Company lists · Data refreshed November 2026

Top 25 Telecom cybersecurity software companies based in the United States

RevenueBase identified 625 company matches for telecom cybersecurity software companies associated with the United States as of November 2026 and tracks 41,320 professional contacts across them, including 20,449 with verified work emails. New York is the largest hub.

This list covers company matches for telecom cybersecurity software 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 November 5, 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 Nov 5, 2026 How this list was built
625Companies
41,320Contacts tracked
20,449Verified emails
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The 25 largest telecom cybersecurity software companies based in the United States

Ranked by team size
Top 25 of 625 company matches for telecom cybersecurity software companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchSunnyvale, CA, United StatesHQ recorded Nov 5, 202610001+15,414 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchPlano, TX, United StatesHQ recorded Nov 5, 20261,001-5,0003,510 contacts →

Exact match

“Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchSanta Clara, CA, United StatesHQ recorded Nov 5, 20261,001-5,0003,307 contacts →

Exact match

“Infoblox unites networking and security to deliver unmatched performance and protection.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchCampbell, CA, United StatesHQ recorded Nov 5, 20261,001-5,0002,408 contacts →

Exact match

“Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchAustin, TX, United StatesHQ recorded Nov 5, 202610001+1,192 contacts →

Exact match

“On Dec.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchAshburn, VA, United StatesHQ recorded Nov 5, 2026501-1,000676 contacts →

Exact match

“Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchHanover, MD, United StatesHQ recorded Nov 5, 2026501-1,000670 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 · Nov 5, 2026 · View company records in RevenueBase
8Exact matchWichita, AZ, United StatesHQ recorded Nov 5, 2026201-500384 contacts →

Exact match

“Novacoast is an international cybersecurity company specializing in IT services and software development.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchMiramar, FL, United StatesHQ recorded Nov 5, 2026201-500356 contacts →

Exact match

“Claro, a subsidiary of América Móvil, is a global integrator with over 20 years of experience and your partner for managing secure-by-design cybersecurity and information…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchJohns Creek, GA, United StatesHQ recorded Nov 5, 202651-200352 contacts →

Exact match

“ThreatAdvice is a leading provider of Cybersecurity solutions and Fraud Detection.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchPrinceton, NJ, United StatesHQ recorded Nov 5, 2026201-500327 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 · Nov 5, 2026 · View company records in RevenueBase
12Exact matchCovina, CA, United StatesHQ recorded Nov 5, 2026201-500257 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 · Nov 5, 2026 · View company records in RevenueBase
13Exact matchSanta Clara, CA, United StatesHQ recorded Nov 5, 20261,001-5,000243 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 · Nov 5, 2026 · View company records in RevenueBase
14Exact matchRedwood City, United StatesHQ recorded Nov 5, 2026501-1,000235 contacts →

Exact match

“Openwave Systems Inc.(Nasdaq: OPWV) was a global software innovator delivering context-aware mediation and messaging solutions that enable communication service providers and the…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchSan Mateo, CA, United StatesHQ recorded Nov 5, 2026201-500229 contacts →

Exact match

“Arkose Labs helps the biggest enterprises in the world-including top banks, tech giants, social media platforms, airlines, etc-protect their users, revenue and reputation from…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchBroomfield, CO, United StatesHQ recorded Nov 5, 2026501-1,000205 contacts →

Exact match

“Webroot, an OpenText company, was the first to harness the cloud and artificial intelligence to stop zero-day threats in real time.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchDallas, TX, United StatesHQ recorded Nov 5, 20261,001-5,000193 contacts →

Exact match

“AT & T Cybersecurity’s Edge-to-Edge technologies provide phenomenal threat intelligence, collaborative defense, security without the seams, and solutions that fit your business.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchGlobally Distributed, United StatesHQ recorded Nov 5, 2026201-500190 contacts →

Exact match

“With 30 years of experience in cyber defense, DeepSeas is trusted by nearly clients around the world, including Fortune 100 enterprises and mid-market organizations, municipality…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 2026201-500173 contacts →

Exact match

“Vehere is an AI cyber defense company operating at the intersection of national security and enterprise security.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchSanta Clara, CA, United StatesHQ recorded Nov 5, 2026501-1,000159 contacts →

Exact match

“ThreatDown is a standalone leader in elite Managed Detection and Response (MDR), purpose-built to empower resource-constrained security teams with high-efficacy protection…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchCincinnati, OH, United StatesHQ recorded Nov 5, 202651-200150 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 · Nov 5, 2026 · View company records in RevenueBase
22Exact matchColumbia, MD, United StatesHQ recorded Nov 5, 202651-200131 contacts →

Exact match

“SealingTech, a Parsons Company, rapidly delivers innovative, agile cybersecurity solutions that modernize, protect, and defend the networks and systems of the federal government…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchWashington, DC, United StatesHQ recorded Nov 5, 202611-50122 contacts →

Exact match

“Illuminate provides government agencies, commercial enterprises, and network operators with the data, services, and technology that helps them protect the information that…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchSan Antonio, TX, United StatesHQ recorded Nov 5, 202651-200122 contacts →

Exact match

“CNF is a top cybersecurity provider in San Antonio Texas.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchOverland Park, KS, United StatesHQ recorded Nov 5, 202651-200115 contacts →

Exact match

“As the world becomes more connected, our lives and businesses are more vulnerable.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 625 telecom cybersecurity software companies based in the United States

See the full list, filter by size, metro and specialty, and access 20,449 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Telecom cybersecurity software companies based in the United States at a glance

As of Nov 5, 2026
49.5%Verified-email coverage
66.1Average contacts per company
11-50Median size (employees)
3.7%Largest-city concentration · New York
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
251
11-50
242
51-200
87
201-500
15
501-1,000
11
1,001-5,000
13
5,001-10,000
2
10001+
3

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 625 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 “telecom cybersecurity software 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 20,449 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 November 5, 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 “telecom cybersecurity software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecom cybersecurity software companies are there based in the United States?

RevenueBase identified 625 company matches for telecom cybersecurity software companies associated with the United States as of November 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?

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

Which city has the most telecom cybersecurity software companies?

New York leads with 23 company records, followed by Miami (15) and Austin (14).

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 20,449 professional contacts with verified work emails tracked across these 625 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 November 5, 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.