Company lists · Data refreshed September 2026

Top 25 Membrane waterproofing manufacturers based in the United States

Name: Membrane waterproofing manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 378 companies tracked

RevenueBase identified 378 membrane waterproofing manufacturers headquartered in the United States as of September 2026 and tracks 13,430 professional contacts across them, including 4,154 with verified work emails. Houston is the largest hub.

This list covers membrane waterproofing manufacturers headquartered in the United States, 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

378Companies

13,430Contacts tracked

4,154Verified emails

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The 25 largest membrane waterproofing manufacturers based in the United States

Ranked by team size

Top 25 of 378 membrane waterproofing manufacturers based in the United States, 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	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
3	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
4	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
5	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
6	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
7	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
8	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
9	Beacon Waterproofing Products	Partial evidence	Jacksonville, FL, United StatesHQ checked Sep 28, 2026	51-200	133 contacts →
	Partial evidence “At Beacon Waterproofing, we’re the largest, nationwide distributor of commercial sealants and specialty waterproofing solutions.” Source: RevenueBase Database · checked Sep 28, 2026
10	Hohmann & Barnard	Indirect evidence	Hauppauge, NY, United StatesHQ checked Sep 28, 2026	51-200	98 contacts →
	Indirect evidence “For over 90 years, Hohmann & Barnard, Inc, a Berkshire Hathaway Company, has delivered innovative solutions for the masonry industry.” Source: RevenueBase Database · checked Sep 28, 2026
11	GDA Contractors	Indirect evidence	Grand Prairie, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	93 contacts →
	Indirect evidence “In 1993 Daniel “George” Cain, Steven “D.” Wilson and Steven “Alan” Frank (ie.” Source: RevenueBase Database · checked Sep 28, 2026
12	Stego Industries, LLC	Indirect evidence	San Clemente, CA, United StatesHQ checked Sep 28, 2026	51-200	90 contacts →
	Indirect evidence “Stego delivers industry-leading building solutions backed by unrivaled support-helping builders, designers, and engineers build with confidence from design through installation.” Source: RevenueBase Database · checked Sep 28, 2026
13	IB Roof Systems	Partial evidence	Grapevine, TX, United StatesHQ checked Sep 28, 2026	51-200	70 contacts →
	Partial evidence “Since our start, IB Roof Systems has evolved, maintaining a strong performance record for single-ply PVC membrane and custom fabricated roofing solutions.” Source: RevenueBase Database · checked Sep 28, 2026
14	Kemper System America, INC	Strong evidence	West Seneca, NY, United StatesHQ checked Sep 28, 2026	51-200	66 contacts →
	Strong evidence “Kemper System is a leading manufacturer of cold liquid-applied resin systems for plaza waterproofing, green roofing, cool roofing, roof recoveries, historic restoration, and…” Source: RevenueBase Database · checked Sep 28, 2026
15	Kenseal Construction Products	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	51-200	66 contacts →
	Partial evidence “Kenseal Construction Products distributes quality innovative product lines to the waterproofing, sealant, glazing and concrete/masonry restoration markets.” Source: RevenueBase Database · checked Sep 28, 2026
16	Penetron International	Partial evidence	Orlando, FL, United StatesHQ checked Sep 28, 2026	51-200	62 contacts →
	Partial evidence “Founded in the late 1970s, PENETRON developed cementitious waterproofing products and additives to create an optimal crystalline technology.” Source: RevenueBase Database · checked Sep 28, 2026
17	Silicone Specialties, Inc. SSI	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	51-200	58 contacts →
	Indirect evidence “Silicone Specialties Inc.” Source: RevenueBase Database · checked Sep 28, 2026
18	Prospect Waterproofing Company	Partial evidence	Sterling, VA, United StatesHQ checked Sep 28, 2026	501-1,000	57 contacts →
	Partial evidence “Prospect Waterproofing Company\| Waterproofing, roofing systems for government, commercial, industrial clients \| Washington, DC metro” Source: RevenueBase Database · checked Sep 28, 2026
19	Noble Company	Strong evidence	Spring Lake, MI, United StatesHQ checked Sep 28, 2026	11-50	49 contacts →
	Strong evidence “Noble Company produces extruded sheet membranes for the tile and plumbing industries for applications that include sound isolation, waterproofing and crack isolation.” Source: RevenueBase Database · checked Sep 28, 2026
20	Sika Roofing	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	49 contacts →
	Indirect evidence “In 2021, American Hydrotech, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
21	Alliance Roofing Company, INC	Indirect evidence	Santa Clara, CA, United StatesHQ checked Sep 28, 2026	51-200	45 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
22	Gardner-Gibson, INC	Strong evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	201-500	44 contacts →
	Strong evidence “Gardner-Gibson is a full line manufacturer of roof coatings and underlayments, waterproofing coatings, pavement sealers, caulks and sealants that provide Protection from the…” Source: RevenueBase Database · checked Sep 28, 2026
23	American Standard Coatings	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	11-50	43 contacts →
	Strong evidence “American Standard Coatings is a roof coating manufacturer that offers the highest quality waterproofing and roof renewal systems.” Source: RevenueBase Database · checked Sep 28, 2026
24	Protecto Wrap Company	Strong evidence	Denver, CO, United StatesHQ checked Sep 28, 2026	51-200	41 contacts →
	Strong evidence “Since 1952, Protecto Wrap Company has been manufacturing waterproofing membranes with a sound reputation for producing the highest quality waterproofing systems available.” Source: RevenueBase Database · checked Sep 28, 2026
25	Versico Roofing Systems	Indirect evidence	Carlisle, PA, United StatesHQ checked Sep 28, 2026	201-500	40 contacts →
	Indirect evidence “Versico was formed in 1993 through the acquisition of a major single-ply roofing company.” 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 378 membrane waterproofing manufacturers based in the United States

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Membrane waterproofing manufacturers based in the United States at a glance

As of Sep 28, 2026

30.9%Verified-email coverage

35.5Average contacts per company

11-50Median size (employees)

2.9%Largest-city concentration · Houston

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

113

11-50

156

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 378 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 States 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 States 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, 4,154 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 States?

RevenueBase identified 378 membrane waterproofing manufacturers headquartered in the United States 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 city has the most membrane waterproofing manufacturers?

Houston leads with 11 headquartered companies, followed by Dallas (9) and Los Angeles (7).

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 4,154 verified decision-maker contacts tracked across these 378 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.