Company lists · Data refreshed September 2026
Top 25 Geological survey organizations worldwide
RevenueBase identified 4,983 geological survey organizations worldwide as of September 2026 and tracks 80,776 professional contacts across them, including 20,128 with verified work emails. The United States is the largest market and Belo Horizonte the largest hub.
This list covers geological survey organizations 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 20, 2026. Country and city lists for geological survey organizations 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.
The 25 largest geological survey organizations worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,259 contacts → | ||||
Indirect evidence “SRK Consulting is an independent, international group providing specialised consultancy services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,377 contacts → | ||||
Strong evidence “BRGM, the French geological survey, is France’s reference public institution for Earth Science applications in the management of surface and subsurface resources and risks.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,097 contacts → | ||||
Indirect evidence “BGP is one of the world's competitive geophysical companies, delivering a wide range of geophysical products and services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 801 contacts → | ||||
Indirect evidence “Costituito nel l'Istituto Nazionale di Geofisica e Vulcanologia (INGV) raccoglie e valorizza le competenze e le risorse di cinque istituti già operanti nell'ambito delle…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 761 contacts → | ||||
Indirect evidence “From natural resources to earth and infrastructure monitoring, energy transition, and defense, Sercel is a pioneer in measuring and understanding Earth’s subsurface to provide…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 598 contacts → | ||||
Indirect evidence “Maanmittauslaitoksessa tuotetaan tietoa, palvelua ja tutkimusta Maasta.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 545 contacts → | ||||
Partial evidence “Gardline is a best-in-class provider of geophysical, geotechnical and environmental marine surveys.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 441 contacts → | ||||
Indirect evidence “Fondé en 1993 et établi dans onze régions du Québec et en Ontario.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 402 contacts → | ||||
Indirect evidence “Sveriges geologiska undersökning (SGU) är central myndighet för geologi och mineralfrågor.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 396 contacts → | ||||
Indirect evidence “GGS provides an integrated suite of Geoscience solutions to the global oil and gas industry including high-resolution RG-3D Reservoir Grade® seismic data acquisition, Multi Client…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 381 contacts → | ||||
Partial evidence “Headquartered in the UAE, Horizon Geosciences provide marine survey and geotechnical services to an array of clients around the world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 369 contacts → | ||||
Strong evidence “Geological Survey of Denmark and Greenland (GEUS) GEUS is an independent research institution under the Danish Ministry of Climate, Energy and Utilities and a part of Geocenter…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 359 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 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 335 contacts → | ||||
Partial evidence “What began as a small company in the oilfields of Southern Oklahoma, today Topographic Land Surveyors stands as the industry leader in the fields of Surveying, Mapping…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 321 contacts → | ||||
Indirect evidence “ConeTec is a full-service geotechnical, geoenvironmental, and mining site investigation contractor.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 317 contacts → | ||||
Indirect evidence “Mineral Exploration and Consultancy Limited (MECL) is a premier public sector enterprise under the Ministry of Mines, Government of India, specializing in mineral exploration and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 310 contacts → | ||||
Partial evidence “We deliver innovative geophysical, geological and geotechnical solutions for energy sector as well as renewable energy in Poland and worldwide.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 300 contacts → | ||||
Indirect evidence “ASIAN is a reservoir imaging company, offering a suite of geophysical services specializing in land and well seismic services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 298 contacts → | ||||
Partial evidence “Encompass Services is a professional Survey, Land/ROW, and GIS firm serving the energy, land management, transportation, and infrastructure industries.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
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 organizations. 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 organizations.
- Partial evidence
- Its own public description names part of geological survey organizations, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name geological survey organizations. 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 4,983 geological survey organizations worldwide
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Geological survey organizations worldwide at a glance
As of Sep 20, 2026Companies by employee count
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 organizations, 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 organizations are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “geological survey organizations”. 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 organizations), 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 organizations, 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, 20,128 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 20, 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 organizations by location
20 lists · largest firstEvery Geological survey organizations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Geological survey organizations based in the United States530
- Geological survey organizations based in Brazil341
- Geological survey organizations based in Australia270
- Geological survey organizations based in Canada249
- Geological survey organizations based in Italy223
- Geological survey organizations based in the United Kingdom222
- Geological survey organizations based in India192
- Geological survey organizations based in Indonesia142
- Geological survey organizations based in Chile134
- Geological survey organizations based in France130
- Geological survey organizations based in Germany130
- Geological survey organizations based in Spain108
- Geological survey organizations based in South Africa96
- Geological survey organizations based in Poland78
- Geological survey organizations based in Argentina57
- Geological survey organizations based in Switzerland42
- Geological survey organizations based in Saudi Arabia32
- Geological survey organizations based in the Netherlands30
- Geological survey organizations based in Belgium25
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 organizations, 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 organizations are there worldwide?
RevenueBase identified 4,983 geological survey organizations 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 organizations?
The United States leads with 530 companies, followed by Brazil (341) and Australia (270). Every geological survey organizations list by country and city is linked on this page.
Which city has the most geological survey organizations?
Belo Horizonte leads with 46 headquartered companies, followed by Calgary (46) and Perth (45).
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 20,128 verified decision-maker contacts tracked across these 4,983 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 20, 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.