Company lists · Data refreshed September 2026

Top 25 Oilfield service companies based in Norway

Name: Oilfield service companies based in Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 65 companies tracked

RevenueBase identified 65 oilfield service companies headquartered in Norway as of September 2026 and tracks 5,997 professional contacts across them, including 2,011 with verified work emails. Stavanger is the largest hub.

This list covers oilfield service 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 15, 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 15, 2026 86% judged on-target in blind review

65Companies

5,997Contacts tracked

2,011Verified emails

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The 25 largest oilfield service companies based in Norway

Ranked by team size

Top 25 of 65 oilfield service companies based in Norway, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to oilfield service 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	Archer	Indirect evidence	Sandnes, NorwayHQ checked Sep 15, 2026	5,001-10,000	2,373 contacts →
	Indirect evidence “Archer is a company providing drilling and well services to the global energy industry.” Source: RevenueBase Database · checked Sep 15, 2026
2	Mhwirth	Indirect evidence	Kristiansand, NorwayHQ checked Sep 15, 2026	1,001-5,000	560 contacts →
	Indirect evidence “October 2021.” Source: RevenueBase Database · checked Sep 15, 2026
3	Island Offshore	Indirect evidence	Ulsteinvik, NorwayHQ checked Sep 15, 2026	501-1,000	501 contacts →
	Indirect 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 15, 2026
4	Akofs Offshore	Indirect evidence	Oslo, NorwayHQ checked Sep 15, 2026	201-500	233 contacts →
	Indirect evidence “AKOFS Offshore is a global provider of vessel based subsea well construction and intervention services to the oil and gas industry.” Source: RevenueBase Database · checked Sep 15, 2026
5	TS Group	Indirect evidence	Porsgrunn, NorwayHQ checked Sep 15, 2026	201-500	215 contacts →
	Indirect evidence “TS Group is a multidiscipline industry- and oil service company with offices in Porsgrunn, Molde, Herøya Industripark and Bergen.” Source: RevenueBase Database · checked Sep 15, 2026
6	Norwegian Group	Indirect evidence	Volda, NorwayHQ checked Sep 15, 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 15, 2026
7	PSW Technology	Indirect evidence	Mongstad, NorwayHQ checked Sep 15, 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 15, 2026
8	Island Drilling Company AS	Indirect evidence	Sandsli, NorwayHQ checked Sep 15, 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 15, 2026
9	Techouse AS	Indirect evidence	Sandnes, NorwayHQ checked Sep 15, 2026	51-200	106 contacts →
	Indirect 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 15, 2026
10	TCO AS	Strong evidence	Indre Arna, NorwayHQ checked Sep 15, 2026	51-200	103 contacts →
	Strong 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 15, 2026
11	Optime, A Halliburton Service	Indirect evidence	Notodden, NorwayHQ checked Sep 15, 2026	51-200	98 contacts →
	Indirect evidence “Optime, A Halliburton Service is an innovative subsea oil and gas provider focusing on cost efficient solutions specifically towards products within the well access, well…” Source: RevenueBase Database · checked Sep 15, 2026
12	Mento AS	Indirect evidence	Tananger, NorwayHQ checked Sep 15, 2026	51-200	93 contacts →
	Indirect evidence “MENTO is a trading company with products and services for the oil and gas industry.” Source: RevenueBase Database · checked Sep 15, 2026
13	IKM Acona	Indirect evidence	Sandnes, NorwayHQ checked Sep 15, 2026	51-200	73 contacts →
	Indirect evidence “IKM Acona is a leading provider of services to the oil and gas industry covering the complete lifecycle of oil and gas projects.” Source: RevenueBase Database · checked Sep 15, 2026
14	Scan Tech	Indirect evidence	Stavanger, NorwayHQ checked Sep 15, 2026	51-200	72 contacts →
	Indirect evidence “Scan Tech develops, designs and manufactures machinery and equipment for well testing, maintenance and modifications, subsea, lifting and marine products.” Source: RevenueBase Database · checked Sep 15, 2026
15	IOT Group	Indirect evidence	Stavanger, NorwayHQ checked Sep 15, 2026	201-500	43 contacts →
	Indirect evidence “IOT Group is an international service organisation within the oil & gas industry, with worldwide locations in the most important oil & gas logistics hubs.” Source: RevenueBase Database · checked Sep 15, 2026
16	Wellpartner AS	Indirect evidence	Tananger, NorwayHQ checked Sep 15, 2026	51-200	23 contacts →
