Company lists · Data refreshed September 2026

Top 25 Ground improvement contractors based in the United States

RevenueBase identified 468 ground improvement contractors headquartered in the United States as of September 2026 and tracks 9,990 professional contacts across them, including 3,556 with verified work emails. Houston is the largest hub.

This list covers ground improvement contractors 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 16, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review
468Companies
9,990Contacts tracked
3,556Verified emails
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The 25 largest ground improvement contractors based in the United States

Ranked by team size
Top 25 of 468 ground improvement contractors based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to ground improvement contractors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceWestmont, IL, United StatesHQ checked Sep 16, 2026501-1,000483 contacts →

Indirect evidence

“ENTACT is the partner of choice in solving our customer's most complex environmental remediation and geotechnical infrastructure challenges.”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceOdessa, FL, United StatesHQ checked Sep 16, 2026201-500475 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceGreenwood Village, CO, United StatesHQ checked Sep 16, 20261,001-5,000449 contacts →

Partial evidence

“Minova is an industry leader of ground support and geotechnical solutions for mining, tunnelling and surface ground engineering projects.”

Source: RevenueBase Database · checked Sep 16, 2026
4Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 16, 2026501-1,000423 contacts →

Partial evidence

“For over six decades, Malcolm Drilling has set the standard in the deep foundation and ground engineering industry, consistently leading through innovation and expertise.”

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceAlpharetta, GA, United StatesHQ checked Sep 16, 2026501-1,000410 contacts →

Partial evidence

“Tensar, a division of CMC, is a global leader in ground stabilization and soil reinforcement.”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceBonner Springs, KS, United StatesHQ checked Sep 16, 2026201-500377 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 16, 2026
7Indirect evidenceCanonsburg, PA, United StatesHQ checked Sep 16, 2026201-500344 contacts →

Indirect evidence

“Nicholson has been both a leader and an innovator in the geotechnical construction industry for more than 70 years.”

Source: RevenueBase Database · checked Sep 16, 2026
8Strong evidencePittsburgh, PA, United StatesHQ checked Sep 16, 2026201-500250 contacts →

Strong evidence

“Menard USA is a design-build specialty contractor offering ground improvement for sites with problematic soil conditions.”

Source: RevenueBase Database · checked Sep 16, 2026
9Strong evidenceAntioch, CA, United StatesHQ checked Sep 16, 2026201-500217 contacts →

Strong evidence

“Drill Tech Drilling & Shoring, Inc.(DTDS) is a full service Engineering Contractor founded in 1994 Specializing in tunneling, shafts, deep foundation, ground improvement, and…”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceOakland, CA, United StatesHQ checked Sep 16, 2026201-500168 contacts →

Indirect evidence

“The success of Condon-Johnson & Associates - a family owned construction company - is underpinned by our core values: Dependability.”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceNew York, NY, United StatesHQ checked Sep 16, 202651-200157 contacts →

Indirect evidence

“Mueser Rutledge Consulting Engineers is a leading engineering firm providing structural design of foundations and waterfront structures and complete geotechnical studies.”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceSterling, VA, United StatesHQ checked Sep 16, 2026201-500145 contacts →

Partial evidence

“Schnabel is a nationwide contractor that designs and constructs earth retention systems and specialized foundations.”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceHouston, TX, United StatesHQ checked Sep 16, 202651-200127 contacts →

Indirect evidence

“TorcSill is a full turnkey steel foundation solutions provider that specializes in helical piles.”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidenceCincinnati, OH, United StatesHQ checked Sep 16, 2026201-500121 contacts →

Partial evidence

“Founded in 1956, Goettle is a Design-Build Construction Company, specializing in Deep Foundations, Earth Retention, Ground Modification, Marine Construction, and Grouting Services.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceConverse, TX, United StatesHQ checked Sep 16, 2026501-1,000121 contacts →

Indirect evidence

“A.H.”

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceCharlestown, MA, United StatesHQ checked Sep 16, 202651-200117 contacts →

Partial evidence

“TREVIICOS Corporation was founded in 1997 when the Italian TREVI group acquired Boston- based ground engineering firm ICOS, to combine the worldwide experience of TREVI with ICOS'…”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceCrystal Lake, IL, United StatesHQ checked Sep 16, 202651-200116 contacts →

Indirect evidence

“Curran Contracting Company | Full-Service Site Development & Infrastructure Solutions Since 1936 At Curran Contracting, we move earth-and drive progress.”

Source: RevenueBase Database · checked Sep 16, 2026
18Strong evidenceTomball, TX, United StatesHQ checked Sep 16, 202651-200116 contacts →

Strong evidence

“URETEK is a national specialty geotechnical contractor delivering injection-based ground improvement, chemical grouting, and structural repair for public- and private-sector…”

Source: RevenueBase Database · checked Sep 16, 2026
19Partial evidenceGlassport, PA, United StatesHQ checked Sep 16, 202651-20095 contacts →

Partial evidence

“MICON engineers and delivers go-to solutions for ground stabilization, water control and industrial ventilation.”

Source: RevenueBase Database · checked Sep 16, 2026
20Partial evidenceDavidson, NC, United StatesHQ checked Sep 16, 202651-20090 contacts →

Partial evidence

“Geopier, a division of CMC, is a design/build specialty contractor specializing in efficient and cost-effective Intermediate Foundation® solution for the support of structures.”

Source: RevenueBase Database · checked Sep 16, 2026
21Partial evidencePasadena, TX, United StatesHQ checked Sep 16, 202651-20088 contacts →

Partial evidence

“T&T Construction is a turnkey concrete and site work contractor with over forty years of professional experience.”

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidenceEnglewood, CO, United StatesHQ checked Sep 16, 202651-20082 contacts →

Indirect evidence

“Creating Space Underground®” has been our mission and our passion for 25 years.”

Source: RevenueBase Database · checked Sep 16, 2026
23Partial evidenceColfax, NC, United StatesHQ checked Sep 16, 202651-20080 contacts →

Partial evidence

“UMA is an experienced Design-Build, geotechnical contractor with a proven record of performance in diverse soil conditions.”

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceMt Morris, PA, United StatesHQ checked Sep 16, 20261,001-5,00078 contacts →

Indirect evidence

“Shaft Drillers International LLC Headquartered in Mt.”

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidenceNew Kensington, PA, United StatesHQ checked Sep 16, 202651-20069 contacts →

Partial evidence

“Geo-Solutions, Inc (Geo-Solutions, GSI) helps contractors, owners and engineers select and implement cost-effective and practical construction solutions to environmental and civil…”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 468 ground improvement contractors based in the United States

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Ground improvement contractors based in the United States at a glance

As of Sep 16, 2026
35.6%Verified-email coverage
21.3Average contacts per company
11-50Median size (employees)
2.4%Largest-city concentration · Houston
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
139
11-50
192
51-200
106
201-500
19
501-1,000
8
1,001-5,000
2
10001+
1

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 468 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 ground improvement contractors, 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 “ground improvement contractors”. 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 ground improvement contractors), 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 ground improvement contractors, 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, 3,556 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 16, 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 ground improvement contractors, 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 ground improvement contractors are there based in the United States?

RevenueBase identified 468 ground improvement contractors 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?

Entact, LLC, headquartered in Westmont, tops this list with the largest team on record.

Which city has the most ground improvement contractors?

Houston leads with 11 headquartered companies, followed by New York (6) and Tampa (6).

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 3,556 verified decision-maker contacts tracked across these 468 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 16, 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.