Company lists · Data refreshed September 2026

Top 25 Cybersecurity incident investigation companies based in the United Kingdom

Name: Cybersecurity incident investigation companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 180 companies tracked

RevenueBase identified 180 company matches for cybersecurity incident investigation companies associated with the United Kingdom as of September 2026 and tracks 2,805 professional contacts across them, including 646 with verified work emails. London is the largest hub.

This list covers company matches for cybersecurity incident investigation companies associated with the United Kingdom, 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 September 28, 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 Sep 28, 2026 How this list was built

180Companies

2,805Contacts tracked

646Verified emails

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The 25 largest cybersecurity incident investigation companies based in the United Kingdom

Ranked by team size

Top 25 of 180 company matches for cybersecurity incident investigation companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Deepcytes Cyber Labs UK	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	177 contacts →
	Exact match “Whether you’re a business or an individual, digital threats to your precious data and assets can come in any form - external or internal.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	CCL Solutions Group	Exact match	Stratford Upon Avon, United KingdomHQ recorded Sep 28, 2026	51-200	138 contacts →
	Exact match “CCL Solutions Group is one of Europe’s leading digital forensics, digital investigation and cyber security specialists, supporting law enforcement, government agencies, military…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Foregenix	Exact match	Swindon, United KingdomHQ recorded Sep 28, 2026	51-200	80 contacts →
	Exact match “When your business relies on security, compliance and a strong reputation for taking care of your customers, you need a partner that understands your ethos, your challenges and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Reliance Cyber	Exact match	Waterloo, United KingdomHQ recorded Sep 28, 2026	51-200	80 contacts →
	Exact match “At Reliance Cyber, we believe in truly partnering with our customers.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Sytech	Exact match	Stoke-on-trent, United KingdomHQ recorded Sep 28, 2026	51-200	64 contacts →
	Exact match “Empowering Decision Making Through Subject-Matter Expertise.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Hexegic	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	52 contacts →
	Exact match “At Hexegic we are not just passionate about protecting data through our Cyber services we are passionate about helping companies release the potential of the data they hold…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Adarma Security	Exact match	Edinburgh, United KingdomHQ recorded Sep 28, 2026	201-500	51 contacts →
	Exact match “We are Adarma, independent leaders in detection and response services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Intaforensics	Exact match	Nuneaton, United KingdomHQ recorded Sep 28, 2026	11-50	44 contacts →
	Exact match “IntaForensics is a leading UK provider of Cyber Security, Digital Forensics, e-Discovery, and Cell Site Analysis services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Cyberq Group	Exact match	Birmingham, United KingdomHQ recorded Sep 28, 2026	51-200	42 contacts →
	Exact match “CyberQ Group is an award-winning, venture-backed, and globally accredited [ISO27K and CREST] cybersecurity leader dedicated to bridging the "protection gap" for high-stakes…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Core To Cloud	Exact match	Cirencester, United KingdomHQ recorded Sep 28, 2026	11-50	39 contacts →
	Exact match “We help organisations understand, optimise, and strengthen their cybersecurity.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Secarma LTD	Exact match	Manchester, United KingdomHQ recorded Sep 28, 2026	11-50	36 contacts →
	Exact match “Secarma exists to keep the world safe.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Cyberis	Exact match	Tewkesbury, United KingdomHQ recorded Sep 28, 2026	11-50	34 contacts →
	Exact match “Cyberis are pioneers in customer-focussed information security.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	defense.com	Exact match	Stevenage, United KingdomHQ recorded Sep 28, 2026	51-200	32 contacts →
	Exact match “Defense.com is transforming the way businesses manage cyber security by allowing them to easily identify, prioritise and remediate threats.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Intrinsic Security	Exact match	Peterborough, United KingdomHQ recorded Sep 28, 2026	51-200	32 contacts →
	Exact match “Intrinsic Security is a UK-headquartered cybersecurity firm delivering 24/7 threat detection, incident response, and resilience across cloud, hybrid, OT, IoT, and identity…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Procheckup PCU	Exact match	Portsmouth, United KingdomHQ recorded Sep 28, 2026	11-50	29 contacts →
	Exact match “Imagine a world where cyber threats are simply another challenge that you're fully equipped to handle.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	CYJAX	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	29 contacts →
	Exact match “CYJAX is an award-winning technology company and provider of digital threat intelligence services to international corporations, law enforcement agencies and the public sector.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	AMR Cybersecurity	Exact match	Cheltenham, United KingdomHQ recorded Sep 28, 2026	11-50	23 contacts →
	Exact match “AMR CyberSecurity delivers next generation cyber security services to assist organisations across a wide variety of sectors in understanding potential threats and effectively…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Cybercrowd	Exact match	Newbury, United KingdomHQ recorded Sep 28, 2026	11-50	23 contacts →
	Exact match “CyberCrowd are a market leader in the cyber security realm, offering everything from Assessment Services through to Pen Testing, CISOaaS, Certification Readiness, DPO services…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Templar Executives	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	21 contacts →
	Exact match “Templar Executives is an award winning, international Cyber Security advisory services and solutions company operating at the highest levels across the public and private sectors.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	3b Data Security	Exact match	Cambridge, United KingdomHQ recorded Sep 28, 2026	11-50	21 contacts →
	Exact match “Digital Forensics, Incident Response & Data Breach Management Services 3B Data Security is an approved PCI SSC PCI Forensic Investigator (PFI) and Qualified Security Assessor…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Secure Purple	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	20 contacts →
	Exact match “Secure Purple is a leading cyber security and digital safety firm that provides innovative solutions and services to help organisations and individuals stay protected in the…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	th4ts3cur1ty.company	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	18 contacts →
	Exact match “th4ts3cur1ty.company supplies cyber security services internationally.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	BLD Blue Lights Digital	Exact match	Duxford, United KingdomHQ recorded Sep 28, 2026	11-50	14 contacts →
	Exact match “The digital age is the new normal.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Isanctuary	Exact match	Cambridge, United KingdomHQ recorded Sep 28, 2026	11-50	14 contacts →
	Exact match “Technology & Forensic Investigation Company for Asset Tracing, Fraud, & Financial Disputes When your money, assets, or reputation are at risk, you need answers you can trust.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Cyber Armed Security	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	12 contacts →
	Exact match “At Cyber Armed Security, we protect organisations worldwide from evolving cyber threats through intelligence-driven ethical hacking.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “cybersecurity incident investigation companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 180 cybersecurity incident investigation companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 646 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity incident investigation companies based in the United Kingdom at a glance

As of Sep 28, 2026

23.0%Verified-email coverage

15.6Average contacts per company

1-10Median size (employees)

41.1%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 180 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 Kingdom whose business descriptions match “cybersecurity incident investigation 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. 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 646 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 September 28, 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.

Cybersecurity incident investigation companies by metro

Cybersecurity incident investigation companies in London74

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 “cybersecurity incident investigation companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity incident investigation companies are there based in the United Kingdom?

RevenueBase identified 180 company matches for cybersecurity incident investigation companies associated with the United Kingdom as of September 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?

Deepcytes Cyber Labs UK tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most cybersecurity incident investigation companies?

London leads with 74 company records, followed by Manchester (8) and Cheltenham (6).

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 646 professional contacts with verified work emails tracked across these 180 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 September 28, 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.