Company lists · Data refreshed October 2026

Top 25 Geophysical services worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Oct 26, 2026 16,918 companies tracked

RevenueBase identified 16,918 company matches for geophysical services worldwide as of October 2026 and tracks 321,839 professional contacts across them, including 76,237 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for geophysical 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 October 26, 2026. Country and city lists for geophysical 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 Oct 26, 2026 How this list was built

16,918Companies

321,839Contacts tracked

76,237Verified emails

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The 25 largest geophysical services worldwide

Ranked by team size

Top 25 of 16,918 company matches for geophysical services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 26, 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	Halliburton	Exact match	Houston, TX, United StatesHQ recorded Oct 26, 2026	10001+	56,783 contacts →
	Exact match “We collaborate and engineer solutions to maximize asset value for our customers.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
2	FUGRO	Exact match	Nootdorp, NetherlandsHQ recorded Oct 26, 2026	10001+	8,464 contacts →
	Exact match “We are the world’s leading Geo-data specialist, collecting and analysing comprehensive information about the Earth and the structures built upon it.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
3	RMSI	Exact match	Noida, IndiaHQ recorded Oct 26, 2026	1,001-5,000	5,658 contacts →
	Exact match “RMSI is a global leader in geospatial and engineering solutions.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
4	SEG	Exact match	Houston, TX, United StatesHQ recorded Oct 26, 2026	n/a	3,189 contacts →
	Exact match “With a rich history of excellence, SEG fosters a global community dedicated to advancing geophysical science through education, professional development, and collaboration.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
5	CGG	Exact match	Massy, FranceHQ recorded Oct 26, 2026	1,001-5,000	2,954 contacts →
	Exact match “Founded in 1931, Viridien (formerly CGG) is an advanced technology, digital and Earth data company that pushes the boundaries of science for a more prosperous and sustainable…” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
6	KEY Energy Services	Exact match	Houston, TX, United StatesHQ recorded Oct 26, 2026	1,001-5,000	2,923 contacts →
	Exact match “Headquartered in Houston, Texas, Key Energy Services provides a wide array of leading edge energy production solutions and services.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
7	Oilserv	Exact match	Dubai, United Arab EmiratesHQ recorded Oct 26, 2026	1,001-5,000	2,362 contacts →
	Exact match “OiLSERV is a provider of an expanding range of oilfield services, including well logging, well testing, production enhancement, drilling services, surface production management…” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
8	Ramtech Software Solutions	Exact match	Noida, IndiaHQ recorded Oct 26, 2026	1,001-5,000	2,290 contacts →
	Exact match “Founded in 1992, RAMTeCH Software Solutions, Inc.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
9	Pt. Surveyor Indonesia	Exact match	IndonesiaHQ recorded Oct 26, 2026	1,001-5,000	1,721 contacts →
	Exact match “Surveyor Indonesia was incepted on 1 August 1991.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
10	Geolog International	Exact match	Dubai, United Arab EmiratesHQ recorded Oct 26, 2026	1,001-5,000	1,697 contacts →
	Exact match “Every year, drilling teams make decisions worth millions of dollars on incomplete information.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
11	Deepocean	Exact match	Oslo, NorwayHQ recorded Oct 26, 2026	1,001-5,000	1,536 contacts →
	Exact match “DeepOcean is a technology-driven, independent solution provider in the ocean space.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
12	Major Drilling	Exact match	Moncton, NB, CanadaHQ recorded Oct 26, 2026	1,001-5,000	1,518 contacts →
	Exact match “Major Drilling Group International Inc.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
13	SAM	Exact match	Austin, TX, United StatesHQ recorded Oct 26, 2026	1,001-5,000	1,393 contacts →
	Exact match “SAM has built a reputation as a trusted, knowledgeable, and innovative partner.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
14	Cudd Energy Services	Exact match	The Woodlands, TX, United StatesHQ recorded Oct 26, 2026	1,001-5,000	1,329 contacts →
	Exact match “Cudd offers a broad range of technical and specialized oilfield services to companies engaged in the exploration and production of oil and natural gas worldwide.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
