Company lists · Data refreshed November 2026
Top 21 Security systems integrator companies based in the United Kingdom
RevenueBase identified 2,944 company matches for security systems integrator companies associated with the United Kingdom as of November 2026 and tracks 39,116 professional contacts across them, including 12,873 with verified work emails. London is the largest hub.
This list covers company matches for security systems integrator 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 November 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 21 largest security systems integrator companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,705 contacts → | ||||
Exact match “Making the world a safer place.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 2 | 1,667 contacts → | ||||
Exact match “We are an intelligence-led security business.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 3 | 526 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 4 | 426 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 5 | 389 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 6 | 372 contacts → | ||||
Exact match “We deliver complex fire protection and security solutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 7 | 352 contacts → | ||||
Exact match “Kings Secure Technologies (KST) is a high-end, enterprise-level systems integrator.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 8 | 307 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 9 | 223 contacts → | ||||
Exact match “Part of the SCCI Group, SCCI Alphatrack designs, installs, and maintains connected building systems across social housing, commercial property, new builds, and public sector…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 10 | 203 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 11 | 193 contacts → | ||||
Exact match “Looking after the things people care about, wherever they are’.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 12 | 184 contacts → | ||||
Exact match “A premier provider of security products and services across England, Gough & Kelly was formed in 1988 to influence and inspire the security and electrical marketplace by providing…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 13 | 172 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 14 | 171 contacts → | ||||
Exact match “As a member of Mitie Group a leading facilities management and professional services company GBE Converge brings an unparalleled expertise in Fire, Security, and IT systems.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 15 | 169 contacts → | ||||
Exact match “Pointer Limited We are a Specialist Fire and Security Services Integrator.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 16 | 167 contacts → | ||||
Exact match “For 40 years, LMG has delivered secure, resilient and proven digital infrastructure solutions across the built environment.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 17 | 165 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 18 | 164 contacts → | ||||
Exact match “Norbain is a leading UK security distributor, covering video surveillance, access control & intruder detection solutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 19 | 149 contacts → | ||||
Exact match “Frontline Security Solutions is a global electronic security integrator specialising in Access Control, CCTV, Intruder and Intercom systems that protect people, property and…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 20 | 138 contacts → | ||||
Exact match “Reliance High-Tech is the UK's largest independent integrator of security and lone worker solutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 21 | 136 contacts → | ||||
Exact match “Global Fire and Security Systems are market leaders in providing quality product solutions to services through the Fire and Security market place nationwide.” Recorded in the RevenueBase company graph · Nov 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 “security systems integrator 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 21 of 2,944 security systems integrator companies based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 12,873 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Security systems integrator companies based in the United Kingdom at a glance
As of Nov 5, 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 2,944 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 systems integrator 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 12,873 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 November 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.
Security systems integrator companies by metro
- Security systems integrator companies in London336
- Security systems integrator companies in Manchester64
- Security systems integrator companies in Glasgow41
- Security systems integrator companies in Birmingham37
- Security systems integrator companies in Bristol33
- Security systems integrator companies in Leeds32
- Security systems integrator companies in Nottingham31
- Security systems integrator companies in Belfast28
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 systems integrator companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many security systems integrator companies are there based in the United Kingdom?
RevenueBase identified 2,944 company matches for security systems integrator companies associated with the United Kingdom as of November 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?
Chubb Fire & Security tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most security systems integrator companies?
London leads with 336 company records, followed by Manchester (64) and Glasgow (41).
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 12,873 professional contacts with verified work emails tracked across these 2,944 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 November 5, 2026.
Ready to reach these companies? Verified emails and direct dials for all 2,944 security systems integrator companies based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Security systems integrator companies by geography
- Security systems integrator companies based in Buenos Aires, Argentina
- Security systems integrator companies based in Brisbane, Australia
- Security systems integrator companies based in Melbourne, Australia
- Security systems integrator companies based in Perth, Australia
- Security systems integrator companies based in Sydney, Australia
- Security systems integrator companies based in Belo Horizonte, Brazil
- Security systems integrator companies based in Campinas, Brazil
- Security systems integrator companies based in Curitiba, Brazil
- Security systems integrator companies based in Porto Alegre, Brazil
- Security systems integrator companies based in Rio De Janeiro, Brazil
- Security systems integrator companies based in Sao Paulo, Brazil
- Security systems integrator companies based in Sofia, Bulgaria
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 systems integrator companies based in Buenos Aires, Argentina
- Security systems integrator companies based in Brisbane, Australia
- Security systems integrator companies based in Melbourne, Australia
- Security systems integrator companies based in Perth, Australia
- Security systems integrator companies based in Sydney, Australia
- Security systems integrator companies based in Belo Horizonte, Brazil
Company intelligence · public preview
Top 21 security systems integrator 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 2,944 matching company records for security systems integrator companies based in the United Kingdom, with 39,116 tracked contacts and 12,873 verified work emails.
