Company lists · Data refreshed September 2026

Top 25 Security investigation consultants based in the United Kingdom

RevenueBase identified 833 company matches for security investigation consultants associated with the United Kingdom as of September 2026 and tracks 6,104 professional contacts across them, including 1,139 with verified work emails. London is the largest hub.

This list covers company matches for security investigation consultants 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 29, 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 29, 2026 How this list was built
833Companies
6,104Contacts tracked
1,139Verified emails
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The 25 largest security investigation consultants based in the United Kingdom

Ranked by team size
Top 25 of 833 company matches for security investigation consultants based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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 matchLeeds, United KingdomHQ recorded Sep 29, 20261,001-5,000180 contacts →

Exact match

“Established in 1978, Bridgegate Security is proud to be one of the UK’s largest independent security contractors.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-200140 contacts →

Exact match

“Corporate Research and Investigations Limited is a global provider of investigative research, background screening and business due diligence services for the world’s leading…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchStratford Upon Avon, United KingdomHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-200117 contacts →

Exact match

“FACT are at the forefront of investigative and intelligence services, recognised by organisations, law enforcement, and governments worldwide.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchHornchurch, United KingdomHQ recorded Sep 29, 2026501-1,000111 contacts →

Exact match

“We are a well-established company that supplies specialist Close Protection, Door Supervisor services to Private Individuals, Visiting Royal Families, Government Officials…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 29, 2026201-50097 contacts →

Exact match

“As an independent IT security specialist, Caretower provide comprehensive solutions to individual problems, thus allowing our recommendations to be unbiased.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchWhiteley, United KingdomHQ recorded Sep 29, 2026501-1,00087 contacts →

Exact match

“Croma Security Solutions Group (CSSG) began in 1970 as a family-run business in Shirley, Southampton, known as County Locksmiths.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchBasingstoke, United KingdomHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
9Exact matchHigh Wycombe, United KingdomHQ recorded Sep 29, 202651-20074 contacts →

Exact match

“Saepio increase awareness, reduce risk and improve security in a continually evolving threat landscape.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20064 contacts →

Exact match

“We provide intelligence, advisory and investigative services to investors, companies and NGOs grappling with the world's most important issues.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchMacclesfield, United KingdomHQ recorded Sep 29, 202611-5061 contacts →

Exact match

“MDSec are a UK based consultancy with a passion for information security.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20060 contacts →

Exact match

“We provide deep expertise with technical and business specialists to help clients secure and protect the UK.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchBarnet, United KingdomHQ recorded Sep 29, 2026501-1,00058 contacts →

Exact match

“In today’s advanced, interconnected world, protecting the infrastructure that allows society to function is crucial.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchAlderley Edge, United KingdomHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
15Exact matchCumbernauld, United KingdomHQ recorded Sep 29, 2026201-50051 contacts →

Exact match

“Portal Security is a leading provider of security services dedicated to safeguarding individuals, businesses, and communities.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5049 contacts →

Exact match

“GSA Global helps organisations, families and individuals respond to serious, complex and emerging security risks.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20048 contacts →

Exact match

“In today’s complex threat environment, businesses, individuals, and organisations require trusted partners to provide the ultimate assurance that their assets are well protected.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchHereford, United KingdomHQ recorded Sep 29, 202611-5040 contacts →

Exact match

“Minerva Elite is a niche consultancy providing high quality bespoke security and risk management solutions to its clients.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchCorsham, United KingdomHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
20Exact matchEpsom, United KingdomHQ recorded Sep 29, 202651-20039 contacts →

Exact match

“Founded by Ken Dulieu, Capcon initially specialised in the provision of stocktaking and investigation services, before diversifying to include the provision of security personnel…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5039 contacts →

Exact match

“SECFORCE are vendor independent offensive security specialists providing effective business risk intelligence and strategic security consulting.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5036 contacts →

Exact match

“Harod Associates delivers global investigation and security solutions to complex crime and risk issues.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchCaerphilly, United KingdomHQ recorded Sep 29, 202651-20036 contacts →

Exact match

“At FireRite we’re passionate about life safety and asset protection.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20035 contacts →

Exact match

“At VENOVOX, we are a premier consultancy in risk management and background screening, delivering specialised services in due diligence, security advisory, background checks, and…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchCheadle Hulme, United KingdomHQ recorded Sep 29, 202651-20030 contacts →

Exact match

“RGI Solutions - Solving the Toughest Cases with Precision and Expertise Welcome to RGI Solutions, the leading independent investigations company in the UK!”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 833 security investigation consultants based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,139 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Security investigation consultants based in the United Kingdom at a glance

As of Sep 29, 2026
18.7%Verified-email coverage
7.3Average contacts per company
1-10Median size (employees)
31.8%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
511
11-50
210
51-200
81
201-500
17
501-1,000
6
1,001-5,000
2
5,001-10,000
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 833 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 “security investigation consultants” 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 1,139 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 29, 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.

Security investigation consultants by metro

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

How many security investigation consultants are there based in the United Kingdom?

RevenueBase identified 833 company matches for security investigation consultants 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?

Bridgegate Security UK Limited tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most security investigation consultants?

London leads with 265 company records, followed by Manchester (16) and Bristol (12).

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 1,139 professional contacts with verified work emails tracked across these 833 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 29, 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.