Company lists · Data refreshed September 2026

Top 25 Marine energy companies based in Norway

Name: Marine energy companies based in Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 77 companies tracked

RevenueBase identified 77 marine energy companies headquartered in Norway as of September 2026 and tracks 3,779 professional contacts across them, including 1,392 with verified work emails. Oslo is the largest hub.

This list covers marine energy companies headquartered in Norway, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

77Companies

3,779Contacts tracked

1,392Verified emails

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The 25 largest marine energy companies based in Norway

Ranked by team size

Top 25 of 77 marine energy companies based in Norway, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to marine energy companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Shearwater Geoservices	Partial evidence	Laksevåg, NorwayHQ checked Sep 17, 2026	1,001-5,000	1,031 contacts →
	Partial evidence “Shearwater is a global marine geoscience and technology business.” Source: RevenueBase Database · checked Sep 17, 2026
2	Global Maritime	Partial evidence	Stavanger, NorwayHQ checked Sep 17, 2026	201-500	472 contacts →
	Partial evidence “Global Maritime delivers integrated marine solutions for a changing offshore world.” Source: RevenueBase Database · checked Sep 17, 2026
3	BW LNG	Indirect evidence	Oslo, NorwayHQ checked Sep 17, 2026	1,001-5,000	416 contacts →
	Indirect evidence “BW LNG is a leading developer, owner and operator of floating gas infrastructure solutions.” Source: RevenueBase Database · checked Sep 17, 2026
4	REM Offshore	Indirect evidence	Fosnavåg, NorwayHQ checked Sep 17, 2026	201-500	288 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
5	Olympic Subsea ASA	Indirect evidence	Fosnavåg Brygge 2.etg, NorwayHQ checked Sep 17, 2026	501-1,000	201 contacts →
	Indirect evidence “For thousands of years, people on Norway’s weather torn west coast have ridden the waves and conquered the sea.” Source: RevenueBase Database · checked Sep 17, 2026
6	Manta Marine Technologies	Partial evidence	Oslo, NorwayHQ checked Sep 17, 2026	51-200	146 contacts →
	Partial evidence “Manta Marine Technologies has been at the forefront of maritime emissions reduction since 2010.” Source: RevenueBase Database · checked Sep 17, 2026
7	Havila Subsea & Renewables	Indirect evidence	Aalesund, NorwayHQ checked Sep 17, 2026	201-500	120 contacts →
	Indirect evidence “Havila Subsea & Renewables operates an advanced fleet of vessels dedicated to Diving, Offshore Inspection, Repair, and Maintenance (IRM), as well as Construction.” Source: RevenueBase Database · checked Sep 17, 2026
8	BOS Power	Strong evidence	Bergen, NorwayHQ checked Sep 17, 2026	201-500	90 contacts →
	Strong evidence “BOS Power specializes in sustainable propulsion, energy storage, and power generation solutions, ensuring the reliability of critical operations in industries such as marine, data…” Source: RevenueBase Database · checked Sep 17, 2026
9	Havfram	Indirect evidence	Oslo, NorwayHQ checked Sep 17, 2026	51-200	88 contacts →
	Indirect evidence “Havfram is a pure play offshore wind company, providing transport and installation services to the offshore wind sector as an owner and operator of Wind Turbine Installation…” Source: RevenueBase Database · checked Sep 17, 2026
10	Norwind Offshore	Partial evidence	Ålesund, NorwayHQ checked Sep 17, 2026	11-50	81 contacts →
	Partial evidence “Purpose-built vessels, designed specifically for advanced maritime operations in the development and service of the offshore wind market.” Source: RevenueBase Database · checked Sep 17, 2026
11	ARGEO	Indirect evidence	Asker, NorwayHQ checked Sep 17, 2026	51-200	71 contacts →
	Indirect evidence “Argeo was established by an experienced team of professionals in 2017 with HQ in Asker, Norway.” Source: RevenueBase Database · checked Sep 17, 2026
12	Norwegian Electric Systems NES	Partial evidence	Godvik, NorwayHQ checked Sep 17, 2026	51-200	69 contacts →
	Partial evidence “Norwegian Electric Systems is a world leading total supplier of low and zero emission propulsion and control systems for a wide range of vessels for the global marine market.” Source: RevenueBase Database · checked Sep 17, 2026
13	Moss Maritime	Strong evidence	Lysaker, NorwayHQ checked Sep 17, 2026	51-200	65 contacts →
	Strong evidence “Moss Maritime provides leading technology and expertise within design and engineering services to the offshore energy sector as well as other ocean-based sectors.” Source: RevenueBase Database · checked Sep 17, 2026
14	Vårgrønn	Partial evidence	Stavanger, NorwayHQ checked Sep 17, 2026	11-50	56 contacts →
	Partial evidence “Vårgrønn is an agile, Norway-based offshore wind company powering the energy transition through development, construction, operation, and ownership of offshore wind energy and…” Source: RevenueBase Database · checked Sep 17, 2026
15	Acel Group	Partial evidence	Ålesund, NorwayHQ checked Sep 17, 2026	51-200	47 contacts →
