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, its RevenueBase Smart Search rating, 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 Smart Search, 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 contacts → | ||||
Indirect evidence “Headquartered in Irving, Texas, EF Johnson Technologies, Inc.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 206 contacts → | ||||
Strong evidence “At Hiya, we are revolutionizing the voice communication experience, making it more productive and secure.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 188 contacts → | ||||
Strong evidence “Rocket.Chat Secure CommsOS® is a communication platform that unifies messaging, voice, video, AI, and mission-critical applications-ensuring uncompromising security, compliance…” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 75 contacts → | ||||
Strong evidence “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: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 62 contacts → | ||||
Partial evidence “XMedius is a global leader in the field of enterprise communications solutions.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 56 contacts → | ||||
Partial evidence “Our Mission: With a strong commitment to security and customer service, our innovative engagement solutions ensure that our customers can communicate with confidence.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 28 contacts → | ||||
Indirect evidence “Meet Less.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 24 contacts → | ||||
Partial evidence “Fognigma's patented software enables organizations to operate online without exposing their people, infrastructure, or mission.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 21 contacts → | ||||
Strong evidence “CellTrust Corporation, founded in 2006 and headquartered in Scottsdale, Arizona, USA, is a global leader in secure, compliant unified mobile communications (UMC), providing…” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 21 contacts → | ||||
Strong evidence “VirnetX is a global leader in communication security.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 21 contacts → | ||||
Strong evidence “Dispersive Stealth Networking delivers military-grade secure communications through a patented multipath approach that splits, encrypts, and disperses traffic across randomized…” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 21 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 20 contacts → | ||||
Strong evidence “SnippetSentry™ is dedicated to delivering comprehensive, secure mobile messaging app communications solutions that are regulatory compliant.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 19 contacts → | ||||
Strong evidence “NetSfere is a next-generation secure enterprise communication platform, delivering AI-powered, quantum-resilient messaging to safeguard mission-critical communications in an era…” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 18 contacts → | ||||
Strong evidence “Process Software is a premier supplier of communications software solutions to mission critical environments in business since 1984.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 14 contacts → | ||||
Indirect evidence “At Sotera, we offer unparalleled end-to-end protection for your critical information.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 11 contacts → | ||||
Partial evidence “Trusted Solutions, LLC Trusted Solutions specializes in enterprise-level secure chat technology designed to meet the demands of mission-critical operations.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 10 contacts → | ||||
Strong evidence “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: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 7 contacts → | ||||
Strong evidence “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: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 contacts → | ||||
Strong evidence “Didgebridge is a company founded by senior marketing executives and award-winning technologists to create ultra private rich-content secure mobile communication.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 contacts → | ||||
Strong evidence “GlobeKeeper is the world’s premier provider of secure communications and tracking solutions for private and government security organizations.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 contacts → | ||||
Indirect evidence “Connecting Our Troops” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 contacts → | ||||
Partial evidence “Criptext provides secure email and messaging for governments and large enterprises.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 contacts → | ||||
Partial evidence “Verifyle is ultra-secure messaging and documents sharing, all from a single screen.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 contacts → | ||||
Strong evidence “B1 is the secure, sovereign communications platform built for governments and public-sector institutions.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: secure communications software companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names secure communications software companies.
- Partial evidence
- Its own public description names part of secure communications software companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name secure communications software companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
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
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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 RevenueBase Smart Search 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 Smart Search, 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.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names secure communications software companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- 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 its RevenueBase Smart Search 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
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names secure communications software companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
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 Smart Search, 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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