This public preview shows 21 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 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 21 security systems integrator 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 |  Chubb Fire & Securitychubbfs.comHQ: Staines, United KingdomReported employees: 10001+ | Staines, United Kingdom | 10001+ | Exact match | 6,705 contacts → |
“Making the world a safer place.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Mitie Securitymitie.comHQ: Northampton, United KingdomReported employees: 10001+ | Northampton, United Kingdom | 10001+ | Exact match | 1,667 contacts → |
“We are an intelligence-led security business.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Protec Fire And Security Groupprotec.co.ukHQ: Nelson, United KingdomReported employees: 501-1,000 | Nelson, United Kingdom | 501-1,000 | Exact match | 526 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Global Securitycctv-alarms.co.ukHQ: Blackburn, United KingdomReported employees: Not recorded | Blackburn, United Kingdom | Not recorded | Exact match | 426 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Trinity Fire & Security Systemstrinityfireandsecurity.comHQ: Exeter, United KingdomReported employees: 501-1,000 | Exeter, United Kingdom | 501-1,000 | Exact match | 389 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Hall & KAYhkfire.co.ukHQ: Ascot / Birmingham / Manchester / Glasgow, United KingdomReported employees: 201-500 | Ascot / Birmingham / Manchester / Glasgow, United Kingdom | 201-500 | Exact match | 372 contacts → |
“We deliver complex fire protection and security solutions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Kings Secure Technologieskingsltd.co.ukHQ: Bradford, United KingdomReported employees: 501-1,000 | Bradford, United Kingdom | 501-1,000 | Exact match | 352 contacts → |
“Kings Secure Technologies (KST) is a high-end, enterprise-level systems integrator.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Marlowe Fire & Securitymitiefireandsecurity.comHQ: Manchester, United KingdomReported employees: 501-1,000 | Manchester, United Kingdom | 501-1,000 | Exact match | 307 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Scci Alphatracksccialphatrack.co.ukHQ: Harlow, United KingdomReported employees: 201-500 | Harlow, United Kingdom | 201-500 | Exact match | 223 contacts → |
“Part of the SCCI Group, SCCI Alphatrack designs, installs, and maintains connected building systems across social housing, commercial property, new builds, and public sector…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Openview Security Solutions Limitedopenviewgroup.comHQ: Romford, United KingdomReported employees: 201-500 | Romford, United Kingdom | 201-500 | Exact match | 203 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Texecom LTDtexe.comHQ: Haslingden, United KingdomReported employees: 201-500 | Haslingden, United Kingdom | 201-500 | Exact match | 193 contacts → |
“Looking after the things people care about, wherever they are’.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Gough & Kellygough-kelly.co.ukHQ: Leeds, United KingdomReported employees: 51-200 | Leeds, United Kingdom | 51-200 | Exact match | 184 contacts → |
“A premier provider of security products and services across England, Gough & Kelly was formed in 1988 to influence and inspire the security and electrical marketplace by providing…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Trigion Security Services LTDtrigion.co.ukHQ: Sidcup, United KingdomReported employees: 201-500 | Sidcup, United Kingdom | 201-500 | Exact match | 172 contacts → |
“Trigion Security Services is the UK provider of Security Guarding and Technical Solutions for Facilicom UK.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  GBE Converge Part Of Mitiegbeconverge.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 171 contacts → |
“As a member of Mitie Group a leading facilities management and professional services company GBE Converge brings an unparalleled expertise in Fire, Security, and IT systems.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Pointer LTDpointer.co.ukHQ: Glasgow, United KingdomReported employees: 51-200 | Glasgow, United Kingdom | 51-200 | Exact match | 169 contacts → |
“Pointer Limited We are a Specialist Fire and Security Services Integrator.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  LMG Lmgiq.comlmgiq.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 167 contacts → |
“For 40 years, LMG has delivered secure, resilient and proven digital infrastructure solutions across the built environment.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  The Keyholding Companykeyholding.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 165 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Norbain SDnorbain.comHQ: Bracknell, United KingdomReported employees: 51-200 | Bracknell, United Kingdom | 51-200 | Exact match | 164 contacts → |
“Norbain is a leading UK security distributor, covering video surveillance, access control & intruder detection solutions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Frontline Security Solutionsfrontlinefs.comHQ: Chalfont St Peter, United KingdomReported employees: 51-200 | Chalfont St Peter, United Kingdom | 51-200 | Exact match | 149 contacts → |
“Frontline Security Solutions is a global electronic security integrator specialising in Access Control, CCTV, Intruder and Intercom systems that protect people, property and…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Reliance High-Techreliancehightech.co.ukHQ: Bracknell, United KingdomReported employees: 51-200 | Bracknell, United Kingdom | 51-200 | Exact match | 138 contacts → |
“Reliance High-Tech is the UK's largest independent integrator of security and lone worker solutions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Global Fire & Security Systemsglobalfireandsecurity.co.ukHQ: Nottingham, United KingdomReported employees: 51-200 | Nottingham, United Kingdom | 51-200 | Exact match | 136 contacts → |
“Global Fire and Security Systems are market leaders in providing quality product solutions to services through the Fire and Security market place nationwide.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 21 of 2,944 company matches
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Security systems integrator companies: dataset insights
November 5, 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
2,826 records in the displayed employee bands.
