Company lists · Data refreshed September 2026
Top 25 Physical security companies based in the United Kingdom
RevenueBase identified 1,661 company matches for physical security companies associated with the United Kingdom as of September 2026 and tracks 18,135 professional contacts across them, including 2,944 with verified work emails and 955 with mobile numbers. London is the largest hub.
This list covers company matches for physical security 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 5, 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 physical security companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 919 contacts → | ||||
Exact match “CIS Security is an independent security company equipped to help customers to solve the complex challenges in today’s digital, connected and regulated business world.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 2 | 765 contacts → | ||||
Exact match “Ranked in the top 1% of UK security companies, as approved by the Security Industry Authority, SecuriGroup is an award-winning security company, specialising in the provision of…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 3 | 389 contacts → | ||||
Exact match “Mitie Fire & Security is part of Mitie, the UK’s leading facilities management and professional services company, delivering integrated fire and security solutions that protect…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 4 | 326 contacts → | ||||
Exact match “Established in 1993, with commitment to our customers and staff alongside a strong ethos and standards driven approach, Regency Security is now the largest provider of door…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 5 | 232 contacts → | ||||
Exact match “Established in 1994, Interr is a specialist agency providing intelligent guarding, reception, remote monitoring & response and front of house solutions within the retail, hotel…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 6 | 166 contacts → | ||||
Exact match “Trigion Security Services is the UK provider of Security Guarding and Technical Solutions for Facilicom UK.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 7 | 137 contacts → | ||||
Exact match “The Keyholding Company are a tech-enabled mobile security services company, specialising in alarm response, mobile patrols, locks and unlocks, emergency and temporary guarding…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 8 | 126 contacts → | ||||
Exact match “About Kingdom Security Established in March 1993, Kingdom Security is a leading UK security provider delivering professional, fully licensed security services nationwide.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 9 | 116 contacts → | ||||
Exact match “TSP has a reputation for providing enterprise security solutions, as well as excellent system integration standards and exceptional aftercare support, since its founding in 1988.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 10 | 113 contacts → | ||||
Exact match “Bradbury Group is the UK’s largest manufacturer of physical security products, including steel doors, grilles and cages.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 11 | 105 contacts → | ||||
Exact match “City Security understands that our staff are the first and last person a patron encounters on their visit to a venue.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 12 | 93 contacts → | ||||
Exact match “Innovation is at our core.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 13 | 89 contacts → | ||||
Exact match “For a better service and competitive price try K4 Security Services At K4 we offer the following: 1.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 14 | 87 contacts → | ||||
Exact match “Croma Security Solutions Group (CSSG) began in 1970 as a family-run business in Shirley, Southampton, known as County Locksmiths.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 15 | 85 contacts → | ||||
Exact match “At Servoca Secure Solutions, we take great pride in delivering a multi-service security business; offering a range of complementary products and services to both the public and…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 16 | 81 contacts → | ||||
Exact match “Nationwide Security providing both physical and electrical security services throughout the UK.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 17 | 70 contacts → | ||||
Exact match “With over 50 years’ experience in the security industry, Abel has grown to become one of the UK’s largest privately owned providers of electronic security systems.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 18 | 69 contacts → | ||||
Exact match “Northern Security Ltd is a leading guarding, alarm response and electronic security business operating throughout the North of England and South West Scotland.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 19 | 64 contacts → | ||||
Exact match “We are a globally recognised leader in design-led physical security solutions.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 20 | 64 contacts → | ||||
Exact match “United Guarding Services has been a trusted name in the security industry for over 30 years, providing high-performance security solutions for prestigious premises in London and…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 21 | 64 contacts → | ||||
Exact match “City Security Services (CSS) have more than 25 years’ experience within the corporate security, public sector, education and social housing markets delivering manned guarding…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 22 | 61 contacts → | ||||
Exact match “WLS (West London Security) has been providing security and solutions to London's homes and businesses for over 40 years.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 23 | 60 contacts → | ||||
Exact match “Sentinel Group Security is a fast growing provider of all aspects of security personnel and manned security services operating across the United Kingdom.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 24 | 58 contacts → | ||||
Exact match “Black Diamond Security - Safeguarding Your World.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 25 | 53 contacts → | ||||
Exact match “Shield Security Services Limited was incorporated in 1986.” Recorded in the RevenueBase company graph · Sep 5, 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 “physical security 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 1,661 physical security companies based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 2,944 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Physical security companies based in the United Kingdom at a glance
As of Sep 5, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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 “physical security 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 2,944 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 5, 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.
