Company lists · Data refreshed September 2026

Top 25 Geotechnical engineering consultants worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 37,967 companies tracked

RevenueBase identified 37,967 geotechnical engineering consultants worldwide as of September 2026 and tracks 547,184 professional contacts across them, including 158,955 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers geotechnical engineering consultants 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 21, 2026. Country and city lists for geotechnical engineering consultants 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 21, 2026 86% judged on-target in blind review

37,967Companies

547,184Contacts tracked

158,955Verified emails

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The 25 largest geotechnical engineering consultants worldwide

Ranked by team size

Top 25 of 37,967 geotechnical engineering consultants worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to geotechnical engineering consultants: 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 21, 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 21, 2026
2	Keller	Partial evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
3	Golder	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 21, 2026	5,001-10,000	3,167 contacts →
	Indirect evidence “Golder was acquired by WSP.” Source: RevenueBase Database · checked Sep 21, 2026
4	Multiconsult	Indirect evidence	Oslo, NorwayHQ checked Sep 21, 2026	1,001-5,000	2,553 contacts →
	Indirect evidence “Multiconsult Norway is one of the leading firms of architectures, consulting engineers and designers in Norway.” Source: RevenueBase Database · checked Sep 21, 2026
5	ECS Group Of Companies	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 21, 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 21, 2026
6	Bouygues Travaux Publics	Indirect evidence	Saint-quentin-en-yvelines Cedex, FranceHQ checked Sep 21, 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 21, 2026
7	SEP Engineers	Partial evidence	Skelmersdale, United KingdomHQ checked Sep 21, 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 21, 2026
8	Bowman Consulting	Partial evidence	Reston, VA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,666 contacts →
	Partial evidence “Headquartered in Reston, Virginia, Bowman is a national engineering services firm delivering infrastructure solutions to customers who own, develop and maintain the built…” Source: RevenueBase Database · checked Sep 21, 2026
9	UES	Partial evidence	Orlando, FL, United StatesHQ checked Sep 21, 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 21, 2026
10	Freyssinet	Partial evidence	Rueil-malmaison, FranceHQ checked Sep 21, 2026	5,001-10,000	1,514 contacts →
	Partial 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 21, 2026
11	Arab Center For Engineering Studies	Strong evidence	Amman, JordanHQ checked Sep 21, 2026	1,001-5,000	1,476 contacts →
	Strong evidence “At ACES, we offer a wide range of specialized engineering services including site and geotechnical investigation, materials technology and testing, quality control of projects…” Source: RevenueBase Database · checked Sep 21, 2026
12	Partner Engineering & Science, INC	Indirect evidence	Torrance, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,358 contacts →
	Indirect evidence “Partner Assessment Corp.” Source: RevenueBase Database · checked Sep 21, 2026
13	GPI Greenman-Pedersen, INC	Partial evidence	Melville, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,354 contacts →
	Partial evidence “With a staff of over 1,800 professionals, Greenman-Pedersen, Inc.(GPI) is a leading engineering consulting firm that specializes in the innovative design and construction of…” Source: RevenueBase Database · checked Sep 21, 2026
14	Walter P Moore	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,298 contacts →
	Indirect evidence “Welcome to Walter P Moore!” Source: RevenueBase Database · checked Sep 21, 2026
15	Atwell, LLC	Partial evidence	Southfield, MI, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,290 contacts →
	Partial evidence “Atwell is a full-service consulting, engineering and construction services firm that delivers a broad range of creative solutions to clients in the real estate and land…” Source: RevenueBase Database · checked Sep 21, 2026
16	Toniolo, Busnello SA	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 21, 2026	1,001-5,000	1,271 contacts →
	Indirect evidence “A Toniolo, Busnello S.A.” Source: RevenueBase Database · checked Sep 21, 2026
17	Milicic SA	Indirect evidence	Rosario, ArgentinaHQ checked Sep 21, 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 21, 2026
18	Intercontinental Consultants And Technocrats Pvt. LTD	Strong evidence	New Delhi, IndiaHQ checked Sep 21, 2026	1,001-5,000	1,248 contacts →
	Strong evidence “A multi disciplinary engineering consultancy organisation, headquartered in New Delhi, India providing solutions globally.” Source: RevenueBase Database · checked Sep 21, 2026
19	Knight Piesold	Indirect evidence	Denver, CO, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,231 contacts →
	Indirect evidence “Knight Piésold is an employee-owned, global consulting firm providing specialist services to the mining, power, water resources, and infrastructure industries.” Source: RevenueBase Database · checked Sep 21, 2026
20	Soletanche Bachy	Indirect evidence	Rueil-malmaison, FranceHQ checked Sep 21, 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 21, 2026
21	Volkert, INC	Indirect evidence	Mobile, AL, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,199 contacts →
	Indirect evidence “Volkert’s history began in 1925 when it was founded in New Orleans as Doullut & Erwin to provide waterfront and heavy construction services, as well as airport design services…” Source: RevenueBase Database · checked Sep 21, 2026
22	Rimkus	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,184 contacts →
	Partial evidence “Consultants.” Source: RevenueBase Database · checked Sep 21, 2026
23	Timmons Group	Partial evidence	Richmond, VA, United StatesHQ checked Sep 21, 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 21, 2026
24	Tonkin Taylor	Indirect evidence	Auckland Central, New ZealandHQ checked Sep 21, 2026	1,001-5,000	958 contacts →
	Indirect evidence “At Tonkin + Taylor, we’re dedicated to creating and sustaining a better world together.” Source: RevenueBase Database · checked Sep 21, 2026
25	Cemosa	Indirect evidence	Málaga, SpainHQ checked Sep 21, 2026	1,001-5,000	943 contacts →
	Indirect evidence “CEMOSA fue constituida en 1972 bajo la denominación mercantil “Centro de Estudios de Materiales y Control de obra, SA”.” Source: RevenueBase Database · checked Sep 21, 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 consultants. 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 consultants.
Partial evidence: Its own public description names part of geotechnical engineering consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geotechnical engineering consultants. 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 37,967 geotechnical engineering consultants worldwide

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Geotechnical engineering consultants worldwide at a glance

As of Sep 21, 2026

29.0%Verified-email coverage

14.4Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · Sao Paulo

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

19,209

11-50

12,744

51-200

4,255

201-500

1,010

501-1,000

293

1,001-5,000

178

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 consultants, 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: Every country. Country and city lists for geotechnical engineering consultants are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “geotechnical engineering consultants”. 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 consultants), 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 consultants, 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, 158,955 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 21, 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 consultants by location

138 lists · largest first

Every Geotechnical engineering consultants 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 consultants, 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 consultants are there worldwide?

RevenueBase identified 37,967 geotechnical engineering consultants 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 consultants?

The United States leads with 6,479 companies, followed by Brazil (3,298) and the United Kingdom (2,112). Every geotechnical engineering consultants list by country and city is linked on this page.

Which city has the most geotechnical engineering consultants?

Sao Paulo leads with 469 headquartered companies, followed by Belo Horizonte (281) and London (271).

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 158,955 verified decision-maker contacts tracked across these 37,967 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 21, 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.