Company lists · Data refreshed September 2026
Top 25 Ot network security companies based in the United States
RevenueBase identified 293 company matches for ot network security companies associated with the United States as of September 2026 and tracks 11,044 professional contacts across them, including 5,011 with verified work emails. Houston is the largest hub.
This list covers company matches for ot network security companies 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 September 29, 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.
The 25 largest ot network security companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,813 contacts → | ||||
Exact match “Infoblox unites networking and security to deliver unmatched performance and protection.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 2 | 1,231 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 · Sep 29, 2026 · View company records in RevenueBase | |||||
| 3 | 1,181 contacts → | ||||
Exact match “As AI-driven vulnerability and exploitation accelerate attack velocity to machine speed, Forescout is a foundational cyber defense layer that allows organizations to segment and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 4 | 725 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 · Sep 29, 2026 · View company records in RevenueBase | |||||
| 5 | 551 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 · Sep 29, 2026 · View company records in RevenueBase | |||||
| 6 | 375 contacts → | ||||
Exact match “We protect the world’s critical infrastructure from cyber threats.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 7 | 276 contacts → | ||||
Exact match “In the ever-growing world of Cloud Computing, Big Data and the Internet of Things, NIKSUN® is the industry leader in making the unknown known.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 8 | 239 contacts → | ||||
Exact match “CUJO AI® is the global leader of cutting-edge cybersecurity and network intelligence solutions that enable network operators globally to improve the digital life protection of…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 9 | 230 contacts → | ||||
Exact match “Hillstone Networks’ Integrative Cyber Security approach delivers coverage, control, and consolidation to secure digital transformation for more than enterprises worldwide.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 10 | 202 contacts → | ||||
Exact match “Stone Security has been driving the implementation of network-based surveillance, access control and intrusion systems for over 15 years.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 11 | 188 contacts → | ||||
Exact match “NextGen Security is a security systems integrator that offers industrial companies best in class industry knowledge, engineering design, implementation, management and on-going…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 12 | 167 contacts → | ||||
Exact match “We believe resilience depends on minimizing and managing the increasing risks facing the critical infrastructure and industrial systems that support our country, companies, and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 13 | 138 contacts → | ||||
Exact match “Cadre is a network and information security solutions provider that serves large and medium-sized firms.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 14 | 129 contacts → | ||||
Exact match “Former military officers who stood up U.S.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 15 | 116 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 · Sep 29, 2026 · View company records in RevenueBase | |||||
| 16 | 106 contacts → | ||||
Exact match “ACET SOLUTIONS is a global OT Cybersecurity and Digital Transformation company serving the critical infrastructure industries.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 17 | 86 contacts → | ||||
Exact match “Dispel delivers security that makes industrial operations run faster.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 18 | 69 contacts → | ||||
Exact match “Verve Industrial Protection has ensured reliable and secure industrial control systems for 30 years.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 19 | 65 contacts → | ||||
Exact match “RevelSI is a global cybersecurity, AI, software, and infrastructure services organization.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 20 | 57 contacts → | ||||
Exact match “We operate at the intersection of network engineering and cybersecurity, providing secure, scalable, and high-performing architectures for our customers.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 21 | 53 contacts → | ||||
Exact match “Phosphorus, a Dragos company, is the leading xIoT security and management platform that proactively manages the expanding IoT, OT, and IoMT attack surface.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 22 | 52 contacts → | ||||
Exact match “RED Group provides end-to-end Operational Technology & Industrial Control Systems (OT/ICS) solutioning and delivery expertise, from conceptual consulting, through detailed…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 23 | 51 contacts → | ||||
Exact match “Industrial Defender protects the world’s critical infrastructure from cyberattacks.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 24 | 38 contacts → | ||||
Exact match “Are You Ready to Protect Your Business with the Best Cybersecurity Solutions?” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 25 | 37 contacts → | ||||
Exact match “Corsha securely connects the operational systems that run our world.” Recorded in the RevenueBase company graph · Sep 29, 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 “ot network 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 293 ot network security companies based in the United States
See the full list, filter by size, metro and specialty, and access 5,011 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Ot network security companies based in the United States at a glance
As of Sep 29, 2026Companies by employee count
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 293 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 “ot network 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. 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 5,011 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 September 29, 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 “ot network security companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many ot network security companies are there based in the United States?
