Company lists · Data refreshed September 2026
Top 25 Basement waterproofing and sealing companies worldwide
RevenueBase identified 1,260 company matches for basement waterproofing and sealing companies worldwide as of September 2026 and tracks 11,734 professional contacts across them, including 2,759 with verified work emails. The United States is the largest market and Toronto the largest hub.
This list covers company matches for basement waterproofing and sealing companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 27, 2026. Country and city lists for basement waterproofing and sealing companies follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 basement waterproofing and sealing companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,132 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 2 | 587 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 3 | 288 contacts → | ||||
Exact match “Founded in 1918, RAM Construction Services is the oldest and most experienced waterproofing and restoration contractor in the United States.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 4 | 242 contacts → | ||||
Exact match “JES is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 5 | 128 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 6 | 123 contacts → | ||||
Exact match “AquaGuard is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 7 | 114 contacts → | ||||
Exact match “Foundation Recovery Systems is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 8 | 113 contacts → | ||||
Exact match “Olshan Foundation Solutions is the premier provider of foundation repair, waterproofing and related services in the markets it serves across the United States.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 9 | 112 contacts → | ||||
Exact match “Cantey Foundation Specialists: Where expertise meets peace of mind.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 10 | 105 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 11 | 96 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 12 | 92 contacts → | ||||
Exact match “Since 2012, DBS has proudly served Minnesota and Wisconsin with expert solutions for basements, foundations, concrete, insulation, and whole-home energy performance.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 13 | 89 contacts → | ||||
Exact match “Ayers Basement Systems is a family-owned, veteran-owned, and locally operated basement waterproofing and foundation repair contractor serving Michigan and Northern Indiana since…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 14 | 87 contacts → | ||||
Exact match “AFS is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 15 | 87 contacts → | ||||
Exact match “Acculevel is your go-to foundation expert.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 16 | 83 contacts → | ||||
Exact match “58 Foundations & Waterproofing, inventor of the interior basement waterproofing system, has been providing five-star customer experiences in basement waterproofing, crawlspace…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 17 | 79 contacts → | ||||
Exact match “In 1986, Rick and Anna Lee Woods, with a partner, started a waterproofing company called Basement DeWatering Systems Metro-East, Inc.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 18 | 78 contacts → | ||||
Exact match “Crawlspace Medic is the only legitimate franchisor in crawl space and basement repair, nobody else has organized this category at a national scale.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 19 | 78 contacts → | ||||
Exact match “Ohio State Waterproofing has provided quality service with over successful waterproofing and foundation repair installations and satisfied customers since our inception in 1978.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 20 | 72 contacts → | ||||
Exact match “Aquaguard waterproofing has serviced the region for more than 25 years.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 21 | 66 contacts → | ||||
Exact match “Groundworks, formerly Foundation Systems of Michigan, is North America's leading provider of Foundation Repair, Crawl Space Encapsulation, Basement Waterproofing, and Concrete…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 22 | 62 contacts → | ||||
Exact match “This isn't just a job.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 23 | 60 contacts → | ||||
Exact match “WATERPROOFING Our specialized division for all kind of sealing operations in underground structures against pressurized and non-pressurized water.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 24 | 58 contacts → | ||||
Exact match “Foundation Repair * Waterproofing * Crawl Space Encapsulation * Concrete Lifting * USS has been repairing homes and businesses for over 30 years.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 25 | 58 contacts → | ||||
Exact match “DryPro is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “basement waterproofing and sealing companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 1,260 basement waterproofing and sealing companies worldwide
See the full list, filter by size, metro and specialty, and access 2,759 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Basement waterproofing and sealing companies worldwide at a glance
As of Sep 27, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for basement waterproofing and sealing companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “basement waterproofing and sealing companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 2,759 professional contacts with verified work emails across the full matched dataset. 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.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Basement waterproofing and sealing companies by location
4 lists · largest firstEvery Basement waterproofing and sealing companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “basement waterproofing and sealing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many basement waterproofing and sealing companies are there worldwide?
