Company lists · Data refreshed September 2026
Top 25 Monitoring companies based in the United Kingdom
RevenueBase identified 135 company matches for monitoring companies associated with the United Kingdom as of September 2026 and tracks 1,208 professional contacts across them, including 270 with verified work emails. London is the largest hub.
This list covers company matches for monitoring companies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest monitoring companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 183 contacts → | ||||
Exact match “Allied Universal® Electronic Monitoring is the industry leading technology and service company, offering law enforcement and government agencies the widest variety of cutting-edge…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 68 contacts → | ||||
Exact match “is a security and facilities management business with over 25 years’ experience in monitoring, checking and delivering contractor performance for clients.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 50 contacts → | ||||
Exact match “A global security monitoring brand with sister companies in Holland, Belgium and Australia, we recognise that monitoring is an integral part of your business.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 47 contacts → | ||||
Exact match “We develop monitoring tools that make the Internet a safer place for hundreds of international brands.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 36 contacts → | ||||
Exact match “Based in Huddersfield, West Yorkshire.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 29 contacts → | ||||
Exact match “Farsight Security Services is a market-leading provider of remote monitoring and ARC services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 24 contacts → | ||||
Exact match “Nortech supply specialist monitoring technology products and services to utilities, generators and system integrators.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 21 contacts → | ||||
Exact match “Specialist CCTV Monitoring and Alarm Monitoring solutions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 18 contacts → | ||||
Exact match “For Fire, Alarm & CCTV Installation companies who need reliable monitoring solutions for their clients, Fenix is a completely NEW type of alarm management partnership.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 16 contacts → | ||||
Exact match “For those who are new to us, here’s Oracle Vision in a nut shell.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 14 contacts → | ||||
Exact match “Care Protect are dedicated to improving standards of care quality and safety by giving reassurance through greater transparency.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 14 contacts → | ||||
Exact match “Security Services Provider specialising in Remote Monitoring; Installations and Maintenance of CCTV, Fire and Intruder Alarms, Access Controls.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 13 contacts → | ||||
Exact match “As of June 2021 eSafe became part of the Smoothwall family.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 12 contacts → | ||||
Exact match “Bold Communications develops Gemini, an integrated security and safety monitoring platform to maximise efficiency and interoperability in the control room, utilising legacy as…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 11 contacts → | ||||
Exact match “Guide Security, based in Darwen, is a well-established security company founded twenty-one years ago by the Walker Family.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 10 contacts → | ||||
Exact match “First County Monitoring (FCM) is one of the leading NSI Gold Accredited alarm monitoring specialists in the UK and Ireland.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 9 contacts → | ||||
Exact match “Corporate IT Systems (CITSL) helps the organisations society depends on most make trust provable.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 9 contacts → | ||||
Exact match “We are DSOC a CCTV Monitoring and Alarm Receiving Centre based in Doncaster.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 9 contacts → | ||||
Exact match “Hevasure provides 24/7, real-time monitoring of closed circuit water systems, covering a wide range of parameters designed to prevent corrosion and identify issues that, if left…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 9 contacts → | ||||
Exact match “VIS is a monitoring company that brings vision, intelligence and safety to construction sites.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 8 contacts → | ||||
Exact match “Intelligent Security and Fire are an accredited independent security systems company based in West London with over 20 years experience providing installation, maintenance…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 8 contacts → | ||||
Exact match “Established in 2010, Moniteye is an industry-leading name in structural and environmental monitoring.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 8 contacts → | ||||
Exact match “We're a leading developer of continuous water and gas monitoring technology.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 7 contacts → | ||||
Exact match “ISUMO leverage industry leading technologies to ensure optimum security, availability and compliance throughout your entire network.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 7 contacts → | ||||
Exact match “Committed to delivering asset integrity confidence, Sentinel's innovative passive systems enable operators to continuously monitor and manage subsea assets.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “monitoring companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 135 monitoring companies based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 270 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Monitoring companies based in the United Kingdom at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 135 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 “monitoring 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 270 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “monitoring companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many monitoring companies are there based in the United Kingdom?
