Company lists · Data refreshed September 2026

Top 25 Geotechnical engineering companies worldwide

Name: Geotechnical engineering companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 14,991 companies tracked

RevenueBase identified 14,991 geotechnical engineering companies worldwide as of September 2026 and tracks 239,946 professional contacts across them, including 72,394 with verified work emails and 31,821 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers geotechnical engineering companies 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 6, 2026. Country and city lists for geotechnical engineering companies 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 6, 2026 86% judged on-target in blind review

14,991Companies

239,946Contacts tracked

72,394Verified emails

31,821Mobile numbers

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The 25 largest geotechnical engineering companies worldwide

Ranked by team size

Top 25 of 14,991 geotechnical engineering companies worldwide, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to geotechnical engineering companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Terracon	Partial evidence	Olathe, KS, United StatesHQ checked Sep 6, 2026	5,001-10,000	6,113 contacts →
	Partial evidence “Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Source: RevenueBase Database · checked Sep 6, 2026
2	Keller	Partial evidence	London, United KingdomHQ checked Sep 6, 2026	5,001-10,000	3,960 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 6, 2026
3	ECS Group Of Companies	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 6, 2026	1,001-5,000	2,210 contacts →
	Partial evidence “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Source: RevenueBase Database · checked Sep 6, 2026
4	Bouygues Travaux Publics	Indirect evidence	Saint-quentin-en-yvelines Cedex, FranceHQ checked Sep 6, 2026	10001+	1,850 contacts →
	Indirect 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 6, 2026
5	SEP Engineers	Partial evidence	Skelmersdale, United KingdomHQ checked Sep 6, 2026	n/a	1,837 contacts →
	Partial 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 6, 2026
6	UES	Partial evidence	Orlando, FL, United StatesHQ checked Sep 6, 2026	1,001-5,000	1,595 contacts →
	Partial evidence “UES provides professional engineering, environmental, testing and inspection services to clients across the United States.” Source: RevenueBase Database · checked Sep 6, 2026
7	Toniolo, Busnello SA	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 6, 2026	1,001-5,000	1,271 contacts →
	Indirect evidence “A Toniolo, Busnello S.A.” Source: RevenueBase Database · checked Sep 6, 2026
8	Milicic SA	Indirect evidence	Rosario, ArgentinaHQ checked Sep 6, 2026	1,001-5,000	1,269 contacts →
	Indirect 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 6, 2026
9	Soletanche Bachy	Indirect evidence	Rueil-malmaison, FranceHQ checked Sep 6, 2026	5,001-10,000	1,222 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 6, 2026
10	Timmons Group	Partial evidence	Richmond, VA, United StatesHQ checked Sep 6, 2026	1,001-5,000	1,066 contacts →
	Partial evidence “Timmons Group is an engineering & technology firm specializing in civil, environmental, GIS, and surveying services to clients across the US.” Source: RevenueBase Database · checked Sep 6, 2026
11	GZA Geoenvironmental, INC	Indirect evidence	Norwood, MA, United StatesHQ checked Sep 6, 2026	501-1,000	880 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 6, 2026
12	Klohn Crippen Berger	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 6, 2026	501-1,000	871 contacts →
	Partial evidence “KCB is a global engineering, geosciences, and environmental consulting firm driven by Passion, Integrity and a commitment to Excellence.” Source: RevenueBase Database · checked Sep 6, 2026
13	Tecnosonda S A	Strong evidence	Rio De Janeiro, BrazilHQ checked Sep 6, 2026	1,001-5,000	862 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 6, 2026
14	Ingenieria Civil Vicente	Indirect evidence	Santiago, ChileHQ checked Sep 6, 2026	1,001-5,000	848 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 6, 2026
15	BGC Engineering INC	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 6, 2026	501-1,000	798 contacts →
	Partial evidence “BGC Engineering is an international consulting firm that provides professional services in applied earth sciences.” Source: RevenueBase Database · checked Sep 6, 2026
16	Dilip Buildcon LTD	Partial evidence	Bhopal, IndiaHQ checked Sep 6, 2026	201-500	791 contacts →
	Partial evidence “Dilip Buildcon Ltd is a Civil Engineering company located in Bhopal, MP, India.” Source: RevenueBase Database · checked Sep 6, 2026
17	Dywidag	Indirect evidence	Unterschleißheim, GermanyHQ checked Sep 6, 2026	1,001-5,000	787 contacts →
	Indirect evidence “Here at DYWIDAG, our mission is to make structures safer, stronger, and smarter.” Source: RevenueBase Database · checked Sep 6, 2026
18	Professional Service Industries, Inc. PSI	Indirect evidence	Arlington Heights, IL, United StatesHQ checked Sep 6, 2026	1,001-5,000	778 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 6, 2026
19	Schnabel Engineering	Indirect evidence	Glen Allen, VA, United StatesHQ checked Sep 6, 2026	501-1,000	707 contacts →
	Indirect evidence “Schnabel is a trusted partner in building the foundation for project success.” Source: RevenueBase Database · checked Sep 6, 2026
20	Tower Engineering Professionals	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 6, 2026	1,001-5,000	707 contacts →
	Indirect evidence “Tower Engineer Professionals was founded in 1997 by two tower-climbing engineers.” Source: RevenueBase Database · checked Sep 6, 2026
21	Trevi S.P.A	Partial evidence	Cesena, ItalyHQ checked Sep 6, 2026	201-500	620 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 6, 2026
22	Seel Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 6, 2026	501-1,000	612 contacts →
	Indirect evidence “Somos uma construtora especializada em obras de Infraestrutura e que possui uma unidade própria de Geotecnia.” Source: RevenueBase Database · checked Sep 6, 2026
23	Sondotécnica Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 6, 2026	201-500	588 contacts →
	Indirect evidence “Sondotécnica was founded in 1954.” Source: RevenueBase Database · checked Sep 6, 2026
24	Raba Kistner, INC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 6, 2026	501-1,000	582 contacts →
	Indirect evidence “Founded in 1968, Raba Kistner Inc.” Source: RevenueBase Database · checked Sep 6, 2026
25	Construtora Vale Verde S A	Indirect evidence	Itabira, BrazilHQ checked Sep 6, 2026	1,001-5,000	555 contacts →
	Indirect evidence “A Construtora Vale Verde é uma empresa inovadora que concentra a sua expertise na atuação em soluções para construção civil pesada com serviços de dragagem convencional e…” Source: RevenueBase Database · checked Sep 6, 2026