RevenueBase identified 293 company matches for ot network security companies associated with the United States as of September 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?
Infoblox tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most ot network security companies?
Houston leads with 15 company records, followed by New York (12) and Austin (8).
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 5,011 professional contacts with verified work emails tracked across these 293 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 September 29, 2026.
Ready to reach these companies? Verified emails and direct dials for all 293 ot network security companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Ot network security companies by geography
- Ot network security companies based in London, United Kingdom
- Ot network security companies based in Australia
- Ot network security companies based in Belgium
- Ot network security companies based in Brazil
- Ot network security companies based in Canada
- Ot network security companies based in France
- Ot network security companies based in Germany
- Ot network security companies based in India
- Ot network security companies based in Israel
- Ot network security companies based in Italy
- Ot network security companies based in the Netherlands
- Ot network security companies based in Spain
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Ot network security companies based in London, United Kingdom
- Ot network security companies based in Australia
- Ot network security companies based in Belgium
- Ot network security companies based in Brazil
- Ot network security companies based in Canada
- Ot network security companies based in France
Company intelligence · public preview
Top 25 ot network security companies based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 293 matching company records for ot network security companies based in the United States, with 11,044 tracked contacts and 5,011 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 29, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 ot network security companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Infobloxinfoblox.comHQ: Santa Clara, CA, United StatesReported employees: 1,001-5,000 | Santa Clara, CA, United States | 1,001-5,000 | Exact match | 2,813 contacts → |
“Infoblox unites networking and security to deliver unmatched performance and protection.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  PASpas.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 1,231 contacts → |
“PAS, part of Hexagon's Asset Lifecycle Intelligence division, delivers software solutions that prevent, detect, & remediate cyber threats, reduce process safety risks, and…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Forescout Technologies INCforescout.comHQ: San Jose, CA, United StatesReported employees: 1,001-5,000 | San Jose, CA, United States | 1,001-5,000 | Exact match | 1,181 contacts → |
“As AI-driven vulnerability and exploitation accelerate attack velocity to machine speed, Forescout is a foundational cyber defense layer that allows organizations to segment and…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Clarotyclaroty.comHQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 725 contacts → |
“Claroty has redefined cyber-physical systems (CPS) protection with an unrivaled industry-centric platform built to secure mission-critical infrastructure.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Dragos, INCdragos.comHQ: Hanover, MD, United StatesReported employees: 501-1,000 | Hanover, MD, United States | 501-1,000 | Exact match | 551 contacts → |
“Dragos provides the most effective OT cybersecurity technology for industrial and critical infrastructure to deliver on our global mission: to safeguard civilization.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Nozomi Networksnozominetworks.comHQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 375 contacts → |
“We protect the world’s critical infrastructure from cyber threats.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Niksunniksun.comHQ: Princeton, NJ, United StatesReported employees: 201-500 | Princeton, NJ, United States | 201-500 | Exact match | 276 contacts → |
“In the ever-growing world of Cloud Computing, Big Data and the Internet of Things, NIKSUN® is the industry leader in making the unknown known.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Cujo AIcujo.comHQ: Covina, CA, United StatesReported employees: 201-500 | Covina, CA, United States | 201-500 | Exact match | 239 contacts → |
“CUJO AI® is the global leader of cutting-edge cybersecurity and network intelligence solutions that enable network operators globally to improve the digital life protection of…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Hillstone Networkshillstonenet.comHQ: Santa Clara, CA, United StatesReported employees: 1,001-5,000 | Santa Clara, CA, United States | 1,001-5,000 | Exact match | 230 contacts → |
“Hillstone Networks’ Integrative Cyber Security approach delivers coverage, control, and consolidation to secure digital transformation for more than enterprises worldwide.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Stone Security, A Bearcom Companystonesecurity.netHQ: Salt Lake City, UT, United StatesReported employees: 201-500 | Salt Lake City, UT, United States | 201-500 | Exact match | 202 contacts → |
