Company lists · Data refreshed September 2026

Top 25 Membrane waterproofing manufacturers based in the United Kingdom

Name: Membrane waterproofing 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 28, 2026 159 companies tracked

RevenueBase identified 159 membrane waterproofing manufacturers headquartered in the United Kingdom as of September 2026 and tracks 2,241 professional contacts across them, including 910 with verified work emails. London is the largest hub.

This list covers membrane waterproofing manufacturers 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 28, 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 28, 2026 86% judged on-target in blind review

159Companies

2,241Contacts tracked

910Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest membrane waterproofing manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 159 membrane waterproofing manufacturers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to membrane waterproofing manufacturers: 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	Bauder Flat Roofs	Strong evidence	Ipswich, United KingdomHQ checked Sep 28, 2026	201-500	231 contacts →
	Strong evidence “Bauder is a manufacturer and supplier of flat roof waterproofing systems, which are complemented by high quality green roof and PV solutions.” Source: RevenueBase Database · checked Sep 28, 2026
2	IKO PLC UK	Partial evidence	Wigan, United KingdomHQ checked Sep 28, 2026	201-500	165 contacts →
	Partial 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 28, 2026
3	Langley	Indirect evidence	Daventry, United KingdomHQ checked Sep 28, 2026	51-200	115 contacts →
	Indirect evidence “At Langley, our vision is to provide innovative roofscape solutions that have a lasting, positive impact on people, places, products and our planet.” Source: RevenueBase Database · checked Sep 28, 2026
4	USL Group	Indirect evidence	Washington, United KingdomHQ checked Sep 28, 2026	201-500	96 contacts →
	Indirect evidence “The USL Group of companies are market leaders in the provision of specialist civil engineering and construction solutions for virtually any type of new build or refurbishment…” Source: RevenueBase Database · checked Sep 28, 2026
5	Soprema UK	Indirect evidence	Witham, United KingdomHQ checked Sep 28, 2026	5,001-10,000	82 contacts →
	Indirect evidence “SOPREMA has been an independent family group since it was founded in 1908.” Source: RevenueBase Database · checked Sep 28, 2026
6	BMI Icopal	Strong evidence	Milton Keynes, United KingdomHQ checked Sep 28, 2026	1,001-5,000	76 contacts →
	Strong evidence “Specify, manufacture and supply industry-leading waterproofing systems and building protection for over 160 years.” Source: RevenueBase Database · checked Sep 28, 2026
7	Alumasc Roofing	Indirect evidence	St Helens, United KingdomHQ checked Sep 28, 2026	51-200	62 contacts →
	Indirect evidence “Our aim is to provide quality sustainable building solutions which give long-term peace of mind, supported by our technical expertise and comprehensive range of single source…” Source: RevenueBase Database · checked Sep 28, 2026
8	A.Proctor Group LTD	Indirect evidence	Blairgowrie, United KingdomHQ checked Sep 28, 2026	51-200	58 contacts →
	Indirect evidence “A.” Source: RevenueBase Database · checked Sep 28, 2026
9	Triflex UK LTD	Indirect evidence	Stone, United KingdomHQ checked Sep 28, 2026	11-50	44 contacts →
	Indirect evidence “Triflex is the leading European specialist in cold liquid applied resins.” Source: RevenueBase Database · checked Sep 28, 2026
10	Radmat Building Products LTD	Strong evidence	Market Harborough, United KingdomHQ checked Sep 28, 2026	11-50	44 contacts →
	Strong evidence “Radmat is an independent British company specialising in the manufacture and supply of high performance roof waterproofing systems and components.” Source: RevenueBase Database · checked Sep 28, 2026
11	Roofline Group	Indirect evidence	Waterlooville, United KingdomHQ checked Sep 28, 2026	51-200	44 contacts →
	Indirect evidence “Construction News Specialist Contractor of the Year 2026.” Source: RevenueBase Database · checked Sep 28, 2026
12	Proteus Waterproofing	Partial evidence	Rayleigh, United KingdomHQ checked Sep 28, 2026	11-50	37 contacts →
	Partial evidence “Proteus Waterproofing is the one-stop-solution provider for a total waterproofing and protection package.” Source: RevenueBase Database · checked Sep 28, 2026
13	Effisus	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	36 contacts →
	Indirect evidence “Effisus is a leading provider of innovative solutions that seamlessly blend Efficiency and Sustainability, delivering integrated systems with superior quality and high added value.” Source: RevenueBase Database · checked Sep 28, 2026
14	Premcrete LTD	Strong evidence	Andover, United KingdomHQ checked Sep 28, 2026	11-50	36 contacts →
	Strong evidence “Premcrete is the leading British manufacturer of pre-applied waterproofing, ground heave mitigation and gas protection systems.” Source: RevenueBase Database · checked Sep 28, 2026
15	Polyroof	Indirect evidence	Flint, United KingdomHQ checked Sep 28, 2026	51-200	35 contacts →
	Indirect evidence “For over 40 years, Polyroof has been developing and manufacturing cold-applied liquid roofing systems that continue to set the standard for waterproof performance.” Source: RevenueBase Database · checked Sep 28, 2026
