Company lists · Data refreshed September 2026

Top 25 Roof waterproofing contractors worldwide

Name: Roof waterproofing contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 10,296 companies tracked

RevenueBase identified 10,296 roof waterproofing contractors worldwide as of September 2026 and tracks 67,499 professional contacts across them, including 18,481 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers roof waterproofing contractors 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 29, 2026. Country and city lists for roof waterproofing contractors 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 29, 2026 86% judged on-target in blind review

10,296Companies

67,499Contacts tracked

18,481Verified emails

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The 25 largest roof waterproofing contractors worldwide

Ranked by team size

Top 25 of 10,296 roof waterproofing contractors worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to roof waterproofing contractors: 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	Centimark Corporation	Partial evidence	Canonsburg, PA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,562 contacts →
	Partial evidence “We are North America's largest commercial roofing contractor, with over 100 locations from coast to coast.” Source: RevenueBase Database · checked Sep 29, 2026
2	Smac Enveloppe Industrielle	Indirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 29, 2026	1,001-5,000	1,380 contacts →
	Indirect evidence “Travaux de bardage et d'étanchéité” Source: RevenueBase Database · checked Sep 29, 2026
3	Soprema Canada	Indirect evidence	Drummondville, QC, CanadaHQ checked Sep 29, 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 29, 2026
4	Etandex	Indirect evidence	Les Ulis Courtaboeuf, FranceHQ checked Sep 29, 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 29, 2026
5	Valcourt Group	Indirect evidence	The Woodlands, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	409 contacts →
	Indirect evidence “The Valcourt Group is one of the nation's leading providers of commercial building restoration, repair, and maintenance services.” Source: RevenueBase Database · checked Sep 29, 2026
6	Western Specialty Contractors	Partial evidence	St Louis, MO, United StatesHQ checked Sep 29, 2026	1,001-5,000	407 contacts →
	Partial evidence “Western Specialty Contractors has been family-owned and operated since 1915, proudly serving clients nationwide with over 30+ branch offices.” Source: RevenueBase Database · checked Sep 29, 2026
7	Aspen Contracting, INC	Indirect evidence	Lee's Summit, MO, United StatesHQ checked Sep 29, 2026	201-500	401 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
8	Nina Percept PVT LTD A Subsidiary Of Pidilite Industries LTD	Strong evidence	Mumbai, IndiaHQ checked Sep 29, 2026	1,001-5,000	395 contacts →
	Strong evidence “Nina Percept Pvt Ltd is proudly India’s largest Turnkey Waterproofing Specialist Contractors providing solutions to many of the most complex and challenging construction projects…” Source: RevenueBase Database · checked Sep 29, 2026
9	Soprema USA	Partial evidence	Wadsworth, OH, United StatesHQ checked Sep 29, 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 29, 2026
10	Alpha Insulation & Waterproofing	Partial evidence	Marietta, GA, United StatesHQ checked Sep 29, 2026	501-1,000	335 contacts →
	Partial evidence “With over a quarter-century of experience in commercial insulation, waterproofing, spray fireproofing, spray foam insulation, and restoration, Alpha has served as the benchmark…” Source: RevenueBase Database · checked Sep 29, 2026
11	Chamberlin Roofing & Waterproofing	Strong evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	501-1,000	321 contacts →
	Strong evidence “Chamberlin Roofing & Waterproofing is an established specialty contractor that provides roofing and sheet metal, waterproofing and caulking, building and garage restoration, as…” Source: RevenueBase Database · checked Sep 29, 2026
12	Roof Services	Strong evidence	Deer Park, NY, United StatesHQ checked Sep 29, 2026	51-200	304 contacts →
	Strong evidence “Roof Services is a Commercial roofing contractor.” Source: RevenueBase Database · checked Sep 29, 2026
13	Bothwell Accurate Co. INC	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 29, 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 29, 2026
14	Water Seal Company LLC	Partial evidence	Sharjah, United Arab EmiratesHQ checked Sep 29, 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 29, 2026
15	RAM Construction Services	Strong evidence	Livonia, MI, United StatesHQ checked Sep 29, 2026	501-1,000	288 contacts →
	Strong evidence “Founded in 1918, RAM Construction Services is the oldest and most experienced waterproofing and restoration contractor in the United States.” Source: RevenueBase Database · checked Sep 29, 2026
16	Siplast	Partial evidence	Arkadelphia, AR, United StatesHQ checked Sep 29, 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 29, 2026
17	JR & CO	Partial evidence	Kansas City, MO, United StatesHQ checked Sep 29, 2026	201-500	242 contacts →
