Company lists · Data refreshed October 2026

Top 25 Fire and gas monitoring and control system engineering services based in the United Kingdom

Name: Fire and gas monitoring and control system engineering services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 25, 2026 313 companies tracked

RevenueBase identified 313 company matches for fire and gas monitoring and control system engineering services associated with the United Kingdom as of October 2026 and tracks 3,675 professional contacts across them, including 1,691 with verified work emails. London is the largest hub.

This list covers company matches for fire and gas monitoring and control system engineering services 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 October 25, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 25, 2026 How this list was built

313Companies

3,675Contacts tracked

1,691Verified emails

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The 25 largest fire and gas monitoring and control system engineering services based in the United Kingdom

Ranked by team size

Top 25 of 313 company matches for fire and gas monitoring and control system engineering services based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 25, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Trinity Fire & Security Systems	Exact match	Exeter, United KingdomHQ recorded Oct 25, 2026	501-1,000	363 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 · Oct 25, 2026 · View company records in RevenueBase
2	SKN	Exact match	Aberdeen, United KingdomHQ recorded Oct 25, 2026	201-500	234 contacts →
	Exact match “SKN specialise in providing competent technical personnel to carry out engineering solutions from concept to completion in the design, supply, installation, commissioning…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
3	Zeeco Europe LTD	Exact match	Rutland, United KingdomHQ recorded Oct 25, 2026	51-200	180 contacts →
	Exact match “The World Leader in Combustion and Environmental Systems Zeeco, Inc.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
4	Lawrence Webster Forrest	Exact match	Kenley, United KingdomHQ recorded Oct 25, 2026	n/a	154 contacts →
	Exact match “Lawrence Webster Forrest is a highly successful team of fire safety specialists with offices located in London and Madrid.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
5	Alpine Fire Engineers LTD	Exact match	Bury, United KingdomHQ recorded Oct 25, 2026	51-200	144 contacts →
	Exact match “With over 30 years of industry experience, Alpine Fire Engineers delivers technically advanced fire protection solutions and lifecycle aftercare services for critical assets…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
6	DPS Group	Exact match	Glenrothes, United KingdomHQ recorded Oct 25, 2026	51-200	140 contacts →
	Exact match “Shaping the future, together.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
7	Orbital GAS Systems Bilfinger Nzero	Exact match	Stone, United KingdomHQ recorded Oct 25, 2026	51-200	104 contacts →
	Exact match “Over the past 30 years, Orbital has grown to become one of the UK's largest independent system integration organisations handling various contracts ranging in value.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
8	Ea-Rs Fire Engineering LTD	Exact match	Witham, United KingdomHQ recorded Oct 25, 2026	51-200	82 contacts →
	Exact match “Incorporated in 1996, EA-RS Fire Engineering are the UK’s trusted provider of intelligent and sustainable compliant Fire Safety Systems and Services.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
9	Nucore Group	Exact match	Aberdeen, United KingdomHQ recorded Oct 25, 2026	51-200	78 contacts →
	Exact match “Nucore Group is a provider of integrated engineering solutions specialising in hazardous environments.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
10	C&p Engineering Services LTD	Exact match	Swansea, United KingdomHQ recorded Oct 25, 2026	51-200	66 contacts →
	Exact match “Through our integrated electrical, control & instrumentation services we design, construct & deliver complete projects & provide maintenance services to companies throughout the…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
11	DFP Services	Exact match	Durham, United KingdomHQ recorded Oct 25, 2026	51-200	65 contacts →
	Exact match “DFP Services are a leading provider of Fire, Security, Communications, Mechanical and Electrical services.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
12	PFS Group	Exact match	Southend-on-sea, United KingdomHQ recorded Oct 25, 2026	51-200	59 contacts →
	Exact match “PFS Group Limited is an independently owned Fire & Security company that has been established since 1998.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
13	Proeon Systems LTD	Exact match	Norwich, United KingdomHQ recorded Oct 25, 2026	51-200	58 contacts →
	Exact match “Proeon Systems - an independent specialist systems integrator, with +20 years experience supplying control and safety solutions for complex and critical applications across the…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
14	Applied Integration UK LTD	Exact match	Stokesley, United KingdomHQ recorded Oct 25, 2026	11-50	53 contacts →
	Exact match “Applied Integration is one of the UK’s leading independent systems integrators, delivering cutting edge solutions to 21st Century industry.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
