Company lists · Data refreshed October 2026
Top 25 Offshore seismic contractors worldwide
RevenueBase identified 2,929 company matches for offshore seismic contractors worldwide as of October 2026 and tracks 200,976 professional contacts across them, including 37,930 with verified work emails. The United States is the largest market and Houston the largest hub.
This list covers company matches for offshore seismic contractors 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 19, 2026. Country and city lists for offshore seismic contractors 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 offshore seismic contractors worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 56,783 contacts → | ||||
Exact match “We collaborate and engineer solutions to maximize asset value for our customers.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 2 | 6,266 contacts → | ||||
Exact match “Nabors Industries is a leading provider of advanced technology for the energy industry.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 3 | 5,939 contacts → | ||||
Exact match “Noble is a leading offshore drilling contractor for the oil and gas industry.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 4 | 4,167 contacts → | ||||
Exact match “We are the one and only national company that possesses combined competencies in oil & gas services: seismic, drilling and oilfield.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 5 | 3,269 contacts → | ||||
Exact match “With a multi-national workforce of over 5,700 personnel, DOF is an international group of companies which owns and operates a fleet of modern offshore/subsea vessels, with an…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 6 | 3,263 contacts → | ||||
Exact match “We Are Valaris With decades of expertise and strategic commitment built on efficiency, capability and ingenuity, our sights are continually set toward a future built with purpose…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 7 | 2,792 contacts → | ||||
Exact match “Heerema Marine Contractors is a world-leading marine contractor in the international offshore energy industry.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 8 | 2,765 contacts → | ||||
Exact match “Allseas is a world-leading contractor in the offshore energy market.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 9 | 2,406 contacts → | ||||
Exact match “Zamil Offshore Services Company has been offering diversified offshore and marine support services to the oil and gas industry since 1977.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 10 | 2,328 contacts → | ||||
Exact match “A OCYAN atua há décadas na prestação de serviços para o setor de óleo e gás upstream, estruturando suas operações em três frentes de atuação.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 11 | 2,271 contacts → | ||||
Exact match “Rov company.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 12 | 1,972 contacts → | ||||
Exact match “O Grupo CBO é uma das maiores empresas de apoio marítimo do Brasil.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 13 | 1,771 contacts → | ||||
Exact match “Helix Energy Solutions, headquartered in Houston, Texas, is an international offshore energy services company that provides specialty services to the offshore energy industry…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 14 | 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 19, 2026 · View company records in RevenueBase | |||||
| 15 | 1,653 contacts → | ||||
Exact match “With an extensive fleet of over 200 vessels worldwide, Rawabi Vallianz Offshore Services leverages Rawabi’s expertise to ensure exceptional quality and on-time delivery.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 16 | 1,536 contacts → | ||||
Exact match “DeepOcean is a technology-driven, independent solution provider in the ocean space.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 17 | 1,314 contacts → | ||||
Exact match “(Underwater Engineering) S.A.L was established in 1976.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 18 | 1,277 contacts → | ||||
Exact match “With more than 50 years of legacy, Maersk Supply Service celebrates a new important milestone: from November 1st, our headquarters are officially located in Brazil.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 19 | 1,257 contacts → | ||||
Exact match “Aries is the largest Engineering, Inspection & Maintenance firm in the Middle East.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 20 | 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 19, 2026 · View company records in RevenueBase | |||||
| 21 | 1,084 contacts → | ||||
Exact match “As a one-stop offshore marine services company, Wintermar Offshore Marine Group strives to support all types of offshore operations, offering innovative vessel and logistical…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 22 | 1,060 contacts → | ||||
Exact match “Shearwater is a global marine geoscience and technology business.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 23 | 1,041 contacts → | ||||
Exact match “Vantage is an international offshore drilling contractor, formed in 2007, which markets, operates and manages modern, high specification drilling rigs.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase | |||||
| 24 | 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 19, 2026 · View company records in RevenueBase | |||||
| 25 | 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 19, 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 “offshore seismic contractors”. 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 2,929 offshore seismic contractors worldwide
See the full list, filter by size, metro and specialty, and access 37,930 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Offshore seismic contractors worldwide at a glance
As of Oct 19, 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 offshore seismic contractors are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “offshore seismic contractors” 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 37,930 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 19, 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.
