Company lists · Data refreshed September 2026
Top 25 Security integration firms based in the United Kingdom
RevenueBase identified 2,848 company matches for security integration firms associated with the United Kingdom as of September 2026 and tracks 121,963 professional contacts across them, including 11,863 with verified work emails. London is the largest hub.
This list covers company matches for security integration firms associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 29, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest security integration firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 79,699 contacts → | ||||
Exact match “G4S is a leading security and facility services company that provides proactive security services and cutting-edge smart technology to deliver tailored, integrated security…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 2 | 6,169 contacts → | ||||
Exact match “Making the world a safer place.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 3 | 1,508 contacts → | ||||
Exact match “We are an intelligence-led security business.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 4 | 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 29, 2026 · View company records in RevenueBase | |||||
| 5 | 852 contacts → | ||||
Exact match “VSG are one of the UK's leading security solutions providers with a heritage in manned guarding.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 6 | 847 contacts → | ||||
Exact match “Corps Security - experts in security with social value Built on over 165 years of experience, Corps provides specialist security services, across the UK, to ensure the safety of…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 7 | 502 contacts → | ||||
Exact match “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 8 | 493 contacts → | ||||
Exact match “Through our team of over 900 creative individuals, we've positioned ourselves as a respected force as a life safety systems integrator.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 9 | 419 contacts → | ||||
Exact match “Ward is an award winning, privately owned business, providing bespoke risk and security solutions including protective security personnel, explosive search dogs, narcotic search…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 10 | 393 contacts → | ||||
Exact match “At Global Security Ltd, we are proud to be one of the UK’s trusted suppliers of CCTV, intruder alarms, access control, and fire safety systems.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 11 | 392 contacts → | ||||
Exact match “SSGC is a leading innovator in the Manned Guarding industry, specialising in the application of new technology to improve the performance of its Management team, deployed staff…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 12 | 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 29, 2026 · View company records in RevenueBase | |||||
| 13 | 386 contacts → | ||||
Exact match “Trinity’s mission statement is simple - to provide high quality design, installation, commissioning and long term after care of Fire Detection, Fire Suppression, Life Safety and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 14 | 358 contacts → | ||||
Exact match “ASEL design, develop and deliver fully bespoke and integrated security solutions, seamlessly bringing together people, technology and processes to achieve results-driven outcomes.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 15 | 341 contacts → | ||||
Exact match “We deliver complex fire protection and security solutions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 16 | 326 contacts → | ||||
Exact match “Kings Secure Technologies (KST) is a high-end, enterprise-level systems integrator.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 17 | 200 contacts → | ||||
Exact match “Founded in 1996 we have grown into one of the UK and Ireland’s leading qualified and accredited security and fire systems integrators, working across Europe to bring together…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 18 | 200 contacts → | ||||
Exact match “OpenView Security Solutions is the UK’S largest privately owned independent security company and provides unique, innovative and technologically excellent solutions to meet…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 19 | 195 contacts → | ||||
Exact match “Surefire Business Protection No matter the sector you work in, or where you’re located in the UK, we can help you to make sure that fire and security problems are not things you…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 20 | 180 contacts → | ||||
Exact match “Established in 1978, Bridgegate Security is proud to be one of the UK’s largest independent security contractors.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 21 | 175 contacts → | ||||
Exact match “We are able to supply a one stop security service for all types of security requirement.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 22 | 170 contacts → | ||||
Exact match “Looking after the things people care about, wherever they are’.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 23 | 166 contacts → | ||||
Exact match “We are GUK.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 24 | 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 29, 2026 · View company records in RevenueBase | |||||
| 25 | 162 contacts → | ||||
Exact match “One of the largest independent security companies in the UK.” Recorded in the RevenueBase company graph · Sep 29, 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 “security integration firms”. 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 2,848 security integration firms based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 11,863 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Security integration firms based in the United Kingdom at a glance
As of Sep 29, 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 2,848 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United Kingdom whose business descriptions match “security integration firms” 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 11,863 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 29, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Security integration firms by metro
- Security integration firms in London498
- Security integration firms in Manchester58
- Security integration firms in Birmingham45
- Security integration firms in Glasgow33
- Security integration firms in Leeds33
- Security integration firms in Bristol28
- Security integration firms in Leicester26
- Security integration firms in Nottingham26
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “security integration firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many security integration firms are there based in the United Kingdom?
