Company lists · Data refreshed September 2026

Top 25 Geological survey services worldwide

Name: Geological survey services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 10,724 companies tracked

RevenueBase identified 10,724 geological survey services worldwide as of September 2026 and tracks 127,196 professional contacts across them, including 33,213 with verified work emails. The United States is the largest market and Belo Horizonte the largest hub.

This list covers geological survey services 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 19, 2026. Country and city lists for geological survey services 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 19, 2026 86% judged on-target in blind review

10,724Companies

127,196Contacts tracked

33,213Verified emails

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The 25 largest geological survey services worldwide

Ranked by team size

Top 25 of 10,724 geological survey services worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to geological survey services: 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	FUGRO	Indirect evidence	Leidschendam, NetherlandsHQ checked Sep 19, 2026	10001+	8,248 contacts →
	Indirect evidence “We are the world’s leading Geo-data specialist, collecting and analysing comprehensive information about the Earth and the structures built upon it.” Source: RevenueBase Database · checked Sep 19, 2026
2	SRK Consulting	Indirect evidence	Vancouver, CanadaHQ checked Sep 19, 2026	1,001-5,000	2,259 contacts →
	Indirect evidence “SRK Consulting is an independent, international group providing specialised consultancy services.” Source: RevenueBase Database · checked Sep 19, 2026
3	Pt. Surveyor Indonesia	Partial evidence	IndonesiaHQ checked Sep 19, 2026	1,001-5,000	1,537 contacts →
	Partial evidence “Surveyor Indonesia was incepted on 1 August 1991.” Source: RevenueBase Database · checked Sep 19, 2026
4	Geosol Geologia E Sondagens S.A	Partial evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	1,001-5,000	1,317 contacts →
	Partial evidence “One of the leading geology companies in the world, GEOSOL excels in the undertaking of geological drilling and mineral engineering programs.” Source: RevenueBase Database · checked Sep 19, 2026
5	BGP	Indirect evidence	Hebei, ChinaHQ checked Sep 19, 2026	10001+	1,160 contacts →
	Indirect evidence “BGP is one of the world's leading geophysical service companies, delivering a wide range of technologies, services and equipment to the oil and gas industry worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
6	Capital Limited	Indirect evidence	Mauritius, AustriaHQ checked Sep 19, 2026	1,001-5,000	994 contacts →
	Indirect evidence “Capital Limited is a leading service provider for the exploration and mining industry.” Source: RevenueBase Database · checked Sep 19, 2026
7	BGC Engineering INC	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 19, 2026	501-1,000	798 contacts →
	Indirect evidence “BGC Engineering is an international consulting firm that provides professional services in applied earth sciences.” Source: RevenueBase Database · checked Sep 19, 2026
8	Sigma S.A. Chile	Indirect evidence	Santiago, ChileHQ checked Sep 19, 2026	201-500	757 contacts →
	Indirect evidence “Somos una empresa de excelencia que desarrolla servicios integrales de Estudios Eléctricos, ingeniería, montaje industrial, geomensura, apoyo profesional, inspección técnica y…” Source: RevenueBase Database · checked Sep 19, 2026
9	IMDEX	Indirect evidence	Perth, AustraliaHQ checked Sep 19, 2026	501-1,000	707 contacts →
	Indirect evidence “With more than 600 years of collective geoscience expertise, provided by more than 40 experts, we deliver unparalleled tenure and expertise across the global mining technology…” Source: RevenueBase Database · checked Sep 19, 2026
10	Seequent	Indirect evidence	Christchurch, New ZealandHQ checked Sep 19, 2026	501-1,000	696 contacts →
	Indirect evidence “Seequent, The Bentley Subsurface Company, helps organisations to understand the underground, giving them the confidence to make better decisions faster.” Source: RevenueBase Database · checked Sep 19, 2026
11	Pt. Anindya Wiraputra Konsult	Partial evidence	Jakarta, IndonesiaHQ checked Sep 19, 2026	1,001-5,000	623 contacts →
	Partial evidence “ANINDYA is an independent surveying company that provides quality and quantity superintending service for the coal and minerals industry, the oil and gas sector as well as marine…” Source: RevenueBase Database · checked Sep 19, 2026
12	PT Solusi Energy Nusantara	Indirect evidence	IndonesiaHQ checked Sep 19, 2026	501-1,000	563 contacts →
	Indirect evidence “PT Solusi Energy Nusantara (SENA) is affiliation of PGN Group, a reputable company which has a core business in natural gas distribution and transmission.” Source: RevenueBase Database · checked Sep 19, 2026
13	Gardline Limited	Partial evidence	Great Yarmouth, United KingdomHQ checked Sep 19, 2026	501-1,000	545 contacts →
	Partial evidence “Gardline is a best-in-class provider of geophysical, geotechnical and environmental marine surveys.” Source: RevenueBase Database · checked Sep 19, 2026
14	Saexploration	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	201-500	521 contacts →
	Indirect evidence “SAExploration offers a full range of geophysical ground acquisition services from design, prospecting, drilling, recording and analysis of field quality, as well as mobilization…” Source: RevenueBase Database · checked Sep 19, 2026
15	ARGAS	Partial evidence	4204 King Fahd Road, Saudi ArabiaHQ checked Sep 19, 2026	1,001-5,000	512 contacts →
	Partial evidence “ARGAS, since its inception in 1966, was focused on developing Geological and Geophysical field solutions to further explore the earth’s Natural Resources.” Source: RevenueBase Database · checked Sep 19, 2026
