Company lists · Data refreshed September 2026

Top 25 Offshore wind turbine services based in Norway

RevenueBase identified 54 offshore wind turbine services headquartered in Norway as of September 2026 and tracks 3,250 professional contacts across them, including 683 with verified work emails. Oslo is the largest hub.

This list covers offshore wind turbine services 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
54Companies
3,250Contacts tracked
683Verified emails
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The 25 largest offshore wind turbine services based in Norway

Ranked by team size
Top 25 of 54 offshore wind turbine services 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 turbine services: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceOslo, NorwayHQ checked Sep 20, 2026501-1,0001,205 contacts →

Strong evidence

“Seaway7 Seaway7 is a global leader in the delivery of offshore wind projects, committed to contributing to an efficient and sustainable energy supply for the future.”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceUlsteinvik, NorwayHQ checked Sep 20, 2026501-1,000501 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
3Indirect evidenceOslo, NorwayHQ checked Sep 20, 202651-200234 contacts →

Indirect evidence

“Fred.”

Source: RevenueBase Database · checked Sep 20, 2026
4Partial evidenceKristiansand, NorwayHQ checked Sep 20, 2026n/a181 contacts →

Partial evidence

“Aurora Offshore is part of the Borealis Group.”

Source: RevenueBase Database · checked Sep 20, 2026
5Partial evidenceHaugesund, NorwayHQ checked Sep 20, 202651-200137 contacts →

Partial evidence

“Edda Wind has been dissolved and is no longer operating as of May 2026.”

Source: RevenueBase Database · checked Sep 20, 2026
6Strong evidenceOslo, NorwayHQ checked Sep 20, 202611-50119 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
7Strong evidenceOslo, NorwayHQ checked Sep 20, 202651-20088 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
8Strong evidenceÅlesund, NorwayHQ checked Sep 20, 202611-5081 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
9Partial evidenceFornebu, NorwayHQ checked Sep 20, 202651-20078 contacts →

Partial evidence

“Føn Energy Services is an independent service provider to the offshore energy sector.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceSentrum, NorwayHQ checked Sep 20, 202651-20029 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 20, 2026
11Indirect evidenceBergen, NorwayHQ checked Sep 20, 202611-5026 contacts →

Indirect evidence

“WHO are we?”

Source: RevenueBase Database · checked Sep 20, 2026
12Partial evidenceRudskogen, NorwayHQ checked Sep 20, 202651-20023 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
13Indirect evidenceSola, NorwayHQ checked Sep 20, 202651-20020 contacts →

Indirect evidence

“Albatross Industries AS was established in 2006.”

Source: RevenueBase Database · checked Sep 20, 2026
14Strong evidenceHaugesund, NorwayHQ checked Sep 20, 202611-5018 contacts →

Strong evidence

“Norwegian offshore wind is the largest representative offshore wind body in Norway with the overall mission to develop world leading supply chains within floating wind.”

Source: RevenueBase Database · checked Sep 20, 2026
15Partial evidenceLysaker, NorwayHQ checked Sep 20, 2026n/a16 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
16Indirect evidencePorsgrunn/skien, NorwayHQ checked Sep 20, 202611-5015 contacts →

Indirect evidence

“Repair and maintenance of electric motors and generators.”

Source: RevenueBase Database · checked Sep 20, 2026
17Partial evidenceHinna, NorwayHQ checked Sep 20, 202611-5010 contacts →

Partial evidence

“Engineering IDS is an engineering company specializing in offshore technology, concept design, marine services and crane inspections.”

Source: RevenueBase Database · checked Sep 20, 2026
18Partial evidenceKristiansand, NorwayHQ checked Sep 20, 20261-108 contacts →

Partial evidence

“Meventus is a renewable energy consultant and service company with offices in Norway and Sweden delivering services spanning the entire wind power project life cycle to customers…”

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidenceRandaberg, NorwayHQ checked Sep 20, 202611-506 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
20Indirect evidenceTonstad, NorwayHQ checked Sep 20, 202611-506 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
21Indirect evidenceMo I Rana, NorwayHQ checked Sep 20, 202611-504 contacts →

Indirect evidence

“Haneseth Energi jobber med salg og service av elektro og mekaniske installasjoner på flere fagområder som elektromekaniske installasjoner i industri, fiskeoppdrett, kraftanlegg…”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceBergen, NorwayHQ checked Sep 20, 202611-503 contacts →

Indirect evidence

“Lifting and material handling solutions”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceSola, NorwayHQ checked Sep 20, 202611-503 contacts →

Indirect evidence

“Providing maintenance and inspection services along with strategic assets to the Renewable Energy Sector.”

Source: RevenueBase Database · checked Sep 20, 2026
24Strong evidenceHaugesund, NorwayHQ checked Sep 20, 20261-103 contacts →

Strong evidence

“We consult on balance of plant for offshore wind.”

Source: RevenueBase Database · checked Sep 20, 2026
25Partial evidenceSkudeneshavn, NorwayHQ checked Sep 20, 20261-103 contacts →

Partial evidence

“Haakonsen Marine AS is a Norwegian based company that provide services for the marine segment of the offshore oil & gas and renewable energy industries”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 54 offshore wind turbine services based in Norway

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Offshore wind turbine services based in Norway at a glance

As of Sep 20, 2026
21.0%Verified-email coverage
60.2Average contacts per company
11-50Median size (employees)
18.5%Largest-city concentration · Oslo
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
19
51-200
11
201-500
3
501-1,000
3
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 54 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 turbine services, 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 turbine services”. 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 turbine services), 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 turbine services, 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, 683 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 turbine services, 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 turbine services are there based in Norway?

RevenueBase identified 54 offshore wind turbine services 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?

Seaway7, headquartered in Oslo, tops this list with the largest team on record.

Which city has the most offshore wind turbine services?

Oslo leads with 10 headquartered companies, followed by Haugesund (4) and Bergen (3).

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 683 verified decision-maker contacts tracked across these 54 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.