RevenueBase identified 135 company matches for monitoring companies associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Allied Universal Electronic Monitoring tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most monitoring companies?
London leads with 23 company records, followed by Bristol (5) and Manchester (5).
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 270 professional contacts with verified work emails tracked across these 135 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 135 monitoring companies based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Monitoring companies by geography
- Monitoring companies based in Argentina
- Monitoring companies based in Australia
- Monitoring companies based in Brazil
- Monitoring companies based in Canada
- Monitoring companies based in France
- Monitoring companies based in Germany
- Monitoring companies based in Italy
- Monitoring companies based in Mexico
- Monitoring companies based in the Netherlands
- Monitoring companies based in South Africa
- Monitoring companies based in Spain
- Monitoring companies based in the United States
Browse the directory
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
Company intelligence · public preview
Top 25 monitoring 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 135 matching company records for monitoring companies based in the United Kingdom, with 1,208 tracked contacts and 270 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 monitoring 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 | HQ: Leicester, United KingdomReported employees: 201-500 | Leicester, United Kingdom | 201-500 | Exact match | 183 contacts → |
“Allied Universal® Electronic Monitoring is the industry leading technology and service company, offering law enforcement and government agencies the widest variety of cutting-edge…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  SSS Management Servicessss-support.co.ukHQ: Bristol, United KingdomReported employees: 51-200 | Bristol, United Kingdom | 51-200 | Exact match | 68 contacts → |
“is a security and facilities management business with over 25 years’ experience in monitoring, checking and delivering contractor performance for clients.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Security Monitoring Centres UK & Irelandsmc-monitoring.comHQ: Nottingham, United KingdomReported employees: 201-500 | Nottingham, United Kingdom | 201-500 | Exact match | 50 contacts → |
“A global security monitoring brand with sister companies in Holland, Belgium and Australia, we recognise that monitoring is an integral part of your business.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Adpoliceadpolice.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 47 contacts → |
“We develop monitoring tools that make the Internet a safer place for hundreds of international brands.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Forward Security Services Limitedforwardsecurity.uk HQ: Huddersfield, United KingdomReported employees: 11-50 | Huddersfield, United Kingdom | 11-50 | Exact match | 36 contacts → |
“Based in Huddersfield, West Yorkshire.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Farsight Security Services LTDfarsight.co.ukHQ: Peterborough, United KingdomReported employees: 51-200 | Peterborough, United Kingdom | 51-200 | Exact match | 29 contacts → |
“Farsight Security Services is a market-leading provider of remote monitoring and ARC services.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Nortech Management LTDnortechonline.co.ukHQ: Evesham, United KingdomReported employees: 11-50 | Evesham, United Kingdom | 11-50 | Exact match | 24 contacts → |
“Nortech supply specialist monitoring technology products and services to utilities, generators and system integrators.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  ARC Monitoringarcmon.comHQ: Bristol, United KingdomReported employees: 11-50 | Bristol, United Kingdom | 11-50 | Exact match | 21 contacts → |
“Specialist CCTV Monitoring and Alarm Monitoring solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Fenix Monitoringfenixmonitoring.comHQ: Oxford, United KingdomReported employees: 11-50 | Oxford, United Kingdom | 11-50 | Exact match | 18 contacts → |
“For Fire, Alarm & CCTV Installation companies who need reliable monitoring solutions for their clients, Fenix is a completely NEW type of alarm management partnership.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Oracle Visionoracle-vision.com HQ: Wakefield, United KingdomReported employees: 11-50 | Wakefield, United Kingdom | 11-50 | Exact match | 16 contacts → |
