Company lists · Data refreshed September 2026
Top 25 Insider threat investigation companies based in the United Kingdom
RevenueBase identified 132 company matches for insider threat investigation companies associated with the United Kingdom as of September 2026 and tracks 1,801 professional contacts across them, including 639 with verified work emails. London is the largest hub.
This list covers company matches for insider threat 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 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.
The 25 largest insider threat investigation companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 20, 2026 · View company records in RevenueBase | |||||
| 2 | 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 20, 2026 · View company records in RevenueBase | |||||
| 3 | 125 contacts → | ||||
Exact match “Our mission is to eliminate the most complex cybersecurity challenge every organization faces: insider risk.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 117 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 20, 2026 · View company records in RevenueBase | |||||
| 5 | 94 contacts → | ||||
Exact match “Risk Advisory Group is a global business intelligence and investigations firm.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 66 contacts → | ||||
Exact match “NetWatch Global® specialise in online investigations and are experts in social media and open source investigation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 51 contacts → | ||||
Exact match “ExamWorks Investigation Services is a leading claims investigation company providing the insurance, banking, retail and other sectors with a range of innovative and cost effective…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 49 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 20, 2026 · View company records in RevenueBase | |||||
| 9 | 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 20, 2026 · View company records in RevenueBase | |||||
| 10 | 36 contacts → | ||||
Exact match “Harod Associates delivers global investigation and security solutions to complex crime and risk issues.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 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 20, 2026 · View company records in RevenueBase | |||||
| 12 | 29 contacts → | ||||
Exact match “Horus is a leading intelligence and security consultancy with a global, multilingual team of unrivalled experience, insight and operational expertise.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 22 contacts → | ||||
Exact match “Our Chartered Security Professionals seamlessly integrate discreet and effective security into lifestyles and organisations.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 21 contacts → | ||||
Exact match “Blacksmiths is a security risk consultancy company specialising in managing Insider risk, Threats and Cyber Security.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 18 contacts → | ||||
Exact match “Diligence is a private investigations firm, the output of our investigations help our clients make informed decisions bridging the gap between what they know and what they need to…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 14 contacts → | ||||
Exact match “The digital age is the new normal.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 14 contacts → | ||||
Exact match “The UK’s leading Surveillance, Intelligence and Open Source Investigations company.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 12 contacts → | ||||
Exact match “QCC Global Ltd is a leading global supplier of counter espionage and technical surveillance counter measures (TSCM) services to government, police and commercial organisations.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 10 contacts → | ||||
Exact match “Quest provides bespoke investigations, integrity and security services to corporate clients, sports organisations, and high net worth individuals.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 9 contacts → | ||||
Exact match “Silverbridge is an independent investigations and intelligence firm offering a full range of information gathering services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 9 contacts → | ||||
Exact match “Esoteric is a leading provider of counter-espionage and specialist covert surveillance services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 7 contacts → | ||||
Exact match “For many years ID Inquiries have performed corporate investigations and brand protection services for high-profile clients, in sectors such as premium broadcast protection and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 7 contacts → | ||||
Exact match “We are a leading international investigation and discovery company with five UK offices and a network of agents worldwide.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 6 contacts → | ||||
Exact match “We are a specialised investigations and intelligence consulting company providing knowledge, insight and advice to private and public sector clients around the world.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 6 contacts → | ||||
Exact match “Since incorporation in 2002, International Intelligence Limited has provided services world-wide in support of our Clients.” Recorded in the RevenueBase company graph · Sep 20, 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 “insider threat 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 132 insider threat investigation companies based in the United Kingdom
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Insider threat investigation companies based in the United Kingdom at a glance
As of Sep 20, 2026Companies by employee count
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 132 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 “insider threat 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 639 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 “insider threat investigation companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many insider threat investigation companies are there based in the United Kingdom?
RevenueBase identified 132 company matches for insider threat 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 insider threat investigation companies?
London leads with 59 company records, followed by Edinburgh (3) and Birmingham (2).
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 639 professional contacts with verified work emails tracked across these 132 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.
Ready to reach these companies? Verified emails and direct dials for all 132 insider threat investigation companies based in the United Kingdom. Start with a free account, no credit card.
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Insider threat investigation companies by geography
- Insider threat investigation companies based in Australia
- Insider threat investigation companies based in Brazil
- Insider threat investigation companies based in Canada
- Insider threat investigation companies based in India
- Insider threat investigation companies based in Italy
- Insider threat investigation companies based in the Netherlands
- Insider threat investigation companies based in the United States
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.
