Company lists · Data refreshed November 2026

Top 25 Hvac system qualification companies based in the United Kingdom

Name: Hvac system qualification companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 369 companies tracked

RevenueBase identified 369 company matches for hvac system qualification companies associated with the United Kingdom as of November 2026 and tracks 2,074 professional contacts across them, including 626 with verified work emails. London is the largest hub.

This list covers company matches for hvac system qualification 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

369Companies

2,074Contacts tracked

626Verified emails

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The 25 largest hvac system qualification companies based in the United Kingdom

Ranked by team size

Top 25 of 369 company matches for hvac system qualification 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Nationwide AIR Conditioning Limited	Exact match	Edenbridge, United KingdomHQ recorded Nov 6, 2026	51-200	96 contacts →
	Exact match “Nationwide Air Conditioning Limited is a carbon-neutral business that has been exceeding customer expectations since 2001.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Principal Hvac	Exact match	Belfast, United KingdomHQ recorded Nov 6, 2026	51-200	40 contacts →
	Exact match “Principal HVAC are at the leading edge of Heating, Ventilation & Air conditioning systems for commercial and residential property.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	RJ Urmson Group	Exact match	Chorley, United KingdomHQ recorded Nov 6, 2026	51-200	38 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
4	Sutton Services International Limited	Exact match	Inchinnan, United KingdomHQ recorded Nov 6, 2026	51-200	34 contacts →
	Exact match “Sutton Services International Ltd is one of the UK’s leading and largest specialist HVAC Commissioning companies in delivering Quality-Accredited Building Services Commissioning…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Quora Group	Exact match	North Shields, United KingdomHQ recorded Nov 6, 2026	51-200	33 contacts →
	Exact match “Professional service supplying, installing and maintaining energy efficient HVAC systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Sutcom Limited	Exact match	North Shields, United KingdomHQ recorded Nov 6, 2026	51-200	32 contacts →
	Exact match “Sutcom is one of the UK’s leading and largest specialist HVAC Commissioning companies in delivering Quality-Accredited Building Services Commissioning Management and System…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Ventilation Surveys & Services LTD	Exact match	Liverpool, United KingdomHQ recorded Nov 6, 2026	51-200	30 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
8	Commissioning Technical Services	Exact match	London, United KingdomHQ recorded Nov 6, 2026	11-50	28 contacts →
	Exact match “Engineering Confidence.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	CAM Refrigeration & AIR Conditioning Limited	Exact match	Hull, United KingdomHQ recorded Nov 6, 2026	11-50	22 contacts →
	Exact match “CAM Refrigeration & Air Conditioning provides installation, service and maintenance across all HVAC sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Mellor Bromley Mechanical Services	Exact match	Leicester, United KingdomHQ recorded Nov 6, 2026	51-200	21 contacts →
	Exact match “Mellor Bromley has a vast wealth of experience and expertise in the design and installation of Mechanical Services (heating, cooling, air conditioning, ventilation, water plumbing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Airtech AIR Conditioning Services Limited	Exact match	East Grinstead, United KingdomHQ recorded Nov 6, 2026	1-10	19 contacts →
	Exact match “Airtech was started in 1980 providing Air Conditioning Design, Sales, Installation, Service, Maintenance and Hire of Fixed and Portable Air Conditioning Systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Climatix Group	Exact match	Church Fenton, United KingdomHQ recorded Nov 6, 2026	11-50	19 contacts →
	Exact match “Born in Yorkshire.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Cleanheat	Exact match	London, United KingdomHQ recorded Nov 6, 2026	11-50	19 contacts →
	Exact match “CleanHeat are a London based Commercial Heating and engineering company working throughout central London and the Home Counties.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Aircon Sales & Service	Exact match	Belfast, United KingdomHQ recorded Nov 6, 2026	11-50	16 contacts →
	Exact match “Established in June 1996, Aircon Sales & Service are a leading Air-Conditioning Contractor based in Belfast and has built its reputation on providing consistent quality service…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Airflow Cooling LTD	Exact match	Sheffield, United KingdomHQ recorded Nov 6, 2026	51-200	15 contacts →
