Company lists · Data refreshed November 2026

Top 25 Reservoir characterization firms worldwide

RevenueBase identified 1,169 company matches for reservoir characterization firms worldwide as of November 2026 and tracks 84,113 professional contacts across them, including 22,003 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for reservoir characterization firms 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 reservoir characterization firms 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
1,169Companies
84,113Contacts tracked
22,003Verified emails
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The 25 largest reservoir characterization firms worldwide

Ranked by team size
Top 25 of 1,169 company matches for reservoir characterization firms 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchHouston, United StatesHQ recorded Nov 6, 202610001+58,281 contacts →

Exact match

“We collaborate and engineer solutions to maximize asset value for our customers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Nov 6, 20261,001-5,0002,991 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchDubai, United Arab EmiratesHQ recorded Nov 6, 20261,001-5,0001,792 contacts →

Exact match

“Every year, drilling teams make decisions worth millions of dollars on incomplete information.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Nov 6, 20261,001-5,0001,601 contacts →

Exact match

“With over 70 offices in more than 50 countries located in major oil-producing provinces, Core Laboratories provides services to the world's major, national, and independent oil…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchHebei, ChinaHQ recorded Nov 6, 202610001+1,238 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact match4204 King Fahd Road, Saudi ArabiaHQ recorded Nov 6, 20261,001-5,000594 contacts →

Exact match

“ARGAS, since its inception in 1966, was focused on developing Geological and Geophysical field solutions to further explore the earth’s Natural Resources.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMissouri City, TX, United StatesHQ recorded Nov 6, 2026201-500508 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchDenver, CO, United StatesHQ recorded Nov 6, 2026201-500471 contacts →

Exact match

“IFS Energy and Resources is the world’s largest independent provider of software and data solutions exclusively serving the upstream oil and gas, mining, and resource industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMumbai, IndiaHQ recorded Nov 6, 202651-200353 contacts →

Exact match

“ASIAN is a reservoir imaging company, offering a suite of geophysical services specializing in land and well seismic services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchToruń, PolandHQ recorded Nov 6, 20261,001-5,000347 contacts →

Exact match

“We deliver innovative geophysical, geological and geotechnical solutions for energy sector as well as renewable energy in Poland and worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBuenos Aires, ArgentinaHQ recorded Nov 6, 20261,001-5,000316 contacts →

Exact match

“For more than 30 years we have been a reliable partner in the oil and gas industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-500285 contacts →

Exact match

“New technologies developed by the research and product development teams of Rock Flow Dynamics are integrated into the company’s flagship product – tNavigator.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchDallas, United StatesHQ recorded Nov 6, 2026201-500284 contacts →

Exact match

“Reserves assessments and appraisals • Prospective resources assessments • Unconventional resources assessments • Contingent resources assessments • Reservoir simulation •…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchCalgary, TX, CanadaHQ recorded Nov 6, 2026201-500275 contacts →

Exact match

“Innovators in Simulation Technology CMG is a global software and consulting company that combines science and technology with deep industry expertise to solve complex subsurface…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBucharest, RomaniaHQ recorded Nov 6, 20261,001-5,000272 contacts →

Exact match

“Prospectiuni SA is a major provider of geophysical expertise, with over 60 years of experience in the Romanian Oil and Gas industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMoscow City, RussiaHQ recorded Nov 6, 20261,001-5,000222 contacts →

Exact match

“Zarubezhneft” has a considerable scientific and technological potential that enables it to provide sophisticated full-cycle operations – from designing advanced computer-based…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBayonne, FranceHQ recorded Nov 6, 2026201-500214 contacts →

Exact match

“We believe that there is a human and technical value chain through the entire energy workflow.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-500203 contacts →

Exact match

“ROGII is the leading technology provider for upstream Oil & Gas providing solutions for geoscience, drilling, and completions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMuscat, OmanHQ recorded Nov 6, 2026501-1,000191 contacts →

Exact match

“As an E&P services provider, the TARGET Group works to address our customers' challenges in the energy industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLondon, TX, United KingdomHQ recorded Nov 6, 202651-200171 contacts →

Exact match

“Ikon Science is a global provider of geopredictive and knowledge management software and service solutions optimizing subsurface discovery, production, and storage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchPort Harcourt, NigeriaHQ recorded Nov 6, 202651-200139 contacts →

Exact match

“CypherCrescent is a leading petroleum engineering research, software development and asset management consultancy company, with a global reach.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchVillahermosa, TX, MexicoHQ recorded Nov 6, 2026201-500136 contacts →

Exact match

“Petricore is a UK-registered oilfield service company specializing in Wellsite Services, Laboratory Services, and Digital Rock Analysis for international oil and gas companies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchPlano, United StatesHQ recorded Nov 6, 202651-200133 contacts →

Exact match

“PetroTel is recognized worldwide as an industry leader in enhanced oil recovery, reservoir characterization and simulation, coalbed methane, production, and exploration…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202651-200117 contacts →

Exact match

“GeoSoftware is the global trusted partner for subsurface geoscience software and consulting services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchParis, FranceHQ recorded Nov 6, 202651-200114 contacts →

Exact match

“KAPPA is a Petroleum E&P software company specialising in dynamic data analysis.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 1,169 reservoir characterization firms worldwide

See the full list, filter by size, metro and specialty, and access 22,003 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Reservoir characterization firms worldwide at a glance

As of Nov 6, 2026
26.2%Verified-email coverage
72.0Average contacts per company
1-10Median size (employees)
11.2%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
658
11-50
331
51-200
127
201-500
24
501-1,000
4
1,001-5,000
12
5,001-10,000
1
10001+
7

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 reservoir characterization firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “reservoir characterization firms” 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 22,003 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.

Reservoir characterization firms by location

7 lists · largest first

Every Reservoir characterization firms 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 “reservoir characterization firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many reservoir characterization firms are there worldwide?

RevenueBase identified 1,169 company matches for reservoir characterization firms 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?

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

Which country has the most reservoir characterization firms?

The United States leads with 341 companies, followed by the United Kingdom (104) and Canada (87). Every reservoir characterization firms list by country and city is linked on this page.

Which city has the most reservoir characterization firms?

Houston leads with 131 company records, followed by Calgary (63) and London (25).

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 22,003 professional contacts with verified work emails tracked across these 1,169 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.