“Stone Security has been driving the implementation of network-based surveillance, access control and intrusion systems for over 15 years.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Nextgen Securitynextgensecured.comHQ: Exton, PA, United StatesReported employees: 201-500 | Exton, PA, United States | 201-500 | Exact match | 188 contacts → |
“NextGen Security is a security systems integrator that offers industrial companies best in class industry knowledge, engineering design, implementation, management and on-going…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  RMC Globalrmcglobal.comHQ: Arlington, VA, United StatesReported employees: 51-200 | Arlington, VA, United States | 51-200 | Exact match | 167 contacts → |
“We believe resilience depends on minimizing and managing the increasing risks facing the critical infrastructure and industrial systems that support our country, companies, and…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Cadre Information Securitycadre.netHQ: Cincinnati, OH, United StatesReported employees: 51-200 | Cincinnati, OH, United States | 51-200 | Exact match | 138 contacts → |
“Cadre is a network and information security solutions provider that serves large and medium-sized firms.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Shift5shift5.ioHQ: Arlington, VA, United StatesReported employees: 51-200 | Arlington, VA, United States | 51-200 | Exact match | 129 contacts → |
“Former military officers who stood up U.S.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Foxguardfoxguardsolutions.comHQ: Christiansburg, VA, United StatesReported employees: 51-200 | Christiansburg, VA, United States | 51-200 | Exact match | 116 contacts → |
“Foxguard delivers comprehensive OT Cyber Security and Compute Solutions tailored to meet the unique needs of critical infrastructures.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Acet Solutionsacetsolutions.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 106 contacts → |
“ACET SOLUTIONS is a global OT Cybersecurity and Digital Transformation company serving the critical infrastructure industries.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Dispeldispel.comHQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 86 contacts → |
“Dispel delivers security that makes industrial operations run faster.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Verve By Rockwell Automationverveindustrial.comHQ: Chicago, MO, United StatesReported employees: 51-200 | Chicago, MO, United States | 51-200 | Exact match | 69 contacts → |
“Verve Industrial Protection has ensured reliable and secure industrial control systems for 30 years.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Revelsirevelsi.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 65 contacts → |
“RevelSI is a global cybersecurity, AI, software, and infrastructure services organization.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Applied Network Solutions, INCgo-ans.comHQ: Columbia, MD, United StatesReported employees: 51-200 | Columbia, MD, United States | 51-200 | Exact match | 57 contacts → |
“We operate at the intersection of network engineering and cybersecurity, providing secure, scalable, and high-performing architectures for our customers.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Phosphorus Cybersecurity INCphosphorus.ioHQ: Nashville, TN, United StatesReported employees: 51-200 | Nashville, TN, United States | 51-200 | Exact match | 53 contacts → |
“Phosphorus, a Dragos company, is the leading xIoT security and management platform that proactively manages the expanding IoT, OT, and IoMT attack surface.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  RED Groupred.groupHQ: Metairie, LA, United StatesReported employees: 51-200 | Metairie, LA, United States | 51-200 | Exact match | 52 contacts → |
“RED Group provides end-to-end Operational Technology & Industrial Control Systems (OT/ICS) solutioning and delivery expertise, from conceptual consulting, through detailed…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Industrial Defenderindustrialdefender.comHQ: Foxborough, MA, United StatesReported employees: 51-200 | Foxborough, MA, United States | 51-200 | Exact match | 51 contacts → |
“Industrial Defender protects the world’s critical infrastructure from cyberattacks.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Aspire Tech Services And Solutions Corpaspiretss.comHQ: NY, United StatesReported employees: 51-200 | NY, United States | 51-200 | Exact match | 38 contacts → |
“Are You Ready to Protect Your Business with the Best Cybersecurity Solutions?” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Corshacorsha.comHQ: Vienna, VA, United StatesReported employees: 11-50 | Vienna, VA, United States | 11-50 | Exact match | 37 contacts → |
“Corsha securely connects the operational systems that run our world.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 293 company matches
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Ot network security companies: dataset insights
September 29, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
293 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 293 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 29, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for ot network security companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many ot network security companies did RevenueBase find based in the United States?
