Company lists · Data refreshed September 2026
Top 25 Secure communications software companies based in the United States
RevenueBase identified 111 secure communications software companies headquartered in the United States as of September 2026 and tracks 1,683 professional contacts across them, including 567 with verified work emails and 518 with mobile numbers. New York is the largest hub.
This list covers secure communications software companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 6, 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 secure communications software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 421 | ||||
“Headquartered in Irving, Texas, EF Johnson Technologies, Inc.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 206 | ||||
“At Hiya, we are revolutionizing the voice communication experience, making it more productive and secure.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | rocket.chatStrong evidence | 188 | |||
“Rocket.Chat Secure CommsOS® is a communication platform that unifies messaging, voice, video, AI, and mission-critical applications-ensuring uncompromising security, compliance…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 75 | ||||
“Established more than 20 years ago, NetFortris has grown to become the leading provider of secure cloud communication solutions to forward-thinking, mid-sized and enterprise…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | AVSTPartial evidence | 62 | |||
“XMedius is a global leader in the field of enterprise communications solutions.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 56 | ||||
“Our Mission: With a strong commitment to security and customer service, our innovative engagement solutions ensure that our customers can communicate with confidence.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 28 | ||||
“Meet Less.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 24 | ||||
“Fognigma's patented software enables organizations to operate online without exposing their people, infrastructure, or mission.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 21 | ||||
“CellTrust Corporation, founded in 2006 and headquartered in Scottsdale, Arizona, USA, is a global leader in secure, compliant unified mobile communications (UMC), providing…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | VirnetxStrong evidence | 21 | |||
“VirnetX is a global leader in communication security.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 21 | ||||
“Dispersive Stealth Networking delivers military-grade secure communications through a patented multipath approach that splits, encrypts, and disperses traffic across randomized…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | Koolspan, INCIndirect evidence | 21 | |||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | SnippetsentryStrong evidence | 20 | |||
“SnippetSentry™ is dedicated to delivering comprehensive, secure mobile messaging app communications solutions that are regulatory compliant.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | NetsfereStrong evidence | 19 | |||
“NetSfere is a next-generation secure enterprise communication platform, delivering AI-powered, quantum-resilient messaging to safeguard mission-critical communications in an era…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | Process SoftwareStrong evidence | 18 | |||
“Process Software is a premier supplier of communications software solutions to mission critical environments in business since 1984.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | Sotera Digital SecurityIndirect evidence | 14 | |||
“At Sotera, we offer unparalleled end-to-end protection for your critical information.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | Trusted SolutionsPartial evidence | 11 | |||
“Trusted Solutions, LLC Trusted Solutions specializes in enterprise-level secure chat technology designed to meet the demands of mission-critical operations.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 10 | ||||
“Black Saber Group is guided by a drive to provide resilient PNT (Position, Navigation, Timing), indication for spoofing and jamming, and secure communications through the Iridium®…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | HilgraeveStrong evidence | 7 | |||
“Hilgraeve Inc, a privately held software company based just south of Detroit in Monroe, Michigan, is a long-time leader in meeting the mission-critical communication needs of…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 | ||||
“Didgebridge is a company founded by senior marketing executives and award-winning technologists to create ultra private rich-content secure mobile communication.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | GlobekeeperStrong evidence | 7 | |||
“GlobeKeeper is the world’s premier provider of secure communications and tracking solutions for private and government security organizations.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 | ||||
“Connecting Our Troops” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 | ||||
“Criptext provides secure email and messaging for governments and large enterprises.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | VerifylePartial evidence | 5 | |||
“Verifyle is ultra-secure messaging and documents sharing, all from a single screen.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 | ||||
“B1 is the secure, sovereign communications platform built for governments and public-sector institutions.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 111 secure communications software companies based in the United States
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Secure communications software companies based in the United States at a glance
As of Sep 6, 2026Companies by employee count
Verified emails by last verification
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among secure communications software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “secure communications software companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among secure communications software companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 567 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 6, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
How many secure communications software companies are there based in the United States?
RevenueBase identified 111 secure communications software companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
EF Johnson Technologies, INC, headquartered in Irving, tops this list with the largest team on record.
Which city has the most secure communications software companies?
New York leads with 7 headquartered companies, followed by San Francisco (7) and Austin (4).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 567 verified decision-maker contacts tracked across these 111 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 6, 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.
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