Company lists · Data refreshed November 2026

Top 25 Foundation drainage contractors worldwide

RevenueBase identified 1,137 company matches for foundation drainage contractors worldwide as of November 2026 and tracks 11,765 professional contacts across them, including 3,343 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for foundation drainage 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 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
1,137Companies
11,765Contacts tracked
3,343Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest foundation drainage contractors worldwide

Ranked by team size
Top 25 of 1,137 company matches for foundation drainage 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 matchEdmonton, AB, CanadaHQ recorded Nov 6, 20261,001-5,000494 contacts →

Exact match

“Armtec has spent over 110 years supplying the most innovative drainage equipment, dynamically designed to support roadways, stormwater, rehabilitation, and erosion control.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchOdessa, FL, United StatesHQ recorded Nov 6, 2026201-500490 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact 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
5Exact 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
6Exact 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
7Exact 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
8Exact matchCarlisle, United KingdomHQ recorded Nov 6, 2026201-500139 contacts →

Exact match

“JDP is Britain’s leading merchant-manufacturer supplying the UK Civils and Drainage industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact 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
10Exact 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
11Exact 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
12Exact 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
13Exact 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
14Exact 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
15Exact 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
16Exact 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
17Exact 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
18Exact 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
19Exact 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
20Exact 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
21Exact matchGravesend, United KingdomHQ recorded Nov 6, 202651-20080 contacts →

Exact match

“Metcor Environmental is one of the UK’s leading commercial drainage, plumbing and pump engineering firms.”

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 matchKirkby, United KingdomHQ recorded Nov 6, 2026201-50068 contacts →

Exact match

“Quinn Developments NW Ltd is a Groundworks and Civil Engineering company which is also able to provide Specialist Solutions to Deep Drainage problems.”

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

Showing 25 of 1,137 foundation drainage contractors worldwide

See the full list, filter by size, metro and specialty, and access 3,343 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Foundation drainage contractors worldwide at a glance

As of Nov 6, 2026
28.4%Verified-email coverage
10.3Average contacts per company
11-50Median size (employees)
1.1%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
529
11-50
422
51-200
104
201-500
25
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 contractors are linked below.
What qualifies
Company records worldwide whose business descriptions match “foundation drainage 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 3,343 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 contractors by location

3 lists · largest first

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

How many foundation drainage contractors are there worldwide?

RevenueBase identified 1,137 company matches for foundation drainage 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 contractors?

The United States leads with 538 companies, followed by the United Kingdom (202) and Canada (103). Every foundation drainage contractors list by country and city is linked on this page.

Which city has the most foundation drainage contractors?

London leads with 13 company records, followed by Dallas (10) and Toronto (10).

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 3,343 professional contacts with verified work emails tracked across these 1,137 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.

Ready to reach these companies? Verified emails and direct dials for all 1,137 foundation drainage contractors worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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.