Company lists · Data refreshed September 2026

Top 25 Marine and subsea consulting firms based in Norway

RevenueBase identified 523 company matches for marine and subsea consulting firms associated with Norway as of September 2026 and tracks 24,755 professional contacts across them, including 6,950 with verified work emails. Oslo is the largest hub.

This list covers company matches for marine and subsea consulting firms 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 September 28, 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 Sep 28, 2026 How this list was built
523Companies
24,755Contacts tracked
6,950Verified emails
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The 25 largest marine and subsea consulting firms based in Norway

Ranked by team size
Top 25 of 523 company matches for marine and subsea consulting firms based in Norway, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 matchKongsberg, NorwayHQ recorded Sep 28, 20265,001-10,0005,555 contacts →

Exact match

“Kongsberg Maritime is your trusted partner in navigating the complexities of the maritime industry.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchBergen, NorwayHQ recorded Sep 28, 20265,001-10,0002,942 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 · Sep 28, 2026 · View company records in RevenueBase
3Exact matchOslo, NorwayHQ recorded Sep 28, 20261,001-5,0002,553 contacts →

Exact match

“Multiconsult Norway is one of the leading firms of architectures, consulting engineers and designers in Norway.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchLaksevåg, NorwayHQ recorded Sep 28, 20261,001-5,0001,031 contacts →

Exact match

“Shearwater is a global marine geoscience and technology business.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchOslo, NorwayHQ recorded Sep 28, 2026501-1,000768 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 · Sep 28, 2026 · View company records in RevenueBase
6Exact matchStavanger, NorwayHQ recorded Sep 28, 20261,001-5,000718 contacts →

Exact match

“We are Moreld Apply, a leading multi-discipline engineering company, specializing in contracts across all project phases - from concept development and studies to completion and…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchSandnes, NorwayHQ recorded Sep 28, 2026501-1,000629 contacts →

Exact match

“Always do better" is our guiding principle leading us through the energy transition and towards our vision of becoming the preferred supplier of drilling services.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchUlsteinvik, NorwayHQ recorded Sep 28, 2026501-1,000501 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 · Sep 28, 2026 · View company records in RevenueBase
9Exact matchStavanger, NorwayHQ recorded Sep 28, 2026201-500472 contacts →

Exact match

“Global Maritime delivers integrated marine solutions for a changing offshore world.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchHaugesund, NorwayHQ recorded Sep 28, 2026201-500454 contacts →

Exact match

“Reach Subsea ASA (“Reach Subsea”, “Reach” or “the Group”) is a prominent offshore contractor that offer high quality solutions and technology to clients in need of ocean data and…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchLangevag, NorwayHQ recorded Sep 28, 2026501-1,000308 contacts →

Exact match

“Offshore Shipping Company.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchStavanger, NorwayHQ recorded Sep 28, 2026201-500299 contacts →

Exact match

“Ocean Installer is a leading marine construction company that specializes in offshore installation services with more than 15 years of experience delivering large and complex…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchFosnavåg, NorwayHQ recorded Sep 28, 2026201-500288 contacts →

Exact match

“About Rem Offshore Rem Offshore is a new company with old roots – tracing back to 1978 with fishery activities in Norway, Rem Offshore organisation today operates worldwide, with…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchOslo, NorwayHQ recorded Sep 28, 2026201-500233 contacts →

Exact match

“AKOFS Offshore is a global provider of vessel based subsea well construction and intervention services to the oil and gas industry.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchBergen, NorwayHQ recorded Sep 28, 2026201-500209 contacts →

Exact match

“Omega Subsea delivers ROV, survey, engineering, and subsea project services to the global offshore industry.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchFosnavåg Brygge 2.etg, NorwayHQ recorded Sep 28, 2026501-1,000201 contacts →

Exact match

“For thousands of years, people on Norway’s weather torn west coast have ridden the waves and conquered the sea.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchAksdal, NorwayHQ recorded Sep 28, 2026201-500199 contacts →

Exact match

“Imenco is a group of companies working mainly in five main business areas: Offshore oil & gas, offshore renewables, aquaculture, marine & naval and industrial.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchBergen, NorwayHQ recorded Sep 28, 2026201-500199 contacts →

Exact match

“Endúr ASA is a well established supplier of products, services and solutions to the both maritim industry, the marine market and aquaculture.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchBergen, NorwayHQ recorded Sep 28, 2026501-1,000194 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 · Sep 28, 2026 · View company records in RevenueBase
20Exact matchLysaker, NorwayHQ recorded Sep 28, 2026201-500172 contacts →

Exact match

“Buksér og Berging AS is a leading supplier of marine services within port and terminals, ocean towage, offshore work and complex marine operations.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchLysaker, NorwayHQ recorded Sep 28, 202651-200125 contacts →

Exact match

“Consulting, design and engineering for offshore, coastal and civil construction.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchStavanger, NorwayHQ recorded Sep 28, 202651-200123 contacts →

Exact match

“IK SUBSEA - IK TOPSIDE - IK TRAX - IZOMAX - NORCLAMP Our clever use of proven technology makes your flowlines and pipelines run safely and profitably.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchAalesund, NorwayHQ recorded Sep 28, 2026201-500120 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 · Sep 28, 2026 · View company records in RevenueBase
24Exact matchSandsli, NorwayHQ recorded Sep 28, 202651-200114 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 · Sep 28, 2026 · View company records in RevenueBase
25Exact matchBergen, NorwayHQ recorded Sep 28, 202611-50108 contacts →

Exact match

“Sevan Deepwater Technology is a specialized marine engineering and design house.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 523 marine and subsea consulting firms based in Norway

See the full list, filter by size, metro and specialty, and access 6,950 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Marine and subsea consulting firms based in Norway at a glance

As of Sep 28, 2026
28.1%Verified-email coverage
47.3Average contacts per company
11-50Median size (employees)
13.0%Largest-city concentration · Oslo
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
239
11-50
179
51-200
60
201-500
27
501-1,000
9
1,001-5,000
5
5,001-10,000
3
10001+
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 523 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 “marine and subsea consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. 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 6,950 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 September 28, 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 “marine and subsea consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many marine and subsea consulting firms are there based in Norway?

RevenueBase identified 523 company matches for marine and subsea consulting firms associated with Norway as of September 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?

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

Which city has the most marine and subsea consulting firms?

Oslo leads with 68 company records, followed by Stavanger (39) and Bergen (25).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 6,950 professional contacts with verified work emails tracked across these 523 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 September 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 523 marine and subsea consulting firms based in Norway. 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.