Company lists · Data refreshed November 2026
Top 25 Reservoir services worldwide
RevenueBase identified 2,103 company matches for reservoir services worldwide as of November 2026 and tracks 111,412 professional contacts across them, including 26,350 with verified work emails. The United States is the largest market and Houston the largest hub.
This list covers company matches for reservoir 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 reservoir 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.
The 25 largest reservoir services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 | |||||
| 2 | 2,991 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 | |||||
| 3 | 1,792 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 | |||||
| 4 | 1,601 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 | |||||
| 5 | 1,522 contacts → | ||||
Exact match “Anton Oilfield Services Group (hereinafter as “Anton”) is the world's leading integrated oilfield technology service company that provides clients with a full range of products…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 1,315 contacts → | ||||
Exact match “Abraj Energy Services ("Abraj"), was founded in May 2006 and has taken major strides.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 912 contacts → | ||||
Exact match “Innovex International, Inc (NYSE: INVX) is a Houston-based company established in 2024 following the merger of Dril-Quip, Inc and Innovex Downhole Solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 866 contacts → | ||||
Exact match “Excellence Logging is an established energy services provider focused on optimizing well performance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 837 contacts → | ||||
Exact match “AGR – an Aqualis company – is a multidisciplinary consultancy, specialising in drilling & wells, subsurface, marine and subsea solutions, resourcing, technical safety and software…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 773 contacts → | ||||
Exact match “With a culture built on high performance and flawless execution, Nine Energy Service is a unique kind of oilfield services company, offering industry-shaping completion solutions…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 750 contacts → | ||||
Exact match “Tucker Energy Services is a service oriented and customer focused organization providing high quality products and services to our clients in the energy industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 717 contacts → | ||||
Exact match “KBR Consulting is one of the world's foremost engineering consultancies specializing in the hydrocarbon and energy industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 659 contacts → | ||||
Exact match “At Interwell our mission is clear; we are committed to solving the toughest well challenges with unmatched expertise and dedication.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 651 contacts → | ||||
Exact match “A ACV Tecline é uma empresa especializada na prestação de serviços voltados, principalmente, para empresas do setor de energia, com destaque para as áreas de petróleo e gás.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 526 contacts → | ||||
Exact match “Expertise was founded in 1984 in Genoa offering technical assistance services, then developing into an Engineering and Technical Services Company mainly operating in the energy…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 508 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 | |||||
| 17 | 471 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 | |||||
| 18 | 450 contacts → | ||||
Exact match “EnerVest is a top-tier, low-cost oil and natural gas operating company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 408 contacts → | ||||
Exact match “NEO2 is an Engineering Consultancy and Resource Provider active in the Oil & Gas, Water Treatment & Desalination, and Power Generation industries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 384 contacts → | ||||
Exact match “Express Energy Services, a leading oilfield services company, is active in every major hydrocarbon basin in the United States and is a premier provider of products and services…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 371 contacts → | ||||
Exact match “Es una compañía de servicios creada en el año 2009 para trabajar en el upstream de la industria petrolera.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 353 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 | |||||
| 23 | 337 contacts → | ||||
Exact match “Ingeniería SIMA se desempeña en la Industria del Petróleo y Gas, desde 1979 se dedica a brindar a nuestros clientes soluciones que posibiliten la producción de hidrocarburos y la…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 316 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 | |||||
| 25 | 295 contacts → | ||||
Exact match “Greene’s Energy Group offers a range of support services and products to the oil and gas industry.” 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 “reservoir 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 2,103 reservoir services worldwide
See the full list, filter by size, metro and specialty, and access 26,350 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Reservoir services worldwide at a glance
As of Nov 6, 2026Companies by employee count
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 services are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “reservoir 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 26,350 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 services by location
18 lists · largest firstEvery Reservoir services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Reservoir services based in the United States571
- Reservoir services based in the United Kingdom155
- Reservoir services based in Canada154
- Reservoir services based in Nigeria89
- Reservoir services based in Brazil60
- Reservoir services based in the United Arab Emirates52
- Reservoir services based in Australia50
- Reservoir services based in Indonesia40
- Reservoir services based in India39
- Reservoir services based in Mexico38
- Reservoir services based in Argentina36
- Reservoir services based in Norway29
- Reservoir services based in Malaysia26
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 services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many reservoir services are there worldwide?