118 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 2,944 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: November 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 ↗
Security systems integrator companies by metro
- Security systems integrator companies in London336
- Security systems integrator companies in Manchester64
- Security systems integrator companies in Glasgow41
- Security systems integrator companies in Birmingham37
- Security systems integrator companies in Bristol33
- Security systems integrator companies in Leeds32
- Security systems integrator companies in Nottingham31
- Security systems integrator companies in Belfast28
Questions about this company list
What does Exact match mean for security systems integrator 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 security systems integrator companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 2,944 matching company records, 39,116 tracked contacts and 12,873 verified emails. The public preview displays 21 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: November 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
Security systems integrator companies by geography
- Security systems integrator companies based in Buenos Aires, Argentina
- Security systems integrator companies based in Brisbane, Australia
- Security systems integrator companies based in Melbourne, Australia
- Security systems integrator companies based in Perth, Australia
- Security systems integrator companies based in Sydney, Australia
- Security systems integrator companies based in Belo Horizonte, Brazil
- Security systems integrator companies based in Campinas, Brazil
- Security systems integrator companies based in Curitiba, Brazil
- Security systems integrator companies based in Porto Alegre, Brazil
- Security systems integrator companies based in Rio De Janeiro, Brazil
- Security systems integrator companies based in Sao Paulo, Brazil
- Security systems integrator companies based in Sofia, Bulgaria
Cite this list
RevenueBase Data Team. Top 21 security systems integrator companies based in the United Kingdom. Snapshot: November 5, 2026. https://revenuebase.ai/companies/security-systems-integrator-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
- Security systems integrator companies based in Buenos Aires, Argentina
- Security systems integrator companies based in Brisbane, Australia
- Security systems integrator companies based in Melbourne, Australia
- Security systems integrator companies based in Perth, Australia
- Security systems integrator companies based in Sydney, Australia
- Security systems integrator companies based in Belo Horizonte, Brazil
Company intelligence · public preview
Top 21 security systems integrator companies based in the United Kingdom
RevenueBase records 2,944 matching company records for security systems integrator companies based in the United Kingdom, with 39,116 tracked contacts and 12,873 verified work emails.
This public preview shows 21 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 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 21 security systems integrator 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 | Chubb Fire & Securitychubbfs.com HQ: Staines, United KingdomReported employees: 10001+ | Staines, United Kingdom | 10001+ | Exact match | 6,705 contacts → |
“Making the world a safer place.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Mitie Securitymitie.com HQ: Northampton, United KingdomReported employees: 10001+ | Northampton, United Kingdom | 10001+ | Exact match | 1,667 contacts → |
“We are an intelligence-led security business.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Protec Fire And Security Groupprotec.co.uk HQ: Nelson, United KingdomReported employees: 501-1,000 | Nelson, United Kingdom | 501-1,000 | Exact match | 526 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Global Securitycctv-alarms.co.uk HQ: Blackburn, United KingdomReported employees: Not recorded | Blackburn, United Kingdom | Not recorded | Exact match | 426 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Trinity Fire & Security Systemstrinityfireandsecurity.com HQ: Exeter, United KingdomReported employees: 501-1,000 | Exeter, United Kingdom | 501-1,000 | Exact match | 389 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Hall & KAYhkfire.co.uk HQ: Ascot / Birmingham / Manchester / Glasgow, United KingdomReported employees: 201-500 | Ascot / Birmingham / Manchester / Glasgow, United Kingdom | 201-500 | Exact match | 372 contacts → |
“We deliver complex fire protection and security solutions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Kings Secure Technologieskingsltd.co.uk HQ: Bradford, United KingdomReported employees: 501-1,000 | Bradford, United Kingdom | 501-1,000 | Exact match | 352 contacts → |
“Kings Secure Technologies (KST) is a high-end, enterprise-level systems integrator.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Marlowe Fire & Securitymitiefireandsecurity.com HQ: Manchester, United KingdomReported employees: 501-1,000 | Manchester, United Kingdom | 501-1,000 | Exact match | 307 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Scci Alphatracksccialphatrack.co.uk HQ: Harlow, United KingdomReported employees: 201-500 | Harlow, United Kingdom | 201-500 | Exact match | 223 contacts → |
“Part of the SCCI Group, SCCI Alphatrack designs, installs, and maintains connected building systems across social housing, commercial property, new builds, and public sector…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Openview Security Solutions Limitedopenviewgroup.com HQ: Romford, United KingdomReported employees: 201-500 | Romford, United Kingdom | 201-500 | Exact match | 203 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Texecom LTDtexe.com HQ: Haslingden, United KingdomReported employees: 201-500 | Haslingden, United Kingdom | 201-500 | Exact match | 193 contacts → |
