Company lists · Data refreshed November 2026

Top 25 Secure communications software companies worldwide

RevenueBase identified 537 company matches for secure communications software companies worldwide as of November 2026 and tracks 11,889 professional contacts across them, including 2,379 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for secure communications software companies worldwide, 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. Country and city lists for secure communications software companies follow the table.

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
537Companies
11,889Contacts tracked
2,379Verified emails
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The 25 largest secure communications software companies worldwide

Ranked by team size
Top 25 of 537 company matches for secure communications software companies worldwide, 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 matchWaterloo, ON, CanadaHQ recorded Nov 5, 20261,001-5,0006,693 contacts →

Exact match

“Safe.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchParis, FranceHQ recorded Nov 5, 2026201-500373 contacts →

Exact match

“Oodrive is Europe's first trusted collaborative suite.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchUnited StatesHQ recorded Nov 5, 2026501-1,000265 contacts →

Exact match

“KATIM is a leader in the development of innovative secure communication products and solutions for governments and businesses.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchWilmington, DE, United StatesHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
5Exact matchBerlin, GermanyHQ recorded Nov 5, 202651-200180 contacts →

Exact match

“Wire is a secure messenger and collaboration platform built for organizations that cannot afford leaks, exposure, or loss of control.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Nov 5, 2026501-1,000112 contacts →

Exact match

“DIGITAL14 is a leader in the development of innovative secure communication products and solutions for governments and businesses.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchChiswick, United KingdomHQ recorded Nov 5, 202651-20093 contacts →

Exact match

“Element is a new type of communications platform.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 202611-5093 contacts →

Exact match

“Signal is a nonprofit end-to-end encrypted communications app, driven by the mission to protect free expression and enable secure global communication through open source privacy…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchPlano, TX, United StatesHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
10Exact 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
11Exact matchLittleton, CO, United StatesHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
12Exact matchIlkley, United KingdomHQ recorded Nov 5, 202611-5059 contacts →

Exact match

“Talk Straight has been looking after the communications and network security for thousands of public and private sector organisations since 2007.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchNuremberg, GermanyHQ recorded Nov 5, 202651-20044 contacts →

Exact match

“NCP mit Hauptsitz in Nürnberg ist ein weltweit führender Softwarehersteller für hochsichere Lösungen in den Bereichen Remote Access, Endpoint Security sowie Cloud & VPN.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchHampton, United KingdomHQ recorded Nov 5, 202611-5041 contacts →

Exact match

“Since 2002 Isode has been developing and supporting Commercial off the shelf (COTS) client & server software for secure messaging and directory systems.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchRomsey, United KingdomHQ recorded Nov 5, 202611-5040 contacts →

Exact match

“At Airsys, we are a leading distributor in secure instant communications.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchSwitzerlandHQ recorded Nov 5, 202651-20039 contacts →

Exact match

“UNEY is dedicated in advancing secure communications, committed to building platforms that are user-friendly and privacy-first.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchOppenheim, GermanyHQ recorded Nov 5, 202651-20036 contacts →

Exact match

“ECOS is an owner-managed business and specialized in the software development of IT security solutions.we connect IT stands for solutions providing employees of public…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchStockholm, SwedenHQ recorded Nov 5, 202611-5034 contacts →

Exact match

“AxCrypt is an award-wining startup company providing strong and simple encryption software.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchHanover, GermanyHQ recorded Nov 5, 202651-20033 contacts →

Exact match

“stashcat® is the market leader for highsecure messaging.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchToronto, ON, CanadaHQ recorded Nov 5, 202611-5030 contacts →

Exact match

“TitanFile is an award-winning, easy and secure way for professionals to communicate without having to worry about security and privacy.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchMunich, GermanyHQ recorded Nov 5, 202611-5029 contacts →

Exact match

“Communication must not be a weak point.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchLabège, FranceHQ recorded Nov 5, 202611-5027 contacts →

Exact match

“Stay connected in Silence.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchWilmington, United StatesHQ recorded Nov 5, 202651-20027 contacts →

Exact match

“Meet Less.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchSunshine Coast, AustraliaHQ recorded Nov 5, 202611-5026 contacts →

Exact match

“For over two decades, GoLogic Group has helped businesses send sensitive information safely, with the peace of mind that it arrives secure and intact.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchHvidovre, DenmarkHQ recorded Nov 5, 202611-5026 contacts →

Exact match

“Dencrypt’s solutions effectively protect against industrial espionage and eavesdropping.”

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

Showing 25 of 537 secure communications software companies worldwide

See the full list, filter by size, metro and specialty, and access 2,379 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Secure communications software companies worldwide at a glance

As of Nov 5, 2026
20.0%Verified-email coverage
22.1Average contacts per company
11-50Median size (employees)
4.1%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
253
11-50
205
51-200
54
201-500
9
501-1,000
4
1,001-5,000
7
10001+
1

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for secure communications software companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “secure communications 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. 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 2,379 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.

Secure communications software companies by location

3 lists · largest first

Every Secure communications software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many secure communications software companies are there worldwide?

RevenueBase identified 537 company matches for secure communications software companies worldwide 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?

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

Which country has the most secure communications software companies?

The United States leads with 125 companies, followed by the United Kingdom (35) and Germany (28). Every secure communications software companies list by country and city is linked on this page.

Which city has the most secure communications software companies?

London leads with 22 company records, followed by San Francisco (10) and Zug (7).

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 2,379 professional contacts with verified work emails tracked across these 537 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.