Physical security companies by metro
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “physical security companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many physical security companies are there based in the United Kingdom?
RevenueBase identified 1,661 company matches for physical security 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?
CIS Security Limited tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most physical security companies?
London leads with 281 company records, followed by Manchester (47) and Birmingham (38).
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 2,944 professional contacts with verified work emails tracked across these 1,661 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 5, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,661 physical security companies based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Physical security companies by geography
- Physical security companies based in the United States
- Physical security companies based in Brazil
- Physical security companies based in France
- Physical security companies based in Canada
- Physical security companies based in Germany
- Physical security companies based in Australia
- Physical security companies based in the Netherlands
- Physical security companies based in Italy
- Physical security companies based in South Africa
- Physical security companies based in Spain
- Physical security companies based in Mexico
- Physical security companies based in Argentina
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
- Lists by location
- Lists A-Z
- New lists
- Physical security companies based in the United States
- Physical security companies based in Brazil
- Physical security companies based in France
- Physical security companies based in Canada
- Physical security companies based in Germany
- Physical security companies based in Australia
Company intelligence · public preview
Top 25 physical security 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 1,661 matching company records for physical security companies based in the United Kingdom, with 18,135 tracked contacts and 2,944 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 5, 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 physical security 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 |  CIS Security Limitedcis-security.co.ukHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 919 contacts → |
“CIS Security is an independent security company equipped to help customers to solve the complex challenges in today’s digital, connected and regulated business world.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Securigroupsecurigroup.co.ukHQ: United KingdomReported employees: 1,001-5,000 | United Kingdom | 1,001-5,000 | Exact match | 765 contacts → |
“Ranked in the top 1% of UK security companies, as approved by the Security Industry Authority, SecuriGroup is an award-winning security company, specialising in the provision of…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Marlowe Fire & Securitymitiefireandsecurity.comHQ: Manchester, United KingdomReported employees: 501-1,000 | Manchester, United Kingdom | 501-1,000 | Exact match | 389 contacts → |
“Mitie Fire & Security is part of Mitie, the UK’s leading facilities management and professional services company, delivering integrated fire and security solutions that protect…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Regency Securityregencysecurity.co.ukHQ: Braintree, United KingdomReported employees: 1,001-5,000 | Braintree, United Kingdom | 1,001-5,000 | Exact match | 326 contacts → |
“Established in 1993, with commitment to our customers and staff alongside a strong ethos and standards driven approach, Regency Security is now the largest provider of door…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Interrinterr.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 232 contacts → |
“Established in 1994, Interr is a specialist agency providing intelligent guarding, reception, remote monitoring & response and front of house solutions within the retail, hotel…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Trigion Security Services LTDtrigion.co.ukHQ: Sidcup, United KingdomReported employees: 201-500 | Sidcup, United Kingdom | 201-500 | Exact match | 166 contacts → |
“Trigion Security Services is the UK provider of Security Guarding and Technical Solutions for Facilicom UK.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  The Keyholding Companykeyholding.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 137 contacts → |
“The Keyholding Company are a tech-enabled mobile security services company, specialising in alarm response, mobile patrols, locks and unlocks, emergency and temporary guarding…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Kingdom Security Serviceskingdom.co.ukHQ: Newton-le-willows, United KingdomReported employees: 5,001-10,000 | Newton-le-willows, United Kingdom | 5,001-10,000 | Exact match | 126 contacts → |
“About Kingdom Security Established in March 1993, Kingdom Security is a leading UK security provider delivering professional, fully licensed security services nationwide.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Total Security Protection LTDtsp.co.ukHQ: Watford, United KingdomReported employees: 51-200 | Watford, United Kingdom | 51-200 | Exact match | 116 contacts → |