RevenueBase identified 2,103 company matches for reservoir 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?
Halliburton tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most reservoir services?
The United States leads with 571 companies, followed by the United Kingdom (155) and Canada (154). Every reservoir services list by country and city is linked on this page.
Which city has the most reservoir services?
Houston leads with 166 company records, followed by Calgary (113) and London (43).
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 26,350 professional contacts with verified work emails tracked across these 2,103 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.
Ready to reach these companies? Verified emails and direct dials for all 2,103 reservoir services worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 reservoir services worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 2,103 matching company records for reservoir services worldwide, with 111,412 tracked contacts and 26,350 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 reservoir services worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Halliburtonhalliburton.comHQ: Houston, United StatesReported employees: 10001+ | Houston, United States | 10001+ | Exact match | 58,281 contacts → |
“We collaborate and engineer solutions to maximize asset value for our customers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  KEY Energy Serviceskeyenergy.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 2,991 contacts → |
“Headquartered in Houston, Texas, Key Energy Services provides a wide array of leading edge energy production solutions and services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Geolog Internationalgeolog.comHQ: Dubai, United Arab EmiratesReported employees: 1,001-5,000 | Dubai, United Arab Emirates | 1,001-5,000 | Exact match | 1,792 contacts → |
“Every year, drilling teams make decisions worth millions of dollars on incomplete information.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Core Laboratoriescorelab.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,601 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  ANTONantonoil.comHQ: Dubai, United Arab EmiratesReported employees: 5,001-10,000 | Dubai, United Arab Emirates | 5,001-10,000 | Exact match | 1,522 contacts → |
“Anton Oilfield Services Group (hereinafter as “Anton”) is the world's leading integrated oilfield technology service company that provides clients with a full range of products…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Abraj Energy Servicesabrajenergy.comHQ: Muscat, OmanReported employees: 1,001-5,000 | Muscat, Oman | 1,001-5,000 | Exact match | 1,315 contacts → |
“Abraj Energy Services ("Abraj"), was founded in May 2006 and has taken major strides.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Innovexinnovex-inc.comHQ: Humble, TX, United StatesReported employees: 1,001-5,000 | Humble, TX, United States | 1,001-5,000 | Exact match | 912 contacts → |
“Innovex International, Inc (NYSE: INVX) is a Houston-based company established in 2024 following the merger of Dril-Quip, Inc and Innovex Downhole Solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Excellence Loggingexlog.comHQ: London W2 2es, United KingdomReported employees: 1,001-5,000 | London W2 2es, United Kingdom | 1,001-5,000 | Exact match | 866 contacts → |
“Excellence Logging is an established energy services provider focused on optimizing well performance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  AGRagr.comHQ: Oslo, NorwayReported employees: 501-1,000 | Oslo, Norway | 501-1,000 | Exact match | 837 contacts → |
“AGR – an Aqualis company – is a multidisciplinary consultancy, specialising in drilling & wells, subsurface, marine and subsea solutions, resourcing, technical safety and software…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Nine Energy Servicenineenergyservice.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 773 contacts → |
“With a culture built on high performance and flawless execution, Nine Energy Service is a unique kind of oilfield services company, offering industry-shaping completion solutions…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Tucker Energy Servicestuckerenergy.comHQ: Port Of Spain, Trinidad and TobagoReported employees: 1,001-5,000 | Port Of Spain, Trinidad and Tobago | 1,001-5,000 | Exact match | 750 contacts → |
“Tucker Energy Services is a service oriented and customer focused organization providing high quality products and services to our clients in the energy industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  KBR Granhernekbr.comHQ: Leatherhead, United KingdomReported employees: 501-1,000 | Leatherhead, United Kingdom | 501-1,000 | Exact match | 717 contacts → |
“KBR Consulting is one of the world's foremost engineering consultancies specializing in the hydrocarbon and energy industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Interwellinterwell.comHQ: Røyneberg, NorwayReported employees: 501-1,000 | Røyneberg, Norway | 501-1,000 | Exact match | 659 contacts → |