RevenueBase identified 1,260 company matches for basement waterproofing and sealing companies worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Groundworks tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most basement waterproofing and sealing companies?
The United States leads with 627 companies, followed by Canada (118) and Australia (40). Every basement waterproofing and sealing companies list by country and city is linked on this page.
Which city has the most basement waterproofing and sealing companies?
Toronto leads with 13 company records, followed by London (12) and Sao Paulo (11).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,759 professional contacts with verified work emails tracked across these 1,260 companies; direct dials are available where recorded.
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.
Ready to reach these companies? Verified emails and direct dials for all 1,260 basement waterproofing and sealing companies worldwide. Start with a free account, no credit card.
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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 SmartSearch, 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
Company intelligence · public preview
Top 25 basement waterproofing and sealing companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,260 matching company records for basement waterproofing and sealing companies worldwide, with 11,734 tracked contacts and 2,759 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 27, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 basement waterproofing and sealing companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Groundworksgroundworks.comHQ: Virginia Beach, VA, United StatesReported employees: 5,001-10,000 | Virginia Beach, VA, United States | 5,001-10,000 | Exact match | 1,132 contacts → |
“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.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Etandexemploi.etandex.fr HQ: Les Ulis Courtaboeuf, FranceReported employees: 501-1,000 | Les Ulis Courtaboeuf, France | 501-1,000 | Exact match | 587 contacts → |
“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…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  RAM Construction Servicesramservices.comHQ: Livonia, MI, United StatesReported employees: 501-1,000 | Livonia, MI, United States | 501-1,000 | Exact match | 288 contacts → |
“Founded in 1918, RAM Construction Services is the oldest and most experienced waterproofing and restoration contractor in the United States.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  JES Foundation Repairjeswork.comHQ: Nottingham, MD, United StatesReported employees: 5,001-10,000 | Nottingham, MD, United States | 5,001-10,000 | Exact match | 242 contacts → |
“JES is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Basement Systems, INCbasementsystems.comHQ: Seymour, CT, United StatesReported employees: 51-200 | Seymour, CT, United States | 51-200 | Exact match | 128 contacts → |
“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.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Aquaguard Foundation Solutionsaquaguard.netHQ: Marietta, GA, United StatesReported employees: 1,001-5,000 | Marietta, GA, United States | 1,001-5,000 | Exact match | 123 contacts → |
“AquaGuard is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Foundation Recovery Systemsfoundationrecoverysystems.comHQ: Moberly, MO, United StatesReported employees: 5,001-10,000 | Moberly, MO, United States | 5,001-10,000 | Exact match | 114 contacts → |
“Foundation Recovery Systems is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Olshan Foundation Repairolshanfoundation.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 113 contacts → |
“Olshan Foundation Solutions is the premier provider of foundation repair, waterproofing and related services in the markets it serves across the United States.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Cantey Foundation Specialistscanteycanfixit.comHQ: Camden, SC, United StatesReported employees: 51-200 | Camden, SC, United States | 51-200 | Exact match | 112 contacts → |
“Cantey Foundation Specialists: Where expertise meets peace of mind.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Helitech Waterproofing & Foundation Repairhelitechonline.comHQ: Caseyville, IL, United StatesReported employees: 201-500 | Caseyville, IL, United States | 201-500 | Exact match | 105 contacts → |
“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.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Perma-Seal Basement Systemspermaseal.netHQ: Burr Ridge, IL, United StatesReported employees: 201-500 | Burr Ridge, IL, United States | 201-500 | Exact match | 96 contacts → |
“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…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  DBS Repairdbsrepair.comHQ: Duluth, MN, United StatesReported employees: 51-200 | Duluth, MN, United States | 51-200 | Exact match | 92 contacts → |
“Since 2012, DBS has proudly served Minnesota and Wisconsin with expert solutions for basements, foundations, concrete, insulation, and whole-home energy performance.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Ayers Basement Systemsgoayers.comHQ: Lansing, MI, United StatesReported employees: 51-200 | Lansing, MI, United States | 51-200 | Exact match | 89 contacts → |