RevenueBase identified 2,848 company matches for security integration firms 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?
G4s tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most security integration firms?
London leads with 498 company records, followed by Manchester (58) and Birmingham (45).
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 11,863 professional contacts with verified work emails tracked across these 2,848 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.
Ready to reach these companies? Verified emails and direct dials for all 2,848 security integration firms based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Security integration firms by geography
- Security integration firms based in Buenos Aires, Argentina
- Security integration firms based in Brisbane, Australia
- Security integration firms based in Melbourne, Australia
- Security integration firms based in Sydney, Australia
- Security integration firms based in Belo Horizonte, Brazil
- Security integration firms based in Campinas, Brazil
- Security integration firms based in Curitiba, Brazil
- Security integration firms based in Porto Alegre, Brazil
- Security integration firms based in Rio De Janeiro, Brazil
- Security integration firms based in Sao Paulo, Brazil
- Security integration firms based in Calgary, Canada
- Security integration firms based in Edmonton, Canada
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
- Security integration firms based in Buenos Aires, Argentina
- Security integration firms based in Brisbane, Australia
- Security integration firms based in Melbourne, Australia
- Security integration firms based in Sydney, Australia
- Security integration firms based in Belo Horizonte, Brazil
- Security integration firms based in Campinas, Brazil
Company intelligence · public preview
Top 25 security integration firms 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 2,848 matching company records for security integration firms based in the United Kingdom, with 121,963 tracked contacts and 11,863 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 29, 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 security integration firms 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 |  G4sg4s.comHQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 79,699 contacts → |
“G4S is a leading security and facility services company that provides proactive security services and cutting-edge smart technology to deliver tailored, integrated security…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Chubb Fire & Securitychubbfs.comHQ: Staines, United KingdomReported employees: 10001+ | Staines, United Kingdom | 10001+ | Exact match | 6,169 contacts → |
“Making the world a safer place.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Mitie Securitymitie.comHQ: Northampton, United KingdomReported employees: 10001+ | Northampton, United Kingdom | 10001+ | Exact match | 1,508 contacts → |
“We are an intelligence-led security business.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  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 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  VSG Vision Security Groupvsg.co.ukHQ: Northampton, United KingdomReported employees: 5,001-10,000 | Northampton, United Kingdom | 5,001-10,000 | Exact match | 852 contacts → |
“VSG are one of the UK's leading security solutions providers with a heritage in manned guarding.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Corps Securitycorpssecurity.co.ukHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 847 contacts → |
“Corps Security - experts in security with social value Built on over 165 years of experience, Corps provides specialist security services, across the UK, to ensure the safety of…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Securityhqsecurityhq.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 502 contacts → |
“SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Protec Fire And Security Groupprotec.co.ukHQ: Nelson, United KingdomReported employees: 501-1,000 | Nelson, United Kingdom | 501-1,000 | Exact match | 493 contacts → |
“Through our team of over 900 creative individuals, we've positioned ourselves as a respected force as a life safety systems integrator.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Ward Securityward-security.co.ukHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 419 contacts → |
“Ward is an award winning, privately owned business, providing bespoke risk and security solutions including protective security personnel, explosive search dogs, narcotic search…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Global Securitycctv-alarms.co.ukHQ: Blackburn, United KingdomReported employees: Not recorded | Blackburn, United Kingdom | Not recorded | Exact match | 393 contacts → |
“At Global Security Ltd, we are proud to be one of the UK’s trusted suppliers of CCTV, intruder alarms, access control, and fire safety systems.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Ssgc LTDssgc-net.comHQ: Swindon, United KingdomReported employees: 501-1,000 | Swindon, United Kingdom | 501-1,000 | Exact match | 392 contacts → |