Offshore seismic contractors by location
22 lists · largest firstEvery Offshore seismic contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Offshore seismic contractors based in the United States475
- Offshore seismic contractors based in the United Kingdom299
- Offshore seismic contractors based in Canada150
- Offshore seismic contractors based in Norway101
- Offshore seismic contractors based in Brazil94
- Offshore seismic contractors based in Australia93
- Offshore seismic contractors based in India92
- Offshore seismic contractors based in Indonesia91
- Offshore seismic contractors based in Nigeria89
- Offshore seismic contractors based in the United Arab Emirates70
- Offshore seismic contractors based in Italy63
- Offshore seismic contractors based in Malaysia51
- Offshore seismic contractors based in the Netherlands51
- Offshore seismic contractors based in France45
- Offshore seismic contractors based in Mexico45
- Offshore seismic contractors based in Germany32
- Offshore seismic contractors based in Spain27
Cities
- Offshore seismic contractors based in Houston, United States142
- Offshore seismic contractors based in Calgary, Canada67
- Offshore seismic contractors based in Rio De Janeiro, Brazil45
- Offshore seismic contractors based in London, United Kingdom43
- Offshore seismic contractors based in Aberdeen, United Kingdom35
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 “offshore seismic contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many offshore seismic contractors are there worldwide?
RevenueBase identified 2,929 company matches for offshore seismic contractors 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 offshore seismic contractors?
The United States leads with 475 companies, followed by the United Kingdom (299) and Canada (150). Every offshore seismic contractors list by country and city is linked on this page.
Which city has the most offshore seismic contractors?
Houston leads with 142 company records, followed by Calgary (67) and Singapore (54).
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 37,930 professional contacts with verified work emails tracked across these 2,929 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 2,929 offshore seismic contractors 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 offshore seismic contractors worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 2,929 matching company records for offshore seismic contractors worldwide, with 200,976 tracked contacts and 37,930 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: October 19, 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 offshore seismic contractors 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, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 56,783 contacts → |
“We collaborate and engineer solutions to maximize asset value for our customers.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Nabors Industriesnabors.comHQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 6,266 contacts → |
“Nabors Industries is a leading provider of advanced technology for the energy industry.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Noble Corporationnoblecorp.comHQ: Houston, TX, United StatesReported employees: 5,001-10,000 | Houston, TX, United States | 5,001-10,000 | Exact match | 5,939 contacts → |
“Noble is a leading offshore drilling contractor for the oil and gas industry.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  PT Elnusa TBKelnusa.co.idHQ: Jakarta Selatan, IndonesiaReported employees: 1,001-5,000 | Jakarta Selatan, Indonesia | 1,001-5,000 | Exact match | 4,167 contacts → |
“We are the one and only national company that possesses combined competencies in oil & gas services: seismic, drilling and oilfield.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  DOFdof.comHQ: Bergen, NorwayReported employees: 5,001-10,000 | Bergen, Norway | 5,001-10,000 | Exact match | 3,269 contacts → |
“With a multi-national workforce of over 5,700 personnel, DOF is an international group of companies which owns and operates a fleet of modern offshore/subsea vessels, with an…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Valaris Limitedvalaris.comHQ: Houston, TX, United StatesReported employees: 5,001-10,000 | Houston, TX, United States | 5,001-10,000 | Exact match | 3,263 contacts → |
