Company lists · Data refreshed September 2026

Top 25 Oil and gas infrastructure contractors based in Norway

Name: Oil and gas infrastructure contractors based in Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 90 companies tracked

RevenueBase identified 90 oil and gas infrastructure contractors headquartered in Norway as of September 2026 and tracks 22,905 professional contacts across them, including 6,376 with verified work emails. Stavanger is the largest hub.

This list covers oil and gas infrastructure contractors 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

90Companies

22,905Contacts tracked

6,376Verified emails

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The 25 largest oil and gas infrastructure contractors based in Norway

Ranked by team size

Top 25 of 90 oil and gas infrastructure contractors 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 and gas infrastructure contractors: 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	Aker Solutions	Indirect evidence	Fornebu, NorwayHQ checked Sep 17, 2026	10001+	15,774 contacts →
	Indirect evidence “Aker Solutions is a global engineering and technology company known for delivering complex energy projects with trusted quality and predictable results.” Source: RevenueBase Database · checked Sep 17, 2026
2	AIBEL	Partial evidence	Stavanger, NorwayHQ checked Sep 17, 2026	1,001-5,000	3,879 contacts →
	Partial evidence “Aibel builds and maintains critical infrastructure for the energy sector and is one of the largest supplier companies in Norway.” Source: RevenueBase Database · checked Sep 17, 2026
3	Kaefer Norway	Indirect evidence	Stavanger, NorwayHQ checked Sep 17, 2026	1,001-5,000	663 contacts →
	Indirect evidence “KAEFER is a part of the KAEFER Group, one of Europe’s largest construction companies.” Source: RevenueBase Database · checked Sep 17, 2026
4	Linjebygg AS	Indirect evidence	Molde, NorwayHQ checked Sep 17, 2026	201-500	261 contacts →
	Indirect evidence “Linjebygg provides LIFE CYCLE EXTENSION.” Source: RevenueBase Database · checked Sep 17, 2026
5	Centerpoint	Partial evidence	Trollåsen, NorwayHQ checked Sep 17, 2026	51-200	171 contacts →
	Partial evidence “Centerpoint leverer høyt kvalifiserte konsulenter til store prosjekter innen Olje & Gass, Samferdsel & Infrastruktur og IT.” Source: RevenueBase Database · checked Sep 17, 2026
6	Norwegian Group	Indirect evidence	Volda, NorwayHQ checked Sep 17, 2026	201-500	155 contacts →
	Indirect evidence “Norwegian Group AS is a holding company that has a group with several companies under it.” Source: RevenueBase Database · checked Sep 17, 2026
7	NLI AS	Indirect evidence	Vear, NorwayHQ checked Sep 17, 2026	201-500	129 contacts →
	Indirect evidence “NLI gruppen er en komplett leverandør av engineering, fabrikasjon, installasjons- og vedlikeholdstjenester med nøkkelkompetanse på stålkonstruksjoner, rør, overflatebehandling og…” Source: RevenueBase Database · checked Sep 17, 2026
8	SFF Group	Indirect evidence	Sandnes, NorwayHQ checked Sep 17, 2026	51-200	124 contacts →
	Indirect evidence “SFF Group was established in 1991 and is today the largest privately owned piping stockist in Scandinavia.” Source: RevenueBase Database · checked Sep 17, 2026
9	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
10	Techouse AS	Strong evidence	Sandnes, NorwayHQ checked Sep 17, 2026	51-200	106 contacts →
	Strong 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
11	NYMO	Strong evidence	Grimstad, NorwayHQ checked Sep 17, 2026	201-500	105 contacts →
	Strong 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
12	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
13	Tekniskbureau	Partial evidence	Stavanger, NorwayHQ checked Sep 17, 2026	51-200	82 contacts →
	Partial evidence “A technical turnkey contractor and service company in the fields of pipes, ventilation, telecom, automation, energy consulting, maritime electrical and electrical.” Source: RevenueBase Database · checked Sep 17, 2026
14	Radøygruppen	Indirect evidence	Sæbøvågen, NorwayHQ checked Sep 17, 2026	51-200	53 contacts →
	Indirect evidence “At RadøyGruppen you find the services required to execute a project within the energy sector.” Source: RevenueBase Database · checked Sep 17, 2026
15	Aragon	Indirect evidence	Bergen, NorwayHQ checked Sep 17, 2026	51-200	51 contacts →