“For those who are new to us, here’s Oracle Vision in a nut shell.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Care Protect LTDcare-protect.co.uk HQ: Yarm, United KingdomReported employees: 11-50 | Yarm, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Care Protect are dedicated to improving standards of care quality and safety by giving reassurance through greater transparency.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Fisher Security LTDfishersecurity.co.ukHQ: Goole, United KingdomReported employees: 11-50 | Goole, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Security Services Provider specialising in Remote Monitoring; Installations and Maintenance of CCTV, Fire and Intruder Alarms, Access Controls.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Esafe Globalesafeglobal.comHQ: Salford, United KingdomReported employees: 51-200 | Salford, United Kingdom | 51-200 | Exact match | 13 contacts → |
“As of June 2021 eSafe became part of the Smoothwall family.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Bold Communications LTDboldcommunications.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 12 contacts → |
“Bold Communications develops Gemini, an integrated security and safety monitoring platform to maximise efficiency and interoperability in the control room, utilising legacy as…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Guide Securityguidesecurity.co.ukHQ: Darwen, United KingdomReported employees: 11-50 | Darwen, United Kingdom | 11-50 | Exact match | 11 contacts → |
“Guide Security, based in Darwen, is a well-established security company founded twenty-one years ago by the Walker Family.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | First County Monitoringfirstcountymonitoring.co.uk HQ: Selby, United KingdomReported employees: 51-200 | Selby, United Kingdom | 51-200 | Exact match | 10 contacts → |
“First County Monitoring (FCM) is one of the leading NSI Gold Accredited alarm monitoring specialists in the UK and Ireland.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Corporate IT Systems Limitedcitsl.netHQ: Poole, United KingdomReported employees: 11-50 | Poole, United Kingdom | 11-50 | Exact match | 9 contacts → |
“Corporate IT Systems (CITSL) helps the organisations society depends on most make trust provable.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | DSOCdsoc.uk HQ: Auckley, United KingdomReported employees: 11-50 | Auckley, United Kingdom | 11-50 | Exact match | 9 contacts → |
“We are DSOC a CCTV Monitoring and Alarm Receiving Centre based in Doncaster.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Hevasure LTDhevasure.comHQ: Matlock, United KingdomReported employees: 1-10 | Matlock, United Kingdom | 1-10 | Exact match | 9 contacts → |
“Hevasure provides 24/7, real-time monitoring of closed circuit water systems, covering a wide range of parameters designed to prevent corrosion and identify issues that, if left…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | VIS Systems LTDvis-systems.com HQ: Bury, United KingdomReported employees: 11-50 | Bury, United Kingdom | 11-50 | Exact match | 9 contacts → |
“VIS is a monitoring company that brings vision, intelligence and safety to construction sites.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Intelligent Security And Fire LTDintelligentsecurity.org HQ: Uxbridge, United KingdomReported employees: 1-10 | Uxbridge, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Intelligent Security and Fire are an accredited independent security systems company based in West London with over 20 years experience providing installation, maintenance…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Moniteyemoniteye.co.ukHQ: Watlington, United KingdomReported employees: 1-10 | Watlington, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Established in 2010, Moniteye is an industry-leading name in structural and environmental monitoring.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Salamander Groupsalamander-group.co.ukHQ: Ulverston, United KingdomReported employees: 1-10 | Ulverston, United Kingdom | 1-10 | Exact match | 8 contacts → |
“We're a leading developer of continuous water and gas monitoring technology.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  ISUMOisumo.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 7 contacts → |
“ISUMO leverage industry leading technologies to ensure optimum security, availability and compliance throughout your entire network.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Sentinel Subseasentinel-subsea.comHQ: Aberdeen, United KingdomReported employees: 1-10 | Aberdeen, United Kingdom | 1-10 | Exact match | 7 contacts → |
“Committed to delivering asset integrity confidence, Sentinel's innovative passive systems enable operators to continuously monitor and manage subsea assets.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 135 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Monitoring companies: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
133 records in the displayed employee bands.
