Company lists · Data refreshed September 2026

Top 25 Hvac diagnostic software companies based in the United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 71 companies tracked

RevenueBase identified 71 hvac diagnostic software companies headquartered in the United Kingdom as of September 2026 and tracks 583 professional contacts across them, including 162 with verified work emails. London is the largest hub.

This list covers hvac diagnostic software companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

71Companies

583Contacts tracked

162Verified emails

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The 25 largest hvac diagnostic software companies based in the United Kingdom

Ranked by team size

Top 25 of 71 hvac diagnostic software companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to hvac diagnostic software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Nationwide AIR Conditioning Limited	Indirect evidence	Edenbridge, United KingdomHQ checked Sep 28, 2026	51-200	92 contacts →
	Indirect evidence “Nationwide Air Conditioning Limited is a carbon-neutral business that has been exceeding customer expectations since 2001.” Source: RevenueBase Database · checked Sep 28, 2026
2	Daikin Applied Service	Partial evidence	Dartford, United KingdomHQ checked Sep 28, 2026	51-200	56 contacts →
	Partial evidence “Daikin Applied Service is the service division of Daikin Applied (UK) and offers full after-sales support for the maintenance and repair of ANY BRAND of HVAC equipment.” Source: RevenueBase Database · checked Sep 28, 2026
3	361 Degrees LTD AIR Conditioning, Heating & Ventilation Solutions	Indirect evidence	Leighton Buzzard, United KingdomHQ checked Sep 28, 2026	11-50	30 contacts →
	Indirect evidence “A good environment can improve morale, productivity and employee retention.” Source: RevenueBase Database · checked Sep 28, 2026
4	Bonus Eventus Maintenance LTD	Partial evidence	Camberley, United KingdomHQ checked Sep 28, 2026	11-50	26 contacts →
	Partial evidence “Trusted provider of cost-saving maintenance and repair of commercial heating, ventilation & air conditioning (HVAC) systems in London, Surrey, Hampshire, Hertfordshire, Berkshire…” Source: RevenueBase Database · checked Sep 28, 2026
5	Eurocom Technical Services Limited	Partial evidence	Walsall, United KingdomHQ checked Sep 28, 2026	11-50	15 contacts →
	Partial evidence “Founded in 1992, Eurocom Technical Services provide a comprehensive range of professional HVAC Services, including commissioning, ductwork cleaning and pressure testing, the…” Source: RevenueBase Database · checked Sep 28, 2026
6	Computair LTD	Partial evidence	Toddington, United KingdomHQ checked Sep 28, 2026	11-50	14 contacts →
	Partial evidence “Computair is a world-leading developer of design, selection and manufacturing software for the Heating, Ventilation, Air Conditioning and Refrigeration (HVACR) industries.” Source: RevenueBase Database · checked Sep 28, 2026
7	Askews	Indirect evidence	Colne, United KingdomHQ checked Sep 28, 2026	11-50	13 contacts →
	Indirect evidence “With over 35 years’ experience, Askews has become the ‘go to’ company for heating, ventilation and air conditioning services.” Source: RevenueBase Database · checked Sep 28, 2026
8	AIR Options LTD	Indirect evidence	Witham, United KingdomHQ checked Sep 28, 2026	11-50	13 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
9	Terratherm	Indirect evidence	Caerphilly, United KingdomHQ checked Sep 28, 2026	11-50	13 contacts →
	Indirect evidence “Terratherm provide Heating, Cooling, Ventilation and Air Conditioning solutions and services that set industry standards.” Source: RevenueBase Database · checked Sep 28, 2026
10	CSD AIR Conditioning LTD	Indirect evidence	Clydebank, United KingdomHQ checked Sep 28, 2026	11-50	13 contacts →
	Indirect evidence “West Dunbartonshire Best Performing Medium Business Award Winner 2023.” Source: RevenueBase Database · checked Sep 28, 2026
11	Klima-Therm	Indirect evidence	Wimbledon, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “With a complete range of air-conditioning and refrigeration equipment, Klima-Therm can offer a tailored solution that works for you, your building and your budget.” Source: RevenueBase Database · checked Sep 28, 2026
12	Autocraft Equipment LTD	Partial evidence	Martock, United KingdomHQ checked Sep 28, 2026	1-10	12 contacts →
	Partial evidence “Autocraft Equipment Ltd started over 30 years ago, supplying vehicle diagnostic and workshop equipment to car manufacturers and workshops and is now the largest independent…” Source: RevenueBase Database · checked Sep 28, 2026
13	M&e Maintenance Solutions	Indirect evidence	Birmingham, United KingdomHQ checked Sep 28, 2026	11-50	11 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
14	Mid-Tech Services LTD	Partial evidence	Shirley, United KingdomHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “Mid-Tech Services has successfully served the Heating, Ventilation and Air Conditioning (HVAC) industry since our inauguration in 2008, growing in stature and enhancing our…” Source: RevenueBase Database · checked Sep 28, 2026
