Company lists · Data refreshed November 2026

Top 25 Telecom encryption software companies based in the United States

RevenueBase identified 104 company matches for telecom encryption software companies associated with the United States as of November 2026 and tracks 2,323 professional contacts across them, including 348 with verified work emails. Austin is the largest hub.

This list covers company matches for telecom encryption 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
104Companies
2,323Contacts tracked
348Verified emails
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The 25 largest telecom encryption software companies based in the United States

Ranked by team size
Top 25 of 104 company matches for telecom encryption 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 matchIrving, TX, United StatesHQ recorded Nov 5, 2026201-500445 contacts →

Exact match

“Headquartered in Irving, Texas, EF Johnson Technologies, Inc.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact 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
3Exact matchBothell, WA, United StatesHQ recorded Nov 5, 202651-20070 contacts →

Exact match

“XMedius is a global leader in the field of enterprise communications solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchVienna, VA, United StatesHQ recorded Nov 5, 2026n/a66 contacts →

Exact match

“SDF is a recognized leader in the dynamic world of tactical and strategic cellular security systems solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchMount Laurel, NJ, United StatesHQ recorded Nov 5, 202611-5031 contacts →

Exact match

“NetQuest Corporation develops cyber intelligence solutions for telco security and government defense applications in advanced communication networks.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchCenterville, UT, United StatesHQ recorded Nov 5, 202611-5027 contacts →

Exact match

“Secturion Systems is a technology company specializing in high-speed network encryption.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchRoswell, GA, United StatesHQ recorded Nov 5, 202611-5023 contacts →

Exact match

“Dispersive Stealth Networking delivers military-grade secure communications through a patented multipath approach that splits, encrypts, and disperses traffic across randomized…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchZephyr Cove, NV, United StatesHQ recorded Nov 5, 202611-5022 contacts →

Exact match

“VirnetX is a global leader in communication security.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchAptos, CA, United StatesHQ recorded Nov 5, 202611-5021 contacts →

Exact match

“Engage is a leading provider of innovative communications solutions that connect, protect and secure communication networks.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchKirkland, WA, United StatesHQ recorded Nov 5, 202611-5021 contacts →

Exact match

“The only provably quantum-safe security for enterprise data in transit.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchGermantown, MD, United StatesHQ recorded Nov 5, 202611-5019 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchFramingham, LA, United StatesHQ recorded Nov 5, 202651-20019 contacts →

Exact match

“Process Software is a premier supplier of communications software solutions to mission critical environments in business since 1984.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchSunrise, FL, United StatesHQ recorded Nov 5, 202611-5014 contacts →

Exact match

“At Sotera, we offer unparalleled end-to-end protection for your critical information.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchUniondale, NY, United StatesHQ recorded Nov 5, 202651-20011 contacts →

Exact match

“Bianor Services is a leading software development company specializing in video and image processing, video and data streaming, live broadcasting, encryption, analyses, and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchColumbia, MD, United StatesHQ recorded Nov 5, 202651-20010 contacts →

Exact match

“Silent Circle is a recognized innovator in enterprise privacy delivered through a revolutionary platform of devices, software and services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchLakeland, FL, United StatesHQ recorded Nov 5, 202651-2009 contacts →

Exact match

“To secure our most vulnerable critical infrastructures, we at Kloch provide innovative encryption solutions to safeguard operational technology (OT) systems with unmatched…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchMclean, VA, United StatesHQ recorded Nov 5, 20261-107 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchVista, CA, United StatesHQ recorded Nov 5, 20261-106 contacts →

Exact match

“Cyber Sphere Data is a cyber security company based in San Diego, CA.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchJackson, MI, United StatesHQ recorded Nov 5, 20261-105 contacts →

Exact match

“securencrypt is a data security company focused on protecting data.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchSan Francisco, TX, United StatesHQ recorded Nov 5, 202611-504 contacts →

Exact match

“CyberProtonics, the global leader in breach immunity, provides next-generation, post-quantum-grade data protection for SMBs and Fortune 500 companies alike.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchStamford, CT, United StatesHQ recorded Nov 5, 202611-503 contacts →

Exact match

“NetLib Security is a pioneer.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchSunrise, FL, United StatesHQ recorded Nov 5, 202611-503 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchOrlando, FL, United StatesHQ recorded Nov 5, 202611-503 contacts →

Exact match

“We Make Technology Accessible.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchAventura, FL, United StatesHQ recorded Nov 5, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchAustin, TX, United StatesHQ recorded Nov 5, 20261-102 contacts →

Exact match

“The Whisper Company develops products and services in Cybersecurity for privacy and secure communication between electronic devices using patented state-of-the-art information…”

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

Showing 25 of 104 telecom encryption software companies based in the United States

See the full list, filter by size, metro and specialty, and access 348 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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

As of Nov 5, 2026
15.0%Verified-email coverage
22.3Average contacts per company
11-50Median size (employees)
3.8%Largest-city concentration · Austin
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
40
11-50
45
51-200
9
201-500
6
501-1,000
1
1,001-5,000
2
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 104 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 encryption 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 348 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 encryption software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 104 company matches for telecom encryption 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?

EF Johnson Technologies, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most telecom encryption software companies?

Austin leads with 4 company records, followed by San Francisco (4) and Columbia (3).

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 348 professional contacts with verified work emails tracked across these 104 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.