16	Vebro Polymers	Partial evidence	Manchester, United KingdomHQ checked Sep 28, 2026	11-50	34 contacts →
	Partial evidence “Vebro Polymers is a global manufacturer and supplier of specialist polymer-based flooring materials, pump-applied levelling screeds, rapid-drying screed additives and car park…” Source: RevenueBase Database · checked Sep 28, 2026
17	Wykamol-Mapei Waterproofing Solutions	Strong evidence	Burnley, United KingdomHQ checked Sep 28, 2026	51-200	32 contacts →
	Strong evidence “Mapei, a world leader in construction chemicals, has strengthened its presence in the UK by acquiring the local manufacturer Wykamol through Mapei UK to expand its waterproofing…” Source: RevenueBase Database · checked Sep 28, 2026
18	Newton Waterproofing Systems	Indirect evidence	Tonbridge, United KingdomHQ checked Sep 28, 2026	11-50	29 contacts →
	Indirect evidence “Welcome to Newton.” Source: RevenueBase Database · checked Sep 28, 2026
19	Pudlo Products Limited	Partial evidence	Cambridgeshire, United KingdomHQ checked Sep 28, 2026	11-50	28 contacts →
	Partial evidence “PUDLO offers waterproofing and gasproofing solutions that stand the test of time.” Source: RevenueBase Database · checked Sep 28, 2026
20	Flex-R	Indirect evidence	High Wycombe, United KingdomHQ checked Sep 28, 2026	11-50	25 contacts →
	Indirect evidence “Flex-R is a leading supplier of professional flat roofing systems across the UK.” Source: RevenueBase Database · checked Sep 28, 2026
21	Centaur Technologies Limited	Indirect evidence	Preston, United KingdomHQ checked Sep 28, 2026	11-50	25 contacts →
	Indirect evidence “Centaur Technologies Limited is a British Owned and managed specialist roofing company, focused on the development and supply of leading edge liquid roofing systems.” Source: RevenueBase Database · checked Sep 28, 2026
22	Danosa UK	Strong evidence	Havant, United KingdomHQ checked Sep 28, 2026	11-50	24 contacts →
	Strong evidence “DANOSA UK Ltd is one of the UK’s leading suppliers of construction products and waterproofing solutions including: Bituminous Membranes, Synthetic PVC Single Ply Membranes…” Source: RevenueBase Database · checked Sep 28, 2026
23	Stirling Lloyd Polychem LTD	Partial evidence	Cheshire, United KingdomHQ checked Sep 28, 2026	51-200	23 contacts →
	Partial evidence “Established over 40 years ago, we pioneered the use of cold, spray applied waterproofing systems.” Source: RevenueBase Database · checked Sep 28, 2026
24	Visqueen	Strong evidence	Heanor, United KingdomHQ checked Sep 28, 2026	201-500	21 contacts →
	Strong evidence “Visqueen is the market leader in the manufacture and supply of structural waterproofing and gas protection systems.” Source: RevenueBase Database · checked Sep 28, 2026
25	TOR Coatings Limited	Indirect evidence	Chester-Le-Street, United KingdomHQ checked Sep 28, 2026	51-200	21 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 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: membrane waterproofing manufacturers. 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 membrane waterproofing manufacturers.
Partial evidence: Its own public description names part of membrane waterproofing manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name membrane waterproofing manufacturers. 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 159 membrane waterproofing manufacturers based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 910 reachable decision-makers.

Free signup · no credit card

View the full list →

Membrane waterproofing manufacturers based in the United Kingdom at a glance

As of Sep 28, 2026

40.6%Verified-email coverage

14.1Average contacts per company

11-50Median size (employees)

6.9%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

5,001-10,000

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 159 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 membrane waterproofing manufacturers, 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 “membrane waterproofing manufacturers”. 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 membrane waterproofing manufacturers), 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 membrane waterproofing manufacturers, 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, 910 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 28, 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.

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 membrane waterproofing manufacturers, 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 membrane waterproofing manufacturers are there based in the United Kingdom?

RevenueBase identified 159 membrane waterproofing manufacturers 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?

Bauder Flat Roofs, headquartered in Ipswich, tops this list with the largest team on record.

Which city has the most membrane waterproofing manufacturers?

London leads with 11 headquartered companies, followed by Manchester (4) and Knutsford (3).

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 910 verified decision-maker contacts tracked across these 159 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 159 membrane waterproofing manufacturers based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Membrane waterproofing manufacturers by geography

Browse the directory

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.