Company lists · Data refreshed September 2026

Top 25 Geotechnical engineering staffing companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 20,118 companies tracked

RevenueBase identified 20,118 company matches for geotechnical engineering staffing companies worldwide as of September 2026 and tracks 327,804 professional contacts across them, including 92,379 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for geotechnical engineering staffing companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026. Country and city lists for geotechnical engineering staffing companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

20,118Companies

327,804Contacts tracked

92,379Verified emails

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The 25 largest geotechnical engineering staffing companies worldwide

Ranked by team size

Top 25 of 20,118 company matches for geotechnical engineering staffing companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Terracon	Exact match	Olathe, KS, United StatesHQ recorded Sep 28, 2026	5,001-10,000	6,113 contacts →
	Exact match “Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Keller	Exact match	London, United KingdomHQ recorded Sep 28, 2026	5,001-10,000	3,960 contacts →
	Exact match “Every day, people around the world live, work and play on ground prepared by Keller, the world's largest geotechnical specialist contractor.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Golder	Exact match	Vancouver, BC, CanadaHQ recorded Sep 28, 2026	5,001-10,000	3,167 contacts →
	Exact match “Golder was acquired by WSP.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	ECS Group Of Companies	Exact match	Chantilly, VA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,210 contacts →
	Exact match “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Bouygues Travaux Publics	Exact match	Saint-quentin-en-yvelines Cedex, FranceHQ recorded Sep 28, 2026	10001+	1,850 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	SEP Engineers	Exact match	Skelmersdale, United KingdomHQ recorded Sep 28, 2026	n/a	1,837 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Bowman Consulting	Exact match	Reston, VA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,666 contacts →
	Exact match “Headquartered in Reston, Virginia, Bowman is a national engineering services firm delivering infrastructure solutions to customers who own, develop and maintain the built…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	UES	Exact match	Orlando, FL, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,595 contacts →
	Exact match “UES provides professional engineering, environmental, testing and inspection services to clients across the United States.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	RENCO	Exact match	Pesaro, ItalyHQ recorded Sep 28, 2026	1,001-5,000	1,494 contacts →
	Exact match “Renco S.p.A, an Italian company founded in 1979, is continually committed to providing its Clients with sound business solutions in an ever increasingly complex and challenging…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Arab Center For Engineering Studies	Exact match	Amman, JordanHQ recorded Sep 28, 2026	1,001-5,000	1,476 contacts →
	Exact match “At ACES, we offer a wide range of specialized engineering services including site and geotechnical investigation, materials technology and testing, quality control of projects…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Toniolo, Busnello SA	Exact match	Porto Alegre, BrazilHQ recorded Sep 28, 2026	1,001-5,000	1,271 contacts →
	Exact match “A Toniolo, Busnello S.A.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Milicic SA	Exact match	Rosario, ArgentinaHQ recorded Sep 28, 2026	1,001-5,000	1,269 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Construction Labor Contractors	Exact match	Round Rock, TX, United StatesHQ recorded Sep 28, 2026	501-1,000	1,234 contacts →
	Exact match “Let us make construction staffing work for you.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Soletanche Bachy	Exact match	Rueil-malmaison, FranceHQ recorded Sep 28, 2026	5,001-10,000	1,222 contacts →
	Exact match “Soletanche Bachy is a world benchmark in foundations and soil technologies, and is involved in over projects every year.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Contech Engineered Solutions	Exact match	West Chester, OH, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,217 contacts →
	Exact match “Contech provides innovative, cost-effective site solutions to engineers, contractors, and developers on projects across North America.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	TRS Staffing Solutions	Exact match	Greenville, United StatesHQ recorded Sep 28, 2026	201-500	1,187 contacts →
	Exact match “TRS Staffing Solutions is a world leading engineering recruitment agency specialising in the recruitment and supply of professional, engineering, technical and field talent.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Timmons Group	Exact match	Richmond, VA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,066 contacts →
	Exact match “Timmons Group is an engineering & technology firm specializing in civil, environmental, GIS, and surveying services to clients across the US.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	M. N. Dastur & Co. P LTD	Exact match	Kolkata, IndiaHQ recorded Sep 28, 2026	1,001-5,000	894 contacts →
	Exact match “M.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	GZA Geoenvironmental, INC	Exact match	Norwood, MA, United StatesHQ recorded Sep 28, 2026	501-1,000	880 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Klohn Crippen Berger	Exact match	Vancouver, BC, CanadaHQ recorded Sep 28, 2026	501-1,000	871 contacts →
	Exact match “KCB is a global engineering, geosciences, and environmental consulting firm driven by Passion, Integrity and a commitment to Excellence.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Tecnosonda S A	Exact match	Rio De Janeiro, BrazilHQ recorded Sep 28, 2026	1,001-5,000	862 contacts →
	Exact match “Tecnosonda is an engineering company founded in 1968, which operates in the areas of Geotechnics, Foundations, Civil Construction, Electromechanics, and Industrial Maintenance.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Ingenieria Civil Vicente	Exact match	Santiago, ChileHQ recorded Sep 28, 2026	1,001-5,000	848 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	JKS A S	Exact match	Ringkøbing, DenmarkHQ recorded Sep 28, 2026	1,001-5,000	822 contacts →
	Exact match “We are JKS.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	BGC Engineering INC	Exact match	Vancouver, BC, CanadaHQ recorded Sep 28, 2026	501-1,000	798 contacts →
	Exact match “BGC Engineering is an international consulting firm that provides professional services in applied earth sciences.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Dywidag	Exact match	Unterschleißheim, GermanyHQ recorded Sep 28, 2026	1,001-5,000	787 contacts →
	Exact match “Here at DYWIDAG, our mission is to make structures safer, stronger, and smarter.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “geotechnical engineering staffing companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 20,118 geotechnical engineering staffing companies worldwide

See the full list, filter by size, metro and specialty, and access 92,379 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geotechnical engineering staffing companies worldwide at a glance

As of Sep 28, 2026

28.2%Verified-email coverage

16.3Average contacts per company

11-50Median size (employees)

1.3%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

9,709

11-50

6,616

51-200

2,626

201-500

658

501-1,000

232

1,001-5,000

132

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for geotechnical engineering staffing companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “geotechnical engineering staffing companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 92,379 professional contacts with verified work emails across the full matched dataset. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Geotechnical engineering staffing companies by location

87 lists · largest first

Every Geotechnical engineering staffing 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “geotechnical engineering staffing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geotechnical engineering staffing companies are there worldwide?

RevenueBase identified 20,118 company matches for geotechnical engineering staffing companies worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Terracon tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most geotechnical engineering staffing companies?

The United States leads with 4,059 companies, followed by the United Kingdom (1,580) and Brazil (1,404). Every geotechnical engineering staffing companies list by country and city is linked on this page.

Which city has the most geotechnical engineering staffing companies?

London leads with 252 company records, followed by Sao Paulo (210) and Belo Horizonte (144).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 92,379 professional contacts with verified work emails tracked across these 20,118 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 20,118 geotechnical engineering staffing companies worldwide. Start with a free account, no credit card.

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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 SmartSearch, 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.