More company lists
- All company lists
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- Lists A-Z
- New lists
- Insider threat investigation companies based in Australia
- Insider threat investigation companies based in Brazil
- Insider threat investigation companies based in Canada
- Insider threat investigation companies based in India
- Insider threat investigation companies based in Italy
- Insider threat investigation companies based in the Netherlands
Company intelligence · public preview
Top 25 insider threat investigation companies based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 132 matching company records for insider threat investigation companies based in the United Kingdom, with 1,801 tracked contacts and 639 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 insider threat investigation companies based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Deepcytes Cyber Labs UKdeepcytes.ioHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 177 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  CCL Solutions Groupcclsolutionsgroup.comHQ: Stratford Upon Avon, United KingdomReported employees: 51-200 | Stratford Upon Avon, United Kingdom | 51-200 | Exact match | 138 contacts → |
“CCL Solutions Group is one of Europe’s leading digital forensics, digital investigation and cyber security specialists, supporting law enforcement, government agencies, military…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Egress, A Knowbe4 Companyegress.comHQ: 1 Old Street Yard, United KingdomReported employees: 201-500 | 1 Old Street Yard, United Kingdom | 201-500 | Exact match | 125 contacts → |
“Our mission is to eliminate the most complex cybersecurity challenge every organization faces: insider risk.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  FACTfact-uk.org.ukHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 117 contacts → |
“FACT are at the forefront of investigative and intelligence services, recognised by organisations, law enforcement, and governments worldwide.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  The Risk Advisory Groupriskadvisory.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 94 contacts → |
“Risk Advisory Group is a global business intelligence and investigations firm.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Netwatch Globalnetwatchglobal.comHQ: Birmingham, United KingdomReported employees: 51-200 | Birmingham, United Kingdom | 51-200 | Exact match | 66 contacts → |
“NetWatch Global® specialise in online investigations and are experts in social media and open source investigation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Examworks Investigation Servicesexamworks-is.co.ukHQ: Bolton, United KingdomReported employees: 51-200 | Bolton, United Kingdom | 51-200 | Exact match | 51 contacts → |
“ExamWorks Investigation Services is a leading claims investigation company providing the insurance, banking, retail and other sectors with a range of innovative and cost effective…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  GSA Globalgsaglobal.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 49 contacts → |
“GSA Global helps organisations, families and individuals respond to serious, complex and emerging security risks.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Intaforensicsintaforensics.comHQ: Nuneaton, United KingdomReported employees: 11-50 | Nuneaton, United Kingdom | 11-50 | Exact match | 44 contacts → |
“IntaForensics is a leading UK provider of Cyber Security, Digital Forensics, e-Discovery, and Cell Site Analysis services.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  HARODharodassociates.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 36 contacts → |
“Harod Associates delivers global investigation and security solutions to complex crime and risk issues.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  CYJAXcyjax.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 29 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Horus Security Consultancy Limitedhorus-security.co.ukHQ: Oxford, United KingdomReported employees: 11-50 | Oxford, United Kingdom | 11-50 | Exact match | 29 contacts → |
“Horus is a leading intelligence and security consultancy with a global, multilingual team of unrivalled experience, insight and operational expertise.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Kiris Groupkirisgroup.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 22 contacts → |
“Our Chartered Security Professionals seamlessly integrate discreet and effective security into lifestyles and organisations.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Blacksmiths Groupblacksmithsgroup.comHQ: Cheltenham, United KingdomReported employees: 11-50 | Cheltenham, United Kingdom | 11-50 | Exact match | 21 contacts → |
“Blacksmiths is a security risk consultancy company specialising in managing Insider risk, Threats and Cyber Security.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Diligencediligence.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 18 contacts → |
“Diligence is a private investigations firm, the output of our investigations help our clients make informed decisions bridging the gap between what they know and what they need to…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  BLD Blue Lights Digitalbluelightsdigital.comHQ: Duxford, United KingdomReported employees: 11-50 | Duxford, United Kingdom | 11-50 | Exact match | 14 contacts → |
“The digital age is the new normal.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | The Surveillance Groupthesurveillancegroup.com HQ: Worcester, United KingdomReported employees: 51-200 | Worcester, United Kingdom | 51-200 | Exact match | 14 contacts → |
“The UK’s leading Surveillance, Intelligence and Open Source Investigations company.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | QCC Global LTDqccglobal.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 12 contacts → |
“QCC Global Ltd is a leading global supplier of counter espionage and technical surveillance counter measures (TSCM) services to government, police and commercial organisations.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Quest provides bespoke investigations, integrity and security services to corporate clients, sports organisations, and high net worth individuals.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Silverbridgesilverbridgeintelligence.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 9 contacts → |