“Ayers Basement Systems is a family-owned, veteran-owned, and locally operated basement waterproofing and foundation repair contractor serving Michigan and Northern Indiana since…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  AFS Foundation & Waterproofing Specialistsafsrepair.comHQ: Alabaster, AL, United StatesReported employees: 5,001-10,000 | Alabaster, AL, United States | 5,001-10,000 | Exact match | 87 contacts → |
“AFS is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Acculevel INCacculevel.comHQ: Rossville, IN, United StatesReported employees: 201-500 | Rossville, IN, United States | 201-500 | Exact match | 87 contacts → |
“Acculevel is your go-to foundation expert.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  '58 Foundations & Waterproofing58foundations.comHQ: Knoxville, NC, United StatesReported employees: 201-500 | Knoxville, NC, United States | 201-500 | Exact match | 83 contacts → |
“58 Foundations & Waterproofing, inventor of the interior basement waterproofing system, has been providing five-star customer experiences in basement waterproofing, crawlspace…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Woods Basement Systems, INCwoodsbasementsystems.comHQ: Collinsville, IL, United StatesReported employees: 51-200 | Collinsville, IL, United States | 51-200 | Exact match | 79 contacts → |
“In 1986, Rick and Anna Lee Woods, with a partner, started a waterproofing company called Basement DeWatering Systems Metro-East, Inc.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Crawlspace Mediccrawlspacemedic.comHQ: Columbia, SC, United StatesReported employees: 11-50 | Columbia, SC, United States | 11-50 | Exact match | 78 contacts → |
“Crawlspace Medic is the only legitimate franchisor in crawl space and basement repair, nobody else has organized this category at a national scale.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Ohio State Waterproofingohiostatewaterproofing.comHQ: Macedonia, OH, United StatesReported employees: 51-200 | Macedonia, OH, United States | 51-200 | Exact match | 78 contacts → |
“Ohio State Waterproofing has provided quality service with over successful waterproofing and foundation repair installations and satisfied customers since our inception in 1978.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Aquaguard Waterproofingaquaguardwaterproofing.comHQ: Beltsville, MD, United StatesReported employees: 11-50 | Beltsville, MD, United States | 11-50 | Exact match | 72 contacts → |
“Aquaguard waterproofing has serviced the region for more than 25 years.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Foundation Systems Of Michigandrymich.comHQ: Livonia, MI, United StatesReported employees: 5,001-10,000 | Livonia, MI, United States | 5,001-10,000 | Exact match | 66 contacts → |
“Groundworks, formerly Foundation Systems of Michigan, is North America's leading provider of Foundation Repair, Crawl Space Encapsulation, Basement Waterproofing, and Concrete…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Frontier Foundation & Crawl Space Repairfrontierbasementsystems.comHQ: Joelton, TN, United StatesReported employees: 51-200 | Joelton, TN, United States | 51-200 | Exact match | 62 contacts → |
“This isn't just a job.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Renescorenesco.com HQ: Moosseedorf, SwitzerlandReported employees: 501-1,000 | Moosseedorf, Switzerland | 501-1,000 | Exact match | 60 contacts → |
“WATERPROOFING Our specialized division for all kind of sealing operations in underground structures against pressurized and non-pressurized water.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  United Structural Systemsusstn.comHQ: Pleasant View, TN, CanadaReported employees: 51-200 | Pleasant View, TN, Canada | 51-200 | Exact match | 58 contacts → |
“Foundation Repair * Waterproofing * Crawl Space Encapsulation * Concrete Lifting * USS has been repairing homes and businesses for over 30 years.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  DRY PRO Foundation And Crawlspace Specialistsdryprosystems.comHQ: Belmont, NC, United StatesReported employees: 5,001-10,000 | Belmont, NC, United States | 5,001-10,000 | Exact match | 58 contacts → |
“DryPro is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,260 company matches
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Basement waterproofing and sealing companies: dataset insights
September 27, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,237 records in the displayed employee bands.
23 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 1,260 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 27, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Basement waterproofing and sealing companies by location
4 lists · largest firstEvery Basement waterproofing and sealing companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for basement waterproofing and sealing companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many basement waterproofing and sealing companies did RevenueBase find worldwide?