“TSP has a reputation for providing enterprise security solutions, as well as excellent system integration standards and exceptional aftercare support, since its founding in 1988.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Bradbury Groupbradbury-group.comHQ: Scunthorpe, United KingdomReported employees: 201-500 | Scunthorpe, United Kingdom | 201-500 | Exact match | 113 contacts → |
“Bradbury Group is the UK’s largest manufacturer of physical security products, including steel doors, grilles and cages.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  City Securitycitysecurityplymouth.co.ukHQ: Plympton, United KingdomReported employees: 51-200 | Plympton, United Kingdom | 51-200 | Exact match | 105 contacts → |
“City Security understands that our staff are the first and last person a patron encounters on their visit to a venue.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Prime Secureprime-secure.co.ukHQ: Glasgow, United KingdomReported employees: 51-200 | Glasgow, United Kingdom | 51-200 | Exact match | 93 contacts → |
“Innovation is at our core.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  K4 Security - K4 Groupk4security.co.ukHQ: Hounslow, United KingdomReported employees: 201-500 | Hounslow, United Kingdom | 201-500 | Exact match | 89 contacts → |
“For a better service and competitive price try K4 Security Services At K4 we offer the following: 1.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Croma Security Solutions Group PLC Cssgcssgplc.comHQ: Whiteley, United KingdomReported employees: 501-1,000 | Whiteley, United Kingdom | 501-1,000 | Exact match | 87 contacts → |
“Croma Security Solutions Group (CSSG) began in 1970 as a family-run business in Shirley, Southampton, known as County Locksmiths.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Servoca Secure Solutions Limitedservoca-secure.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 85 contacts → |
“At Servoca Secure Solutions, we take great pride in delivering a multi-service security business; offering a range of complementary products and services to both the public and…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Nationwide Securitynsl247.comHQ: St Albans, United KingdomReported employees: 51-200 | St Albans, United Kingdom | 51-200 | Exact match | 81 contacts → |
“Nationwide Security providing both physical and electrical security services throughout the UK.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  ABELabelalarm.co.ukHQ: Leicester, United KingdomReported employees: 51-200 | Leicester, United Kingdom | 51-200 | Exact match | 70 contacts → |
“With over 50 years’ experience in the security industry, Abel has grown to become one of the UK’s largest privately owned providers of electronic security systems.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Northern Security LTDnorthernsecurityltd.co.ukHQ: Carlisle, United KingdomReported employees: 201-500 | Carlisle, United Kingdom | 201-500 | Exact match | 69 contacts → |
“Northern Security Ltd is a leading guarding, alarm response and electronic security business operating throughout the North of England and South West Scotland.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  CLD Physical Security Systemscld-systems.comHQ: Sandbach, United KingdomReported employees: 51-200 | Sandbach, United Kingdom | 51-200 | Exact match | 64 contacts → |
“We are a globally recognised leader in design-led physical security solutions.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  United Guarding Services LTDunitedguarding.co.ukHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 64 contacts → |
“United Guarding Services has been a trusted name in the security industry for over 30 years, providing high-performance security solutions for prestigious premises in London and…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  City Security Services Part Of City Group Securitycitysecurity.org.ukHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 64 contacts → |
“City Security Services (CSS) have more than 25 years’ experience within the corporate security, public sector, education and social housing markets delivering manned guarding…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  WLSwestlondonsecurity.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 61 contacts → |
“WLS (West London Security) has been providing security and solutions to London's homes and businesses for over 40 years.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Sentinel Group Securitysgs-ltd.comHQ: Loughton, United KingdomReported employees: 201-500 | Loughton, United Kingdom | 201-500 | Exact match | 60 contacts → |
“Sentinel Group Security is a fast growing provider of all aspects of security personnel and manned security services operating across the United Kingdom.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Black Diamond Securityblackdiamondsecurity.co.ukHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 58 contacts → |
“Black Diamond Security - Safeguarding Your World.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Shield Security Services LTDshieldsecurity.co.ukHQ: Aldershot, United KingdomReported employees: 51-200 | Aldershot, United Kingdom | 51-200 | Exact match | 53 contacts → |
“Shield Security Services Limited was incorporated in 1986.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,661 company matches
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Physical security companies: dataset insights
September 5, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
1,639 records in the displayed employee bands.
