Company lists · Data refreshed September 2026

Top 25 Security integration service providers worldwide

RevenueBase identified 21,655 security integration service providers worldwide as of September 2026 and tracks 440,371 professional contacts across them, including 119,695 with verified work emails. The United States is the largest market and London the largest hub.

This list covers security integration service providers worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026. Country and city lists for security integration service providers follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
21,655Companies
440,371Contacts tracked
119,695Verified emails
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The 25 largest security integration service providers worldwide

Ranked by team size
Top 25 of 21,655 security integration service providers worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to security integration service providers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSanta Clara, CA, United StatesHQ checked Sep 29, 202610001+18,431 contacts →

Indirect evidence

“Palo Alto Networks, the global cybersecurity leader, is shaping the cloud-centric future with technology that is transforming the way people and organizations operate.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceSunnyvale, CA, United StatesHQ checked Sep 29, 202610001+14,289 contacts →

Indirect evidence

“Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceUnited StatesHQ checked Sep 29, 2026n/a12,771 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceSan Jose, CA, United StatesHQ checked Sep 29, 202610001+11,169 contacts →

Partial evidence

“Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceStockholm, SwedenHQ checked Sep 29, 202610001+6,335 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceHoffman Estates, IL, United StatesHQ checked Sep 29, 202610001+5,707 contacts →

Indirect evidence

“Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceYoyogi, JapanHQ checked Sep 29, 20265,001-10,0004,942 contacts →

Indirect evidence

“We’re a global cybersecurity leader, helping to make the world safe for exchanging digital information.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceAbingdon, United KingdomHQ checked Sep 29, 20265,001-10,0004,925 contacts →

Indirect evidence

“Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceIssy-les-moulineaux, FranceHQ checked Sep 29, 202610001+3,843 contacts →

Partial evidence

“Securitas vous apporte son savoir‑faire et ses compétences dans la sécurisation de votre entreprise.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceNanterre, FranceHQ checked Sep 29, 20261,001-5,0003,673 contacts →

Indirect evidence

“Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceMadrid, SpainHQ checked Sep 29, 202610001+3,620 contacts →

Partial evidence

“Securitas, Soluciones de Seguridad a medida Nuestro liderazgo en conocimientos de seguridad nos ha permitido desarrollar una estrategia basada en tres pilares fundamentales…”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceRoswell, GA, United StatesHQ checked Sep 29, 202610001+3,592 contacts →

Indirect evidence

“U.S.”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceMilano, ItalyHQ checked Sep 29, 202610001+3,387 contacts →

Partial evidence

“Il Gruppo Sicuritalia, con oltre 18.500 dipendenti, è la più grande azienda italiana ed il secondo player privato europeo in ambito Security.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceEden Prairie, MN, United StatesHQ checked Sep 29, 20261,001-5,0003,145 contacts →

Indirect evidence

“Every year new technologies, vendors, and solutions emerge-yet despite this constant innovation, high-profile breaches are all over the headlines.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceFoster City, CA, United StatesHQ checked Sep 29, 20261,001-5,0003,058 contacts →

Partial evidence

“Qualys, Inc.(NASDAQ: QLYS) is a leading provider of disruptive cloud-based security, compliance and IT solutions with more than subscription customers worldwide, including a…”

Source: RevenueBase Database · checked Sep 29, 2026
16Partial evidenceArlington, VA, United StatesHQ checked Sep 29, 20261,001-5,0002,933 contacts →

Partial evidence

“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 –…”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceAurora, IL, United StatesHQ checked Sep 29, 20265,001-10,0002,266 contacts →

Partial evidence

“Andy Frain Services.America's leading provider of integrated solutions to security and events needs for over 90 years.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceLeawood, KS, United StatesHQ checked Sep 29, 20261,001-5,0002,222 contacts →

Indirect evidence

“Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.”

Source: RevenueBase Database · checked Sep 29, 2026
19Partial evidenceEssendon Fields, AustraliaHQ checked Sep 29, 20265,001-10,0001,813 contacts →

Partial evidence

“At Wilson Security, we are committed to building a safer future for everyone.”

Source: RevenueBase Database · checked Sep 29, 2026
20Partial evidenceNorthampton, United KingdomHQ checked Sep 29, 202610001+1,508 contacts →

Partial evidence

“We are an intelligence-led security business.”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceDiegem, BelgiumHQ checked Sep 29, 20265,001-10,0001,419 contacts →

Indirect evidence

“See a different world.”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceRomeoville, IL, United StatesHQ checked Sep 29, 20261,001-5,0001,406 contacts →

Partial evidence

“As of May 2016, Protection 1 and ADT merged together to become the leading company in the electronic security industry.”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceSão Paulo, BrazilHQ checked Sep 29, 20265,001-10,0001,361 contacts →

Indirect evidence

“O Grupo Comando G8 é referência nacional na implantação e operação de soluções integradas em segurança e serviços.”

Source: RevenueBase Database · checked Sep 29, 2026
24Partial evidenceWoodmead, South AfricaHQ checked Sep 29, 202610001+1,340 contacts →

Partial evidence

“At Imvula Quality Protection, we don’t just provide security, we create peace of mind.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceCali, ColombiaHQ checked Sep 29, 202610001+1,328 contacts →

Indirect evidence

“Somos una empresa de seguridad integral, incorporando la tecnología y la innovación como herramientas para asegurar la sostenibilidad de las organizaciones, con un equipo humano…”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 21,655 security integration service providers worldwide

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Security integration service providers worldwide at a glance

As of Sep 29, 2026
27.2%Verified-email coverage
20.3Average contacts per company
11-50Median size (employees)
1.6%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
9,965
11-50
7,885
51-200
2,439
201-500
676
501-1,000
240
1,001-5,000
275
5,001-10,000
50
10001+
53

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among security integration service providers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for security integration service providers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “security integration service providers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names security integration service providers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among security integration service providers, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 119,695 across the full list. 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.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Security integration service providers by location

132 lists · largest first

Every Security integration service providers 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names security integration service providers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many security integration service providers are there worldwide?

RevenueBase identified 21,655 security integration service providers worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Palo Alto Networks, headquartered in Santa Clara, tops this list with the largest team on record.

Which country has the most security integration service providers?

The United States leads with 4,214 companies, followed by India (1,636) and the United Kingdom (1,264). Every security integration service providers list by country and city is linked on this page.

Which city has the most security integration service providers?

London leads with 343 headquartered companies, followed by Sao Paulo (264) and Dubai (237).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 119,695 verified decision-maker contacts tracked across these 21,655 companies.

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 Smart Search, 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.