Company lists · Data refreshed September 2026

Top 25 Membrane waterproofing manufacturers worldwide

Name: Membrane waterproofing manufacturers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 3,422 companies tracked

RevenueBase identified 3,422 membrane waterproofing manufacturers worldwide as of September 2026 and tracks 42,878 professional contacts across them, including 10,930 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers membrane waterproofing manufacturers worldwide, 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. Country and city lists for membrane waterproofing manufacturers follow the table.

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

3,422Companies

42,878Contacts tracked

10,930Verified emails

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The 25 largest membrane waterproofing manufacturers worldwide

Ranked by team size

Top 25 of 3,422 membrane waterproofing manufacturers worldwide, 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	GAF	Strong evidence	Parsippany, NJ, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,433 contacts →
	Strong evidence “GAF, a Standard Industries company, is the leading roofing and waterproofing manufacturer in North America.” Source: RevenueBase Database · checked Sep 28, 2026
2	IKO North America	Partial evidence	Brampton, ON, CanadaHQ checked Sep 28, 2026	1,001-5,000	1,317 contacts →
	Partial evidence “IKO Roofing is a worldwide leader in the roofing, waterproofing, and insulation industry for residential and commercial markets.” Source: RevenueBase Database · checked Sep 28, 2026
3	GCP	Indirect evidence	Alpharetta, GA, United StatesHQ checked Sep 28, 2026	1,001-5,000	816 contacts →
	Indirect evidence “GCP is a leading global provider of specialty building materials dedicated to safeguarding structures and vital infrastructure from water, weather, fire, and more.” Source: RevenueBase Database · checked Sep 28, 2026
4	Vedacit	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 28, 2026	501-1,000	648 contacts →
	Indirect evidence “Somos a Vedacit, líder no mercado de soluções em impermeabilização e produtos de alta tecnologia para a construção civil.” Source: RevenueBase Database · checked Sep 28, 2026
5	Tremco CPG INC	Strong evidence	Beachwood, OH, United StatesHQ checked Sep 28, 2026	5,001-10,000	643 contacts →
	Strong evidence “Tremco CPG is a manufacturer of roofing materials and services, construction sealants, glazing and gaskets, waterproofing systems, concrete admixtures and sealers, grouts and…” Source: RevenueBase Database · checked Sep 28, 2026
6	Soprema Canada	Indirect evidence	Drummondville, QC, CanadaHQ checked Sep 28, 2026	1,001-5,000	591 contacts →
	Indirect evidence “Depuis 1908, SOPREMA protège les espaces de vie et améliore le bien-être des individus grâce à des solutions durables et innovantes d’étanchéité, d’isolation, de végétalisation et…” Source: RevenueBase Database · checked Sep 28, 2026
7	Etandex	Indirect evidence	Les Ulis Courtaboeuf, FranceHQ checked Sep 28, 2026	501-1,000	587 contacts →
	Indirect evidence “ETANDEX is France’s leading independent specialty construction company Turnover : 64 million Euros in 2013 Employees : 350 Branches : 10 ETANDEX was initially created as a…” Source: RevenueBase Database · checked Sep 28, 2026
8	Soprema USA	Partial evidence	Wadsworth, OH, United StatesHQ checked Sep 28, 2026	201-500	348 contacts →
	Partial evidence “SOPREMA offers a comprehensive line of roofing, waterproofing, wall protection and civil engineering solutions combining superior products and systems with decades of proven…” Source: RevenueBase Database · checked Sep 28, 2026
9	Duro-Last	Partial evidence	Saginaw, MI, United StatesHQ checked Sep 28, 2026	501-1,000	345 contacts →
	Partial evidence “Known as the “World’s Best Roof®”, Duro-Last is the only single-ply manufacturer offering custom-fabrication of the entire roofing system, including custom-fabricated PVC deck…” Source: RevenueBase Database · checked Sep 28, 2026
10	Carlisle Syntec Systems	Partial evidence	Carlisle, PA, United StatesHQ checked Sep 28, 2026	1,001-5,000	302 contacts →
	Partial evidence “Carlisle SynTec, with more than four decades of experience and nine billion square feet of roofing membrane sold, is considered the industry's premier resource for single-ply…” Source: RevenueBase Database · checked Sep 28, 2026
11	Water Seal Company LLC	Partial evidence	Sharjah, United Arab EmiratesHQ checked Sep 28, 2026	1,001-5,000	296 contacts →
	Partial evidence “Water Seal is the number one solution provider for Waterproofing & Insulation Services in UAE.” Source: RevenueBase Database · checked Sep 28, 2026
12	Mc-Bauchemie Brasil	Indirect evidence	Vargem Grande Paulista, BrazilHQ checked Sep 28, 2026	1,001-5,000	287 contacts →
	Indirect evidence “A MC-Bauchemie Brasil, subsidiária do grupo multinacional alemão MC-Bauchemie Müller GmbH, possui mais de 50 anos de atuação, conta com mais de 20 fábricas e 30 centros de…” Source: RevenueBase Database · checked Sep 28, 2026
13	Siplast	Partial evidence	Arkadelphia, AR, United StatesHQ checked Sep 28, 2026	51-200	285 contacts →
