Company lists · Data refreshed September 2026

Top 25 Offshore wind maintenance companies based in Norway

Name: Offshore wind maintenance companies based in Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 58 companies tracked

RevenueBase identified 58 offshore wind maintenance companies headquartered in Norway as of September 2026 and tracks 3,032 professional contacts across them, including 320 with verified work emails. Oslo is the largest hub.

This list covers offshore wind maintenance 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 20, 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 20, 2026 86% judged on-target in blind review

58Companies

3,032Contacts tracked

320Verified emails

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The 25 largest offshore wind maintenance companies based in Norway

Ranked by team size

Top 25 of 58 offshore wind maintenance companies based in Norway, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to offshore wind maintenance 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	Island Offshore	Partial evidence	Ulsteinvik, NorwayHQ checked Sep 20, 2026	501-1,000	501 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
2	REM Offshore	Partial evidence	Fosnavåg, NorwayHQ checked Sep 20, 2026	201-500	288 contacts →
	Partial 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 20, 2026
3	Fred. Olsen Windcarrier	Indirect evidence	Oslo, NorwayHQ checked Sep 20, 2026	51-200	234 contacts →
	Indirect evidence “Fred.” Source: RevenueBase Database · checked Sep 20, 2026
4	Aurora Offshore AS	Partial evidence	Kristiansand, NorwayHQ checked Sep 20, 2026	n/a	181 contacts →
	Partial evidence “Aurora Offshore is part of the Borealis Group.” Source: RevenueBase Database · checked Sep 20, 2026
5	Edda Wind	Partial evidence	Haugesund, NorwayHQ checked Sep 20, 2026	51-200	137 contacts →
	Partial evidence “Edda Wind has been dissolved and is no longer operating as of May 2026.” Source: RevenueBase Database · checked Sep 20, 2026
6	Havila Subsea & Renewables	Strong evidence	Aalesund, NorwayHQ checked Sep 20, 2026	201-500	120 contacts →
	Strong 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 20, 2026
7	Integrated Wind Solutions ASA	Strong evidence	Oslo, NorwayHQ checked Sep 20, 2026	11-50	119 contacts →
	Strong evidence “Integrated Wind Solutions ASA aims to become a leading integrated provider of offshore wind services.” Source: RevenueBase Database · checked Sep 20, 2026
8	IKM Ocean Design AS	Partial evidence	Sandnes, NorwayHQ checked Sep 20, 2026	51-200	91 contacts →
	Partial evidence “IKM Ocean Design is a leading innovative and independent company within development and design of offshore and subsea fields with more than 35 years of experience.” Source: RevenueBase Database · checked Sep 20, 2026
9	Havfram	Strong evidence	Oslo, NorwayHQ checked Sep 20, 2026	51-200	88 contacts →
	Strong 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 20, 2026
10	Norwind Offshore	Strong evidence	Ålesund, NorwayHQ checked Sep 20, 2026	11-50	81 contacts →
	Strong 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 20, 2026
11	FØN Energy Services	Partial evidence	Fornebu, NorwayHQ checked Sep 20, 2026	51-200	78 contacts →
	Partial evidence “Føn Energy Services is an independent service provider to the offshore energy sector.” Source: RevenueBase Database · checked Sep 20, 2026
12	CCB	Partial evidence	Agotnes, NorwayHQ checked Sep 20, 2026	51-200	68 contacts →
	Partial evidence “CCB offers Supply and Support bases, Total Logistics Operations, Project Logistics, Rig Maintenance and Modifications and Subsea Maintenance at key locations along the coast of…” Source: RevenueBase Database · checked Sep 20, 2026
13	Uptime International AS	Strong evidence	Avaldsnes, NorwayHQ checked Sep 20, 2026	51-200	67 contacts →
	Strong evidence “UPTIME INTERNATIONAL is the global leader in developing safe motion compensated logistics solutions for sale and rental to the Offshore Wind and to the Oil & Gas Industry.” Source: RevenueBase Database · checked Sep 20, 2026
14	MSI	Indirect evidence	Drøbak, NorwayHQ checked Sep 20, 2026	51-200	53 contacts →
	Indirect evidence “We bring the shipyard to you" MSI specialises in working while the asset is in operation.” Source: RevenueBase Database · checked Sep 20, 2026
15	NOR Offshore Rental	Partial evidence	Haugesund, NorwayHQ checked Sep 20, 2026	11-50	47 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
16	Noble Installation AS	Partial evidence	Rudskogen, NorwayHQ checked Sep 20, 2026	51-200	23 contacts →