“We Are Valaris With decades of expertise and strategic commitment built on efficiency, capability and ingenuity, our sights are continually set toward a future built with purpose…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Heerema Marine Contractorsheerema.comHQ: Leiden, NetherlandsReported employees: 1,001-5,000 | Leiden, Netherlands | 1,001-5,000 | Exact match | 2,792 contacts → |
“Heerema Marine Contractors is a world-leading marine contractor in the international offshore energy industry.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Allseasallseas.comHQ: Châtel-saint-denis, United StatesReported employees: 1,001-5,000 | Châtel-saint-denis, United States | 1,001-5,000 | Exact match | 2,765 contacts → |
“Allseas is a world-leading contractor in the offshore energy market.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Zamil Offshore Services Companyzamiloffshore.comHQ: Al-khobar, Saudi ArabiaReported employees: 1,001-5,000 | Al-khobar, Saudi Arabia | 1,001-5,000 | Exact match | 2,406 contacts → |
“Zamil Offshore Services Company has been offering diversified offshore and marine support services to the oil and gas industry since 1977.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  OCYANocyan-sa.comHQ: Rio De Janeiro, BrazilReported employees: 1,001-5,000 | Rio De Janeiro, Brazil | 1,001-5,000 | Exact match | 2,328 contacts → |
“A OCYAN atua há décadas na prestação de serviços para o setor de óleo e gás upstream, estruturando suas operações em três frentes de atuação.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Free Lancerc-innovation.comHQ: BrazilReported employees: Not recorded | Brazil | Not recorded | Exact match | 2,271 contacts → |
“Rov company.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Grupo CBOgrupocbo.com.brHQ: Niterói, BrazilReported employees: 1,001-5,000 | Niterói, Brazil | 1,001-5,000 | Exact match | 1,972 contacts → |
“O Grupo CBO é uma das maiores empresas de apoio marítimo do Brasil.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Helix Energy Solutions Grouphelixesg.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,771 contacts → |
“Helix Energy Solutions, headquartered in Houston, Texas, is an international offshore energy services company that provides specialty services to the offshore energy industry…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Geolog Internationalgeolog.comHQ: Dubai, United Arab EmiratesReported employees: 1,001-5,000 | Dubai, United Arab Emirates | 1,001-5,000 | Exact match | 1,697 contacts → |
“Every year, drilling teams make decisions worth millions of dollars on incomplete information.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Rawabi Vallianz Offshore Servicesrawabi.comHQ: Al Khobar, Saudi ArabiaReported employees: 1,001-5,000 | Al Khobar, Saudi Arabia | 1,001-5,000 | Exact match | 1,653 contacts → |
“With an extensive fleet of over 200 vessels worldwide, Rawabi Vallianz Offshore Services leverages Rawabi’s expertise to ensure exceptional quality and on-time delivery.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Deepoceandeepoceangroup.com HQ: Oslo, NorwayReported employees: 1,001-5,000 | Oslo, Norway | 1,001-5,000 | Exact match | 1,536 contacts → |
“DeepOcean is a technology-driven, independent solution provider in the ocean space.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  CCC Underwater Engineering S.A.Lcccuwe.netHQ: Abu Dhabi, United Arab EmiratesReported employees: 201-500 | Abu Dhabi, United Arab Emirates | 201-500 | Exact match | 1,314 contacts → |
“(Underwater Engineering) S.A.L was established in 1976.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Maersk Supply Servicemaersksupplyservice.comHQ: Rio De Janeiro, BrazilReported employees: 201-500 | Rio De Janeiro, Brazil | 201-500 | Exact match | 1,277 contacts → |
“With more than 50 years of legacy, Maersk Supply Service celebrates a new important milestone: from November 1st, our headquarters are officially located in Brazil.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Aries Marine And Engineering Servicesariesmar.com HQ: United Arab EmiratesReported employees: 1,001-5,000 | United Arab Emirates | 1,001-5,000 | Exact match | 1,257 contacts → |