22 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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 5, 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 ↗
Physical security companies by metro
Questions about this company list
What does Exact match mean for physical security 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 physical security companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 1,661 matching company records, 18,135 tracked contacts and 2,944 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 5, 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
Physical security companies by geography
- Physical security companies based in the United States
- Physical security companies based in Brazil
- Physical security companies based in France
- Physical security companies based in Canada
- Physical security companies based in Germany
- Physical security companies based in Australia
- Physical security companies based in the Netherlands
- Physical security companies based in Italy
- Physical security companies based in South Africa
- Physical security companies based in Spain
- Physical security companies based in Mexico
- Physical security companies based in Argentina
Cite this list
RevenueBase Data Team. Top 25 physical security companies based in the United Kingdom. Snapshot: September 5, 2026. https://revenuebase.ai/companies/physical-security-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
- Physical security companies based in the United States
- Physical security companies based in Brazil
- Physical security companies based in France
- Physical security companies based in Canada
- Physical security companies based in Germany
- Physical security companies based in Australia
Company intelligence · public preview
Top 25 physical security companies based in the United Kingdom
RevenueBase records 1,661 matching company records for physical security companies based in the United Kingdom, with 18,135 tracked contacts and 2,944 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 5, 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 physical security 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 | CIS Security Limitedcis-security.co.uk HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 919 contacts → |
“CIS Security is an independent security company equipped to help customers to solve the complex challenges in today’s digital, connected and regulated business world.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Securigroupsecurigroup.co.uk HQ: United KingdomReported employees: 1,001-5,000 | United Kingdom | 1,001-5,000 | Exact match | 765 contacts → |
“Ranked in the top 1% of UK security companies, as approved by the Security Industry Authority, SecuriGroup is an award-winning security company, specialising in the provision of…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Marlowe Fire & Securitymitiefireandsecurity.com HQ: Manchester, United KingdomReported employees: 501-1,000 | Manchester, United Kingdom | 501-1,000 | Exact match | 389 contacts → |
“Mitie Fire & Security is part of Mitie, the UK’s leading facilities management and professional services company, delivering integrated fire and security solutions that protect…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Regency Securityregencysecurity.co.uk HQ: Braintree, United KingdomReported employees: 1,001-5,000 | Braintree, United Kingdom | 1,001-5,000 | Exact match | 326 contacts → |
“Established in 1993, with commitment to our customers and staff alongside a strong ethos and standards driven approach, Regency Security is now the largest provider of door…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Interrinterr.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 232 contacts → |
“Established in 1994, Interr is a specialist agency providing intelligent guarding, reception, remote monitoring & response and front of house solutions within the retail, hotel…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Trigion Security Services LTDtrigion.co.uk HQ: Sidcup, United KingdomReported employees: 201-500 | Sidcup, United Kingdom | 201-500 | Exact match | 166 contacts → |
“Trigion Security Services is the UK provider of Security Guarding and Technical Solutions for Facilicom UK.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | The Keyholding Companykeyholding.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 137 contacts → |
“The Keyholding Company are a tech-enabled mobile security services company, specialising in alarm response, mobile patrols, locks and unlocks, emergency and temporary guarding…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Kingdom Security Serviceskingdom.co.uk HQ: Newton-le-willows, United KingdomReported employees: 5,001-10,000 | Newton-le-willows, United Kingdom | 5,001-10,000 | Exact match | 126 contacts → |
“About Kingdom Security Established in March 1993, Kingdom Security is a leading UK security provider delivering professional, fully licensed security services nationwide.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Total Security Protection LTDtsp.co.uk HQ: Watford, United KingdomReported employees: 51-200 | Watford, United Kingdom | 51-200 | Exact match | 116 contacts → |
“TSP has a reputation for providing enterprise security solutions, as well as excellent system integration standards and exceptional aftercare support, since its founding in 1988.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Bradbury Groupbradbury-group.com HQ: Scunthorpe, United KingdomReported employees: 201-500 | Scunthorpe, United Kingdom | 201-500 | Exact match | 113 contacts → |
“Bradbury Group is the UK’s largest manufacturer of physical security products, including steel doors, grilles and cages.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | City Securitycitysecurityplymouth.co.uk HQ: Plympton, United KingdomReported employees: 51-200 | Plympton, United Kingdom | 51-200 | Exact match | 105 contacts → |
