Company lists · Data refreshed September 2026

Top 25 Security transformation consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 22,558 companies tracked

RevenueBase identified 22,558 company matches for security transformation consulting firms worldwide as of September 2026 and tracks 280,838 professional contacts across them, including 71,354 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for security transformation consulting firms 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 security transformation consulting firms 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

22,558Companies

280,838Contacts tracked

71,354Verified emails

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The 25 largest security transformation consulting firms worldwide

Ranked by team size

Top 25 of 22,558 company matches for security transformation consulting firms 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Private Sector	Exact match	United StatesHQ recorded Sep 29, 2026	n/a	12,771 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Automated Systems H.K. Limited	Exact match	Shatin, Hong KongHQ recorded Sep 29, 2026	1,001-5,000	4,078 contacts →
	Exact match “Established in 1973, ASL (HKEX: 771) accelerates the success of leading organizations by building a bridge connecting innovative technology to the business environment.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Securitas Seguridad España	Exact match	Madrid, SpainHQ recorded Sep 29, 2026	10001+	3,620 contacts →
	Exact match “Securitas, Soluciones de Seguridad a medida Nuestro liderazgo en conocimientos de seguridad nos ha permitido desarrollar una estrategia basada en tres pilares fundamentales…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Sicuritalia S.P.A	Exact match	Milano, ItalyHQ recorded Sep 29, 2026	10001+	3,387 contacts →
	Exact match “Il Gruppo Sicuritalia, con oltre 18.500 dipendenti, è la più grande azienda italiana ed il secondo player privato europeo in ambito Security.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Security Industry Specialists	Exact match	Culver City, CA, United StatesHQ recorded Sep 29, 2026	5,001-10,000	2,500 contacts →
	Exact match “The industry leader in security, Security Industry Specialists offers unique solutions to Fortune 500 companies, international events, and celebrity clients.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	OPTIV	Exact match	Leawood, KS, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
7	Forcepoint	Exact match	Austin, TX, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,636 contacts →
	Exact match “Forcepoint simplifies security for global businesses and governments.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Icts Europe	Exact match	Bp12936, FranceHQ recorded Sep 29, 2026	10001+	1,455 contacts →
	Exact match “ICTS Europe is Europe’s leading security specialist.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Nava Tech For Business	Exact match	Barueri, BrazilHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
10	Site سايت	Exact match	Al Nakheel, Saudi ArabiaHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
11	Trace3	Exact match	Irvine, CA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,345 contacts →
	Exact match “Trace3 delivers business transformation.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Thales Cybersecurity Products	Exact match	Austin, TX, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
13	Guidepoint Security	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
14	Trigyn Technologies	Exact match	Mumbai, IndiaHQ recorded Sep 29, 2026	1,001-5,000	1,230 contacts →
	Exact match “We're re-engineering the way business is done.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Brosnan Risk Consultants	Exact match	Pearl River, NY, United StatesHQ recorded Sep 29, 2026	5,001-10,000	1,050 contacts →
	Exact match “Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Seguritech	Exact match	Ciudad De Mexico, MexicoHQ recorded Sep 29, 2026	1,001-5,000	1,041 contacts →
	Exact match “A lo largo de 30 años, hemos incursionado y evolucionado en distintas áreas atendiendo en el continente americano a clientes privados, corporativos y sector gobierno.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	BCG Platinion	Exact match	Cologne, GermanyHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
18	Ensign Infosecurity	Exact match	SingaporeHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
19	Trustwave, A Levelblue Company	Exact match	Chicago, IL, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
20	FIME	Exact match	Paris, FranceHQ recorded Sep 29, 2026	501-1,000	848 contacts →
	Exact match “We enable our clients to create and successfully launch secure solutions across payments, smart mobility, and digital identity.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Cyderes	Exact match	Kansas City, MO, United StatesHQ recorded Sep 29, 2026	1,001-5,000	844 contacts →
	Exact match “Today’s threatscape is relentless.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Acensi	Exact match	Courbevoie, FranceHQ recorded Sep 29, 2026	1,001-5,000	844 contacts →
	Exact match “You will be part of ACENSI network: 1650 co-workers involved in IS transformation projects at our clients through our multisectoral expertise.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	Nusummit	Exact match	Mumbai, IndiaHQ recorded Sep 29, 2026	1,001-5,000	812 contacts →
	Exact match “As NuSummit, we’ve solidified our position as a premier provider of cutting-edge digital transformation and cybersecurity solutions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	SQUAD	Exact match	Paris, FranceHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
25	Securitas Norge	Exact match	Oslo, NorwayHQ recorded Sep 29, 2026	5,001-10,000	792 contacts →
	Exact match “Securitas AS er det største og eldste sikkerhetsselskapet i Norge.” Recorded in the RevenueBase company graph · Sep 29, 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 “security transformation consulting firms”. 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 22,558 security transformation consulting firms worldwide

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Security transformation consulting firms worldwide at a glance

As of Sep 29, 2026

25.4%Verified-email coverage

12.4Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

13,431

11-50

6,708

51-200

1,701

201-500

416

501-1,000

123

1,001-5,000

108

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 security transformation consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “security transformation consulting firms” 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 71,354 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.

Security transformation consulting firms by location

154 lists · largest first

Every Security transformation 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 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 “security transformation consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many security transformation consulting firms are there worldwide?

RevenueBase identified 22,558 company matches for security transformation consulting firms 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 security transformation consulting firms?

The United States leads with 5,391 companies, followed by the United Kingdom (1,390) and India (1,364). Every security transformation consulting firms list by country and city is linked on this page.

Which city has the most security transformation consulting firms?

London leads with 532 company records, followed by Paris (284) and Sao Paulo (255).

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 71,354 professional contacts with verified work emails tracked across these 22,558 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.