Company lists · Data refreshed September 2026

Top 25 Oil and gas consulting firms based in Norway

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 148 companies tracked

RevenueBase identified 148 oil and gas consulting firms headquartered in Norway as of September 2026 and tracks 4,008 professional contacts across them, including 952 with verified work emails and 242 with mobile numbers. Stavanger is the largest hub.

This list covers oil and gas 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

148Companies

4,008Contacts tracked

952Verified emails

242Mobile numbers

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The 25 largest oil and gas consulting firms based in Norway

Ranked by team size

Top 25 of 148 oil and gas consulting firms based in Norway, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names oil and gas consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	AGRIndirect evidence	Oslo, NorwayHQ checked Sep 5, 2026	501-1,000	768
	“AGR – an Aqualis company – is a multidisciplinary consultancy, specialising in drilling & wells, subsurface, marine and subsea solutions, resourcing, technical safety and software…” Source: company website · checked Sep 5, 2026
2	DNV - OIL & GASStrong evidence	Høvik, NorwayHQ checked Sep 5, 2026	1,001-5,000	332
	“DNV’s Oil & Gas business and GL Noble Denton have become DNV GL - Oil & Gas.” Source: company website · checked Sep 5, 2026
3	TS GroupPartial evidence	Porsgrunn, NorwayHQ checked Sep 5, 2026	201-500	215
	“TS Group is a multidiscipline industry- and oil service company with offices in Porsgrunn, Molde, Herøya Industripark and Bergen.” Source: company website · checked Sep 5, 2026
4	CenterpointPartial evidence	Trollåsen, NorwayHQ checked Sep 5, 2026	51-200	171
	“Centerpoint leverer høyt kvalifiserte konsulenter til store prosjekter innen Olje & Gass, Samferdsel & Infrastruktur og IT.” Source: company website · checked Sep 5, 2026
5	RTC Offshore ASIndirect evidence	Skien, NorwayHQ checked Sep 5, 2026	201-500	164
	“RTC Offshore leverer høyt kvalifisert personell til olje- og gassindustrien, både for kortsiktige og langsiktige oppdrag.” Source: company website · checked Sep 5, 2026
6	Norwegian GroupIndirect evidence	Volda, NorwayHQ checked Sep 5, 2026	201-500	155
	“Norwegian Group AS is a holding company that has a group with several companies under it.” Source: company website · checked Sep 5, 2026
7	IK GroupIndirect evidence	Stavanger, NorwayHQ checked Sep 5, 2026	51-200	123
	“IK SUBSEA - IK TOPSIDE - IK TRAX - IZOMAX - NORCLAMP Our clever use of proven technology makes your flowlines and pipelines run safely and profitably.” Source: company website · checked Sep 5, 2026
8	Techouse ASStrong evidence	Sandnes, NorwayHQ checked Sep 5, 2026	51-200	106
	“Techouse is a leader in the provision of offshore platform processing equipment and services to the international oil & gas industry.” Source: company website · checked Sep 5, 2026
9	IKM AconaStrong evidence	Sandnes, NorwayHQ checked Sep 5, 2026	51-200	73
	“IKM Acona is a leading provider of services to the oil and gas industry covering the complete lifecycle of oil and gas projects.” Source: company website · checked Sep 5, 2026
10	On & Offshore ServicesStrong evidence	Kristiansand, NorwayHQ checked Sep 5, 2026	51-200	62
	“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: company website · checked Sep 5, 2026
11	InflowcontrolStrong evidence	Porsgrunn, NorwayHQ checked Sep 5, 2026	51-200	55
	“We are oil and gas engineers with decades of expertise in reservoir engineering and well productivity.” Source: company website · checked Sep 5, 2026
12	Semar ASStrong evidence	Lysaker, NorwayHQ checked Sep 5, 2026	11-50	52
	“Semar was founded in 1980 as an independent engineering consultant firm devoted primarily to the offshore oil and gas industry.” Source: company website · checked Sep 5, 2026
13	WhitsonStrong evidence	Trondheim, NorwayHQ checked Sep 5, 2026	11-50	52
	“whitson supports energy companies, oilfield service providers, investors, and government organizations with software, consulting, and training across PVT, well performance, gas…” Source: company website · checked Sep 5, 2026
14	Necon ASStrong evidence	Blomsterdalen, NorwayHQ checked Sep 5, 2026	201-500	52