15	Soletanche Bachy	Exact match	Rueil-malmaison, FranceHQ recorded Oct 26, 2026	5,001-10,000	1,265 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 · Oct 26, 2026 · View company records in RevenueBase
16	Aries Marine And Engineering Services	Exact match	United Arab EmiratesHQ recorded Oct 26, 2026	1,001-5,000	1,257 contacts →
	Exact match “Aries is the largest Engineering, Inspection & Maintenance firm in the Middle East.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
17	Scientific Drilling	Exact match	The Woodlands, TX, United StatesHQ recorded Oct 26, 2026	1,001-5,000	1,213 contacts →
	Exact match “THE ULTIMATE PARTNER IN WELLBORE PLACEMENT Scientific Drilling International is an independent service provider offering a complete high accuracy wellbore placement and drilling…” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
18	BGP	Exact match	Hebei, ChinaHQ recorded Oct 26, 2026	10001+	1,189 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
19	Shearwater Geoservices	Exact match	Laksevåg, United StatesHQ recorded Oct 26, 2026	1,001-5,000	1,060 contacts →
	Exact match “Shearwater is a global marine geoscience and technology business.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
20	Capital Limited	Exact match	Mauritius, AustriaHQ recorded Oct 26, 2026	1,001-5,000	1,020 contacts →
	Exact match “Capital Limited is a leading service provider for the exploration and mining industry.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
21	Carso Perforación	Exact match	United StatesHQ recorded Oct 26, 2026	1,001-5,000	1,017 contacts →
	Exact match “Empresa líder en el Sector Petrolero, con presencia a Nivel Nacional, principales clientes PEMEX Y CFE, con servicios como perforación de pozos terrestres, Marinos, Geotérmicos…” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
22	Geokinetics INC	Exact match	Houston, TX, United StatesHQ recorded Oct 26, 2026	501-1,000	974 contacts →
	Exact match “Headquartered in Houston, Texas, Geokinetics is one of the world’s largest independent land and seafloor geophysical companies.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
23	GZA Geoenvironmental, INC	Exact match	Norwood, MA, United StatesHQ recorded Oct 26, 2026	501-1,000	903 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 · Oct 26, 2026 · View company records in RevenueBase
24	NDT Global	Exact match	Québec, QC, CanadaHQ recorded Oct 26, 2026	1,001-5,000	841 contacts →
	Exact match “NDT Global is the leading provider of inline diagnostic solutions, advanced data insights, subsea inspection, and integrity management services that safeguard energy-sector…” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
25	Sigma S.A. Chile	Exact match	Santiago, ChileHQ recorded Oct 26, 2026	201-500	826 contacts →
	Exact match “Somos una empresa de excelencia que desarrolla servicios integrales de Estudios Eléctricos, ingeniería, montaje industrial, geomensura, apoyo profesional, inspección técnica y…” Recorded in the RevenueBase company graph · Oct 26, 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 “geophysical 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 16,918 geophysical services worldwide

See the full list, filter by size, metro and specialty, and access 76,237 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geophysical services worldwide at a glance

As of Oct 26, 2026

23.7%Verified-email coverage

19.0Average contacts per company

1-10Median size (employees)

1.7%Largest-city concentration · Houston

Oct 26, 2026Page data refreshed

Companies by employee count

1-10

8,962

11-50

5,428

51-200

1,786

201-500

423

501-1,000

127

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 geophysical services are linked below.
What qualifies: Company records worldwide whose business descriptions match “geophysical 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 76,237 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 October 26, 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.

Geophysical services by location

71 lists · largest first

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

How many geophysical services are there worldwide?

RevenueBase identified 16,918 company matches for geophysical services worldwide as of October 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?

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

Which country has the most geophysical services?

The United States leads with 2,681 companies, followed by Brazil (1,329) and the United Kingdom (865). Every geophysical services list by country and city is linked on this page.

Which city has the most geophysical services?

Houston leads with 293 company records, followed by Calgary (201) and Belo Horizonte (137).

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 76,237 professional contacts with verified work emails tracked across these 16,918 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 October 26, 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.