“At Interwell our mission is clear; we are committed to solving the toughest well challenges with unmatched expertise and dedication.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  ACV Tecline Engenharia Ltdaacvtecline.com.brHQ: Curitiba, BrazilReported employees: 501-1,000 | Curitiba, Brazil | 501-1,000 | Exact match | 651 contacts → |
“A ACV Tecline é uma empresa especializada na prestação de serviços voltados, principalmente, para empresas do setor de energia, com destaque para as áreas de petróleo e gás.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Expertiseexpertise.itHQ: Vado Ligure, ItalyReported employees: 201-500 | Vado Ligure, Italy | 201-500 | Exact match | 526 contacts → |
“Expertise was founded in 1984 in Genoa offering technical assistance services, then developing into an Engineering and Technical Services Company mainly operating in the energy…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Global Geophysical Servicesglobalgeophysical.comHQ: Missouri City, TX, United StatesReported employees: 201-500 | Missouri City, TX, United States | 201-500 | Exact match | 508 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  IFS Energy & Resourcesifs.comHQ: Denver, CO, United StatesReported employees: 201-500 | Denver, CO, United States | 201-500 | Exact match | 471 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Enervest, LTDenervest.netHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 450 contacts → |
“EnerVest is a top-tier, low-cost oil and natural gas operating company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Neo2neo2.euHQ: Levallois-perret, FranceReported employees: 501-1,000 | Levallois-perret, France | 501-1,000 | Exact match | 408 contacts → |
“NEO2 is an Engineering Consultancy and Resource Provider active in the Oil & Gas, Water Treatment & Desalination, and Power Generation industries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Express Energy Serviceseeslp.comHQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 384 contacts → |
“Express Energy Services, a leading oilfield services company, is active in every major hydrocarbon basin in the United States and is a premier provider of products and services…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Prodengprodeng.com.arHQ: Allen, ArgentinaReported employees: 201-500 | Allen, Argentina | 201-500 | Exact match | 371 contacts → |
“Es una compañía de servicios creada en el año 2009 para trabajar en el upstream de la industria petrolera.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Asian Energy Services Limitedasianenergy.comHQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 353 contacts → |
“ASIAN is a reservoir imaging company, offering a suite of geophysical services specializing in land and well seismic services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Ingenieria Sima SAsima.com.arHQ: Neuquen, ArgentinaReported employees: 201-500 | Neuquen, Argentina | 201-500 | Exact match | 337 contacts → |
“Ingeniería SIMA se desempeña en la Industria del Petróleo y Gas, desde 1979 se dedica a brindar a nuestros clientes soluciones que posibiliten la producción de hidrocarburos y la…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Clear Petroleumclear.com.arHQ: Buenos Aires, ArgentinaReported employees: 1,001-5,000 | Buenos Aires, Argentina | 1,001-5,000 | Exact match | 316 contacts → |
“For more than 30 years we have been a reliable partner in the oil and gas industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Greene's Energy Groupgreenesenergy.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 295 contacts → |
“Greene’s Energy Group offers a range of support services and products to the oil and gas industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,103 company matches
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Reservoir services: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
2,092 records in the displayed employee bands.
11 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 2,103 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Reservoir services by location
18 lists · largest firstEvery Reservoir services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Reservoir services based in the United States571
- Reservoir services based in the United Kingdom155
- Reservoir services based in Canada154
- Reservoir services based in Nigeria89
- Reservoir services based in Brazil60
- Reservoir services based in the United Arab Emirates52
- Reservoir services based in Australia50
- Reservoir services based in Indonesia40
- Reservoir services based in India39
- Reservoir services based in Mexico38
- Reservoir services based in Argentina36
- Reservoir services based in Norway29
- Reservoir services based in Malaysia26
Cities
Questions about this company list
What does Exact match mean for reservoir services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many reservoir services did RevenueBase find worldwide?
