Company lists · Data refreshed September 2026

Top 25 Incident response teams based in the United Kingdom

RevenueBase identified 340 company matches for incident response teams associated with the United Kingdom as of September 2026 and tracks 5,450 professional contacts across them, including 1,916 with verified work emails. London is the largest hub.

This list covers company matches for incident response teams 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 20, 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 20, 2026 How this list was built
340Companies
5,450Contacts tracked
1,916Verified emails
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The 25 largest incident response teams based in the United Kingdom

Ranked by team size
Top 25 of 340 company matches for incident response teams based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchLondon, United KingdomHQ recorded Sep 20, 2026501-1,000502 contacts →

Exact match

“SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-500351 contacts →

Exact match

“S-RM is a global intelligence and cyber security consultancy.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-500242 contacts →

Exact match

“Obrela Security Industries is a global provider of cyber security services.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200177 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 20, 2026 · View company records in RevenueBase
5Exact matchThatcham, United KingdomHQ recorded Sep 20, 202651-200159 contacts →

Exact match

“At Cyberfort we are passionate about the cyber security services we deliver for our customers which keeps their people, data, systems and technology infrastructure secure…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchStratford Upon Avon, United KingdomHQ recorded Sep 20, 202651-200138 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 20, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20087 contacts →

Exact match

“ITC Secure is an advisory-led cyber security services company.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchStourport-on-severn, United KingdomHQ recorded Sep 20, 2026201-50086 contacts →

Exact match

“CyberGuard Technologies is the security division of Wavenet.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchBasingstoke, United KingdomHQ recorded Sep 20, 202611-5085 contacts →

Exact match

“Amethyst Risk Management is a leading cybersecurity consultancy supplying expert services and support to the UK Government, Defence, Operators of Essential Services, and the…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchSwindon, United KingdomHQ recorded Sep 20, 202651-20080 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 20, 2026 · View company records in RevenueBase
11Exact matchWaterloo, United KingdomHQ recorded Sep 20, 202651-20080 contacts →

Exact match

“At Reliance Cyber, we believe in truly partnering with our customers.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20077 contacts →

Exact match

“White Hat, part of the EPAM group, is an award-winning cyber intelligence and offensive security company that leverages an attacker’s perspective to shape innovative, proactive…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchAlderley Edge, United KingdomHQ recorded Sep 20, 202651-20057 contacts →

Exact match

“CyberLab is the UK-leading cyber security consultancy and managed services provider, trusted by over 1,200 enterprise businesses, government departments, and household names to…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20052 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 20, 2026 · View company records in RevenueBase
15Exact matchEdinburgh, United KingdomHQ recorded Sep 20, 2026201-50051 contacts →

Exact match

“We are Adarma, independent leaders in detection and response services.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchLuton, United KingdomHQ recorded Sep 20, 202651-20045 contacts →

Exact match

“Established in 2004 (acquired by Gamma in 2023), Satisnet, a Gamma company is a pedigree-proven cyber security services and solutions specialist with a fully UK-based 24x7x365 SOC.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchNuneaton, United KingdomHQ recorded Sep 20, 202611-5044 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 20, 2026 · View company records in RevenueBase
18Exact matchBirmingham, United KingdomHQ recorded Sep 20, 202651-20042 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 20, 2026 · View company records in RevenueBase
19Exact matchCirencester, United KingdomHQ recorded Sep 20, 202611-5039 contacts →

Exact match

“We help organisations understand, optimise, and strengthen their cybersecurity.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchCorsham, United KingdomHQ recorded Sep 20, 202611-5039 contacts →

Exact match

“Computer Network Defence Ltd are a UK based cyber security consultancy with an extremely broad spectrum of capability.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchSaffron Walden, United KingdomHQ recorded Sep 20, 202651-20038 contacts →

Exact match

“Omerta - A Global Security Technology and Services Company.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchCheadle, United KingdomHQ recorded Sep 20, 202651-20038 contacts →

Exact match

“Mitigo Group keeps professional services firms safe from cyberattack and operationally resilient.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchManchester, United KingdomHQ recorded Sep 20, 202611-5036 contacts →

Exact match

“Secarma exists to keep the world safe.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchActon, United KingdomHQ recorded Sep 20, 202651-20036 contacts →

Exact match

“Adaptive Cyber Security JUMPSEC operates on a core principle: real attack insight drives stronger defence.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchGlasgow, United KingdomHQ recorded Sep 20, 202611-5034 contacts →

Exact match

“We are your strategic cybersecurity partner – going beyond traditional models to deliver agile, expert-led protection tailored to the needs of regulated industries and critical…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 340 incident response teams based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,916 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Incident response teams based in the United Kingdom at a glance

As of Sep 20, 2026
35.2%Verified-email coverage
16.0Average contacts per company
1-10Median size (employees)
41.5%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
186
11-50
102
51-200
34
201-500
10
501-1,000
5
1,001-5,000
1
10001+
1

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 340 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 “incident response teams” 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 1,916 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 20, 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 “incident response teams”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many incident response teams are there based in the United Kingdom?

RevenueBase identified 340 company matches for incident response teams 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?

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

Which city has the most incident response teams?

London leads with 141 company records, followed by Manchester (17) and Birmingham (11).

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 1,916 professional contacts with verified work emails tracked across these 340 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 20, 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.