	Exact match “Airflow Cooling provides professional HVAC design and installation services for all business types, regardless of industry sector.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Eurocom Technical Services Limited	Exact match	Walsall, United KingdomHQ recorded Nov 6, 2026	11-50	15 contacts →
	Exact match “Founded in 1992, Eurocom Technical Services provide a comprehensive range of professional HVAC Services, including commissioning, ductwork cleaning and pressure testing, the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	CSD AIR Conditioning LTD	Exact match	Clydebank, United KingdomHQ recorded Nov 6, 2026	11-50	15 contacts →
	Exact match “West Dunbartonshire Best Performing Medium Business Award Winner 2023.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Hadrian AIR Conditioning LTD	Exact match	Washington, United KingdomHQ recorded Nov 6, 2026	11-50	15 contacts →
	Exact match “Hadrian Air Conditioning are currently trading in their 30th year so are an established Air Conditioning contractor currently employing around 50 people.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	AES Maintenance LTD	Exact match	High Wycombe, United KingdomHQ recorded Nov 6, 2026	11-50	14 contacts →
	Exact match “AES Maintenance Ltd was launched in January 2008 to provide specialist Heating, Ventilation and Air Conditioning (HVAC) Engineering Skills to the Building Services sector.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Terratherm	Exact match	Caerphilly, United KingdomHQ recorded Nov 6, 2026	11-50	14 contacts →
	Exact match “Terratherm provide Heating, Cooling, Ventilation and Air Conditioning solutions and services that set industry standards.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	AIR Options LTD	Exact match	Witham, United KingdomHQ recorded Nov 6, 2026	11-50	14 contacts →
	Exact match “Air Options was founded in 1995 and offer high quality design, installation, maintenance, repair and refurbishment packages, to commercial and light industrial properties, in and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Skyline AIR Conditioning	Exact match	Stockport, United KingdomHQ recorded Nov 6, 2026	11-50	14 contacts →
	Exact match “Skyline Air Conditioning Ltd over the last 20 years has become an established sub-contractor to the M&E businesses operating within the construction industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Direct Cooling Systems Limited	Exact match	Long Eaton, United KingdomHQ recorded Nov 6, 2026	11-50	14 contacts →
	Exact match “Direct Cooling Systems was established in to supply, install and commission air conditioning systems, generally within the commercial sector.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Balanced AIR Specialists Cleanroom Commissioning LTD	Exact match	Newton-le-willows, United KingdomHQ recorded Nov 6, 2026	11-50	13 contacts →
	Exact match “BAS Cleanroom Commissioning LTD are a ISO9001 compliant cleanroom / clean air device qualification company and can provide all your cleanroom / laboratory validation requirements.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Askews	Exact match	Colne, United KingdomHQ recorded Nov 6, 2026	11-50	13 contacts →
	Exact match “With over 35 years’ experience, Askews has become the ‘go to’ company for heating, ventilation and air conditioning services.” Recorded in the RevenueBase company graph · Nov 6, 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 “hvac system qualification 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 369 hvac system qualification companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 626 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hvac system qualification companies based in the United Kingdom at a glance

As of Nov 6, 2026

30.2%Verified-email coverage

5.6Average contacts per company

1-10Median size (employees)

11.4%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

206

11-50

131

51-200

1,001-5,000

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 369 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 “hvac system qualification 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 626 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.

Hvac system qualification companies by metro

Hvac system qualification companies in London42

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 “hvac system qualification companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hvac system qualification companies are there based in the United Kingdom?

RevenueBase identified 369 company matches for hvac system qualification 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?

Nationwide AIR Conditioning Limited tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most hvac system qualification companies?

London leads with 42 company records, followed by Manchester (8) and Birmingham (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 626 professional contacts with verified work emails tracked across these 369 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.