The saved snapshot records 2,103 matching company records, 111,412 tracked contacts and 26,350 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 reservoir services worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/reservoir-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 reservoir services worldwide
RevenueBase records 2,103 matching company records for reservoir services worldwide, with 111,412 tracked contacts and 26,350 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 reservoir services worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Halliburtonhalliburton.com HQ: Houston, United StatesReported employees: 10001+ | Houston, United States | 10001+ | Exact match | 58,281 contacts → |
“We collaborate and engineer solutions to maximize asset value for our customers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | KEY Energy Serviceskeyenergy.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 2,991 contacts → |
“Headquartered in Houston, Texas, Key Energy Services provides a wide array of leading edge energy production solutions and services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Geolog Internationalgeolog.com HQ: Dubai, United Arab EmiratesReported employees: 1,001-5,000 | Dubai, United Arab Emirates | 1,001-5,000 | Exact match | 1,792 contacts → |
“Every year, drilling teams make decisions worth millions of dollars on incomplete information.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Core Laboratoriescorelab.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,601 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | ANTONantonoil.com HQ: Dubai, United Arab EmiratesReported employees: 5,001-10,000 | Dubai, United Arab Emirates | 5,001-10,000 | Exact match | 1,522 contacts → |
“Anton Oilfield Services Group (hereinafter as “Anton”) is the world's leading integrated oilfield technology service company that provides clients with a full range of products…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Abraj Energy Servicesabrajenergy.com HQ: Muscat, OmanReported employees: 1,001-5,000 | Muscat, Oman | 1,001-5,000 | Exact match | 1,315 contacts → |
“Abraj Energy Services ("Abraj"), was founded in May 2006 and has taken major strides.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Innovexinnovex-inc.com HQ: Humble, TX, United StatesReported employees: 1,001-5,000 | Humble, TX, United States | 1,001-5,000 | Exact match | 912 contacts → |
“Innovex International, Inc (NYSE: INVX) is a Houston-based company established in 2024 following the merger of Dril-Quip, Inc and Innovex Downhole Solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Excellence Loggingexlog.com HQ: London W2 2es, United KingdomReported employees: 1,001-5,000 | London W2 2es, United Kingdom | 1,001-5,000 | Exact match | 866 contacts → |
“Excellence Logging is an established energy services provider focused on optimizing well performance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | AGRagr.com HQ: Oslo, NorwayReported employees: 501-1,000 | Oslo, Norway | 501-1,000 | Exact match | 837 contacts → |
“AGR – an Aqualis company – is a multidisciplinary consultancy, specialising in drilling & wells, subsurface, marine and subsea solutions, resourcing, technical safety and software…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Nine Energy Servicenineenergyservice.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 773 contacts → |
“With a culture built on high performance and flawless execution, Nine Energy Service is a unique kind of oilfield services company, offering industry-shaping completion solutions…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Tucker Energy Servicestuckerenergy.com HQ: Port Of Spain, Trinidad and TobagoReported employees: 1,001-5,000 | Port Of Spain, Trinidad and Tobago | 1,001-5,000 | Exact match | 750 contacts → |
“Tucker Energy Services is a service oriented and customer focused organization providing high quality products and services to our clients in the energy industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | KBR Granhernekbr.com HQ: Leatherhead, United KingdomReported employees: 501-1,000 | Leatherhead, United Kingdom | 501-1,000 | Exact match | 717 contacts → |
“KBR Consulting is one of the world's foremost engineering consultancies specializing in the hydrocarbon and energy industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Interwellinterwell.com HQ: Røyneberg, NorwayReported employees: 501-1,000 | Røyneberg, Norway | 501-1,000 | Exact match | 659 contacts → |
“At Interwell our mission is clear; we are committed to solving the toughest well challenges with unmatched expertise and dedication.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | ACV Tecline Engenharia Ltdaacvtecline.com.br HQ: Curitiba, BrazilReported employees: 501-1,000 | Curitiba, Brazil | 501-1,000 | Exact match | 651 contacts → |
