Company lists · Data refreshed September 2026

Top 25 Security infrastructure consulting companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 36,236 companies tracked

RevenueBase identified 36,236 company matches for security infrastructure consulting companies worldwide as of September 2026 and tracks 508,048 professional contacts across them, including 120,681 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for security infrastructure consulting companies 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 infrastructure consulting companies 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

36,236Companies

508,048Contacts tracked

120,681Verified emails

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The 25 largest security infrastructure consulting companies worldwide

Ranked by team size

Top 25 of 36,236 company matches for security infrastructure consulting companies 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	Symantec	Exact match	San Jose, CA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
3	AMEY	Exact match	London, United KingdomHQ recorded Sep 29, 2026	10001+	6,667 contacts →
	Exact match “Who we are: Amey is a global, integrated infrastructure consultancy and operations partner.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Convergint	Exact match	Hoffman Estates, IL, United StatesHQ recorded Sep 29, 2026	10001+	5,707 contacts →
	Exact match “Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Sophos	Exact match	Abingdon, United KingdomHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
6	Orange Cyberdefense	Exact match	Nanterre, FranceHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
7	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
8	U.S. Security Associates, INC	Exact match	Roswell, GA, United StatesHQ recorded Sep 29, 2026	10001+	3,592 contacts →
	Exact match “U.S.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	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
10	Grupo GR	Exact match	São Paulo, BrazilHQ recorded Sep 29, 2026	10001+	2,772 contacts →
	Exact match “Fundado em 1992, o GRUPO GR se consolidou no mercado por sua qualidade e seriedade na implantação e operação de soluções de segurança e serviços para diversos tipos de clientes.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	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
12	Paragon Security	Exact match	Toronto, ON, CanadaHQ recorded Sep 29, 2026	1,001-5,000	2,365 contacts →
	Exact match “Founded in 1976, Paragon Security is Ontario’s largest privately owned security company.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Andy Frain Services	Exact match	Aurora, IL, United StatesHQ recorded Sep 29, 2026	5,001-10,000	2,266 contacts →
	Exact match “Andy Frain Services.America's leading provider of integrated solutions to security and events needs for over 90 years.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	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
15	Paragon Systems INC	Exact match	Herndon, VA, United StatesHQ recorded Sep 29, 2026	10001+	1,949 contacts →
	Exact match “Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Wilson James	Exact match	Westcliff-on-sea, United KingdomHQ recorded Sep 29, 2026	5,001-10,000	1,842 contacts →
	Exact match “Wilson James provides safe, secure, customer-led solutions to more than 300 clients across the UK and Europe.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	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
18	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
19	Securitas Belgium	Exact match	Diegem, BelgiumHQ recorded Sep 29, 2026	5,001-10,000	1,419 contacts →
	Exact match “See a different world.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	World Security	Exact match	Dubai, United Arab EmiratesHQ recorded Sep 29, 2026	1,001-5,000	1,398 contacts →
	Exact match “World Security being a Semi Govt Organization provides specialist turnkey security solutions to the local market and beyond, as well as the Dubai World Group.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	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
22	First Security Group LLC	Exact match	Dubai, United Arab EmiratesHQ recorded Sep 29, 2026	5,001-10,000	1,374 contacts →
	Exact match “First Security Group LLC was founded in 2004 with the vision of His Highness, the Vice President, Prime Minister, and Ruler of Dubai, Sheikh Mohamed bin Rashid Al Maktoum.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	Imvula Quality Protection	Exact match	Woodmead, South AfricaHQ recorded Sep 29, 2026	10001+	1,340 contacts →
	Exact match “At Imvula Quality Protection, we don’t just provide security, we create peace of mind.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Sangfor Technologies	Exact match	Shenzhen, ChinaHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
25	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

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 infrastructure consulting companies”. 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 36,236 security infrastructure consulting companies worldwide

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Security infrastructure consulting companies worldwide at a glance

As of Sep 29, 2026

23.8%Verified-email coverage

14.0Average contacts per company

1-10Median size (employees)

2.2%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

19,803

11-50

11,499

51-200

3,256

201-500

866

501-1,000

319

1,001-5,000

303

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 infrastructure consulting companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “security infrastructure consulting companies” 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 120,681 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 infrastructure consulting companies by location

218 lists · largest first

Every Security infrastructure consulting companies 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 infrastructure consulting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many security infrastructure consulting companies are there worldwide?

RevenueBase identified 36,236 company matches for security infrastructure consulting companies 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 infrastructure consulting companies?

The United States leads with 7,949 companies, followed by India (2,368) and the United Kingdom (2,174). Every security infrastructure consulting companies list by country and city is linked on this page.

Which city has the most security infrastructure consulting companies?

London leads with 783 company records, followed by Sao Paulo (416) and Paris (331).

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 120,681 professional contacts with verified work emails tracked across these 36,236 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.