Company lists · Data refreshed September 2026

Top 25 Hvac design software companies based in the United Kingdom

Name: Hvac design 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 163 companies tracked

RevenueBase identified 163 hvac design software companies headquartered in the United Kingdom as of September 2026 and tracks 2,579 professional contacts across them, including 1,069 with verified work emails. London is the largest hub.

This list covers hvac design 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

163Companies

2,579Contacts tracked

1,069Verified emails

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

Ranked by team size

Top 25 of 163 hvac design 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 design 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	Colt International	Indirect evidence	Petersfield, United KingdomHQ checked Sep 28, 2026	1,001-5,000	505 contacts →
	Indirect evidence “Since 1931 we have been harnessing the natural elements to provide healthy, comfortable and safe working and living conditions in buildings.” Source: RevenueBase Database · checked Sep 28, 2026
2	IES LTD	Partial evidence	Glasgow, United KingdomHQ checked Sep 28, 2026	201-500	374 contacts →
	Partial evidence “IES is an innovative company at the forefront of the development and application of powerful software simulation tools and consulting services for architects, engineers and others…” Source: RevenueBase Database · checked Sep 28, 2026
3	Star Refrigeration	Indirect evidence	Glasgow, United KingdomHQ checked Sep 28, 2026	201-500	298 contacts →
	Indirect evidence “Star Refrigeration is a globally diversified cooling, heating, freezing, mechanical and electrical group of companies.” Source: RevenueBase Database · checked Sep 28, 2026
4	Grayson Thermal Systems	Indirect evidence	Tyseley, United KingdomHQ checked Sep 28, 2026	201-500	153 contacts →
	Indirect evidence “Imagine what’s possible… That’s the question that drives us to push the boundaries of thermal management – delivering the highest levels of performance, efficiency, and…” Source: RevenueBase Database · checked Sep 28, 2026
5	Daikin Applied UK LTD	Partial evidence	Cramlington, United KingdomHQ checked Sep 28, 2026	51-200	97 contacts →
	Partial evidence “Daikin Applied (UK) Ltd (formerly McQuay UK Ltd) is the market leader in energy-efficient end-to-end HVAC solutions, including AHU and chiller products, heat pumps, service and…” Source: RevenueBase Database · checked Sep 28, 2026
6	Wozair Limited	Strong evidence	Gillingham, United KingdomHQ checked Sep 28, 2026	51-200	79 contacts →
	Strong evidence “Wozair specialises in the design and manufacture of high integrity heating, ventilating and air conditioning (HVAC) equipment for offshore oil and gas, nuclear, marine…” Source: RevenueBase Database · checked Sep 28, 2026
7	Powrmatic Limited	Partial evidence	Ilminster, United KingdomHQ checked Sep 28, 2026	51-200	73 contacts →
	Partial evidence “Powrmatic is a leading manufacturer and solution provider of advanced HVAC systems, including warm air heating, radiant heating, electric and water-based systems, as well as…” Source: RevenueBase Database · checked Sep 28, 2026
8	Mitsubishi Heavy Industries Air-Conditioning Europe	Partial evidence	Uxbridge, United KingdomHQ checked Sep 28, 2026	51-200	50 contacts →
	Partial evidence “Welcome to Mitsubishi Heavy Industries Air Conditioning Europe Ltd (MHIAE), a company created by MHI for all HVAC solutions across Europe.” Source: RevenueBase Database · checked Sep 28, 2026
9	AET Flexible Space	Indirect evidence	East Grinstead, United KingdomHQ checked Sep 28, 2026	11-50	43 contacts →
	Indirect evidence “AET Flexible Space has been redefining how buildings breathe since 1993.” Source: RevenueBase Database · checked Sep 28, 2026
10	Principal Hvac	Partial evidence	Belfast, United KingdomHQ checked Sep 28, 2026	51-200	34 contacts →
	Partial evidence “Principal HVAC are at the leading edge of Heating, Ventilation & Air conditioning systems for commercial and residential property.” Source: RevenueBase Database · checked Sep 28, 2026
11	Designbuilder Software	Strong evidence	Stroud, United KingdomHQ checked Sep 28, 2026	11-50	31 contacts →
	Strong evidence “DesignBuilder is a state-of-the-art software tool for checking building energy, carbon, lighting and comfort performance.” Source: RevenueBase Database · checked Sep 28, 2026
12	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
13	Robell Control Systems Limited	Partial evidence	Birmingham, United KingdomHQ checked Sep 28, 2026	11-50	27 contacts →
	Partial evidence “Robell Control Systems Limited established in 1989, we are privately owned independent company and are leading independent specialists for design, installation, commissioning and…” Source: RevenueBase Database · checked Sep 28, 2026
