Company lists · Data refreshed November 2026

Top 25 Oil drilling contractors based in Norway

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

Compiled by the RevenueBase Data Team Data refreshed Nov 4, 2026 56 companies tracked

RevenueBase identified 56 company matches for oil drilling contractors associated with Norway as of November 2026 and tracks 7,587 professional contacts across them, including 2,875 with verified work emails. Stavanger is the largest hub.

This list covers company matches for oil drilling contractors 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 4, 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 4, 2026 How this list was built

56Companies

7,587Contacts tracked

2,875Verified emails

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The 25 largest oil drilling contractors based in Norway

Ranked by team size

Top 25 of 56 company matches for oil drilling contractors based in Norway, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 4, 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	Cosl Drilling Europe AS	Exact match	Sandnes, NorwayHQ recorded Nov 4, 2026	501-1,000	664 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
2	Island Offshore	Exact match	Ulsteinvik, NorwayHQ recorded Nov 4, 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 4, 2026 · View company records in RevenueBase
3	TS Group	Exact match	Porsgrunn, NorwayHQ recorded Nov 4, 2026	201-500	238 contacts →
	Exact match “TS Group is a multidiscipline industry- and oil service company with offices in Porsgrunn, Molde, Herøya Industripark and Bergen.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
4	Island Drilling Company AS	Exact match	Sandsli, NorwayHQ recorded Nov 4, 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 4, 2026 · View company records in RevenueBase
5	PSW Technology	Exact match	Mongstad, NorwayHQ recorded Nov 4, 2026	201-500	127 contacts →
	Exact match “PSW Technology offers a wide range of services and solutions to the global drilling industry.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
6	Techouse AS	Exact match	Sandnes, NorwayHQ recorded Nov 4, 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 4, 2026 · View company records in RevenueBase
7	Intelliserv	Exact match	Stavanger/sandnes, NorwayHQ recorded Nov 4, 2026	n/a	62 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
8	SUB SEA Services AS	Exact match	Stavanger, NorwayHQ recorded Nov 4, 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 4, 2026 · View company records in RevenueBase
9	Subseapartner AS	Exact match	Haugesund, NorwayHQ recorded Nov 4, 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 4, 2026 · View company records in RevenueBase
10	Petrolink AS	Exact match	NorwayHQ recorded Nov 4, 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 4, 2026 · View company records in RevenueBase
11	Wellpartner AS	Exact match	Tananger, NorwayHQ recorded Nov 4, 2026	51-200	24 contacts →
	Exact match “WellPartner AS is a service company that delivers technical expertise and high quality equipment and services within subsea drilling, completion and intervention operations.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
12	Independent OIL Tools AS	Exact match	Stavanger, NorwayHQ recorded Nov 4, 2026	11-50	21 contacts →
	Exact match “WE ARE KNOWN FOR BETTER SERVICE & FASTER DELIVERY Independent Oil Tools AS started out back in 1992 in Norway.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
13	Ross Offshore	Exact match	Stavanger, NorwayHQ recorded Nov 4, 2026	11-50	19 contacts →
	Exact match “We combine almost 30 years of heritage in North Sea operations with the global marine and engineering capabilities of AGR, ABL, OWC and Longitude across the Aqualis group – to…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
14	Aarsleff Fundamentering & Boring	Exact match	Ulefoss, NorwayHQ recorded Nov 4, 2026	51-200	18 contacts →
	Exact match “Gjennom våre konkurransedyktige tjenester bygger vi tillit og skaper verdier for kunden.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
15	Qmatec Drilling AS	Exact match	Åmot, NorwayHQ recorded Nov 4, 2026	11-50	15 contacts →
	Exact match “Qmatec Drilling AS is a mechanical company with the head office located in Vinje, Norway.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
16	Ocean IMR	Exact match	Klepp, NorwayHQ recorded Nov 4, 2026	1-10	14 contacts →
	Exact match “Ocean IMR is an oil service company providing inspection, maintenance and repair services on drilling components.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
17	Phoenix Rental AS	Exact match	Stavanger/sandnes, NorwayHQ recorded Nov 4, 2026	1-10	13 contacts →
	Exact match “Phoenix Rental AS offer rental of drilling tubulars and related accessories for the oil and gas industry.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
18	Tech Trade AS	Exact match	Stavanger, NorwayHQ recorded Nov 4, 2026	11-50	12 contacts →
	Exact match “Overview Tech Trade AS is a leading supplier of process equipment and systems to the oil and gas industries, world‐wide.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
19	Båsum Boring AS	Exact match	Krøderen, NorwayHQ recorded Nov 4, 2026	51-200	10 contacts →
	Exact match “Narve Båsum startet i 1952 med boring etter vann med linstøt boremaskin, som hadde en kapasitet på inntil seks meter pr dag.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
20	Toolserv AS	Exact match	Stavanger, NorwayHQ recorded Nov 4, 2026	11-50	9 contacts →
	Exact match “Toolserv AS is divided in four segments: Sales, Engineering, Rental and Workshop.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
21	RIG Partner AS	Exact match	Stavanger, NorwayHQ recorded Nov 4, 2026	1-10	9 contacts →
	Exact match “Rig Partner is an independent service company with highly qualified resources with extensive experience from rig operations and projects.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
22	Geostrom AS	Exact match	Våle, NorwayHQ recorded Nov 4, 2026	11-50	7 contacts →
	Exact match “Vi stiller sterkt med 8 borerigger, spesialutstyr for undersøkelser til sjøs og vårt eget geotekniske laboratorium.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
23	IKM Well Services AS	Exact match	Stavanger, NorwayHQ recorded Nov 4, 2026	1-10	6 contacts →
	Exact match “Tubular cutters” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
24	RIG Supply AS	Exact match	Stavanger, NorwayHQ recorded Nov 4, 2026	1-10	3 contacts →
	Exact match “Supplier of Drilling and Industral Equipment, Parts & Services.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
25	Saga Offshore Partners AS	Exact match	Stavanger, NorwayHQ recorded Nov 4, 2026	1-10	3 contacts →
	Exact match “Supplier of drilling, maintenance, engineering and equipment/product services on fixed installations and associated markets on the Norwegian Continental Shelf.” Recorded in the RevenueBase company graph · Nov 4, 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 “oil drilling contractors”. 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 56 oil drilling contractors based in Norway

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Oil drilling contractors based in Norway at a glance

As of Nov 4, 2026

37.9%Verified-email coverage

135.5Average contacts per company

11-50Median size (employees)

21.4%Largest-city concentration · Stavanger

Nov 4, 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 56 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 “oil drilling contractors” 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 2,875 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 4, 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 “oil drilling contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oil drilling contractors are there based in Norway?

RevenueBase identified 56 company matches for oil drilling contractors 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?

Cosl Drilling Europe AS tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most oil drilling contractors?

Stavanger leads with 12 company records, followed by Kristiansand (5) and Tananger (3).

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 2,875 professional contacts with verified work emails tracked across these 56 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 4, 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.