15	Technifire Solutions Limited	Exact match	Rainham, United KingdomHQ recorded Oct 25, 2026	51-200	41 contacts →
	Exact match “TechniFire Solutions Ltd are a truly independent fire life safety and security specialist service provider holding all statutory compliance certification, quality assurance and…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
16	Fafs Fire & Security	Exact match	Chessington, United KingdomHQ recorded Oct 25, 2026	51-200	41 contacts →
	Exact match “Since 1988 FAFS Fire & Security has specialised in designing, installing, commissioning and servicing of Open Protocol automatic Fire Detection and Alarm Systems.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
17	OCU Hornbill LTD	Exact match	Neath, United KingdomHQ recorded Oct 25, 2026	51-200	41 contacts →
	Exact match “Hornbill Together.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
18	Integro Design Engineering Associates Idea LTD	Exact match	Glasgow, United KingdomHQ recorded Oct 25, 2026	11-50	32 contacts →
	Exact match “IDEA Ltd.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
19	International GAS Detectors LTD	Exact match	Stockport, United KingdomHQ recorded Oct 25, 2026	11-50	32 contacts →
	Exact match “International Gas Detectors (IGD) develops, manufacture and market a complete range of gas detection products to protect people and plant against gas hazards in industry, research…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
20	DAS Fire Limited	Exact match	Reading, United KingdomHQ recorded Oct 25, 2026	11-50	29 contacts →
	Exact match “DAS Fire specialises in protecting mission-critical environments where reliability, compliance, and performance are non-negotiable.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
21	TPT Fire Maintenance LTD	Exact match	Basingstoke, United KingdomHQ recorded Oct 25, 2026	51-200	28 contacts →
	Exact match “Expert maintenance and servicing of your fire protection systems, to protect everything that matters most to you.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
22	Photuris Fire & Security	Exact match	Dinnington, United KingdomHQ recorded Oct 25, 2026	11-50	26 contacts →
	Exact match “Established in 2005, Photuris is a trusted provider of fire protection, security systems, and communications solutions across the UK.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
23	Sunfish Services Limited	Exact match	Derby, United KingdomHQ recorded Oct 25, 2026	11-50	25 contacts →
	Exact match “Sunfish design, install, commission, service and maintain: fire alarm systems; emergency lighting; portable fire extinguishers; gas suppression systems; automatic opening vent…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
24	Frontline Safety UK LTD	Exact match	Glasgow, United KingdomHQ recorded Oct 25, 2026	11-50	24 contacts →
	Exact match “Frontline Safety UK Ltd is a national provider of Gas and Environmental Monitoring instrumentation.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
25	A1-Cbiss	Exact match	Birkenhead, United KingdomHQ recorded Oct 25, 2026	51-200	24 contacts →
	Exact match “In July 2023, A1-CBISS Limited merged with ENVEA UK Limited.” Recorded in the RevenueBase company graph · Oct 25, 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 “fire and gas monitoring and control system engineering services”. 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 313 fire and gas monitoring and control system engineering services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,691 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Fire and gas monitoring and control system engineering services based in the United Kingdom at a glance

As of Oct 25, 2026

46.0%Verified-email coverage

11.7Average contacts per company

1-10Median size (employees)

5.8%Largest-city concentration · London

Oct 25, 2026Page data refreshed

Companies by employee count

1-10

159

11-50

111

51-200

201-500

501-1,000

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 313 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 “fire and gas monitoring and control system engineering services” 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 1,691 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 October 25, 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 “fire and gas monitoring and control system engineering services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many fire and gas monitoring and control system engineering services are there based in the United Kingdom?

RevenueBase identified 313 company matches for fire and gas monitoring and control system engineering services associated with the United Kingdom as of October 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?

Trinity Fire & Security Systems tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most fire and gas monitoring and control system engineering services?

London leads with 18 company records, followed by Aberdeen (9) and Glasgow (9).

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 1,691 professional contacts with verified work emails tracked across these 313 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 October 25, 2026.

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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.