The saved snapshot records 1,260 matching company records, 11,734 tracked contacts and 2,759 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 27, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 basement waterproofing and sealing companies worldwide. Snapshot: September 27, 2026. https://revenuebase.ai/companies/browse/basement-waterproofing-and-sealing-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 basement waterproofing and sealing companies worldwide
RevenueBase records 1,260 matching company records for basement waterproofing and sealing companies worldwide, with 11,734 tracked contacts and 2,759 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 27, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 basement waterproofing and sealing companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Groundworksgroundworks.com HQ: Virginia Beach, VA, United StatesReported employees: 5,001-10,000 | Virginia Beach, VA, United States | 5,001-10,000 | Exact match | 1,132 contacts → |
“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.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Etandexemploi.etandex.fr HQ: Les Ulis Courtaboeuf, FranceReported employees: 501-1,000 | Les Ulis Courtaboeuf, France | 501-1,000 | Exact match | 587 contacts → |
“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…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | RAM Construction Servicesramservices.com HQ: Livonia, MI, United StatesReported employees: 501-1,000 | Livonia, MI, United States | 501-1,000 | Exact match | 288 contacts → |
“Founded in 1918, RAM Construction Services is the oldest and most experienced waterproofing and restoration contractor in the United States.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | JES Foundation Repairjeswork.com HQ: Nottingham, MD, United StatesReported employees: 5,001-10,000 | Nottingham, MD, United States | 5,001-10,000 | Exact match | 242 contacts → |
“JES is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Basement Systems, INCbasementsystems.com HQ: Seymour, CT, United StatesReported employees: 51-200 | Seymour, CT, United States | 51-200 | Exact match | 128 contacts → |
“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.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Aquaguard Foundation Solutionsaquaguard.net HQ: Marietta, GA, United StatesReported employees: 1,001-5,000 | Marietta, GA, United States | 1,001-5,000 | Exact match | 123 contacts → |
“AquaGuard is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Foundation Recovery Systemsfoundationrecoverysystems.com HQ: Moberly, MO, United StatesReported employees: 5,001-10,000 | Moberly, MO, United States | 5,001-10,000 | Exact match | 114 contacts → |
“Foundation Recovery Systems is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Olshan Foundation Repairolshanfoundation.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 113 contacts → |
“Olshan Foundation Solutions is the premier provider of foundation repair, waterproofing and related services in the markets it serves across the United States.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Cantey Foundation Specialistscanteycanfixit.com HQ: Camden, SC, United StatesReported employees: 51-200 | Camden, SC, United States | 51-200 | Exact match | 112 contacts → |
“Cantey Foundation Specialists: Where expertise meets peace of mind.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Helitech Waterproofing & Foundation Repairhelitechonline.com HQ: Caseyville, IL, United StatesReported employees: 201-500 | Caseyville, IL, United States | 201-500 | Exact match | 105 contacts → |
“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.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Perma-Seal Basement Systemspermaseal.net HQ: Burr Ridge, IL, United StatesReported employees: 201-500 | Burr Ridge, IL, United States | 201-500 | Exact match | 96 contacts → |
“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…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | DBS Repairdbsrepair.com HQ: Duluth, MN, United StatesReported employees: 51-200 | Duluth, MN, United States | 51-200 | Exact match | 92 contacts → |
“Since 2012, DBS has proudly served Minnesota and Wisconsin with expert solutions for basements, foundations, concrete, insulation, and whole-home energy performance.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Ayers Basement Systemsgoayers.com HQ: Lansing, MI, United StatesReported employees: 51-200 | Lansing, MI, United States | 51-200 | Exact match | 89 contacts → |
“Ayers Basement Systems is a family-owned, veteran-owned, and locally operated basement waterproofing and foundation repair contractor serving Michigan and Northern Indiana since…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | AFS Foundation & Waterproofing Specialistsafsrepair.com HQ: Alabaster, AL, United StatesReported employees: 5,001-10,000 | Alabaster, AL, United States | 5,001-10,000 | Exact match | 87 contacts → |
