Company lists · Data refreshed October 2026

Top 25 Fire resistant & retardant insulation suppliers based in the United Kingdom

Name: Fire resistant & retardant insulation suppliers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 25, 2026 382 companies tracked

RevenueBase identified 382 company matches for fire resistant & retardant insulation suppliers associated with the United Kingdom as of October 2026 and tracks 4,033 professional contacts across them, including 1,746 with verified work emails. London is the largest hub.

This list covers company matches for fire resistant & retardant insulation suppliers 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 October 25, 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 Oct 25, 2026 How this list was built

382Companies

4,033Contacts tracked

1,746Verified emails

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The 25 largest fire resistant & retardant insulation suppliers based in the United Kingdom

Ranked by team size

Top 25 of 382 company matches for fire resistant & retardant insulation suppliers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 25, 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 Oct 25, 2026	501-1,000	331 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 · Oct 25, 2026 · View company records in RevenueBase
2	Siderise Group	Exact match	Maesteg, United KingdomHQ recorded Oct 25, 2026	201-500	165 contacts →
	Exact match “Siderise is a global expert in the design, manufacture, and supply of high-performance passive fire protection solutions for the building envelope.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
3	CLM Fireproofing	Exact match	London, United KingdomHQ recorded Oct 25, 2026	51-200	97 contacts →
	Exact match “Founded 36 years ago, CLM Fireproofing are industry-leading experts in passive fire protection and fire stopping.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
4	Tenmat	Exact match	Irlam, United KingdomHQ recorded Oct 25, 2026	201-500	91 contacts →
	Exact match “With a history spanning more than a century, Tenmat stands as one of the UK’s longest‑established leaders in passive fire protection.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
5	Belgrade Insulations & Drylining	Exact match	Leeds, United KingdomHQ recorded Oct 25, 2026	51-200	74 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 · Oct 25, 2026 · View company records in RevenueBase
6	A&m Insulations A&m Energy Solutions	Exact match	Rainford, United KingdomHQ recorded Oct 25, 2026	51-200	69 contacts →
	Exact match “We are one of the UK's largest providers of insulation services.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
7	ARC Building Solutions	Exact match	Leeds, United KingdomHQ recorded Oct 25, 2026	51-200	63 contacts →
	Exact match “At ARC® Building Solutions, protection is our purpose.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
8	MAX Energy LTD	Exact match	Leicester, United KingdomHQ recorded Oct 25, 2026	201-500	58 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 · Oct 25, 2026 · View company records in RevenueBase
9	Superglass Insulation By Etex	Exact match	Stirling, United KingdomHQ recorded Oct 25, 2026	201-500	58 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 · Oct 25, 2026 · View company records in RevenueBase
10	Kingspan Technical Insulation LTD	Exact match	Basildon, United KingdomHQ recorded Oct 25, 2026	51-200	44 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 · Oct 25, 2026 · View company records in RevenueBase
11	Homelogic	Exact match	Southampton, United KingdomHQ recorded Oct 25, 2026	51-200	38 contacts →
	Exact match “Homelogic®, based in Southampton, Hampshire, are an innovative, forward-thinking company dedicated to bringing eco-friendly, cost effective energy saving solutions to the homes…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
12	Sharpfibre	Exact match	Basildon, United KingdomHQ recorded Oct 25, 2026	11-50	37 contacts →
	Exact match “Sharpfibre is the UK’s leading specialist fire protection contractor providing passive fire protection systems and life safety solutions.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
13	Fire Protection LTD	Exact match	Harlow, United KingdomHQ recorded Oct 25, 2026	51-200	36 contacts →
	Exact match “Fire Protection markets the Flamebar range of passive fire resisting products, including the innovative Flamebar BW11 and BW18 fire resisting ductwork systems.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
14	Isoclad	Exact match	North Shields, United KingdomHQ recorded Oct 25, 2026	51-200	31 contacts →
	Exact match “We focus on making reliable panels and supporting you at every stage.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
15	Pyrotect LTD	Exact match	Ashby De La Zouch, United KingdomHQ recorded Oct 25, 2026	11-50	30 contacts →