“A ACV Tecline é uma empresa especializada na prestação de serviços voltados, principalmente, para empresas do setor de energia, com destaque para as áreas de petróleo e gás.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Expertiseexpertise.it HQ: Vado Ligure, ItalyReported employees: 201-500 | Vado Ligure, Italy | 201-500 | Exact match | 526 contacts → |
“Expertise was founded in 1984 in Genoa offering technical assistance services, then developing into an Engineering and Technical Services Company mainly operating in the energy…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Global Geophysical Servicesglobalgeophysical.com HQ: Missouri City, TX, United StatesReported employees: 201-500 | Missouri City, TX, United States | 201-500 | Exact match | 508 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | IFS Energy & Resourcesifs.com HQ: Denver, CO, United StatesReported employees: 201-500 | Denver, CO, United States | 201-500 | Exact match | 471 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Enervest, LTDenervest.net HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 450 contacts → |
“EnerVest is a top-tier, low-cost oil and natural gas operating company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Neo2neo2.eu HQ: Levallois-perret, FranceReported employees: 501-1,000 | Levallois-perret, France | 501-1,000 | Exact match | 408 contacts → |
“NEO2 is an Engineering Consultancy and Resource Provider active in the Oil & Gas, Water Treatment & Desalination, and Power Generation industries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Express Energy Serviceseeslp.com HQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 384 contacts → |
“Express Energy Services, a leading oilfield services company, is active in every major hydrocarbon basin in the United States and is a premier provider of products and services…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Prodengprodeng.com.ar HQ: Allen, ArgentinaReported employees: 201-500 | Allen, Argentina | 201-500 | Exact match | 371 contacts → |
“Es una compañía de servicios creada en el año 2009 para trabajar en el upstream de la industria petrolera.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Asian Energy Services Limitedasianenergy.com HQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 353 contacts → |
“ASIAN is a reservoir imaging company, offering a suite of geophysical services specializing in land and well seismic services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Ingenieria Sima SAsima.com.ar HQ: Neuquen, ArgentinaReported employees: 201-500 | Neuquen, Argentina | 201-500 | Exact match | 337 contacts → |
“Ingeniería SIMA se desempeña en la Industria del Petróleo y Gas, desde 1979 se dedica a brindar a nuestros clientes soluciones que posibiliten la producción de hidrocarburos y la…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Clear Petroleumclear.com.ar HQ: Buenos Aires, ArgentinaReported employees: 1,001-5,000 | Buenos Aires, Argentina | 1,001-5,000 | Exact match | 316 contacts → |
“For more than 30 years we have been a reliable partner in the oil and gas industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Greene's Energy Groupgreenesenergy.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 295 contacts → |
“Greene’s Energy Group offers a range of support services and products to the oil and gas industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,103 company matches
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Reservoir services: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
2,092 records in the displayed employee bands.
11 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 2,103 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Reservoir services by location
18 lists · largest firstEvery Reservoir services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Reservoir services based in the United States571
- Reservoir services based in the United Kingdom155
- Reservoir services based in Canada154
- Reservoir services based in Nigeria89
- Reservoir services based in Brazil60
- Reservoir services based in the United Arab Emirates52
- Reservoir services based in Australia50
- Reservoir services based in Indonesia40
- Reservoir services based in India39
- Reservoir services based in Mexico38
- Reservoir services based in Argentina36
- Reservoir services based in Norway29
- Reservoir services based in Malaysia26
Cities
Questions about this company list
What does Exact match mean for reservoir services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many reservoir services did RevenueBase find worldwide?
The saved snapshot records 2,103 matching company records, 111,412 tracked contacts and 26,350 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 reservoir services worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/reservoir-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