Company lists · Data refreshed September 2026

Top 25 Thermal insulation products companies based in the United Kingdom

Name: Thermal insulation products 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 22, 2026 548 companies tracked

RevenueBase identified 548 thermal insulation products companies headquartered in the United Kingdom as of September 2026 and tracks 7,894 professional contacts across them, including 3,187 with verified work emails. London is the largest hub.

This list covers thermal insulation products 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 22, 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 22, 2026 86% judged on-target in blind review

548Companies

7,894Contacts tracked

3,187Verified emails

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The 25 largest thermal insulation products companies based in the United Kingdom

Ranked by team size

Top 25 of 548 thermal insulation products companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to thermal insulation products 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	SIG PLC	Strong evidence	Sheffield, United KingdomHQ checked Sep 22, 2026	5,001-10,000	1,059 contacts →
	Strong evidence “SIG is a leading pan-European provider of specialist construction and insulation products.” Source: RevenueBase Database · checked Sep 22, 2026
2	Encon & Nevill Long	Strong evidence	Wetherby, United KingdomHQ checked Sep 22, 2026	501-1,000	328 contacts →
	Strong evidence “Insulation, drywall, ceilings, construction products, external facades, flooring, partitioning, passive fire protection: whatever your project, Encon has the product range…” Source: RevenueBase Database · checked Sep 22, 2026
3	Darchem Engineering	Partial evidence	Stillington, United KingdomHQ checked Sep 22, 2026	501-1,000	317 contacts →
	Partial evidence “Darchem Engineering Limited is a world class Engineering Company providing products and services primarily to meet the needs of its customers for engineered solutions to high…” Source: RevenueBase Database · checked Sep 22, 2026
4	Minster	Partial evidence	Coventry, United KingdomHQ checked Sep 22, 2026	201-500	214 contacts →
	Partial evidence “Minster is one of the largest growing national specialist insulation and dry lining distributors in the UK.” Source: RevenueBase Database · checked Sep 22, 2026
5	Rockwool UK	Indirect evidence	Bridgend, United KingdomHQ checked Sep 22, 2026	501-1,000	178 contacts →
	Indirect evidence “ROCKWOOL Limited is part of the ROCKWOOL Group.” Source: RevenueBase Database · checked Sep 22, 2026
6	IKO PLC UK	Strong evidence	Wigan, United KingdomHQ checked Sep 22, 2026	201-500	165 contacts →
	Strong evidence “For over 100 years, we have been producing some of the industry's most innovative roofing, waterproofing, insulation, and infrastructure solutions.” Source: RevenueBase Database · checked Sep 22, 2026
7	Siderise Group	Indirect evidence	Maesteg, United KingdomHQ checked Sep 22, 2026	201-500	158 contacts →
	Indirect evidence “Siderise is a global expert in the design, manufacture, and supply of high-performance passive fire protection solutions for the building envelope.” Source: RevenueBase Database · checked Sep 22, 2026
8	Belgrade Insulations & Drylining	Partial evidence	Leeds, United KingdomHQ checked Sep 22, 2026	51-200	79 contacts →
	Partial evidence “Belgrade Insulation is a privately owned Specialist Distributor of Insulation and Drywall Systems to all sectors of the construction market.” Source: RevenueBase Database · checked Sep 22, 2026
9	A&m Insulations A&m Energy Solutions	Partial evidence	Rainford, United KingdomHQ checked Sep 22, 2026	51-200	70 contacts →
	Partial evidence “We are one of the UK's largest providers of insulation services.” Source: RevenueBase Database · checked Sep 22, 2026
10	Autins Group PLC	Strong evidence	Rugby, United KingdomHQ checked Sep 22, 2026	51-200	60 contacts →
	Strong evidence “The Autins Group develop and manufacture lightweight thermal, filtration and acoustic insulation materials and components for a range of industries.” Source: RevenueBase Database · checked Sep 22, 2026
11	ARC Building Solutions	Indirect evidence	Leeds, United KingdomHQ checked Sep 22, 2026	51-200	58 contacts →
	Indirect evidence “At ARC® Building Solutions, protection is our purpose.” Source: RevenueBase Database · checked Sep 22, 2026
12	Superglass Insulation By Etex	Strong evidence	Stirling, United KingdomHQ checked Sep 22, 2026	201-500	55 contacts →
	Strong evidence “We can offer you thermal and acoustic glass mineral wool products that meet exacting standards together with a service that’s tailored to you.” Source: RevenueBase Database · checked Sep 22, 2026
13	MAX Energy LTD	Partial evidence	Leicester, United KingdomHQ checked Sep 22, 2026	201-500	53 contacts →
	Partial evidence “Max Energy Ltd is a UK based new build construction company specialising in the sale of insulation to the new build housing sector on a supply and install basis.” Source: RevenueBase Database · checked Sep 22, 2026
14	Wetherby Wall Systems	Partial evidence	Golborne, United KingdomHQ checked Sep 22, 2026	51-200	50 contacts →
	Partial evidence “Wetherby Wall Systems Ltd \| Part of ROCKWOOL Group: Your Source for Premium External Wall Insulation and Render Solutions.” Source: RevenueBase Database · checked Sep 22, 2026
15	Benx Façades	Partial evidence	Stoke On Trent, United KingdomHQ checked Sep 22, 2026	51-200	49 contacts →
	Partial evidence “The Benx Group is a leading provider of products and solutions that enhance, protect and add value to buildings through innovation, technology and practical experience.” Source: RevenueBase Database · checked Sep 22, 2026
