Company lists · Data refreshed November 2026

Top 25 Offshore platform installation services based in Norway

Name: Offshore platform installation services based in Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 148 companies tracked

RevenueBase identified 148 company matches for offshore platform installation services associated with Norway as of November 2026 and tracks 6,232 professional contacts across them, including 1,864 with verified work emails. Stavanger is the largest hub.

This list covers company matches for offshore platform installation services 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 5, 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 5, 2026 How this list was built

148Companies

6,232Contacts tracked

1,864Verified emails

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The 25 largest offshore platform installation services based in Norway

Ranked by team size

Top 25 of 148 company matches for offshore platform installation services based in Norway, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Deepocean	Exact match	Oslo, NorwayHQ recorded Nov 5, 2026	1,001-5,000	1,607 contacts →
	Exact match “DeepOcean is a technology-driven, independent solution provider in the ocean space.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Mhwirth	Exact match	Kristiansand, NorwayHQ recorded Nov 5, 2026	1,001-5,000	581 contacts →
	Exact match “October 2021.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	Island Offshore	Exact match	Ulsteinvik, NorwayHQ recorded Nov 5, 2026	501-1,000	538 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 5, 2026 · View company records in RevenueBase
4	Linjebygg AS	Exact match	Molde, NorwayHQ recorded Nov 5, 2026	201-500	260 contacts →
	Exact match “Linjebygg provides LIFE CYCLE EXTENSION.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	Norwegian Group	Exact match	Volda, NorwayHQ recorded Nov 5, 2026	201-500	152 contacts →
	Exact match “Norwegian Group AS is a holding company that has a group with several companies under it.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	NLI AS	Exact match	Vear, NorwayHQ recorded Nov 5, 2026	201-500	134 contacts →
	Exact match “NLI gruppen er en komplett leverandør av engineering, fabrikasjon, installasjons- og vedlikeholdstjenester med nøkkelkompetanse på stålkonstruksjoner, rør, overflatebehandling og…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Island Drilling Company AS	Exact match	Sandsli, NorwayHQ recorded Nov 5, 2026	51-200	131 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 5, 2026 · View company records in RevenueBase
8	Technip India Limited	Exact match	Sandvika, NorwayHQ recorded Nov 5, 2026	51-200	116 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	Techouse AS	Exact match	Sandnes, NorwayHQ recorded Nov 5, 2026	51-200	106 contacts →
	Exact match “Techouse is a leader in the provision of offshore platform processing equipment and services to the international oil & gas industry.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	NYMO	Exact match	Grimstad, NorwayHQ recorded Nov 5, 2026	201-500	99 contacts →
	Exact match “Nymo is a full-service engineering, procurement and construction company within the oil & gas and process industry.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Havfram	Exact match	Oslo, NorwayHQ recorded Nov 5, 2026	51-200	81 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	On & Offshore Services	Exact match	Kristiansand, NorwayHQ recorded Nov 5, 2026	51-200	74 contacts →
	Exact match “On & Offshore offer staffing for demanding projects in the oil and gas industry and career opportunities for skilled workers who want a job in the North Sea or on land-based…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Langset Group AS	Exact match	Molde, NorwayHQ recorded Nov 5, 2026	501-1,000	72 contacts →
	Exact match “Langset is a portfolio of companies delivering project solutions and resources to the Oil & Gas, Energy, Maritime and Processing Sectors.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	Moss Maritime	Exact match	Lysaker, NorwayHQ recorded Nov 5, 2026	51-200	69 contacts →
	Exact match “Moss Maritime provides leading technology and expertise within design and engineering services to the offshore energy sector as well as other ocean-based sectors.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	WEPCO	Exact match	Stavanger, NorwayHQ recorded Nov 5, 2026	11-50	65 contacts →
	Exact match “Wepco AS ble etablert i 1986 og er i dag et moderne og velutstyrt service-verksted med høyt kvalifisert personell.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	SUB SEA Services AS	Exact match	Stavanger, NorwayHQ recorded Nov 5, 2026	51-200	59 contacts →
	Exact match “Sub Sea Services is a solution-focused, flexible and collaboration oriented partner to the offshore drilling industry.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	FØN Energy Services	Exact match	Fornebu, NorwayHQ recorded Nov 5, 2026	51-200	57 contacts →
	Exact match “Føn Energy Services is an independent service provider to the offshore energy sector.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Subseadesign AS	Exact match	Lierbyen, NorwayHQ recorded Nov 5, 2026	51-200	52 contacts →
	Exact match “SubseaDesign (SD) is an engineering, design and fabrication company providing equipment and services for the oil and gas industry.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Reinertsen AS	Exact match	Trondheim, NorwayHQ recorded Nov 5, 2026	501-1,000	52 contacts →
	Exact match “REINERTSEN AS ble etablert i 1946 og er i dag et leverandørselskap innenfor olje & gass, samt ny energi.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	RTS	Exact match	Åkrehamn, NorwayHQ recorded Nov 5, 2026	11-50	51 contacts →
	Exact match “RTS is a supplier of engineering solutions, equipment rental, product sales and personnel supply.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	Semar AS	Exact match	Lysaker, NorwayHQ recorded Nov 5, 2026	11-50	51 contacts →
	Exact match “Semar was founded in 1980 as an independent engineering consultant firm devoted primarily to the offshore oil and gas industry.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Tratec	Exact match	Kristiansand, NorwayHQ recorded Nov 5, 2026	201-500	49 contacts →
	Exact match “Tratec is a supplier of technical solutions within electrical, automation, mechanical and piping to the offshore & marine, process industry and construction market.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Subseapartner AS	Exact match	Haugesund, NorwayHQ recorded Nov 5, 2026	11-50	44 contacts →
	Exact match “SubseaPartner is a leading diving contractor in the shallow-deep segment.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Petrolink AS	Exact match	NorwayHQ recorded Nov 5, 2026	51-200	44 contacts →
	Exact match “Petrolink operates platforms, subsea installations and floating production units offshore, oil and gas terminals onshore, refineries and process plants including power plants and…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Omega 365 Protek	Exact match	Haugesund, NorwayHQ recorded Nov 5, 2026	51-200	39 contacts →
	Exact match “Omega 365 Protek er et entrepriseselskap som leverer prosjektering og gjennomføring av både offshore og landbaserte industriprosjekter.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “offshore platform installation services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 148 offshore platform installation services based in Norway

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Offshore platform installation services based in Norway at a glance

As of Nov 5, 2026

29.9%Verified-email coverage

42.1Average contacts per company

11-50Median size (employees)

12.8%Largest-city concentration · Stavanger

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 148 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 platform installation services” 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 1,864 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 5, 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 platform installation services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many offshore platform installation services are there based in Norway?

RevenueBase identified 148 company matches for offshore platform installation services 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 platform installation services?

Stavanger leads with 19 company records, followed by Haugesund (9) and Oslo (7).

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 1,864 professional contacts with verified work emails tracked across these 148 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 5, 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 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.