Company lists · Data refreshed September 2026
Top 25 Waterproofing companies based in the United States
RevenueBase identified 2,340 waterproofing companies headquartered in the United States as of September 2026 and tracks 26,201 professional contacts across them, including 7,962 with verified work emails. New York is the largest hub.
This list covers waterproofing companies 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 29, 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.
The 25 largest waterproofing companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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, 2026Thanks. The Data Team will review it. | |||||
| 5 | 407 contacts → | ||||
Indirect 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 348 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 7 | 335 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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, 2026Thanks. The Data Team will review it. | |||||
| 9 | 304 contacts → | ||||
Indirect evidence “Roof Services is a Commercial roofing contractor.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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, 2026Thanks. The Data Team will review it. | |||||
| 11 | 285 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 226 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 14 | 193 contacts → | ||||
Indirect 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, 2026Thanks. The Data Team will review it. | |||||
| 15 | 154 contacts → | ||||
Indirect evidence “At F.D.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 139 contacts → | ||||
Indirect evidence “Greenwood Industries is the custom building envelope solutions company.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 135 contacts → | ||||
Indirect evidence “We are Snyder.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 133 contacts → | ||||
Strong evidence “At Beacon Waterproofing, we’re the largest, nationwide distributor of commercial sealants and specialty waterproofing solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 131 contacts → | ||||
Indirect evidence “In 1993, Southwest Construction Services opened its doors as a company that simply provided horizontal joint sealants for parking lots.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 122 contacts → | ||||
Strong evidence “Kodiak specializes in commercial roofing and waterproofing throughout the Western United States.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 113 contacts → | ||||
Strong 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 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 112 contacts → | ||||
Indirect evidence “Cantey Foundation Specialists: Where expertise meets peace of mind.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: waterproofing companies. 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 waterproofing companies.
- Partial evidence
- Its own public description names part of waterproofing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name waterproofing companies. 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 2,340 waterproofing companies based in the United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 7,962 reachable decision-makers.
Free signup · no credit card
Waterproofing companies based in the United States at a glance
As of Sep 29, 2026Companies by employee count
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 2,340 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 waterproofing companies, 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 “waterproofing companies”. 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 waterproofing companies), 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 waterproofing companies, 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, 7,962 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.
Waterproofing companies by metro
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 waterproofing companies, 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 waterproofing companies are there based in the United States?
RevenueBase identified 2,340 waterproofing companies 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?
Groundworks, headquartered in Virginia Beach, tops this list with the largest team on record.
Which city has the most waterproofing companies?
New York leads with 42 headquartered companies, followed by Houston (39) and Dallas (24).
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 7,962 verified decision-maker contacts tracked across these 2,340 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.
Ready to reach these companies? Verified emails and direct dials for all 2,340 waterproofing companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Waterproofing companies by geography
- Waterproofing companies based in Sydney, Australia
- Waterproofing companies based in Toronto, Canada
- Waterproofing companies based in Mumbai, India
- Waterproofing companies based in Auckland, New Zealand
- Waterproofing companies based in Cape Town, South Africa
- Waterproofing companies based in Dubai, United Arab Emirates
- Waterproofing companies based in London, United Kingdom
- Waterproofing companies based in Houston, United States
- Waterproofing companies based in Australia
- Waterproofing companies based in Austria
- Waterproofing companies based in Belgium
- Waterproofing companies based in Brazil
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Waterproofing companies based in Sydney, Australia
- Waterproofing companies based in Toronto, Canada
- Waterproofing companies based in Mumbai, India
- Waterproofing companies based in Auckland, New Zealand
- Waterproofing companies based in Cape Town, South Africa
- Waterproofing companies based in Dubai, United Arab Emirates