The saved snapshot records 293 matching company records, 11,044 tracked contacts and 5,011 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 29, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Ot network security companies by geography
- Ot network security companies based in London, United Kingdom
- Ot network security companies based in Australia
- Ot network security companies based in Belgium
- Ot network security companies based in Brazil
- Ot network security companies based in Canada
- Ot network security companies based in France
- Ot network security companies based in Germany
- Ot network security companies based in India
- Ot network security companies based in Israel
- Ot network security companies based in Italy
- Ot network security companies based in the Netherlands
- Ot network security companies based in Spain
Cite this list
RevenueBase Data Team. Top 25 ot network security companies based in the United States. Snapshot: September 29, 2026. https://revenuebase.ai/companies/ot-network-security-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Ot network security companies based in London, United Kingdom
- Ot network security companies based in Australia
- Ot network security companies based in Belgium
- Ot network security companies based in Brazil
- Ot network security companies based in Canada
- Ot network security companies based in France
Company intelligence · public preview
Top 25 ot network security companies based in the United States
RevenueBase records 293 matching company records for ot network security companies based in the United States, with 11,044 tracked contacts and 5,011 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 29, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 ot network security companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Infobloxinfoblox.com HQ: Santa Clara, CA, United StatesReported employees: 1,001-5,000 | Santa Clara, CA, United States | 1,001-5,000 | Exact match | 2,813 contacts → |
“Infoblox unites networking and security to deliver unmatched performance and protection.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | PASpas.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 1,231 contacts → |
“PAS, part of Hexagon's Asset Lifecycle Intelligence division, delivers software solutions that prevent, detect, & remediate cyber threats, reduce process safety risks, and…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Forescout Technologies INCforescout.com HQ: San Jose, CA, United StatesReported employees: 1,001-5,000 | San Jose, CA, United States | 1,001-5,000 | Exact match | 1,181 contacts → |
“As AI-driven vulnerability and exploitation accelerate attack velocity to machine speed, Forescout is a foundational cyber defense layer that allows organizations to segment and…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Clarotyclaroty.com HQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 725 contacts → |
“Claroty has redefined cyber-physical systems (CPS) protection with an unrivaled industry-centric platform built to secure mission-critical infrastructure.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Dragos, INCdragos.com HQ: Hanover, MD, United StatesReported employees: 501-1,000 | Hanover, MD, United States | 501-1,000 | Exact match | 551 contacts → |
“Dragos provides the most effective OT cybersecurity technology for industrial and critical infrastructure to deliver on our global mission: to safeguard civilization.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Nozomi Networksnozominetworks.com HQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 375 contacts → |
“We protect the world’s critical infrastructure from cyber threats.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Niksunniksun.com HQ: Princeton, NJ, United StatesReported employees: 201-500 | Princeton, NJ, United States | 201-500 | Exact match | 276 contacts → |
“In the ever-growing world of Cloud Computing, Big Data and the Internet of Things, NIKSUN® is the industry leader in making the unknown known.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Cujo AIcujo.com HQ: Covina, CA, United StatesReported employees: 201-500 | Covina, CA, United States | 201-500 | Exact match | 239 contacts → |
“CUJO AI® is the global leader of cutting-edge cybersecurity and network intelligence solutions that enable network operators globally to improve the digital life protection of…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Hillstone Networkshillstonenet.com HQ: Santa Clara, CA, United StatesReported employees: 1,001-5,000 | Santa Clara, CA, United States | 1,001-5,000 | Exact match | 230 contacts → |
“Hillstone Networks’ Integrative Cyber Security approach delivers coverage, control, and consolidation to secure digital transformation for more than enterprises worldwide.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Stone Security, A Bearcom Companystonesecurity.net HQ: Salt Lake City, UT, United StatesReported employees: 201-500 | Salt Lake City, UT, United States | 201-500 | Exact match | 202 contacts → |
“Stone Security has been driving the implementation of network-based surveillance, access control and intrusion systems for over 15 years.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Nextgen Securitynextgensecured.com HQ: Exton, PA, United StatesReported employees: 201-500 | Exton, PA, United States | 201-500 | Exact match | 188 contacts → |
“NextGen Security is a security systems integrator that offers industrial companies best in class industry knowledge, engineering design, implementation, management and on-going…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | RMC Globalrmcglobal.com HQ: Arlington, VA, United StatesReported employees: 51-200 | Arlington, VA, United States | 51-200 | Exact match | 167 contacts → |
