Company lists · Data refreshed September 2026

Top 25 Insulation contractors based in the United Kingdom

Name: Insulation contractors based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 1,481 companies tracked

RevenueBase identified 1,481 company matches for insulation contractors associated with the United Kingdom as of September 2026 and tracks 13,698 professional contacts across them, including 4,749 with verified work emails. London is the largest hub.

This list covers company matches for insulation contractors 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 September 17, 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 Sep 17, 2026 How this list was built

1,481Companies

13,698Contacts tracked

4,749Verified emails

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The 25 largest insulation contractors based in the United Kingdom

Ranked by team size

Top 25 of 1,481 company matches for insulation contractors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	SIG PLC	Exact match	Sheffield, United KingdomHQ recorded Sep 17, 2026	5,001-10,000	1,059 contacts →
	Exact match “SIG is a leading pan-European provider of specialist construction and insulation products.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Encon & Nevill Long	Exact match	Wetherby, United KingdomHQ recorded Sep 17, 2026	501-1,000	328 contacts →
	Exact match “Insulation, drywall, ceilings, construction products, external facades, flooring, partitioning, passive fire protection: whatever your project, Encon has the product range…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Darchem Engineering	Exact match	Stillington, United KingdomHQ recorded Sep 17, 2026	501-1,000	317 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Minster	Exact match	Coventry, United KingdomHQ recorded Sep 17, 2026	201-500	214 contacts →
	Exact match “Minster is one of the largest growing national specialist insulation and dry lining distributors in the UK.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Powertherm Contract Services	Exact match	Sheffield, United KingdomHQ recorded Sep 17, 2026	201-500	191 contacts →
	Exact match “Powertherm Contract Services Ltd delivers specialist multidisciplinary industrial services across the UK for the world’s leading organisations.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Shield Services Group	Exact match	Warmley, United KingdomHQ recorded Sep 17, 2026	201-500	182 contacts →
	Exact match “Shield Services Group specialise in the provision of asbestos, insulation, demolition, scaffolding, mechanical & electrical, fire & security and marine services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	CA Group	Exact match	Bishop Auckland, United KingdomHQ recorded Sep 17, 2026	201-500	172 contacts →
	Exact match “CA Group is the UK's largest manufacturer and contractor of built-up building envelope systems.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Galaxy Insulation And DRY Lining Limited	Exact match	Sheffield, United KingdomHQ recorded Sep 17, 2026	201-500	167 contacts →
	Exact match “At Galaxy Insulation & Dry Lining, we’re your nationwide trusted distribution and technical partner.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Instagroup LTD	Exact match	Finchampstead, United KingdomHQ recorded Sep 17, 2026	51-200	104 contacts →
	Exact match “Established in 1980, InstaGroup are a UK leader in the energy efficiency industry, covering commercial and residential projects.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	ISD Solutions	Exact match	Gloucester, United KingdomHQ recorded Sep 17, 2026	51-200	103 contacts →
	Exact match “Founded in 1946, ISD Solutions (a trading division of The P&M Group) has grown to be the UK’s leading contractor in the design, installation and maintenance of composite…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Belgrade Insulations & Drylining	Exact match	Leeds, United KingdomHQ recorded Sep 17, 2026	51-200	79 contacts →
	Exact match “Belgrade Insulation is a privately owned Specialist Distributor of Insulation and Drywall Systems to all sectors of the construction market.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Mcintyre Compliance Services	Exact match	Peterborough, United KingdomHQ recorded Sep 17, 2026	201-500	79 contacts →
	Exact match “McIntyre Compliance Services is a NICEIC, SSAIB, BAFE, BMTRADA approved contractor, carrying out all aspects of electrical works, fire, security and passive fire compliance works…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Rilmac Group	Exact match	Lincoln, United KingdomHQ recorded Sep 17, 2026	201-500	77 contacts →
	Exact match “Founded in 1957, the Lincoln based Rilmac Group today use their vast experience and market expertise as premier providers of Asbestos Removal Services, Scaffolding and Access…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	A&m Insulations A&m Energy Solutions	Exact match	Rainford, United KingdomHQ recorded Sep 17, 2026	51-200	70 contacts →
	Exact match “We are one of the UK's largest providers of insulation services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Next Energy	Exact match	Knowsley, United KingdomHQ recorded Sep 17, 2026	51-200	68 contacts →
	Exact match “Established in 2016, we have grown to become one of the most reputable and reliable specialists within the renewable, heating, and insulation sectors in the United Kingdom.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Tica-Acad	Exact match	Darlington, United KingdomHQ recorded Sep 17, 2026	11-50	67 contacts →
	Exact match “TICA - the Thermal Insulation Contractors Association - was formed in 1959 with the intention of setting and raising standards in the industrial, thermal insulation industry…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Scis Group	Exact match	Fareham, United KingdomHQ recorded Sep 17, 2026	51-200	60 contacts →
	Exact match “Hello.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	GRJ Contracting & Surveying	Exact match	Melton Mowbray, United KingdomHQ recorded Sep 17, 2026	51-200	58 contacts →
	Exact match “At GRJ, our mission is to protect human life and building investments from the threat of fire.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	ARC Building Solutions	Exact match	Leeds, United KingdomHQ recorded Sep 17, 2026	51-200	58 contacts →
	Exact match “At ARC® Building Solutions, protection is our purpose.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Tekgroup	Exact match	Rotherham, United KingdomHQ recorded Sep 17, 2026	51-200	55 contacts →
	Exact match “We specialise in Insulation & Acoustics, Groundworks, Screeds, Render, Underfloor Heating Solutions, Dry Screed, Drylining Solutions, Passive Fire Protection and Fixings &…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Superglass Insulation By Etex	Exact match	Stirling, United KingdomHQ recorded Sep 17, 2026	201-500	55 contacts →
	Exact match “We can offer you thermal and acoustic glass mineral wool products that meet exacting standards together with a service that’s tailored to you.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	MAX Energy LTD	Exact match	Leicester, United KingdomHQ recorded Sep 17, 2026	201-500	53 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Cold Clad LTD	Exact match	Gloucestershire, United KingdomHQ recorded Sep 17, 2026	51-200	51 contacts →
	Exact match “Leading the way in insulated construction"- Work you can trust.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Wetherby Wall Systems	Exact match	Golborne, United KingdomHQ recorded Sep 17, 2026	51-200	50 contacts →
	Exact match “Wetherby Wall Systems Ltd \| Part of ROCKWOOL Group: Your Source for Premium External Wall Insulation and Render Solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	RGM Group	Exact match	Ballyclare, United KingdomHQ recorded Sep 17, 2026	51-200	49 contacts →
	Exact match “RGM Group offers certified and accredited Ductwork, Fire & Smoke, Air Conditioning and Insulation solutions across the UK and Ireland.” Recorded in the RevenueBase company graph · Sep 17, 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 “insulation contractors”. 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 1,481 insulation contractors based in the United Kingdom

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Insulation contractors based in the United Kingdom at a glance

As of Sep 17, 2026

34.7%Verified-email coverage

9.2Average contacts per company

1-10Median size (employees)

6.1%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

741

11-50

567

51-200

112

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 1,481 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 “insulation contractors” 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 4,749 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 September 17, 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 “insulation contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many insulation contractors are there based in the United Kingdom?

RevenueBase identified 1,481 company matches for insulation contractors associated with the United Kingdom as of September 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?

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

Which city has the most insulation contractors?

London leads with 90 company records, followed by Manchester (26) and Glasgow (20).

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 4,749 professional contacts with verified work emails tracked across these 1,481 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 September 17, 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.