“SSGC is a leading innovator in the Manned Guarding industry, specialising in the application of new technology to improve the performance of its Management team, deployed staff…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  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 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Trinity Fire & Security Systemstrinityfireandsecurity.comHQ: Exeter, United KingdomReported employees: 501-1,000 | Exeter, United Kingdom | 501-1,000 | Exact match | 386 contacts → |
“Trinity’s mission statement is simple - to provide high quality design, installation, commissioning and long term after care of Fire Detection, Fire Suppression, Life Safety and…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 358 contacts → |
“ASEL design, develop and deliver fully bespoke and integrated security solutions, seamlessly bringing together people, technology and processes to achieve results-driven outcomes.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Hall & KAYhkfire.co.ukHQ: Ascot / Birmingham / Manchester / Glasgow, United KingdomReported employees: 201-500 | Ascot / Birmingham / Manchester / Glasgow, United Kingdom | 201-500 | Exact match | 341 contacts → |
“We deliver complex fire protection and security solutions.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Kings Secure Technologieskingsltd.co.ukHQ: Bradford, United KingdomReported employees: 501-1,000 | Bradford, United Kingdom | 501-1,000 | Exact match | 326 contacts → |
“Kings Secure Technologies (KST) is a high-end, enterprise-level systems integrator.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Evolution Electronic Security Systems LTDevolutionsecurity.comHQ: Marlow, United KingdomReported employees: 201-500 | Marlow, United Kingdom | 201-500 | Exact match | 200 contacts → |
“Founded in 1996 we have grown into one of the UK and Ireland’s leading qualified and accredited security and fire systems integrators, working across Europe to bring together…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Openview Security Solutions Limitedopenviewgroup.comHQ: Romford, United KingdomReported employees: 201-500 | Romford, United Kingdom | 201-500 | Exact match | 200 contacts → |
“OpenView Security Solutions is the UK’S largest privately owned independent security company and provides unique, innovative and technologically excellent solutions to meet…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Abca Fire And Securityabcasystems.co.ukHQ: Newcastle Upon Tyne, United KingdomReported employees: 201-500 | Newcastle Upon Tyne, United Kingdom | 201-500 | Exact match | 195 contacts → |
“Surefire Business Protection No matter the sector you work in, or where you’re located in the UK, we can help you to make sure that fire and security problems are not things you…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Bridgegate Security UK Limitedbridgegate-security.co.ukHQ: Leeds, United KingdomReported employees: 1,001-5,000 | Leeds, United Kingdom | 1,001-5,000 | Exact match | 180 contacts → |
“Established in 1978, Bridgegate Security is proud to be one of the UK’s largest independent security contractors.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Unitrust Protection Servicesunitrust.co.ukHQ: Middx, United KingdomReported employees: 201-500 | Middx, United Kingdom | 201-500 | Exact match | 175 contacts → |
“We are able to supply a one stop security service for all types of security requirement.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Texecom LTDtexe.comHQ: Haslingden, United KingdomReported employees: 201-500 | Haslingden, United Kingdom | 201-500 | Exact match | 170 contacts → |
“Looking after the things people care about, wherever they are’.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Guarding UKguk.co.ukHQ: Enfield, United KingdomReported employees: 501-1,000 | Enfield, United Kingdom | 501-1,000 | Exact match | 166 contacts → |
“We are GUK.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  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 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Elite Security Groupelitesecuritygroup.co.ukHQ: Swindon, United KingdomReported employees: 51-200 | Swindon, United Kingdom | 51-200 | Exact match | 162 contacts → |
“One of the largest independent security companies in the UK.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,848 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Security integration firms: dataset insights
September 29, 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
2,820 records in the displayed employee bands.
28 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 2,848 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 29, 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 ↗
Security integration firms by metro
- Security integration firms in London498
- Security integration firms in Manchester58
- Security integration firms in Birmingham45
- Security integration firms in Glasgow33
- Security integration firms in Leeds33
- Security integration firms in Bristol28
- Security integration firms in Leicester26
- Security integration firms in Nottingham26
Questions about this company list
What does Exact match mean for security integration firms?
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 security integration firms did RevenueBase find based in the United Kingdom?