	Indirect evidence “WellPartner AS is a service company that delivers technical expertise and high quality equipment and services within subsea drilling, completion and intervention operations.” Source: RevenueBase Database · checked Sep 15, 2026
17	Independent OIL Tools AS	Indirect evidence	Stavanger, NorwayHQ checked Sep 15, 2026	11-50	17 contacts →
	Indirect evidence “WE ARE KNOWN FOR BETTER SERVICE & FASTER DELIVERY Independent Oil Tools AS started out back in 1992 in Norway.” Source: RevenueBase Database · checked Sep 15, 2026
18	Onsite Treatment Services	Indirect evidence	Tananger, NorwayHQ checked Sep 15, 2026	11-50	14 contacts →
	Indirect evidence “OTS offers a large and modern rental fleet, water treatment, slop treatment, tank cleaning, filtration, cuttings handling, vacuum systems, mud skips, well service pumps, pumping…” Source: RevenueBase Database · checked Sep 15, 2026
19	NOS Technology AS	Indirect evidence	Stavanger/sandnes, NorwayHQ checked Sep 15, 2026	11-50	14 contacts →
	Indirect evidence “NOS Technology AS is an engineering company based on employees with more than 20 years of experience from the Oil & Gas business.” Source: RevenueBase Database · checked Sep 15, 2026
20	Trade Tech AS	Indirect evidence	Stavanger, NorwayHQ checked Sep 15, 2026	11-50	13 contacts →
	Indirect evidence “Trade Tech was established in 2001 and is today a major supplier of drilling and well service equipment.” Source: RevenueBase Database · checked Sep 15, 2026
21	Toolserv AS	Indirect evidence	Stavanger, NorwayHQ checked Sep 15, 2026	11-50	13 contacts →
	Indirect evidence “Toolserv AS is divided in four segments: Sales, Engineering, Rental and Workshop.” Source: RevenueBase Database · checked Sep 15, 2026
22	Tech Trade AS	Indirect evidence	Stavanger, NorwayHQ checked Sep 15, 2026	11-50	12 contacts →
	Indirect evidence “Overview Tech Trade AS is a leading supplier of process equipment and systems to the oil and gas industries, world‐wide.” Source: RevenueBase Database · checked Sep 15, 2026
23	Prores AS	Indirect evidence	Trondheim, NorwayHQ checked Sep 15, 2026	11-50	11 contacts →
	Indirect evidence “Prores AS is a technology company based in Trondheim, Norway.” Source: RevenueBase Database · checked Sep 15, 2026
24	Ocean IMR	Indirect evidence	Klepp, NorwayHQ checked Sep 15, 2026	1-10	11 contacts →
	Indirect evidence “Ocean IMR is an oil service company providing inspection, maintenance and repair services on drilling components.” Source: RevenueBase Database · checked Sep 15, 2026
25	European MUD Company AS	Strong evidence	Sandnes, NorwayHQ checked Sep 15, 2026	11-50	10 contacts →
	Strong evidence “EMC is an oilfield drilling fluid company that provides specialty products and innovative solutions to ease drilling operations in the oil, gas and geothermal industry.” Source: RevenueBase Database · checked Sep 15, 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: oilfield service 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 oilfield service companies.
Partial evidence: Its own public description names part of oilfield service companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oilfield service 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 65 oilfield service companies based in Norway

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Oilfield service companies based in Norway at a glance

As of Sep 15, 2026

33.5%Verified-email coverage

92.3Average contacts per company

11-50Median size (employees)

32.3%Largest-city concentration · Stavanger

Sep 15, 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 65 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 oilfield service 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 “oilfield service 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 oilfield service 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 oilfield service 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, 2,011 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 15, 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 oilfield service 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 oilfield service companies are there based in Norway?

RevenueBase identified 65 oilfield service 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?

Archer, headquartered in Sandnes, tops this list with the largest team on record.

Which city has the most oilfield service companies?

Stavanger leads with 21 headquartered companies, followed by Sandnes (6) and Tananger (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 2,011 verified decision-maker contacts tracked across these 65 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 15, 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.