exact match “Sangfor Technologies is a global leader in cybersecurity, cloud computing, and IT infrastructure, providing fully integrated and AI-driven solutions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Thales Cybersecurity Products	Exact match	Austin, TX, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
18	Guidepoint Security	Exact match	Reston, VA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
19	Imperva	Exact match	Austin, TX, United StatesHQ recorded Sep 21, 2026	10001+	1,217 contacts →
	Exact match “On Dec.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	GDT	Exact match	Dallas, TX, United StatesHQ recorded Sep 21, 2026	501-1,000	1,032 contacts →
	Exact match “As an award-winning, global IT solutions provider, we are changing the nature of transformation.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Irdeto	Exact match	Hoofddorp, NetherlandsHQ recorded Sep 21, 2026	1,001-5,000	1,026 contacts →
	Exact match “Irdeto, a CANAL+ company, is the world leader in digital platform cybersecurity, empowering businesses to innovate for a secure, connected future.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	PPC	Exact match	Trevose, PA, United StatesHQ recorded Sep 21, 2026	201-500	979 contacts →
	Exact match “PPC is now part of DSA” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Coalfire	Exact match	Chicago, IL, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
24	BCG Platinion	Exact match	Cologne, GermanyHQ recorded Sep 21, 2026	1,001-5,000	925 contacts →
	Exact match “At BCG Platinion, we leverage our expertise alongside the unique experiences of our teams to accelerate digital transformations for our clients.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Ensign Infosecurity	Exact match	SingaporeHQ recorded Sep 21, 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 21, 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 “cybersecurity consultancy services”. 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 40,945 cybersecurity consultancy services worldwide

See the full list, filter by size, metro and specialty, and access 146,169 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity consultancy services worldwide at a glance

As of Sep 21, 2026

30.1%Verified-email coverage

11.8Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

24,516

11-50

12,399

51-200

2,964

201-500

616

501-1,000

173

1,001-5,000

136

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 cybersecurity consultancy services are linked below.
What qualifies: Company records worldwide whose business descriptions match “cybersecurity consultancy services” 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 146,169 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 21, 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 consultancy services by location

237 lists · largest first

Every Cybersecurity consultancy services 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 consultancy services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity consultancy services are there worldwide?

RevenueBase identified 40,945 company matches for cybersecurity consultancy services 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?

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

Which country has the most cybersecurity consultancy services?

The United States leads with 9,820 companies, followed by India (2,836) and the United Kingdom (2,712). Every cybersecurity consultancy services list by country and city is linked on this page.

Which city has the most cybersecurity consultancy services?

London leads with 979 company records, followed by Paris (397) and Sao Paulo (383).

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 146,169 professional contacts with verified work emails tracked across these 40,945 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 21, 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.