Company lists · Data refreshed September 2026

Top 25 Energy engineering consulting companies based in Norway

RevenueBase identified 189 energy engineering consulting companies headquartered in Norway as of September 2026 and tracks 20,367 professional contacts across them, including 6,362 with verified work emails. Oslo is the largest hub.

This list covers energy engineering consulting 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 16, 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 16, 2026 86% judged on-target in blind review
189Companies
20,367Contacts tracked
6,362Verified emails
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The 25 largest energy engineering consulting companies based in Norway

Ranked by team size
Top 25 of 189 energy engineering consulting companies based in Norway, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy engineering consulting 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceFornebu, NorwayHQ checked Sep 16, 202610001+15,774 contacts →

Strong 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 16, 2026
2Partial evidenceOslo, NorwayHQ checked Sep 16, 20261,001-5,0002,553 contacts →

Partial evidence

“Multiconsult Norway is one of the leading firms of architectures, consulting engineers and designers in Norway.”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceBremnes, NorwayHQ checked Sep 16, 2026201-500134 contacts →

Partial evidence

“LOS Elektro er en totalleverandør av elektrotekniske tjenester til kunder innen maritime næringer, energisektoren og bygg- og anleggsbransjen.”

Source: RevenueBase Database · checked Sep 16, 2026
4Strong evidenceLysaker, NorwayHQ checked Sep 16, 202651-200125 contacts →

Strong evidence

Consulting, design and engineering for offshore, coastal and civil construction.”

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceOslo, NorwayHQ checked Sep 16, 202651-20079 contacts →

Partial evidence

“Specialists in thermal energy.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceOslo, NorwayHQ checked Sep 16, 202651-20073 contacts →

Indirect evidence

“Future Technology - Part of Rejlers AS was founded in February 2011 and is located in Oslo, Norway.”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceStavanger, NorwayHQ checked Sep 16, 202611-5054 contacts →

Indirect evidence

“Unitech Power Systems is a leading consultancy and digital solutions provider within electrical power systems.”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceLysaker, NorwayHQ checked Sep 16, 202611-5052 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 16, 2026
9Partial evidenceTrondheim, NorwayHQ checked Sep 16, 202651-20051 contacts →

Partial evidence

“Entro is an energy- and environmental consultancy firm with two clients – our customers and the environment.”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceBergen, NorwayHQ checked Sep 16, 202651-20051 contacts →

Partial 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 16, 2026
11Indirect evidenceOslo, NorwayHQ checked Sep 16, 202651-20049 contacts →

Indirect evidence

“Itech AS er et rådgivende ingeniørfirma med over 30 års erfaring innen tekniske anlegg og bærekraftige løsninger for byggherrer og totalentreprenører.”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceOslo, NorwayHQ checked Sep 16, 202611-5042 contacts →

Partial evidence

“Ingenia tilbyr rådgivende tjenester innen energi- og klima-teknikk, VA, VVS, bygningsfysikk, brannteknikk og ITB.”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceRakkestad, NorwayHQ checked Sep 16, 202651-20039 contacts →

Indirect evidence

“Mjørud AS is a technology company located in of modern premises at Rudskogen in Rakkestad, Østfold.”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidenceLysaker, NorwayHQ checked Sep 16, 202651-20039 contacts →

Partial evidence

“EFLA Rådgivende ingeniører er en totalleverandør av tjenester innenfor samferdsel, energi, bygg og akustikk.”

Source: RevenueBase Database · checked Sep 16, 2026
15Partial evidenceStord, NorwayHQ checked Sep 16, 202651-20036 contacts →

Partial evidence

“Alltec: Pioneering Sustainable Energy Solutions with Innovation and Expertise At Alltec, we're committed to empowering the renewable energy transition through high-quality…”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceOslo, NorwayHQ checked Sep 16, 202611-5033 contacts →

Indirect evidence

“For over two decades, Ecohz has pioneered the world of renewable electricity.”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceVåle, NorwayHQ checked Sep 16, 202651-20032 contacts →

Indirect evidence

“ALT Installasjon - vårt valg av navn er ingen tilfeldighet.”

Source: RevenueBase Database · checked Sep 16, 2026
18Strong evidenceDale, NorwayHQ checked Sep 16, 202611-5030 contacts →

Strong evidence

“Hywer supplies a wide range of services in the renewable energy industry, ranging from- Engineering, Procurement and Construction (EPC-contracts) delivering complete hydropower…”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceNorwayHQ checked Sep 16, 202651-20030 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceKristiansand, NorwayHQ checked Sep 16, 202611-5028 contacts →

Indirect evidence

“Dagfin Skaar AS er et rådgivende ingeniørfirma lokalisert på Sørlandet.”

Source: RevenueBase Database · checked Sep 16, 2026
21Partial evidenceNordnes, NorwayHQ checked Sep 16, 202611-5026 contacts →

Partial evidence

“Bergen Offshore Service AS er et kompetansemiljø som hjelper våre kunder innenfor energibransjen med å realisere sine prosjekter.”

Source: RevenueBase Database · checked Sep 16, 2026
22Partial evidenceDrammen, NorwayHQ checked Sep 16, 202651-20024 contacts →

Partial evidence

“ECT AS er et av Norges største selvstendige rådgivende ingeniørfirma innenfor elektroteknikk, med fokus på energi, bygg, anlegg, industri og samferdsel.”

Source: RevenueBase Database · checked Sep 16, 2026
23Partial evidenceOslo, NorwayHQ checked Sep 16, 202651-20023 contacts →

Partial evidence

“Elkraft hjelper bedrifter med å redusere sine totale strømkostnader gjennom optimalisering av strøm, nettleie og energiforbruk.”

Source: RevenueBase Database · checked Sep 16, 2026
24Partial evidenceBergen, NorwayHQ checked Sep 16, 2026201-50023 contacts →

Partial evidence

“Multi-discipline engineering, staffing, and project execution company.”

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidenceLysaker, NorwayHQ checked Sep 16, 202611-5022 contacts →

Partial evidence

“EvoTek tilbyr rådgivingstjenester innenfor energirådgivning, byggherretjenester og tverrfaglig teknisk rådgivning.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 189 energy engineering consulting companies based in Norway

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Energy engineering consulting companies based in Norway at a glance

As of Sep 16, 2026
31.2%Verified-email coverage
107.8Average contacts per company
1-10Median size (employees)
19.0%Largest-city concentration · Oslo
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
114
11-50
48
51-200
19
201-500
4
501-1,000
1
1,001-5,000
1
5,001-10,000
1
10001+
1

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 189 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 energy engineering consulting 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 “energy engineering consulting 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 energy engineering consulting 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 energy engineering consulting 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, 6,362 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 16, 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.

Energy engineering consulting companies by metro

  • Energy engineering consulting companies in Oslo36

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 energy engineering consulting 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 energy engineering consulting companies are there based in Norway?

RevenueBase identified 189 energy engineering consulting 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?

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

Which city has the most energy engineering consulting companies?

Oslo leads with 36 headquartered companies, followed by Stavanger (12) and Bergen (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 6,362 verified decision-maker contacts tracked across these 189 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 16, 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.