Company lists · Data refreshed September 2026

Top 25 Fiberglass insulation manufacturers based in the United Kingdom

Name: Fiberglass insulation manufacturers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 79 companies tracked

RevenueBase identified 79 company matches for fiberglass insulation manufacturers associated with the United Kingdom as of September 2026 and tracks 1,729 professional contacts across them, including 912 with verified work emails. London is the largest hub.

This list covers company matches for fiberglass insulation manufacturers 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 30, 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 30, 2026 How this list was built

79Companies

1,729Contacts tracked

912Verified emails

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The 25 largest fiberglass insulation manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 79 company matches for fiberglass insulation manufacturers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 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	Rockwool UK	Exact match	Bridgend, United KingdomHQ recorded Sep 30, 2026	501-1,000	178 contacts →
	Exact match “ROCKWOOL Limited is part of the ROCKWOOL Group.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2	Superglass Insulation By Etex	Exact match	Stirling, United KingdomHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
3	MAX Energy LTD	Exact match	Leicester, United KingdomHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
4	Kingspan Technical Insulation LTD	Exact match	Basildon, United KingdomHQ recorded Sep 30, 2026	51-200	40 contacts →
	Exact match “We manufacture high performance insulation products for pipework and ductwork in building services / HVAC, process, petrochemical and refrigeration services applications.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5	Indinature	Exact match	Jedburgh, United KingdomHQ recorded Sep 30, 2026	11-50	23 contacts →
	Exact match “Natural fibre thermal and acoustic insulation manufacturing specialists also serving wider non-woven markets.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6	Valmiera Glass UK Limited	Exact match	Wickford, United KingdomHQ recorded Sep 30, 2026	11-50	18 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7	AIM	Exact match	Crawley, United KingdomHQ recorded Sep 30, 2026	51-200	14 contacts →
	Exact match “Established in 1989 as an insulation converter.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8	H&v Insulation Supplies Limited	Exact match	Stapleford Abbotts, United KingdomHQ recorded Sep 30, 2026	11-50	9 contacts →
	Exact match “H&V INSULATION SUPPLIES LIMITED is a construction company based out of UNITS1 & 2 THE MITCHELLS GUTTERIDGE LANE, STAPLEFORD ABBOTTS, United Kingdom.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9	Ibsl Group LTD	Exact match	Seaton Delaval, United KingdomHQ recorded Sep 30, 2026	51-200	9 contacts →
	Exact match “IBSL have been established since 1989 as a provider of high performance insulation products.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10	Thermabead LTD	Exact match	Worcester, United KingdomHQ recorded Sep 30, 2026	11-50	7 contacts →
	Exact match “Welcome to ThermaBead!” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11	Concept Conversions LTD	Exact match	Wellingborough, United KingdomHQ recorded Sep 30, 2026	11-50	6 contacts →
	Exact match “Thermal Insulation \| Fire Stopping \| Acoustic Insulation \| Trapezoidal Acoustic Infill \| Cavity Stop Sock \| TCB \| Insulated DPC \| Open State Cavity Barrier \| Rainscreen \| External…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12	Foamtech Limited	Exact match	Birmingham, United KingdomHQ recorded Sep 30, 2026	11-50	6 contacts →
	Exact match “We are an independent distributor and fabricator of thermal insulation products based in the West Midlands with coverage and prompt service across the whole of the UK and Ireland.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13	James Donaldson Insulation Limited	Exact match	Glenrothes, United KingdomHQ recorded Sep 30, 2026	1-10	5 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14	OJM Insulations LTD	Exact match	South Woodham Ferrers, United KingdomHQ recorded Sep 30, 2026	11-50	5 contacts →
	Exact match “OJM Insulations supply and install insulation to pipework and ductwork from all the leading manufacturers.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15	Trade Insulations LTD	Exact match	London, United KingdomHQ recorded Sep 30, 2026	1-10	5 contacts →
	Exact match “At Trade Insulations Ltd, we supply high quality insulation at low trade prices.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16	Coverock Insulation	Exact match	London, United KingdomHQ recorded Sep 30, 2026	11-50	4 contacts →
	Exact match “Coverock Insulation - Provider of Fire-Resistant Mineral Wool for Superior Thermal and Acoustic Performance in the UK market.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17	Remflex Insulation Covers	Exact match	Ilkeston, United KingdomHQ recorded Sep 30, 2026	11-50	4 contacts →
	Exact match “National manufacturer and supplier of insulated covers” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18	IPP LTD	Exact match	Southminster, United KingdomHQ recorded Sep 30, 2026	11-50	4 contacts →
	Exact match “Company manufactures Multi Foil, Sheep's Wool & Hemp, Natural insulation.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19	MDL Insulations LTD	Exact match	Burntwood, United KingdomHQ recorded Sep 30, 2026	11-50	4 contacts →
	Exact match “MDL Insulations Ltd are trade fabricators and converters of bespoke acoustic, fire and thermal insulation solutions for the construction and OEM markets available through our…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20	PMP Manufacturing LTD	Exact match	West Thurrock, United KingdomHQ recorded Sep 30, 2026	1-10	4 contacts →
	Exact match “At PMP Manufacturing Ltd we utilise the most advanced insulation materials to provide insulation systems for the industrial market.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21	Carefree Insulations LTD	Exact match	Egham, United KingdomHQ recorded Sep 30, 2026	1-10	3 contacts →
	Exact match “Welcome to Carefree Insulations Ltd, your trusted partner in thermal insulation solutions for the HVAC sector.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22	Johnsons Insulation Supplies Burgess Hill	Exact match	Burgess Hill, United KingdomHQ recorded Sep 30, 2026	11-50	3 contacts →
	Exact match “Insulation & fire protection materials cut to size.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23	Corepro Systems Limited	Exact match	Paignton, United KingdomHQ recorded Sep 30, 2026	1-10	2 contacts →
	Exact match “With 35 years' experience in the thermal insulation industry in the UK and overseas CorePro Systems offers its clients an independent choice of thermal insulation products and…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24	Owens Corning Foamglas UK	Exact match	London, United KingdomHQ recorded Sep 30, 2026	201-500	1 contacts →
	Exact match “Protect what matters most.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25	Low-E Insulation UK & EU	Exact match	Liverpool, United KingdomHQ recorded Sep 30, 2026	1-10	1 contacts →
	Exact match “Low-E Reflective Insulation is a well-established, driven and innovative company.” Recorded in the RevenueBase company graph · Sep 30, 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 “fiberglass insulation manufacturers”. 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 79 fiberglass insulation manufacturers based in the United Kingdom

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Fiberglass insulation manufacturers based in the United Kingdom at a glance

As of Sep 30, 2026

52.7%Verified-email coverage

21.9Average contacts per company

1-10Median size (employees)

6.3%Largest-city concentration · London

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 79 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 “fiberglass insulation manufacturers” 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 912 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 30, 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 “fiberglass insulation manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many fiberglass insulation manufacturers are there based in the United Kingdom?

RevenueBase identified 79 company matches for fiberglass insulation manufacturers 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?

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

Which city has the most fiberglass insulation manufacturers?

London leads with 5 company records, followed by Birmingham (2) and Leicester (2).

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 912 professional contacts with verified work emails tracked across these 79 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 30, 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.