16	TLX Insulation	Strong evidence	Bolton, United KingdomHQ checked Sep 22, 2026	11-50	49 contacts →
	Strong evidence “TLX Insulation, a division of TLX Manufacturing, produces multifoil insulation and insulating breathable membranes.” Source: RevenueBase Database · checked Sep 22, 2026
17	Essex Thermal Services LTD	Strong evidence	Dartford, United KingdomHQ checked Sep 22, 2026	51-200	47 contacts →
	Strong evidence “Essex Thermal Services Ltd are a UK based company specialising in Thermal Insulation, Trace Heating, Ventilation and Air Conditioning Installs.” Source: RevenueBase Database · checked Sep 22, 2026
18	Sureserve Energy Services North	Partial evidence	Brighouse, United KingdomHQ checked Sep 22, 2026	1,001-5,000	43 contacts →
	Partial evidence “Sureserve Energy Services North is a leading national installer of insulation, heating solutions and renewable technologies.” Source: RevenueBase Database · checked Sep 22, 2026
19	Avonside Energy	Partial evidence	Rearsby, United KingdomHQ checked Sep 22, 2026	201-500	42 contacts →
	Partial evidence “Avonside Energy: Your Partner in Sustainable Building Solutions At Avonside Energy, we are dedicated to delivering best-in-class services across: New Build Insulation…” Source: RevenueBase Database · checked Sep 22, 2026
20	Kingspan Technical Insulation LTD	Strong evidence	Basildon, United KingdomHQ checked Sep 22, 2026	51-200	40 contacts →
	Strong evidence “We manufacture high performance insulation products for pipework and ductwork in building services / HVAC, process, petrochemical and refrigeration services applications.” Source: RevenueBase Database · checked Sep 22, 2026
21	Homelogic	Indirect evidence	Southampton, United KingdomHQ checked Sep 22, 2026	51-200	38 contacts →
	Indirect evidence “Homelogic®, based in Southampton, Hampshire, are an innovative, forward-thinking company dedicated to bringing eco-friendly, cost effective energy saving solutions to the homes…” Source: RevenueBase Database · checked Sep 22, 2026
22	Pritex LTD	Strong evidence	Wellington, United KingdomHQ checked Sep 22, 2026	51-200	35 contacts →
	Strong evidence “Pritex Ltd, part of Indica Industries Pvt, is a manufacturer of acoustic and thermo-acoustic insulation products for the diverse range of automotive and industrial markets.” Source: RevenueBase Database · checked Sep 22, 2026
23	Soltherm External Insulations	Partial evidence	Milton Keynes, United KingdomHQ checked Sep 22, 2026	11-50	34 contacts →
	Partial evidence “Soltherm are producers of the highest quality EWI system in the world and our mission is to supply these building materials and solutions to the British market.” Source: RevenueBase Database · checked Sep 22, 2026
24	Cellecta LTD	Strong evidence	Rochester, United KingdomHQ checked Sep 22, 2026	51-200	32 contacts →
	Strong evidence “The UK's no.1 manufacturer of eco friendly acoustic treatments and specialist insulation products.” Source: RevenueBase Database · checked Sep 22, 2026
25	Q-Bot LTD	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	32 contacts →
	Indirect evidence “Q-Bot transforms cold, draughty floor voids into warm, efficient and healthier spaces.” Source: RevenueBase Database · checked Sep 22, 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: thermal insulation products 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 thermal insulation products companies.
Partial evidence: Its own public description names part of thermal insulation products companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name thermal insulation products 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 548 thermal insulation products companies based in the United Kingdom

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Thermal insulation products companies based in the United Kingdom at a glance

As of Sep 22, 2026

40.4%Verified-email coverage

14.4Average contacts per company

11-50Median size (employees)

6.2%Largest-city concentration · London

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

237

11-50

216

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 548 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 thermal insulation products 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 “thermal insulation products 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 thermal insulation products 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 thermal insulation products 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, 3,187 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 22, 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.

Thermal insulation products companies by metro

Thermal insulation products companies in London34

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 thermal insulation products 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 thermal insulation products companies are there based in the United Kingdom?

RevenueBase identified 548 thermal insulation products 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?

SIG PLC, headquartered in Sheffield, tops this list with the largest team on record.

Which city has the most thermal insulation products companies?

London leads with 34 headquartered companies, followed by Manchester (12) and Glasgow (9).

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 3,187 verified decision-maker contacts tracked across these 548 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 22, 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.