Company lists · Data refreshed November 2026

Top 25 Offshore seismic contractors based in Norway

RevenueBase identified 93 company matches for offshore seismic contractors associated with Norway as of November 2026 and tracks 8,371 professional contacts across them, including 2,585 with verified work emails. Stavanger is the largest hub.

This list covers company matches for offshore seismic contractors associated with Norway, 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.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
93Companies
8,371Contacts tracked
2,585Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest offshore seismic contractors based in Norway

Ranked by team size
Top 25 of 93 company matches for offshore seismic contractors based in Norway, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchOslo, NorwayHQ recorded Nov 6, 20261,001-5,0001,607 contacts →

Exact match

“DeepOcean is a technology-driven, independent solution provider in the ocean space.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchUlsteinvik, NorwayHQ recorded Nov 6, 2026501-1,000538 contacts →

Exact match

“Island Offshore - The Island Offshore Group is a leading provider of services to the offshore industry ranging from Platform Supply, Walk-to-work and Anchor Handling to Advanced…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchHaugesund, NorwayHQ recorded Nov 6, 2026501-1,000488 contacts →

Exact match

“Reach Subsea is an offshore contractor delivering subsea services and ocean data, survey, inspection, maintenance and repair, and construction support for offshore energy and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLangevag, NorwayHQ recorded Nov 6, 2026501-1,000333 contacts →

Exact match

“Offshore Shipping Company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBergen, NorwayHQ recorded Nov 6, 2026501-1,000217 contacts →

Exact match

“SeaBird Exploration is a wholly owned subsidiary of SED Energy Holdings Plc, which is listed on Euronext Oslo Børs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchAustevoll, NorwayHQ recorded Nov 6, 2026n/a164 contacts →

Exact match

“Vestland Offshore AS is a worldwide shipping company within the offshore oil & gas and renewable industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchAalesund, NorwayHQ recorded Nov 6, 2026201-500134 contacts →

Exact match

“Havila Subsea & Renewables operates an advanced fleet of vessels dedicated to Diving, Offshore Inspection, Repair, and Maintenance (IRM), as well as Construction.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSandsli, NorwayHQ recorded Nov 6, 202651-200131 contacts →

Exact match

“Island Drilling was established in 2006 by industry veterans and Island Offshore, the leading global player in well intervention, to build and own special purpose semi-submersible…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLysaker, NorwayHQ recorded Nov 6, 2026201-500130 contacts →

Exact match

“On January 5, 2023, Magseis Fairfield was acquired by TGS.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchOslo, NorwayHQ recorded Nov 6, 202611-5088 contacts →

Exact match

“EMGS Global AS (EMGS) is a leading provider of marine electromagnetic (EM) data and technology for offshore subsurface exploration and development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchÅkrehamn, NorwayHQ recorded Nov 6, 202611-5051 contacts →

Exact match

“RTS is a supplier of engineering solutions, equipment rental, product sales and personnel supply.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchHaugesund, NorwayHQ recorded Nov 6, 202611-5044 contacts →

Exact match

“SubseaPartner is a leading diving contractor in the shallow-deep segment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchOslo, NorwayHQ recorded Nov 6, 2026201-50044 contacts →

Exact match

“Spectrum provides high quality Multi-Client seismic data and Seismic Imaging solutions to global oil and gas exploration companies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBergen, NorwayHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“Swire Seabed provides a highly flexible range of integrated subsea services to the global Oil & Gas and renewables industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchÅlesund, NorwayHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“We are situated at the centre of the North Sea oil activities, and we are a part of one of the world's leading maritime clusters.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchÅlesund, NorwayHQ recorded Nov 6, 2026201-50032 contacts →

Exact match

“Maritim Management AS is a vessel management company located in Ålesund.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchHaugesund, NorwayHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Diving & maintenance contractor operating worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSandnes, NorwayHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“Allton is a Technology & Service company that specialises in Ocean Bottom Node data acquisition for Hydrocarbon Exploration and Production (E&P), CO2 Measurement Monitoring and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchStavanger, NorwayHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“Stinger Technology AS is an innovative solution provider focusing on underwater wells monitoring, seabed surveys and jacket inspections.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBergen, NorwayHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“Vi utfører oppdrag innen mudring, sprenging, riving, konstruksjon, inspeksjon og mye mer under vann.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchTananger, NorwayHQ recorded Nov 6, 202651-20024 contacts →

Exact match

“WellPartner AS is a service company that delivers technical expertise and high quality equipment and services within subsea drilling, completion and intervention operations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchHaugesund, NorwayHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“NOR wants a world where the offshore, subsea, and renewable industries share a common pool of state-of-the-art equipment, so that everything is efficient, cost effective, and more…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchStavanger, NorwayHQ recorded Nov 6, 20261,001-5,00021 contacts →

Exact match

“Moreld is an industrial multi-disciplinary engineering group offering full-scope services across the offshore energy and marine industries including subsea installations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact match4312, NorwayHQ recorded Nov 6, 202651-20018 contacts →

Exact match

“NPT AS er et selskap som tilbyr spesialtjenester og utleie av utstyr til offshore, marine og Subsea industrien.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchTrondheim, NorwayHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Exploro is a leading provider of specialized subsurface services to the Exploration and Production (E&P) industry, with a proven track record of excellence since its establishment…”

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

Showing 25 of 93 offshore seismic contractors based in Norway

See the full list, filter by size, metro and specialty, and access 2,585 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Offshore seismic contractors based in Norway at a glance

As of Nov 6, 2026
30.9%Verified-email coverage
90.0Average contacts per company
11-50Median size (employees)
12.9%Largest-city concentration · Stavanger
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
37
11-50
34
51-200
10
201-500
5
501-1,000
4
1,001-5,000
2
5,001-10,000
1

Email recency for this list is measured worldwide rather than for Norway, so it is reported there. Company counts and contact totals on this page are exact for Norway, over 93 companies.

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.
What qualifies
Company records associated with Norway 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 2,585 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.

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 based in Norway?

RevenueBase identified 93 company matches for offshore seismic contractors associated with Norway 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?

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

Which city has the most offshore seismic contractors?

Stavanger leads with 12 company records, followed by Oslo (9) and Haugesund (8).

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 2,585 professional contacts with verified work emails tracked across these 93 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 93 offshore seismic contractors based in Norway. Start with a free account, no credit card.

Download this list →

Related lists

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.