“Aries is the largest Engineering, Inspection & Maintenance firm in the Middle East.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  BGPbgp.com.cnHQ: Hebei, ChinaReported employees: 10001+ | Hebei, China | 10001+ | Exact match | 1,189 contacts → |
“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 description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Wintermar Offshore Marine TBKwintermar.comHQ: Kebayoran Lama, IndonesiaReported employees: 501-1,000 | Kebayoran Lama, Indonesia | 501-1,000 | Exact match | 1,084 contacts → |
“As a one-stop offshore marine services company, Wintermar Offshore Marine Group strives to support all types of offshore operations, offering innovative vessel and logistical…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Shearwater Geoservicesshearwatergeo.comHQ: Laksevåg, United StatesReported employees: 1,001-5,000 | Laksevåg, United States | 1,001-5,000 | Exact match | 1,060 contacts → |
“Shearwater is a global marine geoscience and technology business.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Vantage Drillingvantagedrilling.com HQ: Hamilton, BermudaReported employees: 501-1,000 | Hamilton, Bermuda | 501-1,000 | Exact match | 1,041 contacts → |
“Vantage is an international offshore drilling contractor, formed in 2007, which markets, operates and manages modern, high specification drilling rigs.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Carso Perforacióncarso.com.mx HQ: United StatesReported employees: 1,001-5,000 | United States | 1,001-5,000 | Exact match | 1,017 contacts → |
“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 description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Geokinetics INCgeokinetics.comHQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 974 contacts → |
“Headquartered in Houston, Texas, Geokinetics is one of the world’s largest independent land and seafloor geophysical companies.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,929 company matches
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Offshore seismic contractors: dataset insights
October 19, 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
2,916 records in the displayed employee bands.
13 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 2,929 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: October 19, 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 ↗
Offshore seismic contractors by location
22 lists · largest firstEvery Offshore seismic contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Offshore seismic contractors based in the United States475
- Offshore seismic contractors based in the United Kingdom299
- Offshore seismic contractors based in Canada150
- Offshore seismic contractors based in Norway101
- Offshore seismic contractors based in Brazil94
- Offshore seismic contractors based in Australia93
- Offshore seismic contractors based in India92
- Offshore seismic contractors based in Indonesia91
- Offshore seismic contractors based in Nigeria89
- Offshore seismic contractors based in the United Arab Emirates70
- Offshore seismic contractors based in Italy63
- Offshore seismic contractors based in Malaysia51
- Offshore seismic contractors based in the Netherlands51
- Offshore seismic contractors based in France45
- Offshore seismic contractors based in Mexico45
- Offshore seismic contractors based in Germany32
- Offshore seismic contractors based in Spain27
Cities
- Offshore seismic contractors based in Houston, United States142
- Offshore seismic contractors based in Calgary, Canada67
- Offshore seismic contractors based in Rio De Janeiro, Brazil45
- Offshore seismic contractors based in London, United Kingdom43
- Offshore seismic contractors based in Aberdeen, United Kingdom35
Questions about this company list
What does Exact match mean for offshore seismic contractors?
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 offshore seismic contractors did RevenueBase find worldwide?
The saved snapshot records 2,929 matching company records, 200,976 tracked contacts and 37,930 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: October 19, 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 offshore seismic contractors worldwide. Snapshot: October 19, 2026. https://revenuebase.ai/companies/browse/offshore-seismic-contractors.
