Company lists · Data refreshed September 2026

Top 25 Basement waterproofing manufacturers based in the United States

Name: Basement 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 27, 2026 855 companies tracked

RevenueBase identified 855 basement waterproofing manufacturers headquartered in the United States as of September 2026 and tracks 19,577 professional contacts across them, including 5,927 with verified work emails. Dallas is the largest hub.

This list covers basement 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 27, 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 27, 2026 86% judged on-target in blind review

855Companies

19,577Contacts tracked

5,927Verified emails

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The 25 largest basement waterproofing manufacturers based in the United States

Ranked by team size

Top 25 of 855 basement waterproofing manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to basement 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 27, 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 27, 2026
2	Groundworks	Indirect evidence	Virginia Beach, VA, United StatesHQ checked Sep 27, 2026	5,001-10,000	1,132 contacts →
	Indirect evidence “At Groundworks, we're more than just a company; we're a national movement towards safer, more secure foundations for homes and businesses across the United States.” Source: RevenueBase Database · checked Sep 27, 2026
3	GCP	Indirect evidence	Alpharetta, GA, United StatesHQ checked Sep 27, 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 27, 2026
4	Tremco CPG INC	Strong evidence	Beachwood, OH, United StatesHQ checked Sep 27, 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 27, 2026
5	Soprema USA	Partial evidence	Wadsworth, OH, United StatesHQ checked Sep 27, 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 27, 2026
6	RAM Construction Services	Partial evidence	Livonia, MI, United StatesHQ checked Sep 27, 2026	501-1,000	288 contacts →
	Partial 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 27, 2026
7	JES Foundation Repair	Indirect evidence	Nottingham, MD, United StatesHQ checked Sep 27, 2026	5,001-10,000	242 contacts →
	Indirect evidence “JES is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Source: RevenueBase Database · checked Sep 27, 2026
8	W. R. Meadows, INC	Indirect evidence	Hampshire, IL, United StatesHQ checked Sep 27, 2026	n/a	208 contacts →
	Indirect evidence “W.” Source: RevenueBase Database · checked Sep 27, 2026
9	Beacon Waterproofing Products	Partial evidence	Jacksonville, FL, United StatesHQ checked Sep 27, 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 27, 2026
10	Basement Systems, INC	Strong evidence	Seymour, CT, United StatesHQ checked Sep 27, 2026	51-200	128 contacts →
	Strong evidence “Basement Systems Inc, based in Seymour, Connecticut, is a network of basement waterproofing and crawl space repair contractors spanning across the United States and Canada.” Source: RevenueBase Database · checked Sep 27, 2026
11	Aquaguard Foundation Solutions	Indirect evidence	Marietta, GA, United StatesHQ checked Sep 27, 2026	1,001-5,000	123 contacts →
	Indirect evidence “AquaGuard is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Source: RevenueBase Database · checked Sep 27, 2026
12	Foundation Recovery Systems	Indirect evidence	Moberly, MO, United StatesHQ checked Sep 27, 2026	5,001-10,000	114 contacts →
	Indirect evidence “Foundation Recovery Systems is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Source: RevenueBase Database · checked Sep 27, 2026
13	Olshan Foundation Repair	Partial evidence	Houston, TX, United StatesHQ checked Sep 27, 2026	201-500	113 contacts →
	Partial evidence “Olshan Foundation Solutions is the premier provider of foundation repair, waterproofing and related services in the markets it serves across the United States.” Source: RevenueBase Database · checked Sep 27, 2026
14	Prosoco, INC	Partial evidence	Lawrence, KS, United StatesHQ checked Sep 27, 2026	51-200	108 contacts →
	Partial evidence “PROSOCO is a national manufacturer of construction products for improving the energy-efficiency, sustainability, performance and appearance of buildings.” Source: RevenueBase Database · checked Sep 27, 2026
15	Helitech Waterproofing & Foundation Repair	Indirect evidence	Caseyville, IL, United StatesHQ checked Sep 27, 2026	201-500	105 contacts →
	Indirect evidence “Helitech is a locally-owned specialty contractor serving Arkansas, Illinois, Indiana, Iowa, Kansas, Kentucky, Missouri, Oklahoma, and Tennessee with a focus on faith and family.” Source: RevenueBase Database · checked Sep 27, 2026
16	Press-Seal Corporation	Indirect evidence	Fort Wayne, IN, United StatesHQ checked Sep 27, 2026	51-200	104 contacts →
