Company lists · Data refreshed September 2026
Top 25 Counter-intelligence companies based in the United Kingdom
RevenueBase identified 111 company matches for counter-intelligence companies associated with the United Kingdom as of September 2026 and tracks 1,197 professional contacts across them, including 427 with verified work emails. London is the largest hub.
This list covers company matches for counter-intelligence 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 19, 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 counter-intelligence companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 19, 2026 · View company records in RevenueBase | |||||
| 2 | 78 contacts → | ||||
Exact match “Logically helps organizations make sense of complex information environments.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 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 19, 2026 · View company records in RevenueBase | |||||
| 4 | 64 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 19, 2026 · View company records in RevenueBase | |||||
| 5 | 62 contacts → | ||||
Exact match “Prevail Partners are mission-enablers.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 50 contacts → | ||||
Exact match “Dragonfly is a geopolitical and security intelligence service for the world’s leading organisations.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 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 19, 2026 · View company records in RevenueBase | |||||
| 8 | 23 contacts → | ||||
Exact match “Sastre is a research consultancy, a global collective of multi-lingual corporate investigations professionals and public policy analysts who specialise in modern open source…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 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 19, 2026 · View company records in RevenueBase | |||||
| 10 | 20 contacts → | ||||
Exact match “Komcept Solutions Ltd.(KSL) is a British company that has been providing cutting-edge security and intelligence solutions, and working with Government agencies both in the UK and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 14 contacts → | ||||
Exact match “The UK’s leading Surveillance, Intelligence and Open Source Investigations company.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 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 19, 2026 · View company records in RevenueBase | |||||
| 13 | 9 contacts → | ||||
Exact match “Esoteric is a leading provider of counter-espionage and specialist covert surveillance services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 8 contacts → | ||||
Exact match “CNS Risk provides strategic intelligence to support corporates and their legal and other external advisors.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 8 contacts → | ||||
Exact match “InsightX is a specialist independent intelligence, investigations and due diligence agency.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 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 19, 2026 · View company records in RevenueBase | |||||
| 17 | 5 contacts → | ||||
Exact match “Whiterock: a service delivery company that protects confidential business information against the threat of corporate espionage and unauthorised surveillance.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 5 contacts → | ||||
Exact match “Cloudbreak Analysis is a trusted British company specialising in OSINT and Intelligence Analysis training and consultancy.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 5 contacts → | ||||
Exact match “6S Global have over 25 years’ accredited experience in the Security, Business and Data Intelligence Industry.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 5 contacts → | ||||
Exact match “Since 1998, Simunix has been providing UK private and public sector organisations with the intelligence tools they need to prevent and protect against fraud, identity theft and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 3 contacts → | ||||
Exact match “Technical Solutions Group (TSG) stands as a trusted provider of comprehensive solutions in digital investigations, online investigations, radio frequency surveys, cell site…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 3 contacts → | ||||
Exact match “With roots in the armed services, MITMARK provides corporate security and intelligence support to governments, multinationals and private clients.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 2 contacts → | ||||
Exact match “Red Fox International (RFX) supports small and large multinational companies by implementing effective policies and services to protect their businesses from corporate espionage.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 2 contacts → | ||||
Exact match “Our mission is to set a new standard in risk management for the social media age.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 2 contacts → | ||||
Exact match “International intelligence specialists: With companies registered in the UK and Denmark, IMSL understands the huge potential that harnessing the power of quality, timely, and…” Recorded in the RevenueBase company graph · Sep 19, 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 “counter-intelligence 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 111 counter-intelligence companies based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 427 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Counter-intelligence companies based in the United Kingdom at a glance
As of Sep 19, 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 111 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 “counter-intelligence 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 427 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 19, 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 “counter-intelligence companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many counter-intelligence companies are there based in the United Kingdom?
RevenueBase identified 111 company matches for counter-intelligence 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?
FACT tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most counter-intelligence companies?
London leads with 64 company records, followed by Hereford (2) and Nottingham (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 427 professional contacts with verified work emails tracked across these 111 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 111 counter-intelligence companies based in the United Kingdom. Start with a free account, no credit card.
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Counter-intelligence companies by geography
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.