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 offshore seismic contractors worldwide
RevenueBase records 2,929 matching company records for offshore seismic contractors worldwide, with 200,976 tracked contacts and 37,930 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: October 19, 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 offshore seismic contractors 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, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 56,783 contacts → |
“We collaborate and engineer solutions to maximize asset value for our customers.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Nabors Industriesnabors.com HQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 6,266 contacts → |
“Nabors Industries is a leading provider of advanced technology for the energy industry.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Noble Corporationnoblecorp.com HQ: Houston, TX, United StatesReported employees: 5,001-10,000 | Houston, TX, United States | 5,001-10,000 | Exact match | 5,939 contacts → |
“Noble is a leading offshore drilling contractor for the oil and gas industry.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | PT Elnusa TBKelnusa.co.id HQ: Jakarta Selatan, IndonesiaReported employees: 1,001-5,000 | Jakarta Selatan, Indonesia | 1,001-5,000 | Exact match | 4,167 contacts → |
“We are the one and only national company that possesses combined competencies in oil & gas services: seismic, drilling and oilfield.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | DOFdof.com HQ: Bergen, NorwayReported employees: 5,001-10,000 | Bergen, Norway | 5,001-10,000 | Exact match | 3,269 contacts → |
“With a multi-national workforce of over 5,700 personnel, DOF is an international group of companies which owns and operates a fleet of modern offshore/subsea vessels, with an…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Valaris Limitedvalaris.com HQ: Houston, TX, United StatesReported employees: 5,001-10,000 | Houston, TX, United States | 5,001-10,000 | Exact match | 3,263 contacts → |
“We Are Valaris With decades of expertise and strategic commitment built on efficiency, capability and ingenuity, our sights are continually set toward a future built with purpose…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Heerema Marine Contractorsheerema.com HQ: Leiden, NetherlandsReported employees: 1,001-5,000 | Leiden, Netherlands | 1,001-5,000 | Exact match | 2,792 contacts → |
“Heerema Marine Contractors is a world-leading marine contractor in the international offshore energy industry.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Allseasallseas.com HQ: Châtel-saint-denis, United StatesReported employees: 1,001-5,000 | Châtel-saint-denis, United States | 1,001-5,000 | Exact match | 2,765 contacts → |
“Allseas is a world-leading contractor in the offshore energy market.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Zamil Offshore Services Companyzamiloffshore.com HQ: Al-khobar, Saudi ArabiaReported employees: 1,001-5,000 | Al-khobar, Saudi Arabia | 1,001-5,000 | Exact match | 2,406 contacts → |
“Zamil Offshore Services Company has been offering diversified offshore and marine support services to the oil and gas industry since 1977.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | OCYANocyan-sa.com HQ: Rio De Janeiro, BrazilReported employees: 1,001-5,000 | Rio De Janeiro, Brazil | 1,001-5,000 | Exact match | 2,328 contacts → |
“A OCYAN atua há décadas na prestação de serviços para o setor de óleo e gás upstream, estruturando suas operações em três frentes de atuação.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Free Lancerc-innovation.com HQ: BrazilReported employees: Not recorded | Brazil | Not recorded | Exact match | 2,271 contacts → |
“Rov company.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Grupo CBOgrupocbo.com.br HQ: Niterói, BrazilReported employees: 1,001-5,000 | Niterói, Brazil | 1,001-5,000 | Exact match | 1,972 contacts → |
“O Grupo CBO é uma das maiores empresas de apoio marítimo do Brasil.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Helix Energy Solutions Grouphelixesg.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,771 contacts → |
“Helix Energy Solutions, headquartered in Houston, Texas, is an international offshore energy services company that provides specialty services to the offshore energy industry…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Geolog Internationalgeolog.com HQ: Dubai, United Arab EmiratesReported employees: 1,001-5,000 | Dubai, United Arab Emirates | 1,001-5,000 | Exact match | 1,697 contacts → |
“Every year, drilling teams make decisions worth millions of dollars on incomplete information.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Rawabi Vallianz Offshore Servicesrawabi.com HQ: Al Khobar, Saudi ArabiaReported employees: 1,001-5,000 | Al Khobar, Saudi Arabia | 1,001-5,000 | Exact match | 1,653 contacts → |
“With an extensive fleet of over 200 vessels worldwide, Rawabi Vallianz Offshore Services leverages Rawabi’s expertise to ensure exceptional quality and on-time delivery.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Deepoceandeepoceangroup.com HQ: Oslo, NorwayReported employees: 1,001-5,000 | Oslo, Norway | 1,001-5,000 | Exact match | 1,536 contacts → |