	“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: company website · checked Sep 5, 2026
15	Petrolink ASStrong evidence	NorwayHQ checked Sep 5, 2026	51-200	50
	“Petrolink operates platforms, subsea installations and floating production units offshore, oil and gas terminals onshore, refineries and process plants including power plants and…” Source: company website · checked Sep 5, 2026
16	AMBIOIndirect evidence	Stavanger, NorwayHQ checked Sep 5, 2026	11-50	29
	“AMBIO Rekruttering AS utfører rekruttering av toppledere, linjeledere, spesialister og nøkkelmedarbeidere.” Source: company website · checked Sep 5, 2026
17	Applied Petroleum Technology APTIndirect evidence	Oslo, NorwayHQ checked Sep 5, 2026	11-50	28
	“APT offers an extensive and integrated experience in consultancy services for both the Norwegian Continental Shelf and abroad.” Source: company website · checked Sep 5, 2026
18	MDE PersonellIndirect evidence	Stavanger, NorwayHQ checked Sep 5, 2026	201-500	28
	“MDE Personell tilbyr dyktige fagfolk til olje- og gassindustrien, både onshore og offshore.” Source: company website · checked Sep 5, 2026
19	Wellpartner ASIndirect evidence	Tananger, NorwayHQ checked Sep 5, 2026	51-200	23
	“WellPartner AS is a service company that delivers technical expertise and high quality equipment and services within subsea drilling, completion and intervention operations.” Source: company website · checked Sep 5, 2026
20	Sebastian ASIndirect evidence	Ulsteinvik, NorwayHQ checked Sep 5, 2026	11-50	20
	“About Sebastian AS Founded in 1994, Sebastian AS is an independent consultancy specializing in the maritime and offshore sectors.” Source: company website · checked Sep 5, 2026
21	PathwaysIndirect evidence	Bergen, NorwayHQ checked Sep 5, 2026	11-50	19
	“Empowering the maritime industry towards excellence.” Source: company website · checked Sep 5, 2026
22	Kasomo Energy ASIndirect evidence	Trondheim, NorwayHQ checked Sep 5, 2026	11-50	18
	“Welcome to Kasomo Energy, your one-stop-shop for technical service solutions.” Source: company website · checked Sep 5, 2026
23	Boatlabs ASIndirect evidence	Ålesund, NorwayHQ checked Sep 5, 2026	11-50	16
	“Boatlabs is an independent consultancy company with high competence.” Source: company website · checked Sep 5, 2026
24	MP Energy AdvisoryIndirect evidence	Stavanger, NorwayHQ checked Sep 5, 2026	11-50	16
	“Founded in 1998, MP Energy Advisory is an independent advisory firm based in Stavanger, Norway.” Source: company website · checked Sep 5, 2026
25	ALLUMIndirect evidence	Sandefjord, NorwayHQ checked Sep 5, 2026	11-50	16
	“Allum Engineering: Engineering Solutions to Process, Marine and Offshore Industries Allum Technology: Technology Development and delivery of CFU and treatment plants for produced…” Source: company website · checked Sep 5, 2026

Showing 25 of 148 oil and gas consulting firms based in Norway

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Oil and gas consulting firms based in Norway at a glance

As of Sep 5, 2026

1-10Median size (employees)

StavangerLargest hub · 35 HQs

242Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Verified emails by last verification

0–30

879

31–60

61–90

90–180

180+

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 consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among oil and gas 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 an evidence 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, 952 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 5, 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 and gas consulting firms by metro

Oil and gas consulting firms in Stavanger35
Oil and gas consulting firms in Oslo25

Frequently asked

How many oil and gas consulting firms are there based in Norway?

RevenueBase identified 148 oil and gas 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?

AGR, headquartered in Oslo, tops this list with the largest team on record.

Which city has the most oil and gas consulting firms?

Stavanger leads with 35 headquartered companies, followed by Oslo (25) and Bergen (7).

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 952 verified decision-maker contacts tracked across these 148 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 5, 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.