Company lists · Data refreshed September 2026

Top 25 Oil rig fabrication companies based in Norway

Name: Oil rig fabrication 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 68 companies tracked

RevenueBase identified 68 oil rig fabrication companies headquartered in Norway as of September 2026 and tracks 3,185 professional contacts across them, including 1,038 with verified work emails. Stavanger is the largest hub.

This list covers oil rig fabrication 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

68Companies

3,185Contacts tracked

1,038Verified emails

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The 25 largest oil rig fabrication companies based in Norway

Ranked by team size

Top 25 of 68 oil rig fabrication 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 oil rig fabrication 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	Cosl Drilling Europe AS	Indirect evidence	Sandnes, NorwayHQ checked Sep 17, 2026	501-1,000	629 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
2	Mhwirth	Indirect evidence	Kristiansand, NorwayHQ checked Sep 17, 2026	1,001-5,000	560 contacts →
	Indirect evidence “October 2021.” Source: RevenueBase Database · checked Sep 17, 2026
3	PSW Technology	Indirect evidence	Mongstad, NorwayHQ checked Sep 17, 2026	201-500	133 contacts →
	Indirect evidence “PSW Technology offers a wide range of services and solutions to the global drilling industry.” Source: RevenueBase Database · checked Sep 17, 2026
4	IK Group	Indirect evidence	Stavanger, NorwayHQ checked Sep 17, 2026	51-200	123 contacts →
	Indirect evidence “IK SUBSEA - IK TOPSIDE - IK TRAX - IZOMAX - NORCLAMP Our clever use of proven technology makes your flowlines and pipelines run safely and profitably.” Source: RevenueBase Database · checked Sep 17, 2026
5	Island Drilling Company AS	Indirect evidence	Sandsli, NorwayHQ checked Sep 17, 2026	51-200	114 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
6	Techouse AS	Partial evidence	Sandnes, NorwayHQ checked Sep 17, 2026	51-200	106 contacts →
	Partial evidence “Techouse is a leader in the provision of offshore platform processing equipment and services to the international oil & gas industry.” Source: RevenueBase Database · checked Sep 17, 2026
7	NYMO	Partial evidence	Grimstad, NorwayHQ checked Sep 17, 2026	201-500	105 contacts →
	Partial evidence “Nymo is a full-service engineering, procurement and construction company within the oil & gas and process industry.” Source: RevenueBase Database · checked Sep 17, 2026
8	TCO AS	Indirect evidence	Indre Arna, NorwayHQ checked Sep 17, 2026	51-200	103 contacts →
	Indirect evidence “TCO is a Norwegian founded global oilfield service company, which specialises in the design, manufacture and installation of glass barrier plugs, chemical injection systems and…” Source: RevenueBase Database · checked Sep 17, 2026
9	Westcon Yards AS	Partial evidence	Vindafjord, NorwayHQ checked Sep 17, 2026	201-500	103 contacts →
	Partial evidence “Westcon Yards AS is a modern shipyard with a main focus on offshore service, shipbuilding, rig and ship repair.” Source: RevenueBase Database · checked Sep 17, 2026
10	Macro Offshore	Partial evidence	Sandnes, NorwayHQ checked Sep 17, 2026	51-200	91 contacts →
	Partial evidence “Macro Offshore, is a fully integrated owner and operator of accommodation vessels with a fleet of two harsh-environment deep-water accommodation jack-up rigs, Haven and Crossway…” Source: RevenueBase Database · checked Sep 17, 2026
11	Marine Aluminium AS	Partial evidence	Avaldsnes, NorwayHQ checked Sep 17, 2026	51-200	79 contacts →
	Partial evidence “Marine Aluminium AS (MA) is one of the world’s leading companies within engineering, design and fabrication of aluminium structures and products for the offshore and shipbuilding…” Source: RevenueBase Database · checked Sep 17, 2026
12	Moss Maritime	Indirect evidence	Lysaker, NorwayHQ checked Sep 17, 2026	51-200	65 contacts →
	Indirect 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
13	Semar AS	Partial evidence	Lysaker, NorwayHQ checked Sep 17, 2026	11-50	52 contacts →
	Partial evidence “Semar was founded in 1980 as an independent engineering consultant firm devoted primarily to the offshore oil and gas industry.” Source: RevenueBase Database · checked Sep 17, 2026
14	Petrolink AS	Partial evidence	NorwayHQ checked Sep 17, 2026	51-200	50 contacts →
	Partial evidence “Petrolink operates platforms, subsea installations and floating production units offshore, oil and gas terminals onshore, refineries and process plants including power plants and…” Source: RevenueBase Database · checked Sep 17, 2026