“DeepOcean is a technology-driven, independent solution provider in the ocean space.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | CCC Underwater Engineering S.A.Lcccuwe.net HQ: Abu Dhabi, United Arab EmiratesReported employees: 201-500 | Abu Dhabi, United Arab Emirates | 201-500 | Exact match | 1,314 contacts → |
“(Underwater Engineering) S.A.L was established in 1976.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Maersk Supply Servicemaersksupplyservice.com HQ: Rio De Janeiro, BrazilReported employees: 201-500 | Rio De Janeiro, Brazil | 201-500 | Exact match | 1,277 contacts → |
“With more than 50 years of legacy, Maersk Supply Service celebrates a new important milestone: from November 1st, our headquarters are officially located in Brazil.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Aries Marine And Engineering Servicesariesmar.com HQ: United Arab EmiratesReported employees: 1,001-5,000 | United Arab Emirates | 1,001-5,000 | Exact match | 1,257 contacts → |
“Aries is the largest Engineering, Inspection & Maintenance firm in the Middle East.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | BGPbgp.com.cn HQ: Hebei, ChinaReported employees: 10001+ | Hebei, China | 10001+ | Exact match | 1,189 contacts → |
“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 description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Wintermar Offshore Marine TBKwintermar.com HQ: Kebayoran Lama, IndonesiaReported employees: 501-1,000 | Kebayoran Lama, Indonesia | 501-1,000 | Exact match | 1,084 contacts → |
“As a one-stop offshore marine services company, Wintermar Offshore Marine Group strives to support all types of offshore operations, offering innovative vessel and logistical…” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Shearwater Geoservicesshearwatergeo.com HQ: Laksevåg, United StatesReported employees: 1,001-5,000 | Laksevåg, United States | 1,001-5,000 | Exact match | 1,060 contacts → |
“Shearwater is a global marine geoscience and technology business.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Vantage Drillingvantagedrilling.com HQ: Hamilton, BermudaReported employees: 501-1,000 | Hamilton, Bermuda | 501-1,000 | Exact match | 1,041 contacts → |
“Vantage is an international offshore drilling contractor, formed in 2007, which markets, operates and manages modern, high specification drilling rigs.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Carso Perforacióncarso.com.mx HQ: United StatesReported employees: 1,001-5,000 | United States | 1,001-5,000 | Exact match | 1,017 contacts → |
“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 description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Geokinetics INCgeokinetics.com HQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 974 contacts → |
“Headquartered in Houston, Texas, Geokinetics is one of the world’s largest independent land and seafloor geophysical companies.” Recorded description excerpt · October 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Offshore seismic contractors: dataset insights
October 19, 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
2,916 records in the displayed employee bands.
13 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 2,929 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: October 19, 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 ↗
Offshore seismic contractors by location
22 lists · largest firstEvery Offshore seismic contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Offshore seismic contractors based in the United States475
- Offshore seismic contractors based in the United Kingdom299
- Offshore seismic contractors based in Canada150
- Offshore seismic contractors based in Norway101
- Offshore seismic contractors based in Brazil94
- Offshore seismic contractors based in Australia93
- Offshore seismic contractors based in India92
- Offshore seismic contractors based in Indonesia91
- Offshore seismic contractors based in Nigeria89
- Offshore seismic contractors based in the United Arab Emirates70
- Offshore seismic contractors based in Italy63
- Offshore seismic contractors based in Malaysia51
- Offshore seismic contractors based in the Netherlands51
- Offshore seismic contractors based in France45
- Offshore seismic contractors based in Mexico45
- Offshore seismic contractors based in Germany32
- Offshore seismic contractors based in Spain27
Cities
- Offshore seismic contractors based in Houston, United States142
- Offshore seismic contractors based in Calgary, Canada67
- Offshore seismic contractors based in Rio De Janeiro, Brazil45
- Offshore seismic contractors based in London, United Kingdom43
- Offshore seismic contractors based in Aberdeen, United Kingdom35
Questions about this company list
What does Exact match mean for offshore seismic contractors?
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 offshore seismic contractors did RevenueBase find worldwide?
The saved snapshot records 2,929 matching company records, 200,976 tracked contacts and 37,930 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: October 19, 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.
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Cite this list
RevenueBase Data Team. Top 25 offshore seismic contractors worldwide. Snapshot: October 19, 2026. https://revenuebase.ai/companies/browse/offshore-seismic-contractors.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