The saved snapshot records 2,848 matching company records, 121,963 tracked contacts and 11,863 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 29, 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
Security integration firms by geography
- Security integration firms based in Buenos Aires, Argentina
- Security integration firms based in Brisbane, Australia
- Security integration firms based in Melbourne, Australia
- Security integration firms based in Sydney, Australia
- Security integration firms based in Belo Horizonte, Brazil
- Security integration firms based in Campinas, Brazil
- Security integration firms based in Curitiba, Brazil
- Security integration firms based in Porto Alegre, Brazil
- Security integration firms based in Rio De Janeiro, Brazil
- Security integration firms based in Sao Paulo, Brazil
- Security integration firms based in Calgary, Canada
- Security integration firms based in Edmonton, Canada
Cite this list
RevenueBase Data Team. Top 25 security integration firms based in the United Kingdom. Snapshot: September 29, 2026. https://revenuebase.ai/companies/security-integration-firms/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
- Security integration firms based in Buenos Aires, Argentina
- Security integration firms based in Brisbane, Australia
- Security integration firms based in Melbourne, Australia
- Security integration firms based in Sydney, Australia
- Security integration firms based in Belo Horizonte, Brazil
- Security integration firms based in Campinas, Brazil
Company intelligence · public preview
Top 25 security integration firms based in the United Kingdom
RevenueBase records 2,848 matching company records for security integration firms based in the United Kingdom, with 121,963 tracked contacts and 11,863 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 29, 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 security integration firms 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 | G4sg4s.com HQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 79,699 contacts → |
“G4S is a leading security and facility services company that provides proactive security services and cutting-edge smart technology to deliver tailored, integrated security…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Chubb Fire & Securitychubbfs.com HQ: Staines, United KingdomReported employees: 10001+ | Staines, United Kingdom | 10001+ | Exact match | 6,169 contacts → |
“Making the world a safer place.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Mitie Securitymitie.com HQ: Northampton, United KingdomReported employees: 10001+ | Northampton, United Kingdom | 10001+ | Exact match | 1,508 contacts → |
“We are an intelligence-led security business.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | 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 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | VSG Vision Security Groupvsg.co.uk HQ: Northampton, United KingdomReported employees: 5,001-10,000 | Northampton, United Kingdom | 5,001-10,000 | Exact match | 852 contacts → |
“VSG are one of the UK's leading security solutions providers with a heritage in manned guarding.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Corps Securitycorpssecurity.co.uk HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 847 contacts → |
“Corps Security - experts in security with social value Built on over 165 years of experience, Corps provides specialist security services, across the UK, to ensure the safety of…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Securityhqsecurityhq.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 502 contacts → |
“SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Protec Fire And Security Groupprotec.co.uk HQ: Nelson, United KingdomReported employees: 501-1,000 | Nelson, United Kingdom | 501-1,000 | Exact match | 493 contacts → |
“Through our team of over 900 creative individuals, we've positioned ourselves as a respected force as a life safety systems integrator.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Ward Securityward-security.co.uk HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 419 contacts → |
“Ward is an award winning, privately owned business, providing bespoke risk and security solutions including protective security personnel, explosive search dogs, narcotic search…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Global Securitycctv-alarms.co.uk HQ: Blackburn, United KingdomReported employees: Not recorded | Blackburn, United Kingdom | Not recorded | Exact match | 393 contacts → |
“At Global Security Ltd, we are proud to be one of the UK’s trusted suppliers of CCTV, intruder alarms, access control, and fire safety systems.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Ssgc LTDssgc-net.com HQ: Swindon, United KingdomReported employees: 501-1,000 | Swindon, United Kingdom | 501-1,000 | Exact match | 392 contacts → |
“SSGC is a leading innovator in the Manned Guarding industry, specialising in the application of new technology to improve the performance of its Management team, deployed staff…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 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 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Trinity Fire & Security Systemstrinityfireandsecurity.com HQ: Exeter, United KingdomReported employees: 501-1,000 | Exeter, United Kingdom | 501-1,000 | Exact match | 386 contacts → |
“Trinity’s mission statement is simple - to provide high quality design, installation, commissioning and long term after care of Fire Detection, Fire Suppression, Life Safety and…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 358 contacts → |
“ASEL design, develop and deliver fully bespoke and integrated security solutions, seamlessly bringing together people, technology and processes to achieve results-driven outcomes.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Hall & KAYhkfire.co.uk HQ: Ascot / Birmingham / Manchester / Glasgow, United KingdomReported employees: 201-500 | Ascot / Birmingham / Manchester / Glasgow, United Kingdom | 201-500 | Exact match | 341 contacts → |