15	Subseadesign AS	Strong evidence	Lierbyen, NorwayHQ checked Sep 17, 2026	51-200	47 contacts →
	Strong evidence “SubseaDesign (SD) is an engineering, design and fabrication company providing equipment and services for the oil and gas industry.” Source: RevenueBase Database · checked Sep 17, 2026
16	Reinertsen AS	Indirect evidence	Trondheim, NorwayHQ checked Sep 17, 2026	501-1,000	41 contacts →
	Indirect evidence “REINERTSEN AS ble etablert i 1946 og er i dag et leverandørselskap innenfor olje & gass, samt ny energi.” Source: RevenueBase Database · checked Sep 17, 2026
17	Randaberg Industries	Strong evidence	Randaberg, NorwayHQ checked Sep 17, 2026	51-200	40 contacts →
	Strong evidence “Fabrication of complex industrial products with deep-water quay for ships and rigs.” Source: RevenueBase Database · checked Sep 17, 2026
18	Tomax AS	Indirect evidence	Stavanger, NorwayHQ checked Sep 17, 2026	11-50	36 contacts →
	Indirect evidence “Formed in 2005, Tomax is focused on developing technology for improving drilling efficiency with modern drilling systems.” Source: RevenueBase Database · checked Sep 17, 2026
19	Dwellop Group	Indirect evidence	Stavanger, NorwayHQ checked Sep 17, 2026	51-200	31 contacts →
	Indirect evidence “Dwellop Group is an independent Norwegian company delivering topside handling equipment for Well Intervention, WorkOver and P&A operations.” Source: RevenueBase Database · checked Sep 17, 2026
20	Fluid Control Service AS	Indirect evidence	Sola, NorwayHQ checked Sep 17, 2026	11-50	31 contacts →
	Indirect evidence “Fluid Control Service (FCS) is a leading provider of integrated fluid transfer solutions to the offshore and energy sectors.” Source: RevenueBase Database · checked Sep 17, 2026
21	Inocean	Partial evidence	Sentrum, NorwayHQ checked Sep 17, 2026	51-200	29 contacts →
	Partial 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
22	Envirex AS	Partial evidence	Bryne, NorwayHQ checked Sep 17, 2026	11-50	28 contacts →
	Partial evidence “Envirex’ engineering expertise delivers a wide range of products, systems and services for the subsea oil and gas industry.” Source: RevenueBase Database · checked Sep 17, 2026
23	Noble Installation AS	Indirect evidence	Rudskogen, NorwayHQ checked Sep 17, 2026	51-200	23 contacts →
	Indirect 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 17, 2026
24	Fabtech AS	Indirect evidence	Ågotnes, NorwayHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “A NEW SPARK IN STEEL WELDING Fabtech is a fabricator of pipe systems and steel structures.” Source: RevenueBase Database · checked Sep 17, 2026
25	Moreld	Indirect evidence	Stavanger, NorwayHQ checked Sep 17, 2026	1,001-5,000	17 contacts →
	Indirect evidence “Moreld is an industrial multi-disciplinary engineering group offering full-scope services across the offshore energy and marine industries including subsea installations.” 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: oil rig fabrication 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 oil rig fabrication companies.
Partial evidence: Its own public description names part of oil rig fabrication companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil rig fabrication 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 68 oil rig fabrication companies based in Norway

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Oil rig fabrication companies based in Norway at a glance

As of Sep 17, 2026

32.6%Verified-email coverage

46.8Average contacts per company

11-50Median size (employees)

20.6%Largest-city concentration · Stavanger

Sep 17, 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 68 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 oil rig fabrication 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 “oil rig fabrication 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 oil rig fabrication 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 oil rig fabrication 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, 1,038 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 oil rig fabrication 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 oil rig fabrication companies are there based in Norway?

RevenueBase identified 68 oil rig fabrication 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?

Cosl Drilling Europe AS, headquartered in Sandnes, tops this list with the largest team on record.

Which city has the most oil rig fabrication companies?

Stavanger leads with 14 headquartered companies, followed by Kristiansand (5) and Sandnes (5).

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 1,038 verified decision-maker contacts tracked across these 68 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.