Company lists · Data refreshed September 2026
Top 25 Firewall and security providers worldwide
RevenueBase identified 783 firewall and security providers worldwide as of September 2026 and tracks 13,166 professional contacts across them, including 3,216 with verified work emails. The United States is the largest market and London the largest hub.
This list covers firewall and security 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 28, 2026. Country and city lists for firewall and security 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.
The 25 largest firewall and security providers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,813 contacts → | ||||
Partial evidence “Infoblox unites networking and security to deliver unmatched performance and protection.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 593 contacts → | ||||
Indirect evidence “We are a European cybersecurity company that helps businesses secure critical data and communications between systems, automated applications, and people with defensive…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 144 contacts → | ||||
Partial evidence “Créée en Juin 2002, Services Network Security est spécialisée dans la sécurisation des passerelles internet et dans les interconnexions VPN.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 141 contacts → | ||||
Partial evidence “eSoft is a leader in providing Simply Better Network Security™ to businesses of nearly any size.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 138 contacts → | ||||
Partial evidence “Cadre is a network and information security solutions provider that serves large and medium-sized firms.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 120 contacts → | ||||
Partial evidence “With over 25 years of expertise, PDI Security and Network Solutions (formerly known as Nuspire) is redefining cybersecurity and network management through intelligent unification…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 113 contacts → | ||||
Indirect evidence “Securepoint GmbH, from the Hanseatic city of Lüneburg, is the market leader in the development of professional “Unified Threat Management” solutions in Germany.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 101 contacts → | ||||
Partial evidence “QOS Technology is a company of young, vibrant, and geeky folks with maverick idiosyncrasies who continues to stay ahead of the latest innovations in security, developing robust…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 98 contacts → | ||||
Partial evidence “Zeus Fire & Security was established in 2021 to build a national network of fire protection and security providers recognized for execution excellence across a variety of service…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 96 contacts → | ||||
Partial evidence “Rohde & Schwarz Cybersecurity is a leading IT security company that protects companies and public institutions around the world against cyberattacks.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 82 contacts → | ||||
Indirect evidence “Sophos Technologies Pvt.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 78 contacts → | ||||
Partial evidence “Securicom is a leading local IT security company offering an end-to-end range of cloud-based IT security services.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 75 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 75 contacts → | ||||
Indirect evidence “Secure networks start here.™ Netgate is focused on delivering secure high-performance network connectivity for everyone.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 69 contacts → | ||||
Indirect evidence “Link11 is a leading European manufacturer of cloud-based cybersecurity solutions that helps businesses and public authorities in critical infrastructure stay online, no matter…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 69 contacts → | ||||
Indirect evidence “Trinity Cyber is an international cybersecurity firm that invents and operates innovative solutions to the most difficult cybersecurity challenges.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 69 contacts → | ||||
Indirect evidence “GajShield Infotech (I) Pvt.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 69 contacts → | ||||
Indirect evidence “Empresa especializada en Soluciones de Seguridad Perimetral y Data Center basadas en UTM y NGFW, Soluciones de Redes & Networking (Switching & Routing), Soluciones de Redes…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 68 contacts → | ||||
Partial evidence “ABOUT US Zenith Comp Co, Ltd, established in 1995, supplies network security system and application development technology and support services to businesses, industry, and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 58 contacts → | ||||
Indirect evidence “Australia’s leading developer and manufacturer of advanced cybersecurity technology, Red Piranha delivers next-generation cyber defence solutions designed to protect modern…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 56 contacts → | ||||
Partial evidence “Established in 2001 as a member of Phintraco Group, Aplikas Servis Persona has been providing customers with word-class IT security solutions to network security issues as well as…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 51 contacts → | ||||
Partial evidence “IT Security Specialists All your security needs from Antivirus to Pen Test and Appliances!” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 49 contacts → | ||||
Indirect evidence “Ray, headquartered in the vibrant tech hub of Singapore, is at the forefront of Enterprise Secure Networking Solutions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 48 contacts → | ||||
Partial evidence “Locknet® Managed IT Services, an EO Johnson company, is a top managed security service provider (MSSP) in the nation.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 46 contacts → | ||||
Partial evidence “Access 2 Networks is Canada’s premier network security provider, dedicated to helping organizations manage and protect their networks against internal and external security…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: firewall and security providers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names firewall and security providers.
- Partial evidence
- Its own public description names part of firewall and security providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name firewall and security providers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 783 firewall and security providers worldwide
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Firewall and security providers worldwide at a glance
As of Sep 28, 2026Companies by employee count
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 firewall and security 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 firewall and security providers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “firewall and security 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 firewall and security 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 firewall and security 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, 3,216 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 28, 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.
Firewall and security providers by location
3 lists · largest firstEvery Firewall and security providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 firewall and security 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 firewall and security providers are there worldwide?
RevenueBase identified 783 firewall and security 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?
Infoblox, headquartered in Santa Clara, tops this list with the largest team on record.
Which country has the most firewall and security providers?
The United States leads with 153 companies, followed by India (65) and Brazil (30). Every firewall and security providers list by country and city is linked on this page.
Which city has the most firewall and security providers?
London leads with 12 headquartered companies, followed by Tehran (12) and Sao Paulo (7).
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 3,216 verified decision-maker contacts tracked across these 783 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 28, 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.