Company lists · Data refreshed September 2026
Top 25 Firewall and security appliance providers worldwide
RevenueBase identified 310 firewall and security appliance providers worldwide as of September 2026 and tracks 3,584 professional contacts across them, including 431 with verified work emails. The United States is the largest market and Tehran the largest hub.
This list covers firewall and security appliance 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 appliance 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 appliance providers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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. | |||||
| 2 | 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. | |||||
| 3 | 82 contacts → | ||||
Indirect evidence “Sophos Technologies Pvt.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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. | |||||
| 5 | 69 contacts → | ||||
Indirect evidence “GajShield Infotech (I) Pvt.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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. | |||||
| 7 | 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. | |||||
| 8 | 51 contacts → | ||||
Strong 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. | |||||
| 9 | 44 contacts → | ||||
Partial evidence “WireFilter, develops and markets network security and parental control solutions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 43 contacts → | ||||
Partial evidence “Firewalls.com offers cutting edge products and services designed to provide cost-effective IT solutions in the age of information.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 42 contacts → | ||||
Indirect evidence “İşletmenizi ve İtibarınızı Siber Tehditlere Karşı Koruyoruz!” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 39 contacts → | ||||
Partial evidence “At OSTEC we crave building solutions for modern information security challenges.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 37 contacts → | ||||
Indirect evidence “macmon, one of Belden’s connected brands, makes complete network transparency and control possible by monitoring and protecting against unauthorized access.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 33 contacts → | ||||
Partial evidence “The AnexGATE Unified Security Gateway (USG) relies on an intelligent layered security architecture to proactively defend against complex emerging threats.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 29 contacts → | ||||
Partial evidence “TeamF1 is a provider of networking and security software for embedded devices with experience spanning close to two decades.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 28 contacts → | ||||
Indirect evidence “Dataway, Inc.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 28 contacts → | ||||
Indirect evidence “Valyrian System, Inc.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 23 contacts → | ||||
Partial evidence “Firewalla is dedicated to making accessible cybersecurity solutions that are simple, affordable, and powerful.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 22 contacts → | ||||
Strong evidence “Protectli is a leading provider of network security hardware, offering innovative solutions for firewalls, routers, NAS, VPNs, and more.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 22 contacts → | ||||
Partial evidence “Secucloud GmbH, a proven SASE platform provider, delivering network security from the cloud is a wholly-owned subsidiary of Aryaka Networks.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 20 contacts → | ||||
Partial evidence “The Cloud Group delivers simplified cybersecurity, uninterrupted operations and enhanced productivity with the iShield, a smart access Unified Threat Management firewall.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 16 contacts → | ||||
Partial evidence “Corsa Security is the leader in scaling network security with the first turnkey network security virtualization platform that simplifies how large enterprises and service…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 16 contacts → | ||||
Indirect evidence “Somos una empresa especializada en ciberseguridad.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 15 contacts → | ||||
Partial evidence “Ingate® Systems develops firewall technology to enable global SIP- and WebRTC-based person-to-person communication such as SIP trunking, IP telephony, presence, Instant Messaging…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 15 contacts → | ||||
Partial evidence “Calyptix Security helps small and medium offices secure their networks so they can raise profits, protect investments, and control technology.” 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 appliance 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 appliance providers.
- Partial evidence
- Its own public description names part of firewall and security appliance 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 appliance 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 310 firewall and security appliance providers worldwide
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Firewall and security appliance 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 appliance 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 appliance providers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “firewall and security appliance 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 appliance 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 appliance 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, 431 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 appliance providers by location
1 lists · largest firstEvery Firewall and security appliance 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 appliance 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 appliance providers are there worldwide?
RevenueBase identified 310 firewall and security appliance 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?
ESOFT, headquartered in Broomfield, tops this list with the largest team on record.
Which country has the most firewall and security appliance providers?
The United States leads with 60 companies. Every firewall and security appliance providers list by country and city is linked on this page.
Which city has the most firewall and security appliance providers?
Tehran leads with 7 headquartered companies, followed by Sao Paulo (6) and London (4).
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 431 verified decision-maker contacts tracked across these 310 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.