Company lists · Data refreshed November 2026

Top 25 Foundation drainage system contractors worldwide

RevenueBase identified 923 company matches for foundation drainage system contractors worldwide as of November 2026 and tracks 9,940 professional contacts across them, including 2,989 with verified work emails. The United States is the largest market and Dallas the largest hub.

This list covers company matches for foundation drainage system contractors 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 November 6, 2026. Country and city lists for foundation drainage system contractors 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
923Companies
9,940Contacts tracked
2,989Verified emails
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The 25 largest foundation drainage system contractors worldwide

Ranked by team size
Top 25 of 923 company matches for foundation drainage system contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchVirginia Beach, VA, United StatesHQ recorded Nov 6, 20265,001-10,0001,440 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 · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNottingham, VA, United StatesHQ recorded Nov 6, 20265,001-10,000276 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLenting, GermanyHQ recorded Nov 6, 2026501-1,000251 contacts →

Exact match

“Draining water, treating wastewater and protecting against backwater: As drainage specialists, we protect people from the power of water and protect water from people.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchRastatt, GermanyHQ recorded Nov 6, 2026201-500151 contacts →

Exact match

“Drainage with HAURATON For almost 60 years we are internationally successful as a specialist in surface drainage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMarietta, GA, United StatesHQ recorded Nov 6, 20261,001-5,000151 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSeymour, CT, United StatesHQ recorded Nov 6, 202651-200133 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMoberly, MO, United StatesHQ recorded Nov 6, 20265,001-10,000132 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 · Nov 6, 2026 · View company records in RevenueBase
8Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-500128 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchCaseyville, IN, United StatesHQ recorded Nov 6, 2026201-500112 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchCamden, SC, United StatesHQ recorded Nov 6, 202651-200112 contacts →

Exact match

“Cantey Foundation Specialists: Where expertise meets peace of mind.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLansing, MI, United StatesHQ recorded Nov 6, 202651-200107 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 · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBurr Ridge, IL, United StatesHQ recorded Nov 6, 2026201-500105 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 · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAlabaster, AL, United StatesHQ recorded Nov 6, 20265,001-10,000102 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 · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMonticello, FL, United StatesHQ recorded Nov 6, 20261,001-5,000101 contacts →

Exact match

“Alpha Foundations is proud to be part of Groundworks-North America’s leading and fastest-growing foundation solutions company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchDuluth, MN, United StatesHQ recorded Nov 6, 202651-20096 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 · Nov 6, 2026 · View company records in RevenueBase
16Exact matchRossville, IN, United StatesHQ recorded Nov 6, 2026201-50095 contacts →

Exact match

“Acculevel is your go-to foundation expert.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMacedonia, OH, United StatesHQ recorded Nov 6, 202651-20089 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 · Nov 6, 2026 · View company records in RevenueBase
18Exact matchColumbia, TN, United StatesHQ recorded Nov 6, 202611-5086 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 · Nov 6, 2026 · View company records in RevenueBase
19Exact matchCollinsville, IL, United StatesHQ recorded Nov 6, 202651-20083 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 · Nov 6, 2026 · View company records in RevenueBase
20Exact matchKnoxville, GA, United StatesHQ recorded Nov 6, 2026201-50082 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 · Nov 6, 2026 · View company records in RevenueBase
21Exact matchKnoxville, TN, United StatesHQ recorded Nov 6, 2026501-1,00075 contacts →

Exact match

“Grounded in partnership and teamwork, Vanterra Foundation Solutions is a national platform of leading foundation repair, basement waterproofing, and crawlspace repair businesses…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchAda, OK, United StatesHQ recorded Nov 6, 202651-20075 contacts →

Exact match

“Ram Jack pursues our commitment to Quality First in our foundation repair and new foundation solutions in both residential and commercial applications.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchShefford, United KingdomHQ recorded Nov 6, 2026201-50073 contacts →

Exact match

“Throughout the world ACO branded drainage and surface water management systems are recognised for their innovative design, high quality manufacture, environmental excellence and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBeltsville, MD, United StatesHQ recorded Nov 6, 202611-5073 contacts →

Exact match

“Aquaguard waterproofing has serviced the region for more than 25 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchNewry Co.Down, United KingdomHQ recorded Nov 6, 202651-20066 contacts →

Exact match

“McAllister provides a full range of corporate drainage services – from fast, efficient maintenance and rehabilitation work, to planning and installing state-of-the-art drainage…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 923 foundation drainage system contractors worldwide

See the full list, filter by size, metro and specialty, and access 2,989 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Foundation drainage system contractors worldwide at a glance

As of Nov 6, 2026
30.1%Verified-email coverage
10.8Average contacts per company
11-50Median size (employees)
1.2%Largest-city concentration · Dallas
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
399
11-50
375
51-200
88
201-500
19
501-1,000
7
1,001-5,000
2
5,001-10,000
13

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 foundation drainage system contractors are linked below.
What qualifies
Company records worldwide whose business descriptions match “foundation drainage system contractors” 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 2,989 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 November 6, 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.

Foundation drainage system contractors by location

3 lists · largest first

Every Foundation drainage system contractors 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 “foundation drainage system contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many foundation drainage system contractors are there worldwide?

RevenueBase identified 923 company matches for foundation drainage system contractors worldwide as of November 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 foundation drainage system contractors?

The United States leads with 567 companies, followed by Canada (100) and the United Kingdom (59). Every foundation drainage system contractors list by country and city is linked on this page.

Which city has the most foundation drainage system contractors?

Dallas leads with 11 company records, followed by Toronto (10) and Calgary (7).

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 2,989 professional contacts with verified work emails tracked across these 923 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 November 6, 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 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.