“We believe resilience depends on minimizing and managing the increasing risks facing the critical infrastructure and industrial systems that support our country, companies, and…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Cadre Information Securitycadre.net HQ: Cincinnati, OH, United StatesReported employees: 51-200 | Cincinnati, OH, United States | 51-200 | Exact match | 138 contacts → |
“Cadre is a network and information security solutions provider that serves large and medium-sized firms.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Shift5shift5.io HQ: Arlington, VA, United StatesReported employees: 51-200 | Arlington, VA, United States | 51-200 | Exact match | 129 contacts → |
“Former military officers who stood up U.S.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Foxguardfoxguardsolutions.com HQ: Christiansburg, VA, United StatesReported employees: 51-200 | Christiansburg, VA, United States | 51-200 | Exact match | 116 contacts → |
“Foxguard delivers comprehensive OT Cyber Security and Compute Solutions tailored to meet the unique needs of critical infrastructures.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Acet Solutionsacetsolutions.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 106 contacts → |
“ACET SOLUTIONS is a global OT Cybersecurity and Digital Transformation company serving the critical infrastructure industries.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Dispeldispel.com HQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 86 contacts → |
“Dispel delivers security that makes industrial operations run faster.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Verve By Rockwell Automationverveindustrial.com HQ: Chicago, MO, United StatesReported employees: 51-200 | Chicago, MO, United States | 51-200 | Exact match | 69 contacts → |
“Verve Industrial Protection has ensured reliable and secure industrial control systems for 30 years.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Revelsirevelsi.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 65 contacts → |
“RevelSI is a global cybersecurity, AI, software, and infrastructure services organization.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Applied Network Solutions, INCgo-ans.com HQ: Columbia, MD, United StatesReported employees: 51-200 | Columbia, MD, United States | 51-200 | Exact match | 57 contacts → |
“We operate at the intersection of network engineering and cybersecurity, providing secure, scalable, and high-performing architectures for our customers.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Phosphorus Cybersecurity INCphosphorus.io HQ: Nashville, TN, United StatesReported employees: 51-200 | Nashville, TN, United States | 51-200 | Exact match | 53 contacts → |
“Phosphorus, a Dragos company, is the leading xIoT security and management platform that proactively manages the expanding IoT, OT, and IoMT attack surface.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | RED Groupred.group HQ: Metairie, LA, United StatesReported employees: 51-200 | Metairie, LA, United States | 51-200 | Exact match | 52 contacts → |
“RED Group provides end-to-end Operational Technology & Industrial Control Systems (OT/ICS) solutioning and delivery expertise, from conceptual consulting, through detailed…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Industrial Defenderindustrialdefender.com HQ: Foxborough, MA, United StatesReported employees: 51-200 | Foxborough, MA, United States | 51-200 | Exact match | 51 contacts → |
“Industrial Defender protects the world’s critical infrastructure from cyberattacks.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Aspire Tech Services And Solutions Corpaspiretss.com HQ: NY, United StatesReported employees: 51-200 | NY, United States | 51-200 | Exact match | 38 contacts → |
“Are You Ready to Protect Your Business with the Best Cybersecurity Solutions?” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Corshacorsha.com HQ: Vienna, VA, United StatesReported employees: 11-50 | Vienna, VA, United States | 11-50 | Exact match | 37 contacts → |
“Corsha securely connects the operational systems that run our world.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 293 company matches
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Ot network security companies: dataset insights
September 29, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
293 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 293 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 29, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for ot network security companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many ot network security companies did RevenueBase find based in the United States?
The saved snapshot records 293 matching company records, 11,044 tracked contacts and 5,011 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 29, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Ot network security companies by geography
- Ot network security companies based in London, United Kingdom
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- Ot network security companies based in France
- Ot network security companies based in Germany
- Ot network security companies based in India
- Ot network security companies based in Israel
- Ot network security companies based in Italy
- Ot network security companies based in the Netherlands
- Ot network security companies based in Spain
Cite this list
RevenueBase Data Team. Top 25 ot network security companies based in the United States. Snapshot: September 29, 2026. https://revenuebase.ai/companies/ot-network-security-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Ot network security companies based in France