15	SGL Systems International	Partial evidence	Lesmahagow, United KingdomHQ checked Sep 28, 2026	51-200	10 contacts →
	Partial evidence “SGL Systems International (SGL) is a world-class provider of HVAC solutions.” Source: RevenueBase Database · checked Sep 28, 2026
16	WG Property LTD	Indirect evidence	Church Crookham, United KingdomHQ checked Sep 28, 2026	1-10	10 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
17	Orlando Refrigeration & AIR Conditioning Limited	Indirect evidence	Hemel Hempstead, United KingdomHQ checked Sep 28, 2026	1-10	8 contacts →
	Indirect evidence “Fundamentally, we are an Air conditioning & Refrigeration company, but we’re very different from your standard operator.” Source: RevenueBase Database · checked Sep 28, 2026
18	AIR Centric Facilities LTD	Indirect evidence	Barnsley, United KingdomHQ checked Sep 28, 2026	1-10	8 contacts →
	Indirect evidence “Together we create the perfect environment A National business specialising in Air Quality, Heating, Cooling and Ventilation, we work alongside you to create and realise your…” Source: RevenueBase Database · checked Sep 28, 2026
19	Heat Interface Team LTD	Indirect evidence	Derby, United KingdomHQ checked Sep 28, 2026	1-10	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
20	Opek Limited	Partial evidence	Cambridge, United KingdomHQ checked Sep 28, 2026	11-50	6 contacts →
	Partial evidence “We are Opek Limited, a synergy of services backed by over 50 years of experience within the HVAC Sector We pride ourselves on the high level of customer service we provide our…” Source: RevenueBase Database · checked Sep 28, 2026
21	Managed Mechanical Services LTD	Indirect evidence	Liverpool, United KingdomHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence “Here at Managed Mechanical Services Ltd.” Source: RevenueBase Database · checked Sep 28, 2026
22	Climatec Engineering Limited	Indirect evidence	Middlesbrough, United KingdomHQ checked Sep 28, 2026	11-50	6 contacts →
	Indirect evidence “Climatec Engineering Limited offer a turnkey solution for all your Gas, Oil, Air conditioning, Ventilation and Bms controls requirements, from the design and scoping stage through…” Source: RevenueBase Database · checked Sep 28, 2026
23	Gross AIR LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	6 contacts →
	Partial evidence “We are a London-based HVAC installation & maintenance company with a team of 10 engineers.” Source: RevenueBase Database · checked Sep 28, 2026
24	Advanced	Indirect evidence	Basingstoke, United KingdomHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence “Established in 1982, Advanced has built up an outstanding reputation as the provider of world-beating equipment for AC & R service engineers.” Source: RevenueBase Database · checked Sep 28, 2026
25	Havenwise	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “At Havenwise, we believe that heat pumps are the future.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: hvac diagnostic software companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names hvac diagnostic software companies.
Partial evidence: Its own public description names part of hvac diagnostic software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hvac diagnostic software companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 71 hvac diagnostic software companies based in the United Kingdom

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Hvac diagnostic software companies based in the United Kingdom at a glance

As of Sep 28, 2026

27.8%Verified-email coverage

8.2Average contacts per company

1-10Median size (employees)

9.9%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

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 71 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among hvac diagnostic software companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “hvac diagnostic software companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names hvac diagnostic software companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among hvac diagnostic software companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 162 across the full list. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names hvac diagnostic software companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many hvac diagnostic software companies are there based in the United Kingdom?

RevenueBase identified 71 hvac diagnostic software companies headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Nationwide AIR Conditioning Limited, headquartered in Edenbridge, tops this list with the largest team on record.

Which city has the most hvac diagnostic software companies?

London leads with 7 headquartered companies, followed by Barnsley (2) and Basingstoke (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 162 verified decision-maker contacts tracked across these 71 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 Smart Search, 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.