	Partial evidence “Siplast is a recognized leader in high-performance commercial roofing, waterproofing, and building enclosure solutions, serving North America for over 50 years.” Source: RevenueBase Database · checked Sep 28, 2026
14	BMI France	Indirect evidence	Bagneux, FranceHQ checked Sep 28, 2026	501-1,000	261 contacts →
	Indirect evidence “BMI France fait partie du Groupe BMI, le plus grand fabricant de solutions de couverture et d’étanchéité pour le toit-terrasse et le toit en pente en Europe.” Source: RevenueBase Database · checked Sep 28, 2026
15	Danosa	Indirect evidence	Fontanar, CubaHQ checked Sep 28, 2026	201-500	251 contacts →
	Indirect evidence “DANOSA fabricante líder en España de láminas asfálticas impermeabilizantes, aislamiento térmico y acústico, drenajes y geotextiles para vivienda y obra civil.” Source: RevenueBase Database · checked Sep 28, 2026
16	Hydronorth S A	Indirect evidence	Cambé, BrazilHQ checked Sep 28, 2026	201-500	249 contacts →
	Indirect evidence “Líder nacional e pioneira do mercado de Resinas Impermeabilizantes, a Hydronorth é especializada na preservação de ambientes e superfícies.” Source: RevenueBase Database · checked Sep 28, 2026
17	Gmaia Construtora	Indirect evidence	Bh, BrazilHQ checked Sep 28, 2026	201-500	233 contacts →
	Indirect evidence “A construtora gmaia é uma empresa do Grupo Priner especializada em impermeabilização, proteção, reforço e recuperação de estruturas.” Source: RevenueBase Database · checked Sep 28, 2026
18	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
19	W. R. Meadows, INC	Indirect evidence	Hampshire, IL, United StatesHQ checked Sep 28, 2026	n/a	208 contacts →
	Indirect evidence “W.” Source: RevenueBase Database · checked Sep 28, 2026
20	Soprema Group	Indirect evidence	Strasbourg, FranceHQ checked Sep 28, 2026	5,001-10,000	201 contacts →
	Indirect evidence “The SOPREMA Group has been developing and diversifying its activities, worldwide, by including, over the years, additional operations to its traditional trade, waterproong.” Source: RevenueBase Database · checked Sep 28, 2026
21	BP Canada	Indirect evidence	Lasalle, QC, CanadaHQ checked Sep 28, 2026	501-1,000	195 contacts →
	Indirect evidence “Building Products of Canada Corp.” Source: RevenueBase Database · checked Sep 28, 2026
22	Ascolite	Partial evidence	Tantithaya Village. Palsana Taluka. Surat., IndiaHQ checked Sep 28, 2026	501-1,000	176 contacts →
	Partial evidence “Ascolite \| Building Materials Innovator Over 14 years delivering walling solutions and waterproofing with expertise and consistency.” Source: RevenueBase Database · checked Sep 28, 2026
23	Soprema Brasil	Indirect evidence	Suzano, BrazilHQ checked Sep 28, 2026	1,001-5,000	175 contacts →
	Indirect evidence “Desde 1908, a SOPREMA desenvolve soluções inovadoras para a construção civil, protegendo ambientes e contribuindo para o bem-estar das pessoas por meio de tecnologias sustentáveis…” Source: RevenueBase Database · checked Sep 28, 2026
24	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
25	Protan AS	Partial evidence	NorwayHQ checked Sep 28, 2026	501-1,000	155 contacts →
	Partial evidence “Protan is a Norwegian owned industry Group, a world leader in construction single ply membrane technology.” 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 3,422 membrane waterproofing manufacturers worldwide

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Membrane waterproofing manufacturers worldwide at a glance

As of Sep 28, 2026

25.5%Verified-email coverage

12.5Average contacts per company

11-50Median size (employees)

1.1%Largest-city concentration · Sao Paulo

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,284

11-50

1,304

51-200

534

201-500

161

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for membrane waterproofing manufacturers are linked below.
What qualifies: Companies worldwide 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.
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, 10,930 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.

Membrane waterproofing manufacturers by location

19 lists · largest first

Every Membrane waterproofing manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 worldwide?

RevenueBase identified 3,422 membrane waterproofing manufacturers worldwide 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?

GAF, headquartered in Parsippany, tops this list with the largest team on record.

Which country has the most membrane waterproofing manufacturers?

The United States leads with 378 companies, followed by India (265) and France (223). Every membrane waterproofing manufacturers list by country and city is linked on this page.

Which city has the most membrane waterproofing manufacturers?

Sao Paulo leads with 38 headquartered companies, followed by Dubai (31) and Pune (25).

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 10,930 verified decision-maker contacts tracked across these 3,422 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.

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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 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.