Company lists · Data refreshed October 2026

Top 25 Industrial firewall manufacturers based in the United States

RevenueBase identified 47 company matches for industrial firewall manufacturers associated with the United States as of October 2026 and tracks 4,045 professional contacts across them, including 926 with verified work emails. New York is the largest hub.

This list covers company matches for industrial firewall manufacturers associated with the United States, 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 October 16, 2026.

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 Oct 16, 2026 How this list was built
47Companies
4,045Contacts tracked
926Verified emails
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The 25 largest industrial firewall manufacturers based in the United States

Ranked by team size
Top 25 of 47 company matches for industrial firewall manufacturers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 16, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchHouston, TX, United StatesHQ recorded Oct 16, 2026201-5001,314 contacts →

Exact match

“PAS, part of Hexagon's Asset Lifecycle Intelligence division, delivers software solutions that prevent, detect, & remediate cyber threats, reduce process safety risks, and…”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Oct 16, 2026501-1,000750 contacts →

Exact match

“Claroty has redefined cyber-physical systems (CPS) protection with an unrivaled industry-centric platform built to secure mission-critical infrastructure.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
3Exact matchHanover, MD, United StatesHQ recorded Oct 16, 2026501-1,000629 contacts →

Exact match

“Dragos provides the most effective OT cybersecurity technology for industrial and critical infrastructure to deliver on our global mission: to safeguard civilization.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
4Exact matchAnoka, MN, United StatesHQ recorded Oct 16, 202610001+618 contacts →

Exact match

“nVent HOFFMAN leading designer and manufacturer of systems that safely and reliably protect the electronic controls and mission critical electrical systems in industrial, data…”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
5Exact matchChristiansburg, VA, United StatesHQ recorded Oct 16, 202651-200113 contacts →

Exact match

“Foxguard delivers comprehensive OT Cyber Security and Compute Solutions tailored to meet the unique needs of critical infrastructures.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
6Exact matchAustin, TX, United StatesHQ recorded Oct 16, 202651-20095 contacts →

Exact match

“Dispel delivers security that makes industrial operations run faster.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
7Exact matchFoxborough, MA, United StatesHQ recorded Oct 16, 202651-20055 contacts →

Exact match

“Industrial Defender protects the world’s critical infrastructure from cyberattacks.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
8Exact matchChicago, MO, United StatesHQ recorded Oct 16, 202651-20055 contacts →

Exact match

“Verve Industrial Protection has ensured reliable and secure industrial control systems for 30 years.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
9Exact matchVienna, VA, United StatesHQ recorded Oct 16, 202611-5040 contacts →

Exact match

“Corsha securely connects the operational systems that run our world.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
10Exact matchFairfax, United StatesHQ recorded Oct 16, 202611-5029 contacts →

Exact match

“InfraShield is a U.S-based cyber-physical security company specializing in the protection of critical infrastructure systems across OT and IT environments.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
11Exact matchNew York, NY, United StatesHQ recorded Oct 16, 202651-20024 contacts →

Exact match

“SCADAfence is the global technology leader in OT & IoT cybersecurity.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Oct 16, 202611-5023 contacts →

Exact match

“At Armexa, we protect what matters most.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
13Exact matchSan Jose, CA, United StatesHQ recorded Oct 16, 202611-5022 contacts →

Exact match

“Firewalla is dedicated to making accessible cybersecurity solutions that are simple, affordable, and powerful.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
14Exact matchVista, CA, United StatesHQ recorded Oct 16, 202611-5020 contacts →

Exact match

“Protectli is a leading provider of network security hardware, offering innovative solutions for firewalls, routers, NAS, VPNs, and more.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
15Exact matchMountain View, CA, United StatesHQ recorded Oct 16, 202611-5019 contacts →

Exact match

“BlastWave BlastWave prevents industrial cyberattacks.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
16Exact matchSeattle, CA, United StatesHQ recorded Oct 16, 202611-5016 contacts →

Exact match

“Galvanick protects the industrial world against cyber attacks.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
17Exact matchMclean, VA, United StatesHQ recorded Oct 16, 202611-5010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
18Exact matchShelton, CT, United StatesHQ recorded Oct 16, 202611-5010 contacts →

Exact match

“Veridify Security provides real-time cybersecurity protection for building automation controls, smart buildings, industrial automation controls, ICS, and IIoT devices.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
19Exact matchColumbia, MD, United StatesHQ recorded Oct 16, 20261-109 contacts →

Exact match

“Zuul provides OT Security For Real‑World Buildings And Cyber‑Physical Systems.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
20Exact matchDallas, TX, United StatesHQ recorded Oct 16, 20261-105 contacts →

Exact match

“Enaxy was founded in 2020 by team members who are Industrial Automation and Control Systems (IACS) technologists and former asset owners who have spent their careers protecting…”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
21Exact matchNew York, United StatesHQ recorded Oct 16, 202651-2005 contacts →

Exact match

“Indegy, a leader in industrial cyber security, protects industrial control system (ICS) networks from cyber threats, malicious insiders and human error.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
22Exact matchAustin, TX, United StatesHQ recorded Oct 16, 20261-105 contacts →

Exact match

“Critical Infrastructure Cybersecurity + Control”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
23Exact matchAnn Arbor, MI, United StatesHQ recorded Oct 16, 202611-503 contacts →

Exact match

“Veracity delivers a resilient, secure industrial network that provides an on-premises, centralized configuration, control, and monitoring solution that tracks all connected…”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
24Exact matchKaty, TX, United StatesHQ recorded Oct 16, 20261-103 contacts →

Exact match

“Kelligent is a technology company that specializes in network security with an emphasis on cybersecurity for corporate and process control networks.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
25Exact matchMinneapolis, MN, United StatesHQ recorded Oct 16, 20261-101 contacts →

Exact match

“Providing advanced OT/ICS Network Security and Cybersecurity Products and Services”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase

Showing 25 of 47 industrial firewall manufacturers based in the United States

See the full list, filter by size, metro and specialty, and access 926 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial firewall manufacturers based in the United States at a glance

As of Oct 16, 2026
22.9%Verified-email coverage
86.1Average contacts per company
11-50Median size (employees)
10.6%Largest-city concentration · New York
Oct 16, 2026Page data refreshed

Companies by employee count

1-10
15
11-50
18
51-200
8
201-500
1
501-1,000
4
10001+
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 47 companies.

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.
What qualifies
Company records associated with the United States whose business descriptions match “industrial firewall manufacturers” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 926 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 October 16, 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.

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 “industrial firewall manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial firewall manufacturers are there based in the United States?

RevenueBase identified 47 company matches for industrial firewall manufacturers associated with the United States as of October 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?

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

Which city has the most industrial firewall manufacturers?

New York leads with 5 company records, followed by San Jose (3) and Austin (2).

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 926 professional contacts with verified work emails tracked across these 47 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 October 16, 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.