Company lists · Data refreshed November 2026

Top 25 Geotechnical surveying services worldwide

Name: Geotechnical surveying services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 13,840 companies tracked

RevenueBase identified 13,840 company matches for geotechnical surveying services worldwide as of November 2026 and tracks 193,966 professional contacts across them, including 58,736 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for geotechnical surveying services 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 November 6, 2026. Country and city lists for geotechnical surveying services 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 Nov 6, 2026 How this list was built

13,840Companies

193,966Contacts tracked

58,736Verified emails

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The 25 largest geotechnical surveying services worldwide

Ranked by team size

Top 25 of 13,840 company matches for geotechnical surveying services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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, NE, United StatesHQ recorded Nov 6, 2026	5,001-10,000	6,576 contacts →
	Exact match “Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Keller	Exact match	London, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	4,408 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 · Nov 6, 2026 · View company records in RevenueBase
3	ECS Group Of Companies	Exact match	Chantilly, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,363 contacts →
	Exact match “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	SEP Engineers	Exact match	Skelmersdale, United KingdomHQ recorded Nov 6, 2026	n/a	1,855 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 · Nov 6, 2026 · View company records in RevenueBase
5	Pt. Surveyor Indonesia	Exact match	IndonesiaHQ recorded Nov 6, 2026	1,001-5,000	1,727 contacts →
	Exact match “Surveyor Indonesia was incepted on 1 August 1991.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	UES	Exact match	Orlando, FL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,694 contacts →
	Exact match “UES provides professional engineering, environmental, testing and inspection services to clients across the United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Arab Center For Engineering Studies	Exact match	Amman, JordanHQ recorded Nov 6, 2026	1,001-5,000	1,553 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 · Nov 6, 2026 · View company records in RevenueBase
8	Soletanche Bachy	Exact match	Rueil-malmaison, FranceHQ recorded Nov 6, 2026	5,001-10,000	1,306 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 · Nov 6, 2026 · View company records in RevenueBase
9	Cemosa	Exact match	Málaga, SpainHQ recorded Nov 6, 2026	1,001-5,000	1,030 contacts →
	Exact match “CEMOSA fue constituida en 1972 bajo la denominación mercantil “Centro de Estudios de Materiales y Control de obra, SA”.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	GZA Geoenvironmental, INC	Exact match	Norwood, MA, United StatesHQ recorded Nov 6, 2026	501-1,000	922 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 · Nov 6, 2026 · View company records in RevenueBase
11	Dywidag	Exact match	Unterschleißheim, GermanyHQ recorded Nov 6, 2026	1,001-5,000	837 contacts →
	Exact match “Here at DYWIDAG, our mission is to make structures safer, stronger, and smarter.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Professional Service Industries, Inc. PSI	Exact match	Arlington Heights, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	795 contacts →
	Exact match “Intertek, a leading provider of quality solutions to industries around the world, has completed the acquisition of Professional Service Industries, Inc.(PSI), a leading…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Schnabel Engineering	Exact match	Glen Allen, VA, United StatesHQ recorded Nov 6, 2026	501-1,000	767 contacts →
	Exact match “Schnabel is a trusted partner in building the foundation for project success.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Sondotécnica Engenharia	Exact match	Rio De Janeiro, BrazilHQ recorded Nov 6, 2026	201-500	696 contacts →
	Exact match “Sondotécnica was founded in 1954.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Laboratoire Public D'essais ET D'etudes Lpee	Exact match	n/a	n/a	642 contacts →
	Exact match “Le Laboratoire Public d'Essais et d'Etudes (LPEE) dont la genèse remonte à 1947, est une entreprise publique au statut juridique actuel de société anonyme.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Raba Kistner, INC	Exact match	San Antonio, UT, United StatesHQ recorded Nov 6, 2026	501-1,000	612 contacts →
	Exact match “Founded in 1968, Raba Kistner Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Gardline Limited	Exact match	Great Yarmouth, United KingdomHQ recorded Nov 6, 2026	501-1,000	557 contacts →
	Exact match “Gardline is a best-in-class provider of geophysical, geotechnical and environmental marine surveys.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Nova Engineering And Environmental, LLC	Exact match	Kennesaw, FL, United StatesHQ recorded Nov 6, 2026	501-1,000	541 contacts →
	Exact match “Established in 1996, NOVA was originally founded to provide Environmental Consulting, Geotechnical Engineering, and Construction Materials Testing and Inspection services to the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Groundprobe	Exact match	Brisbane, AustraliaHQ recorded Nov 6, 2026	201-500	524 contacts →
	Exact match “Orica Digital Solutions seamlessly connect our customers’ physical and digital worlds so they can readily understand and optimize their operations at every step of the value…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Tectonic Engineering Consultants, Geologists & Land Surveyors, D.P.C	Exact match	Mountainville, United StatesHQ recorded Nov 6, 2026	501-1,000	518 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Geo-Technology Associates, Inc. GTA	Exact match	Abingdon, OH, United KingdomHQ recorded Nov 6, 2026	501-1,000	503 contacts →
	Exact match “Geo-Technology Associates, Inc.(GTA) proudly celebrates more than 40 years of service, backed by a team of 600+ professionals-including geotechnical engineers, environmental…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Groupe Géotec	Exact match	Quetigny, FranceHQ recorded Nov 6, 2026	501-1,000	499 contacts →
	Exact match “Groupe Géotec, bureau d’études en ingénierie géotechnique et environnementale, créé en 1973, conseille l’ensemble des interlocuteurs de l’acte de construire : maîtres d’ouvrage…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	GEO	Exact match	Kgs. Lyngby (copenhagen), DenmarkHQ recorded Nov 6, 2026	201-500	497 contacts →
	Exact match “Founded in 1943, Geo is a market leading engineering consultancy company and contractor, specialised within the fields of geotechnical and environmental engineering (geoteknik og…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Entact, LLC	Exact match	Westmont, IL, United StatesHQ recorded Nov 6, 2026	501-1,000	495 contacts →
	Exact match “ENTACT is the partner of choice in solving our customer's most complex environmental remediation and geotechnical infrastructure challenges.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Douglas Partners	Exact match	West Ryde, AustraliaHQ recorded Nov 6, 2026	501-1,000	491 contacts →
	Exact match “Welcome to Douglas Partners Pty Ltd, a leading engineering consultancy specialising in geotechnics, rock mechanics, environment, groundwater, earthworks and geophysics.” Recorded in the RevenueBase company graph · Nov 6, 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 surveying services”. 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 13,840 geotechnical surveying services worldwide

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Geotechnical surveying services worldwide at a glance

As of Nov 6, 2026

30.3%Verified-email coverage

14.0Average contacts per company

1-10Median size (employees)

0.9%Largest-city concentration · Sao Paulo

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

6,925

11-50

4,696

51-200

1,549

201-500

314

501-1,000

1,001-5,000

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 surveying services are linked below.
What qualifies: Company records worldwide whose business descriptions match “geotechnical surveying services” 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 58,736 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 November 6, 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 surveying services by location

50 lists · largest first

Every Geotechnical surveying services 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 surveying services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geotechnical surveying services are there worldwide?

RevenueBase identified 13,840 company matches for geotechnical surveying services worldwide as of November 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 surveying services?

The United States leads with 2,382 companies, followed by Brazil (1,134) and the United Kingdom (936). Every geotechnical surveying services list by country and city is linked on this page.

Which city has the most geotechnical surveying services?

Sao Paulo leads with 122 company records, followed by Belo Horizonte (113) and Lima (72).

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 58,736 professional contacts with verified work emails tracked across these 13,840 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 November 6, 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 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.