14	Jaga UK	Indirect evidence	Ledbury, United KingdomHQ checked Sep 28, 2026	11-50	24 contacts →
	Indirect evidence “Ensuring a better indoor climate without damaging the outdoor climate.” Source: RevenueBase Database · checked Sep 28, 2026
15	HVAC	Partial evidence	Moreton-on-lugg, United KingdomHQ checked Sep 28, 2026	201-500	23 contacts →
	Partial evidence “FläktGroup UK specialise in #hvac systems and #hvacservice we offer a range of products which include #AirHandling Units #CRAC #DataCenter cooling #firesafety #fans #airpurifier…” Source: RevenueBase Database · checked Sep 28, 2026
16	PCB Technical Solutions LTD	Partial evidence	High Wycombe, United KingdomHQ checked Sep 28, 2026	11-50	22 contacts →
	Partial evidence “At PCB, we specialise in retail HVAC and mechanical projects.” Source: RevenueBase Database · checked Sep 28, 2026
17	Essco Group	Partial evidence	Southampton, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Partial evidence “Essco design and supply energy efficient products and systems to the heating, ventilating, air conditioning and process industries.” Source: RevenueBase Database · checked Sep 28, 2026
18	Flite Software NI LTD	Partial evidence	Derry, United KingdomHQ checked Sep 28, 2026	11-50	19 contacts →
	Partial evidence “Since it's formation in 1984, Flite Software Ltd, has been recognised world wide as a quality supplier of engineering application and selection software products.” Source: RevenueBase Database · checked Sep 28, 2026
19	Exi-Tite LTD	Indirect evidence	Ballygawley, United KingdomHQ checked Sep 28, 2026	1-10	17 contacts →
	Indirect evidence “Welcome to our company.” Source: RevenueBase Database · checked Sep 28, 2026
20	Heatworks LTD	Indirect evidence	Gomersal, United KingdomHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “Heatworks has been delivering air-conditioning, heating, ventilation, process cooling and water services solutions across all industry sectors for over 25 years.” Source: RevenueBase Database · checked Sep 28, 2026
21	Dynamic Climate Limited	Partial evidence	Cowfold, United KingdomHQ checked Sep 28, 2026	11-50	15 contacts →
	Partial evidence “Dynamic Climate is fortunate enough to work with two market leading, innovative and high quality manufactures of HVAC products.” Source: RevenueBase Database · checked Sep 28, 2026
22	Thermoplant Offshore Services Limited	Partial evidence	Kingston Upon Hull, United KingdomHQ checked Sep 28, 2026	51-200	15 contacts →
	Partial evidence “Specialists in the Design and Manufacture of high quality Heating, Ventilation and Air Conditioning/Refrigeration Systems for the Onshore and Offshore Petrochemical Industries and…” Source: RevenueBase Database · checked Sep 28, 2026
23	Computair LTD	Strong evidence	Toddington, United KingdomHQ checked Sep 28, 2026	11-50	14 contacts →
	Strong 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
24	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
25	AIR Options LTD	Partial evidence	Witham, United KingdomHQ checked Sep 28, 2026	11-50	13 contacts →
	Partial 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

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 design 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 design software companies.
Partial evidence: Its own public description names part of hvac design 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 design 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 163 hvac design software companies based in the United Kingdom

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

As of Sep 28, 2026

41.5%Verified-email coverage

15.8Average contacts per company

11-50Median size (employees)

11.7%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

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 163 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 design 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 design 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 design 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 design 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, 1,069 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 design 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 design software companies are there based in the United Kingdom?

RevenueBase identified 163 hvac design 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?

Colt International, headquartered in Petersfield, tops this list with the largest team on record.

Which city has the most hvac design software companies?

London leads with 19 headquartered companies, followed by Birmingham (4) and Glasgow (4).

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 1,069 verified decision-maker contacts tracked across these 163 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.