	Partial evidence “Headquartered in Kansas City, MO and serving clients across the United States, JR & CO is a family and veteran-owned full building envelope contractor specializing in roofing…” Source: RevenueBase Database · checked Sep 29, 2026
18	Gmaia Construtora	Indirect evidence	Bh, BrazilHQ checked Sep 29, 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 29, 2026
19	Bauder Flat Roofs	Strong evidence	Ipswich, United KingdomHQ checked Sep 29, 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 29, 2026
20	Kalkreuth Roofing & Sheet Metal, INC	Partial evidence	Wheeling, WV, United StatesHQ checked Sep 29, 2026	501-1,000	229 contacts →
	Partial evidence “Kalkreuth Roofing and Sheet Metal is a Top 10 commercial roofing contractor in the United States, specializing in complex commercial roofing, exterior envelope systems, and…” Source: RevenueBase Database · checked Sep 29, 2026
21	Eskola Roofing & Waterproofing	Partial evidence	Morristown, TN, United StatesHQ checked Sep 29, 2026	501-1,000	226 contacts →
	Partial evidence “With over 35 years in the roofing business, Eskola Roofing is a full-service roofing and waterproofing company.” Source: RevenueBase Database · checked Sep 29, 2026
22	Atlas-Apex Roofing INC	Strong evidence	Etobicoke, ON, CanadaHQ checked Sep 29, 2026	501-1,000	205 contacts →
	Strong evidence “Founded in 1928, we are the premier Industrial/ Commercial/ Institutional roofing, waterproofing, and sheet metal contractor serving our customers locally, across Canada, and…” Source: RevenueBase Database · checked Sep 29, 2026
23	BMI Deutschland	Indirect evidence	Oberursel, GermanyHQ checked Sep 29, 2026	1,001-5,000	193 contacts →
	Indirect evidence “Die BMI Gruppe ist in Deutschland Marktführer für Steil- und Flachdachsysteme und verfügt über jahrzehntelange Erfahrung.” Source: RevenueBase Database · checked Sep 29, 2026
24	EDA Contractors, INC	Partial evidence	Bensalem, PA, United StatesHQ checked Sep 29, 2026	201-500	193 contacts →
	Partial evidence “Founded in EDA Contractors holds an extensive portfolio and experience on the exterior envelope of commercial, institutional, and industrial buildings.” Source: RevenueBase Database · checked Sep 29, 2026
25	Briggs Amasco LTD	Partial evidence	Cradley Heath, United KingdomHQ checked Sep 29, 2026	201-500	157 contacts →
	Partial evidence “Our Mission is to carry out Roofing and Waterproofing contracts, using the best and technically most appropriate products in order to give our customers the best value in…” Source: RevenueBase Database · checked Sep 29, 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: roof waterproofing contractors. 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 roof waterproofing contractors.
Partial evidence: Its own public description names part of roof waterproofing contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name roof waterproofing contractors. 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 10,296 roof waterproofing contractors worldwide

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Roof waterproofing contractors worldwide at a glance

As of Sep 29, 2026

27.4%Verified-email coverage

6.6Average contacts per company

11-50Median size (employees)

0.8%Largest-city concentration · Houston

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

4,882

11-50

3,892

51-200

1,030

201-500

178

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 roof waterproofing contractors, 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 roof waterproofing contractors are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “roof waterproofing contractors”. 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 roof waterproofing contractors), 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 roof waterproofing contractors, 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, 18,481 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 29, 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.

Roof waterproofing contractors by location

34 lists · largest first

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

Countries

Cities

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 roof waterproofing contractors, 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 roof waterproofing contractors are there worldwide?

RevenueBase identified 10,296 roof waterproofing contractors 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?

Centimark Corporation, headquartered in Canonsburg, tops this list with the largest team on record.

Which country has the most roof waterproofing contractors?

The United States leads with 4,057 companies, followed by the United Kingdom (846) and France (680). Every roof waterproofing contractors list by country and city is linked on this page.

Which city has the most roof waterproofing contractors?

Houston leads with 80 headquartered companies, followed by London (67) and Sao Paulo (57).

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 18,481 verified decision-maker contacts tracked across these 10,296 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 29, 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.