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Company intelligence · public preview
Top 25 counter-intelligence 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 111 matching company records for counter-intelligence companies based in the United Kingdom, with 1,197 tracked contacts and 427 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 19, 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 counter-intelligence 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 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Logicallylogically.aiHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 78 contacts → |
“Logically helps organizations make sense of complex information environments.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Wallbrook, Part Of Anthesiswallbrook.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 64 contacts → |
“We provide intelligence, advisory and investigative services to investors, companies and NGOs grappling with the world's most important issues.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Prevail Partners Limitedprevail-partners.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 62 contacts → |
“Prevail Partners are mission-enablers.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Dragonfly From DOW Jonesdowjones.comHQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 50 contacts → |
“Dragonfly is a geopolitical and security intelligence service for the world’s leading organisations.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Sastre Consultingsastreconsulting.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 23 contacts → |
“Sastre is a research consultancy, a global collective of multi-lingual corporate investigations professionals and public policy analysts who specialise in modern open source…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Komcept Solutions Limitedkomcept.comHQ: Ashton, United KingdomReported employees: 11-50 | Ashton, United Kingdom | 11-50 | Exact match | 20 contacts → |
“Komcept Solutions Ltd.(KSL) is a British company that has been providing cutting-edge security and intelligence solutions, and working with Government agencies both in the UK and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | CNS Riskcnsrisk.com HQ: Chobham, United KingdomReported employees: 11-50 | Chobham, United Kingdom | 11-50 | Exact match | 8 contacts → |
“CNS Risk provides strategic intelligence to support corporates and their legal and other external advisors.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Insightxinsightxintel.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 8 contacts → |
“InsightX is a specialist independent intelligence, investigations and due diligence agency.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Whiterockwhiterock.world HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Whiterock: a service delivery company that protects confidential business information against the threat of corporate espionage and unauthorised surveillance.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cloudbreak Analysiscloudbreakanalysis.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Cloudbreak Analysis is a trusted British company specialising in OSINT and Intelligence Analysis training and consultancy.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  6s Global Limited6sglobal.co.ukHQ: Dartford, United KingdomReported employees: 1-10 | Dartford, United Kingdom | 1-10 | Exact match | 5 contacts → |
“6S Global have over 25 years’ accredited experience in the Security, Business and Data Intelligence Industry.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Simunixsimunix.comHQ: York, United KingdomReported employees: 11-50 | York, United Kingdom | 11-50 | Exact match | 5 contacts → |
“Since 1998, Simunix has been providing UK private and public sector organisations with the intelligence tools they need to prevent and protect against fraud, identity theft and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Technical Solutions Grouptsg-ops.com HQ: Hereford, United KingdomReported employees: 1-10 | Hereford, United Kingdom | 1-10 | Exact match | 3 contacts → |
“Technical Solutions Group (TSG) stands as a trusted provider of comprehensive solutions in digital investigations, online investigations, radio frequency surveys, cell site…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Mitmark Intelligencemitmark-intelligence.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 3 contacts → |
“With roots in the armed services, MITMARK provides corporate security and intelligence support to governments, multinationals and private clients.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | RFX Internationalrfxint.com HQ: Teddingham, United KingdomReported employees: 1-10 | Teddingham, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Red Fox International (RFX) supports small and large multinational companies by implementing effective policies and services to protect their businesses from corporate espionage.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Elninioelnin.io HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Our mission is to set a new standard in risk management for the social media age.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | IMSLintelmsl.com HQ: Corsham, United KingdomReported employees: 11-50 | Corsham, United Kingdom | 11-50 | Exact match | 2 contacts → |
“International intelligence specialists: With companies registered in the UK and Denmark, IMSL understands the huge potential that harnessing the power of quality, timely, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 111 company matches
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Counter-intelligence companies: dataset insights
September 19, 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
111 records in the displayed employee bands.
