Company lists · Data verified August 2026

Top 15 Cybersecurity for connected devices based in the United Kingdom

Name: Cybersecurity for connected devices 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 38 companies tracked

There are 38 cybersecurity for connected devices headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 5,337 professional contacts across them, including 2,896 with verified work emails and 889 with mobile numbers. London is the largest hub.

This list covers cybersecurity for connected devices 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.

38Companies

5,337Contacts tracked

2,896Verified emails

889Mobile numbers

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The 15 largest cybersecurity for connected devices based in the United Kingdom

Ranked by team size

Top 15 of 38 cybersecurity for connected devices 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	Sophos	Abingdon	5,001-10,000	4,963	2,711
2	Khipu Networks	Fleet	51-200	129	94
3	Nothreat	London	11-50	36	16
4	Crypto Quantique	London	11-50	34	18
5	Blue Cube Security LTD	East Grinstead	11-50	23	15
6	Angoka	Belfast	11-50	23	13
7	Deltaflare	London	11-50	15	8
8	Icyberdefence	London	11-50	9	7
9	JC Cyber Security Services	Birmingham	1-10	8	1
10	Threat Protect	London	1-10	7	2
11	Copper Horse LTD	Bournemouth	1-10	6	4
12	Certified Nerds Cyber Security Company	London	11-50	6	2
13	Cybvantic Limited	Manchester	11-50	2	2
14	Plan G Technology LTD	Oxford	1-10	2	2
15	Alion4	London	1-10	1	1

Showing 15 of 38 cybersecurity for connected devices based in the United Kingdom

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Cybersecurity for connected devices based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 14 HQs

889Contacts with mobile numbers

6Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

5,001-10,000

Cybersecurity for connected devices by metro

Metro	Companies
Cybersecurity for connected devices in London	14
Cybersecurity for connected devices in Manchester	3
Cybersecurity for connected devices in Oxford	2
Cybersecurity for connected devices in Bournemouth	1
Cybersecurity for connected devices in Royal Leamington Spa	1
Cybersecurity for connected devices in Evesham	1
Cybersecurity for connected devices in Abingdon	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 “cybersecurity for connected devices”, 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; 6 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 cybersecurity for connected devices are there based in the United Kingdom?

There are 38 cybersecurity for connected devices headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Sophos, headquartered in Abingdon, tops this list with the largest team on record.

Which city has the most cybersecurity for connected devices?

London leads with 14 headquartered companies, followed by Manchester (3) and Oxford (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 2,896 verified decision-maker contacts tracked across these 38 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.