Company lists · Data refreshed September 2026

Top 25 Oil field consulting firms based in Norway

Name: Oil field consulting firms based in Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 187 companies tracked

RevenueBase identified 187 oil field consulting firms headquartered in Norway as of September 2026 and tracks 7,725 professional contacts across them, including 2,199 with verified work emails. Stavanger is the largest hub.

This list covers oil field consulting firms 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 21, 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 21, 2026 86% judged on-target in blind review

187Companies

7,725Contacts tracked

2,199Verified emails

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The 25 largest oil field consulting firms based in Norway

Ranked by team size

Top 25 of 187 oil field consulting firms based in Norway, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to oil field consulting firms: 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 21, 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 21, 2026
2	AGR	Indirect evidence	Oslo, NorwayHQ checked Sep 21, 2026	501-1,000	768 contacts →
	Indirect evidence “AGR – an Aqualis company – is a multidisciplinary consultancy, specialising in drilling & wells, subsurface, marine and subsea solutions, resourcing, technical safety and software…” Source: RevenueBase Database · checked Sep 21, 2026
3	Island Offshore	Indirect evidence	Ulsteinvik, NorwayHQ checked Sep 21, 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 21, 2026
4	DNV - OIL & GAS	Partial evidence	Høvik, NorwayHQ checked Sep 21, 2026	1,001-5,000	332 contacts →
	Partial evidence “DNV’s Oil & Gas business and GL Noble Denton have become DNV GL - Oil & Gas.” Source: RevenueBase Database · checked Sep 21, 2026
5	TS Group	Partial evidence	Porsgrunn, NorwayHQ checked Sep 21, 2026	201-500	215 contacts →
	Partial 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 21, 2026
6	RTC Offshore AS	Indirect evidence	Skien, NorwayHQ checked Sep 21, 2026	201-500	164 contacts →
	Indirect evidence “RTC Offshore leverer høyt kvalifisert personell til olje- og gassindustrien, både for kortsiktige og langsiktige oppdrag.” Source: RevenueBase Database · checked Sep 21, 2026
7	Norwegian Group	Indirect evidence	Volda, NorwayHQ checked Sep 21, 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 21, 2026
8	PSW Technology	Indirect evidence	Mongstad, NorwayHQ checked Sep 21, 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 21, 2026
9	IK Group	Indirect evidence	Stavanger, NorwayHQ checked Sep 21, 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 21, 2026
10	Techouse AS	Partial evidence	Sandnes, NorwayHQ checked Sep 21, 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 21, 2026
11	NYMO	Partial evidence	Grimstad, NorwayHQ checked Sep 21, 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 21, 2026
12	TCO AS	Indirect evidence	Indre Arna, NorwayHQ checked Sep 21, 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 21, 2026
13	Subshore	Indirect evidence	Stord, NorwayHQ checked Sep 21, 2026	11-50	97 contacts →
	Indirect evidence “Providing Proud Competence - to the Norwegian subsea, offshore and onshore industries.” Source: RevenueBase Database · checked Sep 21, 2026
14	Mento AS	Partial evidence	Tananger, NorwayHQ checked Sep 21, 2026	51-200	93 contacts →
	Partial evidence “MENTO is a trading company with products and services for the oil and gas industry.” Source: RevenueBase Database · checked Sep 21, 2026
15	FØN Energy Services	Indirect evidence	Fornebu, NorwayHQ checked Sep 21, 2026	51-200	78 contacts →
	Indirect evidence “Føn Energy Services is an independent service provider to the offshore energy sector.” Source: RevenueBase Database · checked Sep 21, 2026
16	IKM Acona	Partial evidence	Sandnes, NorwayHQ checked Sep 21, 2026	51-200	73 contacts →
	Partial 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 21, 2026
17	Langset Group AS	Partial evidence	Molde, NorwayHQ checked Sep 21, 2026	501-1,000	69 contacts →
	Partial evidence “Langset is a portfolio of companies delivering project solutions and resources to the Oil & Gas, Energy, Maritime and Processing Sectors.” Source: RevenueBase Database · checked Sep 21, 2026
18	On & Offshore Services	Partial evidence	Kristiansand, NorwayHQ checked Sep 21, 2026	51-200	62 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
19	Inflowcontrol	Partial evidence	Porsgrunn, NorwayHQ checked Sep 21, 2026	51-200	55 contacts →
	Partial evidence “We are oil and gas engineers with decades of expertise in reservoir engineering and well productivity.” Source: RevenueBase Database · checked Sep 21, 2026
20	Semar AS	Partial evidence	Lysaker, NorwayHQ checked Sep 21, 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 21, 2026
21	Whitson	Partial evidence	Trondheim, NorwayHQ checked Sep 21, 2026	11-50	52 contacts →
	Partial evidence “whitson supports energy companies, oilfield service providers, investors, and government organizations with software, consulting, and training across PVT, well performance, gas…” Source: RevenueBase Database · checked Sep 21, 2026
22	SUB SEA Services AS	Indirect evidence	Stavanger, NorwayHQ checked Sep 21, 2026	51-200	52 contacts →
	Indirect evidence “Sub Sea Services is a solution-focused, flexible and collaboration oriented partner to the offshore drilling industry.” Source: RevenueBase Database · checked Sep 21, 2026
23	Necon AS	Strong evidence	Blomsterdalen, NorwayHQ checked Sep 21, 2026	201-500	52 contacts →
	Strong evidence “NECON AS is an engineering and consulting company that supply competence, products and solutions for the oil and gas industry, IT, the construction industry and Aqua industries.” Source: RevenueBase Database · checked Sep 21, 2026
24	Petrolink AS	Partial evidence	NorwayHQ checked Sep 21, 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 21, 2026
25	Well Expertise AS	Indirect evidence	Stavanger, NorwayHQ checked Sep 21, 2026	11-50	42 contacts →
	Indirect evidence “Well Expertise can tailor-make project specific deliverables for all disciplines for your next Exploration, Appraisal, Development or Decom Project.” Source: RevenueBase Database · checked Sep 21, 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 field consulting firms. 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 field consulting firms.
Partial evidence: Its own public description names part of oil field consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil field consulting firms. 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 187 oil field consulting firms based in Norway

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Oil field consulting firms based in Norway at a glance

As of Sep 21, 2026

28.5%Verified-email coverage

41.3Average contacts per company

11-50Median size (employees)

25.7%Largest-city concentration · Stavanger

Sep 21, 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 187 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 field consulting firms, 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 field consulting firms”. 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 field consulting firms), 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 field consulting firms, 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, 2,199 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 21, 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.

Oil field consulting firms by metro

Oil field consulting firms in Stavanger48

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 field consulting firms, 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 field consulting firms are there based in Norway?

RevenueBase identified 187 oil field consulting firms 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 oil field consulting firms?

Stavanger leads with 48 headquartered companies, followed by Oslo (24) and Sandnes (9).

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 2,199 verified decision-maker contacts tracked across these 187 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 21, 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.