“Silverbridge is an independent investigations and intelligence firm offering a full range of information gathering services.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Esotericesotericltd.com HQ: Frimley, United KingdomReported employees: 1-10 | Frimley, United Kingdom | 1-10 | Exact match | 9 contacts → |
“Esoteric is a leading provider of counter-espionage and specialist covert surveillance services.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | ID Inquiries LTDidinquiries.com HQ: Glasgow, United KingdomReported employees: 11-50 | Glasgow, United Kingdom | 11-50 | Exact match | 7 contacts → |
“For many years ID Inquiries have performed corporate investigations and brand protection services for high-profile clients, in sectors such as premium broadcast protection and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Sirs Europesirseurope.co.uk HQ: Isleworth, United KingdomReported employees: 11-50 | Isleworth, United Kingdom | 11-50 | Exact match | 7 contacts → |
“We are a leading international investigation and discovery company with five UK offices and a network of agents worldwide.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Gray Page Limitedgraypage.com HQ: Oxford, United KingdomReported employees: 11-50 | Oxford, United Kingdom | 11-50 | Exact match | 6 contacts → |
“We are a specialised investigations and intelligence consulting company providing knowledge, insight and advice to private and public sector clients around the world.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | International Intelligence Limitedinternational-intelligence.co.uk HQ: Gloucester, United KingdomReported employees: 11-50 | Gloucester, United Kingdom | 11-50 | Exact match | 6 contacts → |
“Since incorporation in 2002, International Intelligence Limited has provided services world-wide in support of our Clients.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 132 company matches
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Insider threat investigation companies: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
131 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 132 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for insider threat investigation companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many insider threat investigation companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 132 matching company records, 1,801 tracked contacts and 639 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Insider threat investigation companies by geography
- Insider threat investigation companies based in Australia
- Insider threat investigation companies based in Brazil
- Insider threat investigation companies based in Canada
- Insider threat investigation companies based in India
- Insider threat investigation companies based in Italy
- Insider threat investigation companies based in the Netherlands
- Insider threat investigation companies based in the United States
Cite this list
RevenueBase Data Team. Top 25 insider threat investigation companies based in the United Kingdom. Snapshot: September 20, 2026. https://revenuebase.ai/companies/insider-threat-investigation-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Insider threat investigation companies based in Australia
- Insider threat investigation companies based in Brazil
- Insider threat investigation companies based in Canada
- Insider threat investigation companies based in India
- Insider threat investigation companies based in Italy
- Insider threat investigation companies based in the Netherlands
Company intelligence · public preview
Top 25 insider threat investigation companies based in the United Kingdom
RevenueBase records 132 matching company records for insider threat investigation companies based in the United Kingdom, with 1,801 tracked contacts and 639 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 insider threat investigation companies based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Deepcytes Cyber Labs UKdeepcytes.io HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 177 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | CCL Solutions Groupcclsolutionsgroup.com HQ: Stratford Upon Avon, United KingdomReported employees: 51-200 | Stratford Upon Avon, United Kingdom | 51-200 | Exact match | 138 contacts → |
“CCL Solutions Group is one of Europe’s leading digital forensics, digital investigation and cyber security specialists, supporting law enforcement, government agencies, military…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Egress, A Knowbe4 Companyegress.com HQ: 1 Old Street Yard, United KingdomReported employees: 201-500 | 1 Old Street Yard, United Kingdom | 201-500 | Exact match | 125 contacts → |
“Our mission is to eliminate the most complex cybersecurity challenge every organization faces: insider risk.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | FACTfact-uk.org.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 117 contacts → |
“FACT are at the forefront of investigative and intelligence services, recognised by organisations, law enforcement, and governments worldwide.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | The Risk Advisory Groupriskadvisory.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 94 contacts → |
“Risk Advisory Group is a global business intelligence and investigations firm.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Netwatch Globalnetwatchglobal.com HQ: Birmingham, United KingdomReported employees: 51-200 | Birmingham, United Kingdom | 51-200 | Exact match | 66 contacts → |
“NetWatch Global® specialise in online investigations and are experts in social media and open source investigation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Examworks Investigation Servicesexamworks-is.co.uk HQ: Bolton, United KingdomReported employees: 51-200 | Bolton, United Kingdom | 51-200 | Exact match | 51 contacts → |