16	Geotec	Indirect evidence	Ate, BelgiumHQ checked Sep 19, 2026	1,001-5,000	504 contacts →
	Indirect evidence “Geotec S.A, empresa de perforación perteneciente a Boyles Bros, fue fundado en 1963 posicionándose como una empresa líder en la industria minera peruana.” Source: RevenueBase Database · checked Sep 19, 2026
17	UTEC	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 19, 2026	201-500	490 contacts →
	Indirect evidence “UTEC, Acteon’s Geo-services business line, harnesses data to optimise designs, save time and maximise your project’s economic value by providing a holistic understanding of the…” Source: RevenueBase Database · checked Sep 19, 2026
18	GEO	Indirect evidence	Kgs. Lyngby (copenhagen), DenmarkHQ checked Sep 19, 2026	201-500	468 contacts →
	Indirect evidence “Founded in 1943, Geo is a market leading engineering consultancy company and contractor, specialised within the fields of geotechnical and environmental engineering (geoteknik og…” Source: RevenueBase Database · checked Sep 19, 2026
19	Geo-Technology Associates, Inc. GTA	Indirect evidence	Abingdon, MD, United KingdomHQ checked Sep 19, 2026	501-1,000	460 contacts →
	Indirect evidence “Geo-Technology Associates, Inc.(GTA) proudly celebrates more than 40 years of service, backed by a team of 600+ professionals-including geotechnical engineers, environmental…” Source: RevenueBase Database · checked Sep 19, 2026
20	Ninyo & Moore, A Socotec Company	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	501-1,000	449 contacts →
	Indirect evidence “Ninyo & Moore was acquired by SOCOTEC US.” Source: RevenueBase Database · checked Sep 19, 2026
21	Countrywide Surveying Services	Indirect evidence	Warke Flatt, United KingdomHQ checked Sep 19, 2026	501-1,000	449 contacts →
	Indirect evidence “Buying a house is a big commitment.” Source: RevenueBase Database · checked Sep 19, 2026
22	Groupe ABS	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 19, 2026	501-1,000	441 contacts →
	Indirect evidence “Fondé en 1993 et établi dans onze régions du Québec et en Ontario.” Source: RevenueBase Database · checked Sep 19, 2026
23	Council For Geoscience	Strong evidence	Pretoria, South AfricaHQ checked Sep 19, 2026	201-500	438 contacts →
	Strong evidence “The Council for Geoscience (CGS) is one of the National Science Councils of South Africa and is the legal successor of the Geological Survey of South Africa, which was formed in…” Source: RevenueBase Database · checked Sep 19, 2026
24	Land Surveys	Partial evidence	Belmont, United StatesHQ checked Sep 19, 2026	201-500	408 contacts →
	Partial evidence “Established in 1997 Land Surveys (An ISGroup Company) continues to grow and expand across Australia and overseas due to the demand for more comprehensive survey services in…” Source: RevenueBase Database · checked Sep 19, 2026
25	Progeo Engenharia Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	501-1,000	400 contacts →
	Indirect evidence “Fundada em 1981, a empresa é focada na execução de serviços especiais de geologia, engenharia geotécnica e recuperação de estruturas.” Source: RevenueBase Database · checked Sep 19, 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: geological survey services. 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 geological survey services.
Partial evidence: Its own public description names part of geological survey services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geological survey services. 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 10,724 geological survey services worldwide

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Geological survey services worldwide at a glance

As of Sep 19, 2026

26.1%Verified-email coverage

11.9Average contacts per company

1-10Median size (employees)

0.8%Largest-city concentration · Belo Horizonte

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

5,912

11-50

3,394

51-200

1,023

201-500

214

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among geological survey services, 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 geological survey services are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “geological survey services”. 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 geological survey services), 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 geological survey services, 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, 33,213 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 19, 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.

Geological survey services by location

40 lists · largest first

Every Geological survey 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 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 geological survey services, 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 geological survey services are there worldwide?

RevenueBase identified 10,724 geological survey services 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?

FUGRO, headquartered in Leidschendam, tops this list with the largest team on record.

Which country has the most geological survey services?

The United States leads with 1,816 companies, followed by Brazil (796) and Australia (590). Every geological survey services list by country and city is linked on this page.

Which city has the most geological survey services?

Belo Horizonte leads with 87 headquartered companies, followed by Calgary (87) and Houston (85).

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 33,213 verified decision-maker contacts tracked across these 10,724 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 19, 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.