Company lists · Data refreshed September 2026

Geotechnical construction firms: the worldwide list

RevenueBase identified 19,914 geotechnical construction firms across the 43 countries with a published list, as of September 2026, and tracks 312,108 professional contacts across them, including 83,884 with verified work emails and 0 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This is the worldwide list of geotechnical construction firms: the 43 country lists RevenueBase publishes for the category, summed and ranked as one. The company count is that sum, not a census of every company on earth; a country with no published list is not counted. 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
19,914Companies
312,108Contacts tracked
83,884Verified emails
0Mobile numbers
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The 25 largest geotechnical construction firms across the 43 countries with a published list

Ranked by team size
Top 25 of 19,914 geotechnical construction firms across the 43 countries with a published list, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to geotechnical construction firms: 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 evidenceOlathe, KS, United StatesHQ checked Sep 16, 20265,001-10,0006,113 contacts →

Indirect evidence

“Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceLondon, United KingdomHQ checked Sep 16, 20265,001-10,0003,960 contacts →

Partial 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
3Indirect evidenceMumbai, IndiaHQ checked Sep 16, 20261,001-5,0002,620 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceChantilly, VA, United StatesHQ checked Sep 16, 20261,001-5,0002,210 contacts →

Indirect evidence

“ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.”

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceMonroe, OH, United StatesHQ checked Sep 16, 202610001+2,019 contacts →

Partial evidence

“The nation's largest concrete contractor, Baker Construction specializes in all types of concrete construction and related solutions, including civil construction, deep…”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceSaint-quentin-en-yvelines Cedex, FranceHQ checked Sep 16, 202610001+1,850 contacts →

Partial evidence

“CONSTRUIRE DES INFRASTRUCTURES DURABLES Bouygues TP est l’un des leaders mondiaux dans les domaines de l’aménagement du territoire et de la construction d’infrastructures durables.”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceSkelmersdale, United KingdomHQ checked Sep 16, 2026n/a1,837 contacts →

Indirect evidence

“Established in 1986, SEP has been the industry’s leader for site engineering, surveying and management solutions for over thirty years, providing vital services, resources and…”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceMatias Barbosa, BrazilHQ checked Sep 16, 20261,001-5,0001,614 contacts →

Indirect evidence

“Há mais de 50 anos, a U&M Mineração e Construção S/A vem movendo não apenas terra e rocha, mas também sonhos e conquistas.”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceBelo Horizonte, BrazilHQ checked Sep 16, 20261,001-5,0001,529 contacts →

Indirect evidence

“A Construtora Ápia está classificada entre as principais empresas de construção pesada do país.”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceRueil-malmaison, FranceHQ checked Sep 16, 20265,001-10,0001,514 contacts →

Indirect evidence

“Founded over 70 years ago by Eugène Freyssinet, the inventor of prestressing, Freyssinet brings together an unrivalled range of skills in the specialist civil engineering sector…”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidencePorto Alegre, BrazilHQ checked Sep 16, 20261,001-5,0001,271 contacts →

Indirect evidence

“A Toniolo, Busnello S.A.”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceRosario, ArgentinaHQ checked Sep 16, 20261,001-5,0001,269 contacts →

Partial evidence

“We are an Argentine construction and services company with 50 years of experience in large-scale projects that have supported the development of key productive sectors.”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceL'ancienne-lorette, CanadaHQ checked Sep 16, 20261,001-5,0001,232 contacts →

Indirect evidence

“EBC is a family business founded in 1968 by Fernand Houle and his brother Germain.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect 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
15Indirect evidenceSantiago, ChileHQ checked Sep 16, 20261,001-5,0001,167 contacts →

Indirect evidence

“Ingeniería y Construcción Vial y Vives SA es una empresa con mas de 30 años de experiencia en la construcción de Obras Civiles y Montaje Electromecánico.”