	Exact match “Pyrotect - Accredited Passive Fire Protection since 1998 Do you need help with Passive Fire Protection on your project?” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
16	Actis Insulation	Exact match	Chippenham, United KingdomHQ recorded Oct 25, 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 · Oct 25, 2026 · View company records in RevenueBase
17	Fire Integrity Limited	Exact match	London, United KingdomHQ recorded Oct 25, 2026	51-200	23 contacts →
	Exact match “Fire Integrity Ltd: Pioneering Passive Fire Protection Since 2005: At Fire Integrity, we see every building not just as a structure, but as a space teeming with life, deserving…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
18	MGN Fire Protection LTD	Exact match	Cramlington, United KingdomHQ recorded Oct 25, 2026	51-200	19 contacts →
	Exact match “MGN Fire Protection Limited has been providing passive fire protection services nationwide for the past 25 years.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
19	Seymour Manufacturing International SMI	Exact match	Telford, United KingdomHQ recorded Oct 25, 2026	11-50	19 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 · Oct 25, 2026 · View company records in RevenueBase
20	K&g Distribution LTD	Exact match	Knowsley Industrial Park, United KingdomHQ recorded Oct 25, 2026	11-50	18 contacts →
	Exact match “K&G Distribution Ltd is a specialist stockist and distributor of thermal, fire, acoustic insulation and associated products for use in HVAC, Marine/Offshore, Petrochem, Powergen…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
21	Insulcon Technical	Exact match	North Shields, United KingdomHQ recorded Oct 25, 2026	11-50	18 contacts →
	Exact match “Insulcon Technical offer innovative Passive Fire Protection and Technical Insulation systems as well as metallic and non-metallic cladding solutions providing extensive savings in…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
22	PFC Corofil	Exact match	Chessington, United KingdomHQ recorded Oct 25, 2026	11-50	18 contacts →
	Exact match “PFC Corofil is one of the UK's leading manufacturers of passive fire protection products.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
23	GSI Contract Services Limited	Exact match	Little Chalfont, United KingdomHQ recorded Oct 25, 2026	51-200	16 contacts →
	Exact match “GSI Contract Services are building passive fire protection specialists.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
24	Fire Shield Limited	Exact match	Ewhurst, United KingdomHQ recorded Oct 25, 2026	51-200	16 contacts →
	Exact match “For over 30 years Fire Shield has been at the forefront of the built-in Fire Protection industry.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
25	AIM	Exact match	Crawley, United KingdomHQ recorded Oct 25, 2026	51-200	16 contacts →
	Exact match “Established in 1989 as an insulation converter.” Recorded in the RevenueBase company graph · Oct 25, 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 “fire resistant & retardant insulation suppliers”. 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 382 fire resistant & retardant insulation suppliers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,746 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Fire resistant & retardant insulation suppliers based in the United Kingdom at a glance

As of Oct 25, 2026

43.3%Verified-email coverage

10.6Average contacts per company

11-50Median size (employees)

9.2%Largest-city concentration · London

Oct 25, 2026Page data refreshed

Companies by employee count

1-10

176

11-50

150

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 382 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 “fire resistant & retardant insulation suppliers” 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 1,746 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 October 25, 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.

Fire resistant & retardant insulation suppliers by metro

Fire resistant & retardant insulation suppliers in London35

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 “fire resistant & retardant insulation suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many fire resistant & retardant insulation suppliers are there based in the United Kingdom?

RevenueBase identified 382 company matches for fire resistant & retardant insulation suppliers associated with the United Kingdom as of October 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 fire resistant & retardant insulation suppliers?

London leads with 35 company records, followed by Basildon (6) and Nottingham (6).

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 1,746 professional contacts with verified work emails tracked across these 382 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 October 25, 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.