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: geotechnical engineering 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 geotechnical engineering companies.
Partial evidence: Its own public description names part of geotechnical engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geotechnical engineering 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 14,991 geotechnical engineering companies worldwide

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Geotechnical engineering companies worldwide at a glance

As of Sep 6, 2026

30.2%Verified-email coverage

13.3%Mobile-number coverage

16.0Average contacts per company

11-50Median size (employees)

1.7%Largest-city concentration · Sao Paulo

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

7,383

11-50

5,134

51-200

1,739

201-500

426

501-1,000

127

1,001-5,000

5,001-10,000

10001+

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 engineering 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.
Coverage: 42 countries, largest first: the United States, Brazil, the United Kingdom, Germany, Italy, France, Australia, India, Canada, Türkiye and 32 more. Country and city lists for geotechnical engineering companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “geotechnical engineering 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 geotechnical engineering 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 geotechnical engineering companies, 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, 72,394 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 between September 6, 2026 and September 14, 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 engineering companies by location

76 lists · largest first

Every Geotechnical engineering companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

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 engineering 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 geotechnical engineering companies are there worldwide?

RevenueBase identified 14,991 geotechnical engineering companies 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?

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

Which country has the most geotechnical engineering companies?

The United States leads with 2,974 companies, followed by Brazil (1,799) and the United Kingdom (1,023). Every geotechnical engineering companies list by country and city is linked on this page.

Which city has the most geotechnical engineering companies?

Sao Paulo leads with 255 headquartered companies, followed by Belo Horizonte (166) and Rio De Janeiro (109).

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 72,394 verified decision-maker contacts tracked across these 14,991 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 6, 2026 and September 14, 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.