Company lists · Data verified August 2026

Top 8 Encryption software companies based in the United Kingdom

Name: Encryption software companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 29 companies tracked

There are 29 encryption software companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 296 professional contacts across them, including 164 with verified work emails and 25 with mobile numbers. London is the largest hub.

This list covers encryption software companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

29Companies

296Contacts tracked

164Verified emails

25Mobile numbers

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The 8 largest encryption software companies based in the United Kingdom

Ranked by team size

Top 8 of 29 encryption software companies based in the United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Echoworx	London	51-200	79	50
2	Cryptomathic	London	51-200	77	46
3	Galaxkey	St. Albans	51-200	38	29
4	Istorage Limited	Greenford	11-50	31	18
5	Beyond Encryption	Fareham	51-200	15	13
6	Cyber1st	Hq	11-50	12	4
7	Krestfield Limited	London	1-10	4	3
8	Keychest	Cambridge	1-10	1	1

Showing 8 of 29 encryption software companies based in the United Kingdom

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Encryption software companies based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 12 HQs

25Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Encryption software companies by metro

Metro	Companies
Encryption software companies in London	12
Encryption software companies in Glasgow	2
Encryption software companies in Northampton	2
Encryption software companies in Cambridge	1
Encryption software companies in Fareham	1
Encryption software companies in Taunton	1
Encryption software companies in St. Albans	1
Encryption software companies in Borehamwood	1

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “encryption software companies”, with match quality audited by blind human judging, and headquartered in the United Kingdom.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

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

There are 29 encryption software companies headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Echoworx, headquartered in London, tops this list with the largest team on record.

Which city has the most encryption software companies?

London leads with 12 headquartered companies, followed by Glasgow (2) and Northampton (2).

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 164 verified decision-maker contacts tracked across these 29 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.