Company lists · Data refreshed September 2026
Top 25 Foundation repair companies based in the United States
RevenueBase identified 810 foundation repair companies headquartered in the United States as of September 2026 and tracks 9,507 professional contacts across them, including 2,468 with verified work emails. Houston is the largest hub.
This list covers foundation repair 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 19, 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 foundation repair companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,132 contacts → | ||||
Partial 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 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 475 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 377 contacts → | ||||
Partial evidence “Berkel & Company Contractors currently ranks as the largest pile foundation specialty contractor in the nation (ENR, October 12, 2009) with revenues of over $250 million per year.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 242 contacts → | ||||
Partial 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 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 123 contacts → | ||||
Partial 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 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 114 contacts → | ||||
Partial 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 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 112 contacts → | ||||
Partial evidence “Cantey Foundation Specialists: Where expertise meets peace of mind.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 105 contacts → | ||||
Indirect evidence “Helitech is a locally-owned specialty contractor serving Arkansas, Illinois, Indiana, Iowa, Kansas, Kentucky, Missouri, Oklahoma, and Tennessee with a focus on faith and family.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 96 contacts → | ||||
Strong evidence “For over 45 years, Perma-Seal has been the trusted name in basement waterproofing, foundation repair, concrete leveling, plumbing, and attic insulation throughout Chicagoland and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 92 contacts → | ||||
Partial evidence “Since 2012, DBS has proudly served Minnesota and Wisconsin with expert solutions for basements, foundations, concrete, insulation, and whole-home energy performance.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 89 contacts → | ||||
Partial evidence “Alpha Foundations is proud to be part of Groundworks-North America’s leading and fastest-growing foundation solutions company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 89 contacts → | ||||
Strong evidence “Ayers Basement Systems is a family-owned, veteran-owned, and locally operated basement waterproofing and foundation repair contractor serving Michigan and Northern Indiana since…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 87 contacts → | ||||
Partial evidence “AFS is proud to be part of Groundworks-North America’s leading and fastest-growing foundation and water management solutions company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 87 contacts → | ||||
Partial evidence “Acculevel is your go-to foundation expert.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 79 contacts → | ||||
Indirect evidence “In 1986, Rick and Anna Lee Woods, with a partner, started a waterproofing company called Basement DeWatering Systems Metro-East, Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 78 contacts → | ||||
Strong evidence “Ohio State Waterproofing has provided quality service with over successful waterproofing and foundation repair installations and satisfied customers since our inception in 1978.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 74 contacts → | ||||
Strong evidence “Ram Jack pursues our commitment to Quality First in our foundation repair and new foundation solutions in both residential and commercial applications.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 72 contacts → | ||||
Indirect evidence “Aquaguard waterproofing has serviced the region for more than 25 years.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 68 contacts → | ||||
Partial evidence “Everything is bigger in Texas, even the foundation problems.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 67 contacts → | ||||
Strong evidence “Grounded in partnership and teamwork, Vanterra Foundation Solutions is a national platform of leading foundation repair, basement waterproofing, and crawlspace repair businesses…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 66 contacts → | ||||
Strong evidence “Groundworks, formerly Foundation Systems of Michigan, is North America's leading provider of Foundation Repair, Crawl Space Encapsulation, Basement Waterproofing, and Concrete…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 62 contacts → | ||||
Indirect evidence “This isn't just a job.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 59 contacts → | ||||
Strong evidence “Helicon is Florida’s most trusted and customer-loved foundation repair company, headquartered in Tampa Bay with satellite offices across the state.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 58 contacts → | ||||
Partial evidence “DryPro 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 19, 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: foundation repair 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 foundation repair companies.
- Partial evidence
- Its own public description names part of foundation repair companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name foundation repair 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 810 foundation repair companies based in the United States
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Foundation repair companies based in the United States at a glance
As of Sep 19, 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 810 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 foundation repair 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 “foundation repair 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 foundation repair 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 foundation repair 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, 2,468 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 19, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names foundation repair 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 foundation repair companies are there based in the United States?
RevenueBase identified 810 foundation repair 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 foundation repair companies?
Houston leads with 23 headquartered companies, followed by San Antonio (13) and Dallas (12).
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 2,468 verified decision-maker contacts tracked across these 810 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 19, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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