Company lists · Data refreshed September 2026

Top 25 Roofing membrane manufacturers worldwide

Name: Roofing membrane manufacturers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 5,137 companies tracked

RevenueBase identified 5,137 roofing membrane manufacturers worldwide as of September 2026 and tracks 74,588 professional contacts across them, including 21,485 with verified work emails. The United States is the largest market and Istanbul the largest hub.

This list covers roofing membrane 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 30, 2026. Country and city lists for roofing membrane 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 30, 2026 86% judged on-target in blind review

5,137Companies

74,588Contacts tracked

21,485Verified emails

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The 25 largest roofing membrane manufacturers worldwide

Ranked by team size

Top 25 of 5,137 roofing membrane manufacturers worldwide, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to roofing membrane 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 30, 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 30, 2026
2	Johns Manville	Strong evidence	Denver, CO, United StatesHQ checked Sep 30, 2026	5,001-10,000	2,811 contacts →
	Strong evidence “At Johns Manville, we build on decades of experience to manufacture commercial roofing, premium-quality insulation and a variety of engineered products for our customers.” Source: RevenueBase Database · checked Sep 30, 2026
3	BMI Group	Indirect evidence	Reading, United KingdomHQ checked Sep 30, 2026	5,001-10,000	2,448 contacts →
	Indirect evidence “BMI Group was born out of the recognition that customers now expect a single point of expertise to help them find their ideal roof.” Source: RevenueBase Database · checked Sep 30, 2026
4	Flynn Group Of Companies	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 30, 2026	5,001-10,000	1,951 contacts →
	Indirect evidence “The Flynn Group of Companies is North America's leading building envelope trade contractor.” Source: RevenueBase Database · checked Sep 30, 2026
5	IKO North America	Partial evidence	Brampton, ON, CanadaHQ checked Sep 30, 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 30, 2026
6	Kingspan Group	Indirect evidence	Kingscourt, IrelandHQ checked Sep 30, 2026	10001+	931 contacts →
	Indirect evidence “At Kingspan, we're on a mission to transform the built environment through inspiration, innovation and insight.” Source: RevenueBase Database · checked Sep 30, 2026
7	GCP	Indirect evidence	Alpharetta, GA, United StatesHQ checked Sep 30, 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 30, 2026
8	Vedacit	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 30, 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 30, 2026
9	Tremco CPG INC	Strong evidence	Beachwood, OH, United StatesHQ checked Sep 30, 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 30, 2026
10	Gulfeagle Supply	Partial evidence	Tampa, FL, United StatesHQ checked Sep 30, 2026	1,001-5,000	614 contacts →
	Partial evidence “Gulfeagle Supply is a leading distributor of roofing supplies and building products in the United States.” Source: RevenueBase Database · checked Sep 30, 2026
11	Soprema Canada	Indirect evidence	Drummondville, QC, CanadaHQ checked Sep 30, 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 30, 2026
12	Lariviere	Indirect evidence	Angers, FranceHQ checked Sep 30, 2026	501-1,000	511 contacts →
	Indirect evidence “Leader de la distribution de matériaux de couverture, LARIVIERE propose une offre complète de plus de 30 références : couverture ardoise et tuile / couverture et charpente bois /…” Source: RevenueBase Database · checked Sep 30, 2026
13	The Garland Company, INC	Indirect evidence	Cleveland, OH, United StatesHQ checked Sep 30, 2026	201-500	504 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
14	Kingspan Insulated Panels North America	Partial evidence	Deland, FL, United StatesHQ checked Sep 30, 2026	1,001-5,000	348 contacts →
	Partial evidence “Who We Are: Kingspan is a trusted leader in the design, manufacture and supply of high performance building products and solutions for the global property and construction…” Source: RevenueBase Database · checked Sep 30, 2026
15	Soprema USA	Partial evidence	Wadsworth, OH, United StatesHQ checked Sep 30, 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 30, 2026
16	Duro-Last	Strong evidence	Saginaw, MI, United StatesHQ checked Sep 30, 2026	501-1,000	345 contacts →
	Strong 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 30, 2026
17	Roofmart	Indirect evidence	Brampton, ON, CanadaHQ checked Sep 30, 2026	201-500	343 contacts →
	Indirect evidence “For more than 60 years Roofmart has been the distributor of choice among industry professionals in Canada.” Source: RevenueBase Database · checked Sep 30, 2026