0 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 111 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 19, 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 counter-intelligence 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 counter-intelligence companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 111 matching company records, 1,197 tracked contacts and 427 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 19, 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
Counter-intelligence companies by geography
Cite this list
RevenueBase Data Team. Top 25 counter-intelligence companies based in the United Kingdom. Snapshot: September 19, 2026. https://revenuebase.ai/companies/counter-intelligence-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
- Counter-intelligence companies based in Brazil
- Counter-intelligence companies based in Canada
- Counter-intelligence companies based in Israel
- Counter-intelligence companies based in the United States
- AI companies based in the United Kingdom
- Cybersecurity companies based in the United Kingdom
Company intelligence · public preview
Top 25 counter-intelligence companies based in the United Kingdom
RevenueBase records 111 matching company records for counter-intelligence companies based in the United Kingdom, with 1,197 tracked contacts and 427 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 19, 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 counter-intelligence 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 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Logicallylogically.ai HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 78 contacts → |
“Logically helps organizations make sense of complex information environments.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Wallbrook, Part Of Anthesiswallbrook.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 64 contacts → |
“We provide intelligence, advisory and investigative services to investors, companies and NGOs grappling with the world's most important issues.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Prevail Partners Limitedprevail-partners.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 62 contacts → |
“Prevail Partners are mission-enablers.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Dragonfly From DOW Jonesdowjones.com HQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 50 contacts → |
“Dragonfly is a geopolitical and security intelligence service for the world’s leading organisations.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Sastre Consultingsastreconsulting.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 23 contacts → |
“Sastre is a research consultancy, a global collective of multi-lingual corporate investigations professionals and public policy analysts who specialise in modern open source…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Komcept Solutions Limitedkomcept.com HQ: Ashton, United KingdomReported employees: 11-50 | Ashton, United Kingdom | 11-50 | Exact match | 20 contacts → |
“Komcept Solutions Ltd.(KSL) is a British company that has been providing cutting-edge security and intelligence solutions, and working with Government agencies both in the UK and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | CNS Riskcnsrisk.com HQ: Chobham, United KingdomReported employees: 11-50 | Chobham, United Kingdom | 11-50 | Exact match | 8 contacts → |
“CNS Risk provides strategic intelligence to support corporates and their legal and other external advisors.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Insightxinsightxintel.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 8 contacts → |
“InsightX is a specialist independent intelligence, investigations and due diligence agency.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Whiterockwhiterock.world HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Whiterock: a service delivery company that protects confidential business information against the threat of corporate espionage and unauthorised surveillance.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cloudbreak Analysiscloudbreakanalysis.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Cloudbreak Analysis is a trusted British company specialising in OSINT and Intelligence Analysis training and consultancy.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | 6s Global Limited6sglobal.co.uk HQ: Dartford, United KingdomReported employees: 1-10 | Dartford, United Kingdom | 1-10 | Exact match | 5 contacts → |
“6S Global have over 25 years’ accredited experience in the Security, Business and Data Intelligence Industry.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Simunixsimunix.com HQ: York, United KingdomReported employees: 11-50 | York, United Kingdom | 11-50 | Exact match | 5 contacts → |
“Since 1998, Simunix has been providing UK private and public sector organisations with the intelligence tools they need to prevent and protect against fraud, identity theft and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Technical Solutions Grouptsg-ops.com HQ: Hereford, United KingdomReported employees: 1-10 | Hereford, United Kingdom | 1-10 | Exact match | 3 contacts → |
“Technical Solutions Group (TSG) stands as a trusted provider of comprehensive solutions in digital investigations, online investigations, radio frequency surveys, cell site…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Mitmark Intelligencemitmark-intelligence.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 3 contacts → |
“With roots in the armed services, MITMARK provides corporate security and intelligence support to governments, multinationals and private clients.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | RFX Internationalrfxint.com HQ: Teddingham, United KingdomReported employees: 1-10 | Teddingham, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Red Fox International (RFX) supports small and large multinational companies by implementing effective policies and services to protect their businesses from corporate espionage.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Elninioelnin.io HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Our mission is to set a new standard in risk management for the social media age.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | IMSLintelmsl.com HQ: Corsham, United KingdomReported employees: 11-50 | Corsham, United Kingdom | 11-50 | Exact match | 2 contacts → |
“International intelligence specialists: With companies registered in the UK and Denmark, IMSL understands the huge potential that harnessing the power of quality, timely, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 111 company matches
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Counter-intelligence companies: dataset insights
September 19, 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
111 records in the displayed employee bands.
0 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 111 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 19, 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 counter-intelligence 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 counter-intelligence companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 111 matching company records, 1,197 tracked contacts and 427 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 19, 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
Counter-intelligence companies by geography
Cite this list
RevenueBase Data Team. Top 25 counter-intelligence companies based in the United Kingdom. Snapshot: September 19, 2026. https://revenuebase.ai/companies/counter-intelligence-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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