“AFS is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Acculevel INCacculevel.com HQ: Rossville, IN, United StatesReported employees: 201-500 | Rossville, IN, United States | 201-500 | Exact match | 87 contacts → |
“Acculevel is your go-to foundation expert.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | '58 Foundations & Waterproofing58foundations.com HQ: Knoxville, NC, United StatesReported employees: 201-500 | Knoxville, NC, United States | 201-500 | Exact match | 83 contacts → |
“58 Foundations & Waterproofing, inventor of the interior basement waterproofing system, has been providing five-star customer experiences in basement waterproofing, crawlspace…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Woods Basement Systems, INCwoodsbasementsystems.com HQ: Collinsville, IL, United StatesReported employees: 51-200 | Collinsville, IL, United States | 51-200 | Exact match | 79 contacts → |
“In 1986, Rick and Anna Lee Woods, with a partner, started a waterproofing company called Basement DeWatering Systems Metro-East, Inc.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Crawlspace Mediccrawlspacemedic.com HQ: Columbia, SC, United StatesReported employees: 11-50 | Columbia, SC, United States | 11-50 | Exact match | 78 contacts → |
“Crawlspace Medic is the only legitimate franchisor in crawl space and basement repair, nobody else has organized this category at a national scale.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Ohio State Waterproofingohiostatewaterproofing.com HQ: Macedonia, OH, United StatesReported employees: 51-200 | Macedonia, OH, United States | 51-200 | Exact match | 78 contacts → |
“Ohio State Waterproofing has provided quality service with over successful waterproofing and foundation repair installations and satisfied customers since our inception in 1978.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Aquaguard Waterproofingaquaguardwaterproofing.com HQ: Beltsville, MD, United StatesReported employees: 11-50 | Beltsville, MD, United States | 11-50 | Exact match | 72 contacts → |
“Aquaguard waterproofing has serviced the region for more than 25 years.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Foundation Systems Of Michigandrymich.com HQ: Livonia, MI, United StatesReported employees: 5,001-10,000 | Livonia, MI, United States | 5,001-10,000 | Exact match | 66 contacts → |
“Groundworks, formerly Foundation Systems of Michigan, is North America's leading provider of Foundation Repair, Crawl Space Encapsulation, Basement Waterproofing, and Concrete…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Frontier Foundation & Crawl Space Repairfrontierbasementsystems.com HQ: Joelton, TN, United StatesReported employees: 51-200 | Joelton, TN, United States | 51-200 | Exact match | 62 contacts → |
“This isn't just a job.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Renescorenesco.com HQ: Moosseedorf, SwitzerlandReported employees: 501-1,000 | Moosseedorf, Switzerland | 501-1,000 | Exact match | 60 contacts → |
“WATERPROOFING Our specialized division for all kind of sealing operations in underground structures against pressurized and non-pressurized water.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | United Structural Systemsusstn.com HQ: Pleasant View, TN, CanadaReported employees: 51-200 | Pleasant View, TN, Canada | 51-200 | Exact match | 58 contacts → |
“Foundation Repair * Waterproofing * Crawl Space Encapsulation * Concrete Lifting * USS has been repairing homes and businesses for over 30 years.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | DRY PRO Foundation And Crawlspace Specialistsdryprosystems.com HQ: Belmont, NC, United StatesReported employees: 5,001-10,000 | Belmont, NC, United States | 5,001-10,000 | Exact match | 58 contacts → |
“DryPro is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Basement waterproofing and sealing companies: dataset insights
September 27, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,237 records in the displayed employee bands.
23 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 1,260 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 27, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Basement waterproofing and sealing companies by location
4 lists · largest firstEvery Basement waterproofing and sealing companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for basement waterproofing and sealing companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many basement waterproofing and sealing companies did RevenueBase find worldwide?
The saved snapshot records 1,260 matching company records, 11,734 tracked contacts and 2,759 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 27, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 basement waterproofing and sealing companies worldwide. Snapshot: September 27, 2026. https://revenuebase.ai/companies/browse/basement-waterproofing-and-sealing-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