	Partial evidence “Om NOBLE INSTALLATION AS: Heleid datterselskap av Noble AS, etablert i Vår virksomhet er innenfor marine operasjoner, offshore installasjon, mekanisk montasje og produksjon.” Source: RevenueBase Database · checked Sep 20, 2026
17	North Well Gefro AS	Partial evidence	Randaberg, NorwayHQ checked Sep 20, 2026	51-200	21 contacts →
	Partial evidence “NWG offers rapid response and fast delivery of repairs and maintenance of mechanical, drilling and subsea equipment.” Source: RevenueBase Database · checked Sep 20, 2026
18	Albatross Industries AS	Indirect evidence	Sola, NorwayHQ checked Sep 20, 2026	51-200	20 contacts →
	Indirect evidence “Albatross Industries AS was established in 2006.” Source: RevenueBase Database · checked Sep 20, 2026
19	Windstaller Alliance AS	Partial evidence	Lysaker, NorwayHQ checked Sep 20, 2026	n/a	16 contacts →
	Partial 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 20, 2026
20	Motor & Generator Service AS	Partial evidence	Porsgrunn/skien, NorwayHQ checked Sep 20, 2026	11-50	15 contacts →
	Partial evidence “Repair and maintenance of electric motors and generators.” Source: RevenueBase Database · checked Sep 20, 2026
21	Niro Gruppen	Partial evidence	Kleppestø, NorwayHQ checked Sep 20, 2026	11-50	13 contacts →
	Partial evidence “Vi i NIRO Gruppen er totalleverandør av vedlikeholdstjenester for Eiendom, Industri og Offshore.” Source: RevenueBase Database · checked Sep 20, 2026
22	Offshore & Marine Services AS	Partial evidence	Ortnevik, NorwayHQ checked Sep 20, 2026	1-10	8 contacts →
	Partial evidence “Offshore & Marine Services provides high quality engineering, planning, project management, advisory services, installation, commissioning, troubleshooting and preventive…” Source: RevenueBase Database · checked Sep 20, 2026
23	Ship & RIG Service AS	Partial evidence	Randaberg, NorwayHQ checked Sep 20, 2026	11-50	6 contacts →
	Partial evidence “Ship & Rig Service AS was founded in 2016 by a group of dedicated professionals with over 30 years of experience within Maritime and Offshore Industry.” Source: RevenueBase Database · checked Sep 20, 2026
24	Steis Mekaniske Verksted AS	Indirect evidence	Tonstad, NorwayHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “Steis mekaniske verksted AS is a machinery company based out of Bjønnøyveien 2, Tonstad, Norway.” Source: RevenueBase Database · checked Sep 20, 2026
25	IKM Inwind AS	Partial evidence	Sola, NorwayHQ checked Sep 20, 2026	11-50	3 contacts →
	Partial evidence “Providing maintenance and inspection services along with strategic assets to the Renewable Energy Sector.” Source: RevenueBase Database · checked Sep 20, 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: offshore wind maintenance 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 offshore wind maintenance companies.
Partial evidence: Its own public description names part of offshore wind maintenance companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offshore wind maintenance 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 58 offshore wind maintenance companies based in Norway

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Offshore wind maintenance companies based in Norway at a glance

As of Sep 20, 2026

10.6%Verified-email coverage

52.3Average contacts per company

11-50Median size (employees)

10.3%Largest-city concentration · Oslo

Sep 20, 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 58 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 offshore wind maintenance 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 “offshore wind maintenance 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 offshore wind maintenance 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 offshore wind maintenance 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, 320 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 20, 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 offshore wind maintenance 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 offshore wind maintenance companies are there based in Norway?

RevenueBase identified 58 offshore wind maintenance 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?

Island Offshore, headquartered in Ulsteinvik, tops this list with the largest team on record.

Which city has the most offshore wind maintenance companies?

Oslo leads with 6 headquartered companies, followed by Haugesund (3) and Aalesund (2).

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 320 verified decision-maker contacts tracked across these 58 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 20, 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.