2 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 135 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for monitoring 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 monitoring companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 135 matching company records, 1,208 tracked contacts and 270 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Monitoring companies by geography
- Monitoring companies based in Argentina
- Monitoring companies based in Australia
- Monitoring companies based in Brazil
- Monitoring companies based in Canada
- Monitoring companies based in France
- Monitoring companies based in Germany
- Monitoring companies based in Italy
- Monitoring companies based in Mexico
- Monitoring companies based in the Netherlands
- Monitoring companies based in South Africa
- Monitoring companies based in Spain
- Monitoring companies based in the United States
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 monitoring companies based in the United Kingdom. Snapshot: September 20, 2026. https://revenuebase.ai/companies/monitoring-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
Company intelligence · public preview
Top 25 monitoring companies based in the United Kingdom
RevenueBase records 135 matching company records for monitoring companies based in the United Kingdom, with 1,208 tracked contacts and 270 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 monitoring 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 | HQ: Leicester, United KingdomReported employees: 201-500 | Leicester, United Kingdom | 201-500 | Exact match | 183 contacts → |
“Allied Universal® Electronic Monitoring is the industry leading technology and service company, offering law enforcement and government agencies the widest variety of cutting-edge…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | SSS Management Servicessss-support.co.uk HQ: Bristol, United KingdomReported employees: 51-200 | Bristol, United Kingdom | 51-200 | Exact match | 68 contacts → |
“is a security and facilities management business with over 25 years’ experience in monitoring, checking and delivering contractor performance for clients.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Security Monitoring Centres UK & Irelandsmc-monitoring.com HQ: Nottingham, United KingdomReported employees: 201-500 | Nottingham, United Kingdom | 201-500 | Exact match | 50 contacts → |
“A global security monitoring brand with sister companies in Holland, Belgium and Australia, we recognise that monitoring is an integral part of your business.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Adpoliceadpolice.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 47 contacts → |
“We develop monitoring tools that make the Internet a safer place for hundreds of international brands.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Forward Security Services Limitedforwardsecurity.uk HQ: Huddersfield, United KingdomReported employees: 11-50 | Huddersfield, United Kingdom | 11-50 | Exact match | 36 contacts → |
“Based in Huddersfield, West Yorkshire.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Farsight Security Services LTDfarsight.co.uk HQ: Peterborough, United KingdomReported employees: 51-200 | Peterborough, United Kingdom | 51-200 | Exact match | 29 contacts → |
“Farsight Security Services is a market-leading provider of remote monitoring and ARC services.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Nortech Management LTDnortechonline.co.uk HQ: Evesham, United KingdomReported employees: 11-50 | Evesham, United Kingdom | 11-50 | Exact match | 24 contacts → |
“Nortech supply specialist monitoring technology products and services to utilities, generators and system integrators.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | ARC Monitoringarcmon.com HQ: Bristol, United KingdomReported employees: 11-50 | Bristol, United Kingdom | 11-50 | Exact match | 21 contacts → |
“Specialist CCTV Monitoring and Alarm Monitoring solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Fenix Monitoringfenixmonitoring.com HQ: Oxford, United KingdomReported employees: 11-50 | Oxford, United Kingdom | 11-50 | Exact match | 18 contacts → |
“For Fire, Alarm & CCTV Installation companies who need reliable monitoring solutions for their clients, Fenix is a completely NEW type of alarm management partnership.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Oracle Visionoracle-vision.com HQ: Wakefield, United KingdomReported employees: 11-50 | Wakefield, United Kingdom | 11-50 | Exact match | 16 contacts → |
“For those who are new to us, here’s Oracle Vision in a nut shell.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Care Protect LTDcare-protect.co.uk HQ: Yarm, United KingdomReported employees: 11-50 | Yarm, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Care Protect are dedicated to improving standards of care quality and safety by giving reassurance through greater transparency.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Fisher Security LTDfishersecurity.co.uk HQ: Goole, United KingdomReported employees: 11-50 | Goole, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Security Services Provider specialising in Remote Monitoring; Installations and Maintenance of CCTV, Fire and Intruder Alarms, Access Controls.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Esafe Globalesafeglobal.com HQ: Salford, United KingdomReported employees: 51-200 | Salford, United Kingdom | 51-200 | Exact match | 13 contacts → |