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceAnjar Anjar, IndiaHQ checked Sep 16, 202610001+1,144 contacts →

Partial evidence

“MKC is one of the leading and premier construction company actively engaged in large scale projects and specialized nature of construction with enormous resources and experience…”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceSão Paulo, BrazilHQ checked Sep 16, 20261,001-5,0001,036 contacts →

Indirect evidence

“No mercado desde 2007, atuamos em todo território nacional com foco no segmento industrial e na construção de parcerias a longo prazo, oferecendo diversos tipos de soluções e…”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceNorwood, MA, United StatesHQ checked Sep 16, 2026501-1,000880 contacts →

Indirect evidence

“Founded in 1964 as a soils and foundations specialty consultant, GZA GeoEnvironmental, Inc.(GZA) has grown into a full-service company providing its clients with highly…”

Source: RevenueBase Database · checked Sep 16, 2026
19Strong evidenceRio De Janeiro, BrazilHQ checked Sep 16, 20261,001-5,000862 contacts →

Strong evidence

“Tecnosonda is an engineering company founded in 1968, which operates in the areas of Geotechnics, Foundations, Civil Construction, Electromechanics, and Industrial Maintenance.”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceSantiago, ChileHQ checked Sep 16, 20261,001-5,000848 contacts →

Indirect evidence

“Más de 60 años aportando al país, a través de servicios integrales para la gran minería, movimiento de tierras masivos y obras de ingeniería civil.”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceJakarta Timur, IndonesiaHQ checked Sep 16, 20265,001-10,000801 contacts →

Indirect evidence

“Hillcon was founded in 1995.”

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidenceVancouver, BC, CanadaHQ checked Sep 16, 2026501-1,000798 contacts →

Indirect evidence

“BGC Engineering is an international consulting firm that provides professional services in applied earth sciences.”

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect 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
24Indirect evidenceArlington Heights, IL, United StatesHQ checked Sep 16, 20261,001-5,000778 contacts →

Indirect evidence

“Intertek, a leading provider of quality solutions to industries around the world, has completed the acquisition of Professional Service Industries, Inc.(PSI), a leading…”

Source: RevenueBase Database · checked Sep 16, 2026
25Indirect evidenceTarascon, FranceHQ checked Sep 16, 2026n/a722 contacts →

Indirect evidence

“Nous intervenons sur des chantiers techniquement complexes dont la technicité nécessite la mise en synergie de nombreuses compétences : infrastructures de transport (ouvrages…”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 19,914 geotechnical construction firms across the 43 countries with a published list

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Geotechnical construction firms worldwide at a glance

As of Sep 16, 2026
26.9%Verified-email coverage
15.7Average contacts per company
11-50Median size (employees)
1.5%Largest-city concentration · Sao Paulo
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
7,966
11-50
7,218
51-200
3,265
201-500
865
501-1,000
237
1,001-5,000
98
5,001-10,000
27
10001+
15

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 geotechnical construction firms, 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
This worldwide list is the sum of the 43 country lists RevenueBase publishes for geotechnical construction firms, largest first: the United States, Brazil, the United Kingdom, Germany, Australia, Italy, Canada, France, India, the Netherlands and 33 more. Its company and contact totals add up those lists, so they understate the true worldwide figures: a country with no published list is not counted. The ranked table is exact across the countries covered, the largest companies of every country list ranked together with duplicates removed.
What qualifies
Companies worldwide whose own description of what they do matches “geotechnical construction firms”. 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 geotechnical construction firms), 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 geotechnical construction firms, 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, 83,884 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
The country lists behind this page 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.

Geotechnical construction firms by location

68 lists · largest first

Every Geotechnical construction firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date; the worldwide figures above are the sum of the 43 country lists.

Countries

Cities

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 geotechnical construction firms, 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 geotechnical construction firms are there worldwide?

RevenueBase identified 19,914 geotechnical construction firms across the 43 countries with a published list, as of September 2026, matched on each company's own description of what it does rather than its industry code. The figure is the sum of those country lists, not a census of every company worldwide.

What is the largest company on this list?

Terracon, headquartered in Olathe, tops this list with the largest team on record.

Which country has the most geotechnical construction firms?

The United States leads with 4,553 companies, followed by Brazil (2,210) and the United Kingdom (1,343). Every country with a published geotechnical construction firms list is linked on this page.

Which city has the most geotechnical construction firms?

Sao Paulo leads with 298 headquartered companies, followed by Belo Horizonte (180) and London (118).

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 83,884 verified decision-maker contacts tracked across these 19,914 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. The country lists behind this page were pulled from the company graph 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.