Company lists · Data refreshed September 2026

Top 25 Ground improvement contractors worldwide

RevenueBase identified 3,142 ground improvement contractors worldwide as of September 2026 and tracks 55,826 professional contacts across them, including 14,577 with verified work emails and 0 with mobile numbers. The United Kingdom is the largest market and London the largest hub.

This list covers ground improvement contractors worldwide, 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. Country and city lists for ground improvement contractors follow the table.

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
3,142Companies
55,826Contacts tracked
14,577Verified emails
0Mobile numbers
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The 25 largest ground improvement contractors worldwide

Ranked by team size
Top 25 of 3,142 ground improvement contractors worldwide, 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
1Strong evidenceLondon, United KingdomHQ checked Sep 16, 20265,001-10,0003,960 contacts →

Strong evidence

“Every day, people around the world live, work and play on ground prepared by Keller, the world's largest geotechnical specialist contractor.”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceRueil-malmaison, FranceHQ checked Sep 16, 20265,001-10,0001,222 contacts →

Indirect evidence

“Soletanche Bachy is a world benchmark in foundations and soil technologies, and is involved in over projects every year.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceUnterschleißheim, GermanyHQ checked Sep 16, 20261,001-5,000787 contacts →

Indirect evidence

“Here at DYWIDAG, our mission is to make structures safer, stronger, and smarter.”

Source: RevenueBase Database · checked Sep 16, 2026
4Partial evidenceCesena, ItalyHQ checked Sep 16, 2026201-500620 contacts →

Partial evidence

“Trevi, a company specialized in special foundations and soil consolidation, is part of the Trevi Group, a world leader in subsoil engineering and in the design and production of…”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceRio De Janeiro, BrazilHQ checked Sep 16, 2026501-1,000612 contacts →

Indirect evidence

“Somos uma construtora especializada em obras de Infraestrutura e que possui uma unidade própria de Geotecnia.”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceAldridge, United KingdomHQ checked Sep 16, 2026201-500599 contacts →

Partial evidence

“M&J Evans Construction Ltd, one of the largest groundworks and civil engineering business has been based in the West Midlands since 2003.”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect 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
8Indirect evidenceOdessa, FL, United StatesHQ checked Sep 16, 2026201-500475 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceChennai, IndiaHQ checked Sep 16, 2026501-1,000458 contacts →

Indirect evidence

“Overview In 2012, L&T acquired a huge fleet of sophisticated foundation equipment and L&T GeoStructure - a unique legal business entity, was formed to focus, capture and build…”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial 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
11Partial 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
12Indirect evidenceJeddah, Saudi ArabiaHQ checked Sep 16, 20261,001-5,000418 contacts →

Indirect evidence

“Ammico is a geotechnical specialist contracting company and specializes in foundation engineering and marine works.”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial 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
14Indirect evidenceBelo Horizonte, BrazilHQ checked Sep 16, 2026501-1,000400 contacts →

Indirect evidence

“Fundada em 1981, a empresa é focada na execução de serviços especiais de geologia, engenharia geotécnica e recuperação de estruturas.”

Source: RevenueBase Database · checked Sep 16, 2026
15Partial 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
16Partial evidenceCotia, BrazilHQ checked Sep 16, 20261,001-5,000355 contacts →

Partial evidence

“A Tecnogeo Ground é uma empresa brasileira, líder de mercado em serviços de Geotecnia, Fundações Pesadas e Melhoramento de Solos.”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect 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
18Partial evidenceDubai Industrial City, United Arab EmiratesHQ checked Sep 16, 20261,001-5,000322 contacts →

Partial evidence

“IFG has over a decade of experience in the construction sector specialising in deep foundation and ground solutions.”

Source: RevenueBase Database · checked Sep 16, 2026
19Strong evidenceKirkby-in-ashfield, United KingdomHQ checked Sep 16, 2026501-1,000306 contacts →

Strong evidence

“Van Elle is the UK’s largest ground engineering contractor.”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceLeicester, United KingdomHQ checked Sep 16, 2026201-500284 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
21Strong evidenceSwadlincote, United KingdomHQ checked Sep 16, 2026501-1,000268 contacts →

Strong evidence

“Roger Bullivant Limited is one of the UK’s leading piling, foundation and ground improvement contractors - We are passionate about ground engineering, foundations and all things…”

Source: RevenueBase Database · checked Sep 16, 2026
22Strong 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
23Indirect evidenceRepentigny, QC, CanadaHQ checked Sep 16, 2026201-500235 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceAs Sulimaniyah, Saudi ArabiaHQ checked Sep 16, 2026201-500229 contacts →

Indirect evidence

“Riyadh Geotechnique and Foundations (RGF) is a specialist engineering and contracting company established under the laws of the Kingdom of Saudi Arabia.”

Source: RevenueBase Database · checked Sep 16, 2026
25Strong 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

Showing 25 of 3,142 ground improvement contractors worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 14,577 reachable decision-makers.

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Ground improvement contractors worldwide at a glance

As of Sep 16, 2026
26.1%Verified-email coverage
17.8Average contacts per company
11-50Median size (employees)
1.8%Largest-city concentration · London
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
1,066
11-50
1,190
51-200
612
201-500
168
501-1,000
54
1,001-5,000
18
5,001-10,000
5
10001+
2

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.
Coverage
22 countries, largest first: the United Kingdom, the United States, Brazil, Germany, France, India, Australia, Italy, Türkiye, Canada and 12 more. Country and city lists for ground improvement contractors are linked below.
What qualifies
Companies worldwide 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.
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, 14,577 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.

Ground improvement contractors by location

22 lists · largest first

Every Ground improvement 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 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 worldwide?

RevenueBase identified 3,142 ground improvement contractors worldwide 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?

Keller, headquartered in London, tops this list with the largest team on record.

Which country has the most ground improvement contractors?

The United Kingdom leads with 764 companies, followed by the United States (468) and Brazil (371). Every ground improvement contractors list by country and city is linked on this page.

Which city has the most ground improvement contractors?

London leads with 57 headquartered companies, followed by Sao Paulo (50) and Dubai (35).

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 14,577 verified decision-maker contacts tracked across these 3,142 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.