“Looking after the things people care about, wherever they are’.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Gough & Kellygough-kelly.co.uk HQ: Leeds, United KingdomReported employees: 51-200 | Leeds, United Kingdom | 51-200 | Exact match | 184 contacts → |
“A premier provider of security products and services across England, Gough & Kelly was formed in 1988 to influence and inspire the security and electrical marketplace by providing…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Trigion Security Services LTDtrigion.co.uk HQ: Sidcup, United KingdomReported employees: 201-500 | Sidcup, United Kingdom | 201-500 | Exact match | 172 contacts → |
“Trigion Security Services is the UK provider of Security Guarding and Technical Solutions for Facilicom UK.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | GBE Converge Part Of Mitiegbeconverge.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 171 contacts → |
“As a member of Mitie Group a leading facilities management and professional services company GBE Converge brings an unparalleled expertise in Fire, Security, and IT systems.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Pointer LTDpointer.co.uk HQ: Glasgow, United KingdomReported employees: 51-200 | Glasgow, United Kingdom | 51-200 | Exact match | 169 contacts → |
“Pointer Limited We are a Specialist Fire and Security Services Integrator.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | LMG Lmgiq.comlmgiq.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 167 contacts → |
“For 40 years, LMG has delivered secure, resilient and proven digital infrastructure solutions across the built environment.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | The Keyholding Companykeyholding.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 165 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Norbain SDnorbain.com HQ: Bracknell, United KingdomReported employees: 51-200 | Bracknell, United Kingdom | 51-200 | Exact match | 164 contacts → |
“Norbain is a leading UK security distributor, covering video surveillance, access control & intruder detection solutions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Frontline Security Solutionsfrontlinefs.com HQ: Chalfont St Peter, United KingdomReported employees: 51-200 | Chalfont St Peter, United Kingdom | 51-200 | Exact match | 149 contacts → |
“Frontline Security Solutions is a global electronic security integrator specialising in Access Control, CCTV, Intruder and Intercom systems that protect people, property and…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Reliance High-Techreliancehightech.co.uk HQ: Bracknell, United KingdomReported employees: 51-200 | Bracknell, United Kingdom | 51-200 | Exact match | 138 contacts → |
“Reliance High-Tech is the UK's largest independent integrator of security and lone worker solutions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Global Fire & Security Systemsglobalfireandsecurity.co.uk HQ: Nottingham, United KingdomReported employees: 51-200 | Nottingham, United Kingdom | 51-200 | Exact match | 136 contacts → |
“Global Fire and Security Systems are market leaders in providing quality product solutions to services through the Fire and Security market place nationwide.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Security systems integrator companies: dataset insights
November 5, 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
2,826 records in the displayed employee bands.
118 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 2,944 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: November 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 ↗
Security systems integrator companies by metro
- Security systems integrator companies in London336
- Security systems integrator companies in Manchester64
- Security systems integrator companies in Glasgow41
- Security systems integrator companies in Birmingham37
- Security systems integrator companies in Bristol33
- Security systems integrator companies in Leeds32
- Security systems integrator companies in Nottingham31
- Security systems integrator companies in Belfast28
Questions about this company list
What does Exact match mean for security systems integrator 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 security systems integrator companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 2,944 matching company records, 39,116 tracked contacts and 12,873 verified emails. The public preview displays 21 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: November 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
Security systems integrator companies by geography
- Security systems integrator companies based in Buenos Aires, Argentina
- Security systems integrator companies based in Brisbane, Australia
- Security systems integrator companies based in Melbourne, Australia
- Security systems integrator companies based in Perth, Australia
- Security systems integrator companies based in Sydney, Australia
- Security systems integrator companies based in Belo Horizonte, Brazil
- Security systems integrator companies based in Campinas, Brazil
- Security systems integrator companies based in Curitiba, Brazil
- Security systems integrator companies based in Porto Alegre, Brazil
- Security systems integrator companies based in Rio De Janeiro, Brazil
- Security systems integrator companies based in Sao Paulo, Brazil
- Security systems integrator companies based in Sofia, Bulgaria
Cite this list
RevenueBase Data Team. Top 21 security systems integrator companies based in the United Kingdom. Snapshot: November 5, 2026. https://revenuebase.ai/companies/security-systems-integrator-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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- Security systems integrator companies based in Buenos Aires, Argentina
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