18	Mueller	Indirect evidence	Ballinger, TX, United StatesHQ checked Sep 30, 2026	501-1,000	322 contacts →
	Indirect evidence “Mueller is a national brand, leading in high‑quality metal roong, wall and building solutions, proudly serving property owners and contractors across the country.” Source: RevenueBase Database · checked Sep 30, 2026
19	Vicwest	Strong evidence	Burlington, ON, CanadaHQ checked Sep 30, 2026	501-1,000	306 contacts →
	Strong evidence “Vicwest Building Products is one of North America’s leading manufacturers and distributors of exterior building products, including metal roofing, siding, decking, insulated metal…” Source: RevenueBase Database · checked Sep 30, 2026
20	Carlisle Syntec Systems	Strong evidence	Carlisle, PA, United StatesHQ checked Sep 30, 2026	1,001-5,000	302 contacts →
	Strong 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 30, 2026
21	Bothwell Accurate Co. INC	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 30, 2026	201-500	301 contacts →
	Partial evidence “Bothwell-Accurate is one of the oldest and most experienced companies providing Roofing and Waterproofing services to Industrial, Commercial and Institutional buildings in the…” Source: RevenueBase Database · checked Sep 30, 2026
22	Malarkey Roofing Products	Strong evidence	Portland, OR, United StatesHQ checked Sep 30, 2026	501-1,000	298 contacts →
	Strong evidence “Founded in 1956, Malarkey Roofing Products is a US manufacturer of residential and commercial roofing products, with production facilities in Oregon, California, Oklahoma, and…” Source: RevenueBase Database · checked Sep 30, 2026
23	Water Seal Company LLC	Indirect evidence	Sharjah, United Arab EmiratesHQ checked Sep 30, 2026	1,001-5,000	296 contacts →
	Indirect evidence “Water Seal is the number one solution provider for Waterproofing & Insulation Services in UAE.” Source: RevenueBase Database · checked Sep 30, 2026
24	Paul Bauder Gmbh & Co. KG	Indirect evidence	Stuttgart, GermanyHQ checked Sep 30, 2026	1,001-5,000	291 contacts →
	Indirect evidence “Die Paul Bauder GmbH & Co.” Source: RevenueBase Database · checked Sep 30, 2026
25	Siplast	Partial evidence	Arkadelphia, AR, United StatesHQ checked Sep 30, 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 30, 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: roofing membrane 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 roofing membrane manufacturers.
Partial evidence: Its own public description names part of roofing membrane manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name roofing membrane 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 5,137 roofing membrane manufacturers worldwide

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Roofing membrane manufacturers worldwide at a glance

As of Sep 30, 2026

28.8%Verified-email coverage

14.5Average contacts per company

11-50Median size (employees)

0.6%Largest-city concentration · Istanbul

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

2,185

11-50

1,779

51-200

696

201-500

217

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 roofing membrane 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 roofing membrane manufacturers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “roofing membrane 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 roofing membrane 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 roofing membrane 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, 21,485 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 30, 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.

Roofing membrane manufacturers by location

25 lists · largest first

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

Countries

Cities

Roofing membrane manufacturers based in Houston, United States28

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 roofing membrane 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 roofing membrane manufacturers are there worldwide?

RevenueBase identified 5,137 roofing membrane 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 roofing membrane manufacturers?

The United States leads with 1,301 companies, followed by the United Kingdom (489) and France (286). Every roofing membrane manufacturers list by country and city is linked on this page.

Which city has the most roofing membrane manufacturers?

Istanbul leads with 33 headquartered companies, followed by Houston (28) and Sao Paulo (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 21,485 verified decision-maker contacts tracked across these 5,137 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 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 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.