“As of June 2021 eSafe became part of the Smoothwall family.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Bold Communications LTDboldcommunications.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 12 contacts → |
“Bold Communications develops Gemini, an integrated security and safety monitoring platform to maximise efficiency and interoperability in the control room, utilising legacy as…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Guide Securityguidesecurity.co.uk HQ: Darwen, United KingdomReported employees: 11-50 | Darwen, United Kingdom | 11-50 | Exact match | 11 contacts → |
“Guide Security, based in Darwen, is a well-established security company founded twenty-one years ago by the Walker Family.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | First County Monitoringfirstcountymonitoring.co.uk HQ: Selby, United KingdomReported employees: 51-200 | Selby, United Kingdom | 51-200 | Exact match | 10 contacts → |
“First County Monitoring (FCM) is one of the leading NSI Gold Accredited alarm monitoring specialists in the UK and Ireland.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Corporate IT Systems Limitedcitsl.net HQ: Poole, United KingdomReported employees: 11-50 | Poole, United Kingdom | 11-50 | Exact match | 9 contacts → |
“Corporate IT Systems (CITSL) helps the organisations society depends on most make trust provable.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | DSOCdsoc.uk HQ: Auckley, United KingdomReported employees: 11-50 | Auckley, United Kingdom | 11-50 | Exact match | 9 contacts → |
“We are DSOC a CCTV Monitoring and Alarm Receiving Centre based in Doncaster.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Hevasure LTDhevasure.com HQ: Matlock, United KingdomReported employees: 1-10 | Matlock, United Kingdom | 1-10 | Exact match | 9 contacts → |
“Hevasure provides 24/7, real-time monitoring of closed circuit water systems, covering a wide range of parameters designed to prevent corrosion and identify issues that, if left…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | VIS Systems LTDvis-systems.com HQ: Bury, United KingdomReported employees: 11-50 | Bury, United Kingdom | 11-50 | Exact match | 9 contacts → |
“VIS is a monitoring company that brings vision, intelligence and safety to construction sites.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Intelligent Security And Fire LTDintelligentsecurity.org HQ: Uxbridge, United KingdomReported employees: 1-10 | Uxbridge, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Intelligent Security and Fire are an accredited independent security systems company based in West London with over 20 years experience providing installation, maintenance…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Moniteyemoniteye.co.uk HQ: Watlington, United KingdomReported employees: 1-10 | Watlington, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Established in 2010, Moniteye is an industry-leading name in structural and environmental monitoring.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Salamander Groupsalamander-group.co.uk HQ: Ulverston, United KingdomReported employees: 1-10 | Ulverston, United Kingdom | 1-10 | Exact match | 8 contacts → |
“We're a leading developer of continuous water and gas monitoring technology.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | ISUMOisumo.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 7 contacts → |
“ISUMO leverage industry leading technologies to ensure optimum security, availability and compliance throughout your entire network.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Sentinel Subseasentinel-subsea.com HQ: Aberdeen, United KingdomReported employees: 1-10 | Aberdeen, United Kingdom | 1-10 | Exact match | 7 contacts → |
“Committed to delivering asset integrity confidence, Sentinel's innovative passive systems enable operators to continuously monitor and manage subsea assets.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 135 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Monitoring companies: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
133 records in the displayed employee bands.
2 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 135 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for monitoring 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 monitoring companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 135 matching company records, 1,208 tracked contacts and 270 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Monitoring companies by geography
- Monitoring companies based in Argentina
- Monitoring companies based in Australia
- Monitoring companies based in Brazil
- Monitoring companies based in Canada
- Monitoring companies based in France
- Monitoring companies based in Germany
- Monitoring companies based in Italy
- Monitoring companies based in Mexico
- Monitoring companies based in the Netherlands
- Monitoring companies based in South Africa
- Monitoring companies based in Spain
- Monitoring companies based in the United States
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 monitoring companies based in the United Kingdom. Snapshot: September 20, 2026. https://revenuebase.ai/companies/monitoring-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