“We deliver complex fire protection and security solutions.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Kings Secure Technologieskingsltd.co.uk HQ: Bradford, United KingdomReported employees: 501-1,000 | Bradford, United Kingdom | 501-1,000 | Exact match | 326 contacts → |
“Kings Secure Technologies (KST) is a high-end, enterprise-level systems integrator.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Evolution Electronic Security Systems LTDevolutionsecurity.com HQ: Marlow, United KingdomReported employees: 201-500 | Marlow, United Kingdom | 201-500 | Exact match | 200 contacts → |
“Founded in 1996 we have grown into one of the UK and Ireland’s leading qualified and accredited security and fire systems integrators, working across Europe to bring together…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Openview Security Solutions Limitedopenviewgroup.com HQ: Romford, United KingdomReported employees: 201-500 | Romford, United Kingdom | 201-500 | Exact match | 200 contacts → |
“OpenView Security Solutions is the UK’S largest privately owned independent security company and provides unique, innovative and technologically excellent solutions to meet…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Abca Fire And Securityabcasystems.co.uk HQ: Newcastle Upon Tyne, United KingdomReported employees: 201-500 | Newcastle Upon Tyne, United Kingdom | 201-500 | Exact match | 195 contacts → |
“Surefire Business Protection No matter the sector you work in, or where you’re located in the UK, we can help you to make sure that fire and security problems are not things you…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Bridgegate Security UK Limitedbridgegate-security.co.uk HQ: Leeds, United KingdomReported employees: 1,001-5,000 | Leeds, United Kingdom | 1,001-5,000 | Exact match | 180 contacts → |
“Established in 1978, Bridgegate Security is proud to be one of the UK’s largest independent security contractors.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Unitrust Protection Servicesunitrust.co.uk HQ: Middx, United KingdomReported employees: 201-500 | Middx, United Kingdom | 201-500 | Exact match | 175 contacts → |
“We are able to supply a one stop security service for all types of security requirement.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Texecom LTDtexe.com HQ: Haslingden, United KingdomReported employees: 201-500 | Haslingden, United Kingdom | 201-500 | Exact match | 170 contacts → |
“Looking after the things people care about, wherever they are’.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Guarding UKguk.co.uk HQ: Enfield, United KingdomReported employees: 501-1,000 | Enfield, United Kingdom | 501-1,000 | Exact match | 166 contacts → |
“We are GUK.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | 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 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Elite Security Groupelitesecuritygroup.co.uk HQ: Swindon, United KingdomReported employees: 51-200 | Swindon, United Kingdom | 51-200 | Exact match | 162 contacts → |
“One of the largest independent security companies in the UK.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,848 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Security integration firms: dataset insights
September 29, 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
2,820 records in the displayed employee bands.
28 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 2,848 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 29, 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 ↗
Security integration firms by metro
- Security integration firms in London498
- Security integration firms in Manchester58
- Security integration firms in Birmingham45
- Security integration firms in Glasgow33
- Security integration firms in Leeds33
- Security integration firms in Bristol28
- Security integration firms in Leicester26
- Security integration firms in Nottingham26
Questions about this company list
What does Exact match mean for security integration firms?
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 security integration firms did RevenueBase find based in the United Kingdom?
The saved snapshot records 2,848 matching company records, 121,963 tracked contacts and 11,863 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 29, 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
Security integration firms by geography
- Security integration firms based in Buenos Aires, Argentina
- Security integration firms based in Brisbane, Australia
- Security integration firms based in Melbourne, Australia
- Security integration firms based in Sydney, Australia
- Security integration firms based in Belo Horizonte, Brazil
- Security integration firms based in Campinas, Brazil
- Security integration firms based in Curitiba, Brazil
- Security integration firms based in Porto Alegre, Brazil
- Security integration firms based in Rio De Janeiro, Brazil
- Security integration firms based in Sao Paulo, Brazil
- Security integration firms based in Calgary, Canada
- Security integration firms based in Edmonton, Canada
Cite this list
RevenueBase Data Team. Top 25 security integration firms based in the United Kingdom. Snapshot: September 29, 2026. https://revenuebase.ai/companies/security-integration-firms/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
- Security integration firms based in Buenos Aires, Argentina
- Security integration firms based in Brisbane, Australia
- Security integration firms based in Melbourne, Australia
- Security integration firms based in Sydney, Australia
- Security integration firms based in Belo Horizonte, Brazil
- Security integration firms based in Campinas, Brazil