“ExamWorks Investigation Services is a leading claims investigation company providing the insurance, banking, retail and other sectors with a range of innovative and cost effective…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | GSA Globalgsaglobal.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 49 contacts → |
“GSA Global helps organisations, families and individuals respond to serious, complex and emerging security risks.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Intaforensicsintaforensics.com HQ: Nuneaton, United KingdomReported employees: 11-50 | Nuneaton, United Kingdom | 11-50 | Exact match | 44 contacts → |
“IntaForensics is a leading UK provider of Cyber Security, Digital Forensics, e-Discovery, and Cell Site Analysis services.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HARODharodassociates.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 36 contacts → |
“Harod Associates delivers global investigation and security solutions to complex crime and risk issues.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | CYJAXcyjax.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 29 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Horus Security Consultancy Limitedhorus-security.co.uk HQ: Oxford, United KingdomReported employees: 11-50 | Oxford, United Kingdom | 11-50 | Exact match | 29 contacts → |
“Horus is a leading intelligence and security consultancy with a global, multilingual team of unrivalled experience, insight and operational expertise.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Kiris Groupkirisgroup.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 22 contacts → |
“Our Chartered Security Professionals seamlessly integrate discreet and effective security into lifestyles and organisations.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Blacksmiths Groupblacksmithsgroup.com HQ: Cheltenham, United KingdomReported employees: 11-50 | Cheltenham, United Kingdom | 11-50 | Exact match | 21 contacts → |
“Blacksmiths is a security risk consultancy company specialising in managing Insider risk, Threats and Cyber Security.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Diligencediligence.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 18 contacts → |
“Diligence is a private investigations firm, the output of our investigations help our clients make informed decisions bridging the gap between what they know and what they need to…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | BLD Blue Lights Digitalbluelightsdigital.com HQ: Duxford, United KingdomReported employees: 11-50 | Duxford, United Kingdom | 11-50 | Exact match | 14 contacts → |
“The digital age is the new normal.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | The Surveillance Groupthesurveillancegroup.com HQ: Worcester, United KingdomReported employees: 51-200 | Worcester, United Kingdom | 51-200 | Exact match | 14 contacts → |
“The UK’s leading Surveillance, Intelligence and Open Source Investigations company.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | QCC Global LTDqccglobal.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 12 contacts → |
“QCC Global Ltd is a leading global supplier of counter espionage and technical surveillance counter measures (TSCM) services to government, police and commercial organisations.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Quest provides bespoke investigations, integrity and security services to corporate clients, sports organisations, and high net worth individuals.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Silverbridgesilverbridgeintelligence.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 9 contacts → |
“Silverbridge is an independent investigations and intelligence firm offering a full range of information gathering services.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Esotericesotericltd.com HQ: Frimley, United KingdomReported employees: 1-10 | Frimley, United Kingdom | 1-10 | Exact match | 9 contacts → |
“Esoteric is a leading provider of counter-espionage and specialist covert surveillance services.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | ID Inquiries LTDidinquiries.com HQ: Glasgow, United KingdomReported employees: 11-50 | Glasgow, United Kingdom | 11-50 | Exact match | 7 contacts → |
“For many years ID Inquiries have performed corporate investigations and brand protection services for high-profile clients, in sectors such as premium broadcast protection and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Sirs Europesirseurope.co.uk HQ: Isleworth, United KingdomReported employees: 11-50 | Isleworth, United Kingdom | 11-50 | Exact match | 7 contacts → |
“We are a leading international investigation and discovery company with five UK offices and a network of agents worldwide.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Gray Page Limitedgraypage.com HQ: Oxford, United KingdomReported employees: 11-50 | Oxford, United Kingdom | 11-50 | Exact match | 6 contacts → |
“We are a specialised investigations and intelligence consulting company providing knowledge, insight and advice to private and public sector clients around the world.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | International Intelligence Limitedinternational-intelligence.co.uk HQ: Gloucester, United KingdomReported employees: 11-50 | Gloucester, United Kingdom | 11-50 | Exact match | 6 contacts → |
“Since incorporation in 2002, International Intelligence Limited has provided services world-wide in support of our Clients.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 132 company matches
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Insider threat investigation companies: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
131 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 132 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for insider threat investigation companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many insider threat investigation companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 132 matching company records, 1,801 tracked contacts and 639 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 insider threat investigation companies based in the United Kingdom. Snapshot: September 20, 2026. https://revenuebase.ai/companies/insider-threat-investigation-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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