Company lists · Data refreshed September 2026

Top 25 Cellulose fiber insulation manufacturers based in the United Kingdom

Name: Cellulose fiber 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 100 companies tracked

RevenueBase identified 100 company matches for cellulose fiber insulation manufacturers associated with the United Kingdom as of September 2026 and tracks 2,437 professional contacts across them, including 1,166 with verified work emails. London is the largest hub.

This list covers company matches for cellulose fiber 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

100Companies

2,437Contacts tracked

1,166Verified emails

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The 25 largest cellulose fiber insulation manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 100 company matches for cellulose fiber 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	Encon & Nevill Long	Exact match	Wetherby, United KingdomHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
2	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
3	Excel Industries	Exact match	Gwent, United KingdomHQ recorded Sep 30, 2026	11-50	106 contacts →
	Exact match “Excel Fibre Technology has mastered a manufacturing process which takes waste paper and converts it into cellulose fibre for numerous applications and industries including Warmcel…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4	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
5	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
6	TLX Insulation	Exact match	Bolton, United KingdomHQ recorded Sep 30, 2026	11-50	49 contacts →
	Exact match “TLX Insulation, a division of TLX Manufacturing, produces multifoil insulation and insulating breathable membranes.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7	Cellecta LTD	Exact match	Rochester, United KingdomHQ recorded Sep 30, 2026	51-200	32 contacts →
	Exact match “The UK's no.1 manufacturer of eco friendly acoustic treatments and specialist insulation products.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8	Actis Insulation	Exact match	Chippenham, United KingdomHQ recorded Sep 30, 2026	11-50	28 contacts →
	Exact match “ACTIS is an innovative European insulation specialist whose vision is to develop effective and environmentally friendly ways of reducing energy consumption.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9	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
10	Polyfoam XPS	Exact match	Hartlepool, United KingdomHQ recorded Sep 30, 2026	11-50	21 contacts →
	Exact match “Polyfoam XPS Ltd is a leading manufacturer of closed cell, extruded polystyrene insulation.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11	Seymour Manufacturing International SMI	Exact match	Telford, United KingdomHQ recorded Sep 30, 2026	11-50	18 contacts →
	Exact match “Thermal protection perfection - we're the inventors of the acclaimed Tempro, the remarkable lightweight thermal insulation material which has been scientifically proven to cut…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12	Davant A Trading Division Of Linthwaite LTD	Exact match	Ledbury, United KingdomHQ recorded Sep 30, 2026	51-200	15 contacts →
	Exact match “DAVANT was established in 1989 by David Merrick who started the business working out of a portacabin on a farm in rural Herefordshire selling pipe insulation into plumber’s…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13	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
14	Wray-Tech Supplies LTD	Exact match	Galleywood, United KingdomHQ recorded Sep 30, 2026	11-50	13 contacts →
	Exact match “Innovative Insulation Solutions with Comprehensive Technical Support: Wray-tech specialises in Fire Protection, Acoustic materials, Thermal solutions, Drylining, and External…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15	SIG UK	Exact match	Sheffield, United KingdomHQ recorded Sep 30, 2026	1,001-5,000	13 contacts →
	Exact match “SIG UK is one of the leading distributors of specialist building materials (specialist insulation, roofing materials, and sustainable building products); we are known for our…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16	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
17	Custom Insulation Limited	Exact match	Burton On Trent, United KingdomHQ recorded Sep 30, 2026	11-50	9 contacts →
	Exact match “The UK’s Strongest Independent Technically Competent Service Provider of Acoustic, Thermal & Fire Retardant Insulation Solutions.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18	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
19	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
20	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
21	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
22	Quietstone UK LTD	Exact match	Pott Shrigley, United KingdomHQ recorded Sep 30, 2026	1-10	6 contacts →
	Exact match “QUIETSTONE UK LTD manufacturers of building materials for noise reduction, sound proofing, acoustic and fire insulation, innovative acoustic solutions and bespoke sound absorption…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23	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
24	Boulder Developments Limited	Exact match	Lincoln, United KingdomHQ recorded Sep 30, 2026	11-50	5 contacts →
	Exact match “Boulder Developments Ltd are an experienced international manufacturer and distributor based in the UK.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25	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

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 “cellulose fiber 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 100 cellulose fiber insulation manufacturers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,166 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cellulose fiber insulation manufacturers based in the United Kingdom at a glance

As of Sep 30, 2026

47.8%Verified-email coverage

24.4Average contacts per company

11-50Median size (employees)

6.0%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 100 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 “cellulose fiber 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 1,166 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 “cellulose fiber insulation manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 100 company matches for cellulose fiber 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?

Encon & Nevill Long tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most cellulose fiber insulation manufacturers?

London leads with 6 company records, followed by Bolton (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 1,166 professional contacts with verified work emails tracked across these 100 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.