	Indirect evidence “Press-Seal Corporation is a third-generation family-owned business founded in 1954 in the Midwestern United States, from where we operate to this very day.” Source: RevenueBase Database · checked Sep 27, 2026
17	Hohmann & Barnard	Indirect evidence	Hauppauge, NY, United StatesHQ checked Sep 27, 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 27, 2026
18	Perma-Seal Basement Systems	Strong evidence	Burr Ridge, IL, United StatesHQ checked Sep 27, 2026	201-500	96 contacts →
	Strong evidence “For over 45 years, Perma-Seal has been the trusted name in basement waterproofing, foundation repair, concrete leveling, plumbing, and attic insulation throughout Chicagoland and…” Source: RevenueBase Database · checked Sep 27, 2026
19	GDA Contractors	Indirect evidence	Grand Prairie, TX, United StatesHQ checked Sep 27, 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 27, 2026
20	DBS Repair	Partial evidence	Duluth, MN, United StatesHQ checked Sep 27, 2026	51-200	92 contacts →
	Partial evidence “Since 2012, DBS has proudly served Minnesota and Wisconsin with expert solutions for basements, foundations, concrete, insulation, and whole-home energy performance.” Source: RevenueBase Database · checked Sep 27, 2026
21	Ayers Basement Systems	Strong evidence	Lansing, MI, United StatesHQ checked Sep 27, 2026	51-200	89 contacts →
	Strong evidence “Ayers Basement Systems is a family-owned, veteran-owned, and locally operated basement waterproofing and foundation repair contractor serving Michigan and Northern Indiana since…” Source: RevenueBase Database · checked Sep 27, 2026
22	Pecora Corporation	Strong evidence	Harleysville, PA, United StatesHQ checked Sep 27, 2026	51-200	88 contacts →
	Strong evidence “Since its founding in 1862, Pecora has developed and manufactured trusted solutions to meet the changing demands of the commercial waterproofing industry.” Source: RevenueBase Database · checked Sep 27, 2026
23	AFS Foundation & Waterproofing Specialists	Indirect evidence	Alabaster, AL, United StatesHQ checked Sep 27, 2026	5,001-10,000	87 contacts →
	Indirect evidence “AFS is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Source: RevenueBase Database · checked Sep 27, 2026
24	Acculevel INC	Indirect evidence	Rossville, IN, United StatesHQ checked Sep 27, 2026	201-500	87 contacts →
	Indirect evidence “Acculevel is your go-to foundation expert.” Source: RevenueBase Database · checked Sep 27, 2026
25	'58 Foundations & Waterproofing	Strong evidence	Knoxville, NC, United StatesHQ checked Sep 27, 2026	201-500	83 contacts →
	Strong evidence “58 Foundations & Waterproofing, inventor of the interior basement waterproofing system, has been providing five-star customer experiences in basement waterproofing, crawlspace…” Source: RevenueBase Database · checked Sep 27, 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: basement 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 basement waterproofing manufacturers.
Partial evidence: Its own public description names part of basement waterproofing manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name basement 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 855 basement waterproofing manufacturers based in the United States

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Basement waterproofing manufacturers based in the United States at a glance

As of Sep 27, 2026

30.3%Verified-email coverage

22.9Average contacts per company

11-50Median size (employees)

1.4%Largest-city concentration · Dallas

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

299

11-50

374

51-200

120

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 855 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 basement 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 “basement 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 basement 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 basement 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, 5,927 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 27, 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 basement 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 basement waterproofing manufacturers are there based in the United States?

RevenueBase identified 855 basement 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 basement waterproofing manufacturers?

Dallas leads with 12 headquartered companies, followed by Houston (11) and Denver (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 5,927 verified decision-maker contacts tracked across these 855 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 27, 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.