Company lists · Data refreshed November 2026

Top 25 Telecommunications security companies worldwide

Name: Telecommunications security companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 12,110 companies tracked

RevenueBase identified 12,110 company matches for telecommunications security companies worldwide as of November 2026 and tracks 301,872 professional contacts across them, including 54,670 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for telecommunications security 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 November 5, 2026. Country and city lists for telecommunications security 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 Nov 5, 2026 How this list was built

12,110Companies

301,872Contacts tracked

54,670Verified emails

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The 25 largest telecommunications security companies worldwide

Ranked by team size

Top 25 of 12,110 company matches for telecommunications security companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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	Prosegur	Exact match	Madrid, SpainHQ recorded Nov 5, 2026	10001+	46,086 contacts →
	Exact match “50 Years of Excellence: Experience, Innovation, and Commitment to Safety.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Certis	Exact match	SingaporeHQ recorded Nov 5, 2026	10001+	5,040 contacts →
	Exact match “Certis is a leading advanced integrated security organisation that develops and delivers multi-disciplinary smart security and integrated services.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	Viavi Solutions	Exact match	Chandler, AZ, United StatesHQ recorded Nov 5, 2026	1,001-5,000	4,595 contacts →
	Exact match “VIAVI Solutions (NASDAQ: VIAV) is a global leader in both network and service enablement and optical security performance products and solutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	U.S. Security Associates, INC	Exact match	Roswell, UT, United StatesHQ recorded Nov 5, 2026	10001+	4,263 contacts →
	Exact match “U.S.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	Sicuritalia S.P.A	Exact match	Milan, ItalyHQ recorded Nov 5, 2026	10001+	3,593 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 · Nov 5, 2026 · View company records in RevenueBase
6	Arctic Wolf	Exact match	Eden Prairie, United StatesHQ recorded Nov 5, 2026	1,001-5,000	3,355 contacts →
	Exact match “Every year new technologies, vendors, and solutions emerge-yet despite this constant innovation, high-profile breaches are all over the headlines.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	GTT	Exact match	Arlington, VA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	3,071 contacts →
	Exact match “GTT is a leading networking and security as a service provider for multinational organizations, simply and securely connecting people and machines to data and applications –…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Alcatel-Lucent Enterprise	Exact match	92707 Colombes, GermanyHQ recorded Nov 5, 2026	1,001-5,000	2,980 contacts →
	Exact match “Alcatel-Lucent Enterprise provides secure networking and communication solutions which enable organizations and industries to accelerate their operational efficiencies and…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	NIL LTD	Exact match	Ljubljana, SloveniaHQ recorded Nov 5, 2026	n/a	2,639 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 · Nov 5, 2026 · View company records in RevenueBase
10	Pronet Security Services	Exact match	Istanbul, TürkiyeHQ recorded Nov 5, 2026	1,001-5,000	2,367 contacts →
	Exact match “Pronet is the leading electronic security company that offers residential and commercial security solutions in Turkey.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Wilson Security	Exact match	Essendon Fields, AustraliaHQ recorded Nov 5, 2026	5,001-10,000	1,964 contacts →
	Exact match “At Wilson Security, we are committed to building a safer future for everyone.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Paragon Systems INC	Exact match	Herndon, VA, United StatesHQ recorded Nov 5, 2026	10001+	1,928 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 · Nov 5, 2026 · View company records in RevenueBase
13	Securitas Canada	Exact match	North York, ON, CanadaHQ recorded Nov 5, 2026	5,001-10,000	1,631 contacts →
	Exact match “Over 90 years of protecting the things that matter, we’ve seen more than most.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	Weiser Security Services, INC	Exact match	New Orleans, LA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,540 contacts →
	Exact match “Weiser Security Services is the 11th largest security service provider in the U.S.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Imvula Quality Protection	Exact match	Woodmead, South AfricaHQ recorded Nov 5, 2026	10001+	1,460 contacts →
	Exact match “At Imvula Quality Protection, we don’t just provide security, we create peace of mind.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Securitas Belgium	Exact match	Diegem, BelgiumHQ recorded Nov 5, 2026	5,001-10,000	1,449 contacts →
	Exact match “See a different world.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	SALAM	Exact match	Riyadh, Saudi ArabiaHQ recorded Nov 5, 2026	1,001-5,000	1,278 contacts →
	Exact match “Etihad Salam Telecom Company (Salam) is a leading Saudi telecommunications provider offering a comprehensive portfolio of next-generation solutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Pt. Mastersystem Infotama	Exact match	Dki Jakarta, IndonesiaHQ recorded Nov 5, 2026	501-1,000	1,198 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	St. Moritz Security Services, INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 5, 2026	5,001-10,000	1,168 contacts →
	Exact match “Founded in 1982, St.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Zelenza	Exact match	Madrid, SpainHQ recorded Nov 5, 2026	1,001-5,000	1,164 contacts →
	Exact match “En Zelenza somos líderes en servicios integrados TIC, Ingeniería de Redes Telco, Defensa y Seguridad y Customer Experience.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	Seguritech	Exact match	Mexico City, MexicoHQ recorded Nov 5, 2026	1,001-5,000	1,159 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 · Nov 5, 2026 · View company records in RevenueBase
22	Onet Sécurité	Exact match	Marseille, FranceHQ recorded Nov 5, 2026	10001+	1,142 contacts →
	Exact match “La proposition de valeur d'Onet dans la sécurité se fonde sur - son expertise sécurité et sa capacité à analyser les besoins et risques propres à ses clients- sa parfaite maîtrise…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Irdeto	Exact match	Hoofddorp, MN, NetherlandsHQ recorded Nov 5, 2026	1,001-5,000	1,091 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 · Nov 5, 2026 · View company records in RevenueBase
24	Securitas Perú	Exact match	Magdalena Del Mar, PeruHQ recorded Nov 5, 2026	1,001-5,000	1,034 contacts →
	Exact match “Securitas es socio líder en soluciones de protección inteligente.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Wds-Sicap	Exact match	Baar, SwitzerlandHQ recorded Nov 5, 2026	n/a	870 contacts →
	Exact match “We are leading provider of telecom business intelligence and device management solutions.” Recorded in the RevenueBase company graph · Nov 5, 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 “telecommunications security 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 12,110 telecommunications security companies worldwide

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Telecommunications security companies worldwide at a glance

As of Nov 5, 2026

18.1%Verified-email coverage

24.9Average contacts per company

11-50Median size (employees)

1.7%Largest-city concentration · Sao Paulo

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

4,943

11-50

4,446

51-200

1,612

201-500

484

501-1,000

198

1,001-5,000

227

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 telecommunications security companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “telecommunications security 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 54,670 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 November 5, 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.

Telecommunications security companies by location

77 lists · largest first

Every Telecommunications security 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 “telecommunications security companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecommunications security companies are there worldwide?

RevenueBase identified 12,110 company matches for telecommunications security companies worldwide as of November 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?

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

Which country has the most telecommunications security companies?

The United States leads with 1,911 companies, followed by Brazil (961) and India (608). Every telecommunications security companies list by country and city is linked on this page.

Which city has the most telecommunications security companies?

Sao Paulo leads with 205 company records, followed by London (136) and Dubai (110).

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 54,670 professional contacts with verified work emails tracked across these 12,110 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 November 5, 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.