Company lists · Data refreshed November 2026

Top 25 Ventilation system testing companies based in the United Kingdom

RevenueBase identified 253 company matches for ventilation system testing companies associated with the United Kingdom as of November 2026 and tracks 2,361 professional contacts across them, including 924 with verified work emails. London is the largest hub.

This list covers company matches for ventilation system testing 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 6, 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 Nov 6, 2026 How this list was built
253Companies
2,361Contacts tracked
924Verified emails
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The 25 largest ventilation system testing companies based in the United Kingdom

Ranked by team size
Top 25 of 253 company matches for ventilation system testing companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchPetersfield, United KingdomHQ recorded Nov 6, 20261,001-5,000307 contacts →

Exact match

“Since 1931 we have been harnessing the natural elements to provide healthy, comfortable and safe working and living conditions in buildings.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchHarrogate, United KingdomHQ recorded Nov 6, 2026201-500207 contacts →

Exact match

“envirovent is the leading manufacturer and supplier of ventilation systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchFareham, United KingdomHQ recorded Nov 6, 202651-200141 contacts →

Exact match

“For over 50 years, Elta has been a leader in fan design and engineering, offering a diverse range of products for various applications.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBlackpool, United KingdomHQ recorded Nov 6, 2026201-50081 contacts →

Exact match

“Established in 1960, Gilberts is the UK’s leading designer and manufacturer of grilles, diffusers, louvres, smoke/fire dampers, and natural ventilation systems for the heating…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchPoole, United KingdomHQ recorded Nov 6, 202651-20063 contacts →

Exact match

“Vent Engineering are a specialist in natural and smoke ventilation systems and have been manufacturing, supplying, installing and commissioning ventilation systems since 1988 for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-50049 contacts →

Exact match

“From its foundation in 1997, Imperial Ductwork Services Ltd (IDSL) has grown into one of the industry’s leading companies in the Manufacture and Installation of Ductwork…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBradley Stoke, United KingdomHQ recorded Nov 6, 202651-20042 contacts →

Exact match

“Airmec Essential Services is one of the few remaining independent specialists in air and water hygiene, and one of the few firms that can offer a complete, seamless fire damper…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchManchester, United KingdomHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“MAT supplies specialist critical ventilation solutions for the NHS, private healthcare providers, and life science facilities such as universities and research establishments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBelfast, United KingdomHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“Founded in 1984 by the visionary engineer Billy Divers, Brookvent has established itself as a trailblazer in the ventilation industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchChorley, United KingdomHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“RJ Urmson Group consists of 5 companies: RJ Urmson Commissioning Engineers Ltd, Urmson LLP, National Hygiene Services Ltd, Urmson Fire Specialists Ltd and B&R Consulting Engineers…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSittingbourne, United KingdomHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“Ventilation and M&E company founded in 2002 by Dave Wood; the company has gone from strength to strength in the South-East, specialising in ventilation and air quality with a…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchAylesford, United KingdomHQ recorded Nov 6, 202651-20032 contacts →

Exact match

“Established in 1980, BSB Engineering Services specialise in the design, manufacture and distribution of air, fire and smoke control products.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchColwyn Bay, United KingdomHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Welcome to Poppleton, one of the UK’s leading providers of quality ventilation solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLiverpool, United KingdomHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“Ventilation Surveys and Services Ltd provide nationwide coverage for the following services: Ventilation Cleaning and Maintenance Air Conditioning Installation & Maintenance Fire…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSutton, United KingdomHQ recorded Nov 6, 202611-5030 contacts →

Exact match

“We help you achieve fire safety critical compliance by inspecting, testing and maintaining fire & smoke dampers, high-risk grease extract ductwork and ventilation systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchStirling, United KingdomHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“At Perfect Service Solutions we provide duct cleaning, ventilation hygiene, deep cleaning and decontamination solutions for the food and facilities management industry throughout…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBacup, United KingdomHQ recorded Nov 6, 202651-20022 contacts →

Exact match

“Specialists in Air Filtration & Engineering Services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLarne, United KingdomHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“BPC Ventilation are the leading independent domestic and commercial ventilation specialists.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchNewtownabbey, United KingdomHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Established in 1974, Brankin Engineering Ltd is a leading Ventilation Ductwork contractor operating throughout the United Kingdom and Ireland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMagherafelt, United KingdomHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“BEAM specialise in the supply and installation of Central Vacuum and Mechanical Ventilation systems to homes, commerce, and industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchWrexham Industrial Estate, United KingdomHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Leading Specialists in Extraction Ventilation Hygiene, Fire Damper Testing and Building Compliance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchOllerton, United KingdomHQ recorded Nov 6, 20261-1019 contacts →

Exact match

“IAQ Services offer high quality independent advice to owners and maintainers of Ventilation systems throughout the UK and Europe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBolton, United KingdomHQ recorded Nov 6, 202651-20019 contacts →

Exact match

“Who we are.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchRichmond, United KingdomHQ recorded Nov 6, 202651-20018 contacts →

Exact match

“We create indoor environments that are fresh, efficient and comfortable for the people that live in them.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBolton, United KingdomHQ recorded Nov 6, 202651-20018 contacts →

Exact match

“RNM ELECTRICAL LIMITED is a construction company based out of 10 THE HILLOCK THE HILLOCK, BOLTON, United Kingdom.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 253 ventilation system testing companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 924 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ventilation system testing companies based in the United Kingdom at a glance

As of Nov 6, 2026
39.1%Verified-email coverage
9.3Average contacts per company
1-10Median size (employees)
7.9%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
140
11-50
85
51-200
20
201-500
3
501-1,000
1
1,001-5,000
1

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 253 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 “ventilation system testing 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 924 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 6, 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 “ventilation system testing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ventilation system testing companies are there based in the United Kingdom?

RevenueBase identified 253 company matches for ventilation system testing 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?

Colt International tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most ventilation system testing companies?

London leads with 20 company records, followed by Birmingham (6) and Manchester (6).

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 924 professional contacts with verified work emails tracked across these 253 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 6, 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.