	Partial evidence “We deliver tailored electric solutions for maritime, land-based aquaculture, buildings and industry.” Source: RevenueBase Database · checked Sep 17, 2026
16	Inocean	Indirect evidence	Sentrum, NorwayHQ checked Sep 17, 2026	51-200	29 contacts →
	Indirect evidence “Inocean delivers design, engineering- and project management services, and cover Oil & Gas as well as the Renewable Industry.” Source: RevenueBase Database · checked Sep 17, 2026
17	Norside Wind AS	Indirect evidence	Bergen, NorwayHQ checked Sep 17, 2026	1-10	29 contacts →
	Indirect evidence “Battery powered W2W vessels” Source: RevenueBase Database · checked Sep 17, 2026
18	Deep Wind Offshore	Partial evidence	Haugesund, NorwayHQ checked Sep 17, 2026	11-50	28 contacts →
	Partial evidence “Deep Wind Offshore skal utvikle og generere fornybar energi, og vi har eiere som ønsker vekst i sektoren.” Source: RevenueBase Database · checked Sep 17, 2026
19	Fjord Maritime	Partial evidence	Øvre Ervik, NorwayHQ checked Sep 17, 2026	11-50	26 contacts →
	Partial evidence “Fjord Maritime is a technical supplier to the aquaculture industry.” Source: RevenueBase Database · checked Sep 17, 2026
20	Fsubsea	Partial evidence	Oslo, NorwayHQ checked Sep 17, 2026	11-50	20 contacts →
	Partial evidence “FSubsea is a Norwegian ocean technology company focused on climate-smart subsea desalination systems, as well as robust subsea pumping systems for a variety of energy and green…” Source: RevenueBase Database · checked Sep 17, 2026
21	HAV Group ASA	Partial evidence	Fosnavåg, NorwayHQ checked Sep 17, 2026	201-500	18 contacts →
	Partial evidence “HAV Group is an international provider of technology and services for maritime and marine industries.” Source: RevenueBase Database · checked Sep 17, 2026
22	Windstaller Alliance AS	Indirect evidence	Lysaker, NorwayHQ checked Sep 17, 2026	n/a	16 contacts →
	Indirect evidence “Windstaller Alliance is combining the expertise of three offshore industry leaders to deliver an integrated and highly flexible offering of products, fabrication services, subsea…” Source: RevenueBase Database · checked Sep 17, 2026
23	Wind Catching Systems	Indirect evidence	Oslo, NorwayHQ checked Sep 17, 2026	1-10	13 contacts →
	Indirect evidence “Wind Catching Systems develops floating offshore wind technology.” Source: RevenueBase Database · checked Sep 17, 2026
24	Alotta	Partial evidence	Ålesund, NorwayHQ checked Sep 17, 2026	11-50	13 contacts →
	Partial evidence “Alotta, previously known as Inseanergy, is a Norwegian company with the ambition to make renewable energy available in more places, for more people.” Source: RevenueBase Database · checked Sep 17, 2026
25	Marine Hybrid Solutions	Strong evidence	Horten, NorwayHQ checked Sep 17, 2026	11-50	11 contacts →
	Strong evidence “Marine Hybrid Solutions deliver optimized, integrated and easily operated hybrid and electric power and energy systems for cargo ships, workboats, passenger and service vessels in…” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: marine energy companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names marine energy companies.
Partial evidence: Its own public description names part of marine energy companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine energy companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 77 marine energy companies based in Norway

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Marine energy companies based in Norway at a glance

As of Sep 17, 2026

36.8%Verified-email coverage

49.1Average contacts per company

11-50Median size (employees)

18.2%Largest-city concentration · Oslo

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 77 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among marine energy companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Norway whose own description of what they do matches “marine energy companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names marine energy companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among marine energy companies, and records with no verified work email. Companies headquartered outside Norway are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 1,392 across the full list. 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 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names marine energy companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many marine energy companies are there based in Norway?

RevenueBase identified 77 marine energy companies headquartered in Norway as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Shearwater Geoservices, headquartered in Laksevag, tops this list with the largest team on record.

Which city has the most marine energy companies?

Oslo leads with 14 headquartered companies, followed by Stavanger (8) and Bergen (7).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,392 verified decision-maker contacts tracked across these 77 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, 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.