“City Security understands that our staff are the first and last person a patron encounters on their visit to a venue.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Prime Secureprime-secure.co.uk HQ: Glasgow, United KingdomReported employees: 51-200 | Glasgow, United Kingdom | 51-200 | Exact match | 93 contacts → |
“Innovation is at our core.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | K4 Security - K4 Groupk4security.co.uk HQ: Hounslow, United KingdomReported employees: 201-500 | Hounslow, United Kingdom | 201-500 | Exact match | 89 contacts → |
“For a better service and competitive price try K4 Security Services At K4 we offer the following: 1.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Croma Security Solutions Group PLC Cssgcssgplc.com HQ: Whiteley, United KingdomReported employees: 501-1,000 | Whiteley, United Kingdom | 501-1,000 | Exact match | 87 contacts → |
“Croma Security Solutions Group (CSSG) began in 1970 as a family-run business in Shirley, Southampton, known as County Locksmiths.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Servoca Secure Solutions Limitedservoca-secure.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 85 contacts → |
“At Servoca Secure Solutions, we take great pride in delivering a multi-service security business; offering a range of complementary products and services to both the public and…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Nationwide Securitynsl247.com HQ: St Albans, United KingdomReported employees: 51-200 | St Albans, United Kingdom | 51-200 | Exact match | 81 contacts → |
“Nationwide Security providing both physical and electrical security services throughout the UK.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | ABELabelalarm.co.uk HQ: Leicester, United KingdomReported employees: 51-200 | Leicester, United Kingdom | 51-200 | Exact match | 70 contacts → |
“With over 50 years’ experience in the security industry, Abel has grown to become one of the UK’s largest privately owned providers of electronic security systems.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Northern Security LTDnorthernsecurityltd.co.uk HQ: Carlisle, United KingdomReported employees: 201-500 | Carlisle, United Kingdom | 201-500 | Exact match | 69 contacts → |
“Northern Security Ltd is a leading guarding, alarm response and electronic security business operating throughout the North of England and South West Scotland.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | CLD Physical Security Systemscld-systems.com HQ: Sandbach, United KingdomReported employees: 51-200 | Sandbach, United Kingdom | 51-200 | Exact match | 64 contacts → |
“We are a globally recognised leader in design-led physical security solutions.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | United Guarding Services LTDunitedguarding.co.uk HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 64 contacts → |
“United Guarding Services has been a trusted name in the security industry for over 30 years, providing high-performance security solutions for prestigious premises in London and…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | City Security Services Part Of City Group Securitycitysecurity.org.uk HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 64 contacts → |
“City Security Services (CSS) have more than 25 years’ experience within the corporate security, public sector, education and social housing markets delivering manned guarding…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | WLSwestlondonsecurity.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 61 contacts → |
“WLS (West London Security) has been providing security and solutions to London's homes and businesses for over 40 years.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Sentinel Group Securitysgs-ltd.com HQ: Loughton, United KingdomReported employees: 201-500 | Loughton, United Kingdom | 201-500 | Exact match | 60 contacts → |
“Sentinel Group Security is a fast growing provider of all aspects of security personnel and manned security services operating across the United Kingdom.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Black Diamond Securityblackdiamondsecurity.co.uk HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 58 contacts → |
“Black Diamond Security - Safeguarding Your World.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Shield Security Services LTDshieldsecurity.co.uk HQ: Aldershot, United KingdomReported employees: 51-200 | Aldershot, United Kingdom | 51-200 | Exact match | 53 contacts → |
“Shield Security Services Limited was incorporated in 1986.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,661 company matches
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Physical security companies: dataset insights
September 5, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
1,639 records in the displayed employee bands.
22 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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 5, 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 ↗
Physical security companies by metro
Questions about this company list
What does Exact match mean for physical security 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 physical security companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 1,661 matching company records, 18,135 tracked contacts and 2,944 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 5, 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 physical security companies based in the United Kingdom. Snapshot: September 5, 2026. https://revenuebase.ai/companies/physical-security-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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