	Indirect evidence “Aragon is a leading engineering and EPC (Engineering, Procurement, and Construction) company headquartered in Bergen, Norway offering environmentally sound systems and solutions…” Source: RevenueBase Database · checked Sep 17, 2026
16	Petrolink AS	Strong evidence	NorwayHQ checked Sep 17, 2026	51-200	50 contacts →
	Strong 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
17	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
18	Tratec Teknikken AS	Indirect evidence	Farsund, NorwayHQ checked Sep 17, 2026	201-500	43 contacts →
	Indirect evidence “Tratec Teknikken AS er Tratec sitt største datterselskap som ble en del av Tratec-konsernet i 2010, og har avdelinger lokalisert i Farsund (hovedkontor), Lyngdal, Flekkefjord, og…” Source: RevenueBase Database · checked Sep 17, 2026
19	Tratec	Indirect evidence	Kristiansand, NorwayHQ checked Sep 17, 2026	201-500	42 contacts →
	Indirect evidence “Tratec is a supplier of technical solutions within electrical, automation, mechanical and piping to the offshore & marine, process industry and construction market.” Source: RevenueBase Database · checked Sep 17, 2026
20	Reinertsen AS	Partial evidence	Trondheim, NorwayHQ checked Sep 17, 2026	501-1,000	41 contacts →
	Partial 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
21	Vassbakk & Stol	Indirect evidence	Kopervik, NorwayHQ checked Sep 17, 2026	501-1,000	37 contacts →
	Indirect evidence “I Vassbakk & Stol bygger vi infrastruktur for fremtiden.” Source: RevenueBase Database · checked Sep 17, 2026
22	Kraftmontasje	Indirect evidence	Vestnes, NorwayHQ checked Sep 17, 2026	51-200	36 contacts →
	Indirect evidence “Kraftmontasje AS er en av de ledende entreprenørene innen tunnelinstallasjoner og energinett i Norge.” Source: RevenueBase Database · checked Sep 17, 2026
23	MDE Personell	Indirect evidence	Stavanger, NorwayHQ checked Sep 17, 2026	201-500	28 contacts →
	Indirect evidence “MDE Personell tilbyr dyktige fagfolk til olje- og gassindustrien, både onshore og offshore.” Source: RevenueBase Database · checked Sep 17, 2026
24	Tratec Halvorsen AS	Indirect evidence	Øye, NorwayHQ checked Sep 17, 2026	51-200	25 contacts →
	Indirect evidence “Tratec Halvorsen is a cost-effective manufacturer of technology for the onshore/ offshore industry.” Source: RevenueBase Database · checked Sep 17, 2026
25	Aarsleff Fundamentering & Boring	Indirect evidence	Ulefoss, NorwayHQ checked Sep 17, 2026	51-200	20 contacts →
	Indirect evidence “Gjennom våre konkurransedyktige tjenester bygger vi tillit og skaper verdier for kunden.” 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 and gas infrastructure contractors. 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 and gas infrastructure contractors.
Partial evidence: Its own public description names part of oil and gas infrastructure contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil and gas infrastructure contractors. 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 90 oil and gas infrastructure contractors based in Norway

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Oil and gas infrastructure contractors based in Norway at a glance

As of Sep 17, 2026

27.8%Verified-email coverage

254.5Average contacts per company

11-50Median size (employees)

21.1%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

10001+

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 90 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 and gas infrastructure contractors, 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 and gas infrastructure contractors”. 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 and gas infrastructure contractors), 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 and gas infrastructure contractors, 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, 6,376 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 and gas infrastructure contractors, 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 and gas infrastructure contractors are there based in Norway?

RevenueBase identified 90 oil and gas infrastructure contractors 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?

Aker Solutions, headquartered in Fornebu, tops this list with the largest team on record.

Which city has the most oil and gas infrastructure contractors?

Stavanger leads with 19 headquartered companies, followed by Sandnes (9) and Bergen (6).

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 6,376 verified decision-maker contacts tracked across these 90 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.