Company lists · Data refreshed November 2026

Top 25 Secure communications providers based in the United States

RevenueBase identified 124 company matches for secure communications providers associated with the United States as of November 2026 and tracks 1,388 professional contacts across them, including 372 with verified work emails. San Francisco is the largest hub.

This list covers company matches for secure communications providers 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 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
124Companies
1,388Contacts tracked
372Verified emails
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The 25 largest secure communications providers based in the United States

Ranked by team size
Top 25 of 124 company matches for secure communications providers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchWilmington, DE, United StatesHQ recorded Nov 6, 202651-200181 contacts →

Exact match

“Rocket.Chat Secure CommsOS® is a communication platform that unifies messaging, voice, video, AI, and mission-critical applications-ensuring uncompromising security, compliance…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchPlano, TX, United StatesHQ recorded Nov 6, 2026201-50082 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBothell, WA, United StatesHQ recorded Nov 6, 202651-20070 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLittleton, CO, United StatesHQ recorded Nov 6, 202651-20061 contacts →

Exact match

“Our Mission: With a strong commitment to security and customer service, our innovative engagement solutions ensure that our customers can communicate with confidence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchArlington, VA, United StatesHQ recorded Nov 6, 202611-5043 contacts →

Exact match

“ACI Solutions is a Secure Cloud and Managed Services Provider with U.S headquarters in Arlington, Virginia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBoston, MA, United StatesHQ recorded Nov 6, 20261,001-5,00035 contacts →

Exact match

“NWN Carousel is an award-winning integrated Cloud Communications Service Provider (CCSP) focused on transforming the hybrid workspace experience.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchRoswell, GA, United StatesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
8Exact matchHerndon, VA, United StatesHQ recorded Nov 6, 202651-20023 contacts →

Exact match

“Fognigma's patented software enables organizations to operate online without exposing their people, infrastructure, or mission.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchZephyr Cove, NV, United StatesHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“VirnetX is a global leader in communication security.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchAptos, CA, United StatesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
11Exact matchSan Ramon, CA, United StatesHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“SnippetSentry™ is dedicated to delivering comprehensive, secure mobile messaging app communications solutions that are regulatory compliant.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchScottsdale, AZ, United StatesHQ recorded Nov 6, 202651-20019 contacts →

Exact match

“CellTrust Corporation, founded in 2006 and headquartered in Scottsdale, Arizona, USA, is a global leader in secure, compliant unified mobile communications (UMC), providing…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchGermantown, MD, United StatesHQ recorded Nov 6, 202611-5019 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchArlington Heights, MD, United StatesHQ recorded Nov 6, 2026201-50018 contacts →

Exact match

“NetSfere is a next-generation secure enterprise communication platform, delivering AI-powered, quantum-resilient messaging to safeguard mission-critical communications in an era…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchFort Lee, NJ, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“At Mobilen Communications Inc, we are dedicated to revolutionizing the way you connect with the world, prioritizing your privacy above all else.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSunrise, FL, United StatesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
17Exact matchNashville, TN, United StatesHQ recorded Nov 6, 20261-1013 contacts →

Exact match

“Trusted Solutions, LLC Trusted Solutions specializes in enterprise-level secure chat technology designed to meet the demands of mission-critical operations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchIrving, TX, United StatesHQ recorded Nov 6, 2026201-50011 contacts →

Exact match

“EFJohnson Technologies focuses on innovating, developing and marketing the highest quality secure communications solutions to organizations whose mission is to protect and save…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchTampa, FL, United StatesHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“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®…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMclean, VA, United StatesHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Secure Out of Band Collaboration Built for the Real-World Risks Enterprises Face.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchColumbia, MD, United StatesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
22Exact matchChicago, IN, United StatesHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Didgebridge is a company founded by senior marketing executives and award-winning technologists to create ultra private rich-content secure mobile communication.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202651-2008 contacts →

Exact match

“StealthMail makes your emails secure and invisible to email relays, hackers, or Public Internet threats - making email relationships with clients a trusted one via StealthMail’s…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchMclean, VA, United StatesHQ recorded Nov 6, 20261-107 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchNew York, NY, United StatesHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Criptext provides secure email and messaging for governments and large enterprises.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 124 secure communications providers based in the United States

See the full list, filter by size, metro and specialty, and access 372 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Secure communications providers based in the United States at a glance

As of Nov 6, 2026
26.8%Verified-email coverage
11.2Average contacts per company
11-50Median size (employees)
7.3%Largest-city concentration · San Francisco
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
47
11-50
52
51-200
15
201-500
5
501-1,000
2
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 124 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 “secure communications providers” 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 372 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 6, 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 “secure communications providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many secure communications providers are there based in the United States?

RevenueBase identified 124 company matches for secure communications providers 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?

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

Which city has the most secure communications providers?

San Francisco leads with 9 company records, followed by New York (6) and Wilmington (4).

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 372 professional contacts with verified work emails tracked across these 124 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 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.