Company lists · Data refreshed September 2026

Top 25 Energy consultancies based in Norway

RevenueBase identified 202 energy consultancies headquartered in Norway as of September 2026 and tracks 3,042 professional contacts across them, including 1,132 with verified work emails. Oslo is the largest hub.

This list covers energy consultancies 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
202Companies
3,042Contacts tracked
1,132Verified emails
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The 25 largest energy consultancies based in Norway

Ranked by team size
Top 25 of 202 energy consultancies 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 energy consultancies: 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
1Indirect evidenceOslo, NorwayHQ checked Sep 21, 20261,001-5,0001,150 contacts →

Indirect evidence

“GK er en ledende teknisk entreprenør og servicepartner.”

Source: RevenueBase Database · checked Sep 21, 2026
2Partial evidenceOslo, NorwayHQ checked Sep 21, 202651-20086 contacts →

Partial evidence

“At Hydro Rein, we're leading the race to decarbonize industry, delivering renewable energy solutions tailored to the demands of energy-intensive processes.”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceOslo, NorwayHQ checked Sep 21, 202651-20084 contacts →

Indirect evidence

“Oslo Economics er et av landets ledende fagmiljøer innen samfunnsøkonomisk rådgivning.”

Source: RevenueBase Database · checked Sep 21, 2026
4Partial evidenceOslo, NorwayHQ checked Sep 21, 202651-20079 contacts →

Partial evidence

“Specialists in thermal energy.”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceStavanger, NorwayHQ checked Sep 21, 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 21, 2026
6Partial evidenceTrondheim, NorwayHQ checked Sep 21, 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 21, 2026
7Indirect evidenceOslo, NorwayHQ checked Sep 21, 202611-5050 contacts →

Indirect evidence

“Rooted in decades of experience, and with a global team of experts, we provide objective and forward-looking analysis for all significant low carbon markets.”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceOslo, NorwayHQ checked Sep 21, 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 21, 2026
9Indirect evidenceOslo, NorwayHQ checked Sep 21, 202651-20047 contacts →

Indirect evidence

“THEMA is committed to working with our clients to create a more efficient and sustainable society.”

Source: RevenueBase Database · checked Sep 21, 2026
10Partial evidenceOslo, NorwayHQ checked Sep 21, 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 21, 2026
11Indirect evidenceÅlesund, NorwayHQ checked Sep 21, 202611-5040 contacts →

Indirect evidence

“Det hele startet med at konkurransen om strømkundene økte.”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceOslo, NorwayHQ checked Sep 21, 202651-20036 contacts →

Indirect evidence

“Smart Elektro ble etablert i 7.11.2002, og er et privateid elektroinstallasjonsselskap.”

Source: RevenueBase Database · checked Sep 21, 2026
13Partial evidenceStord, NorwayHQ checked Sep 21, 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 21, 2026
14Partial evidenceLierstranda, NorwayHQ checked Sep 21, 202611-5034 contacts →

Partial evidence

“NORPEC is a Norwegian supplier of services to the electrical energy sector with focus on electrical power system engineering and protection and control systems.”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceOslo, NorwayHQ checked Sep 21, 202611-5033 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceFrogner, NorwayHQ checked Sep 21, 202611-5032 contacts →

Indirect evidence

“Vista Analysis is a social science consultancy with its main emphasis on economic research, policy analysis and advice, and evaluations.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceVåle, NorwayHQ checked Sep 21, 202651-20032 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceOslo, NorwayHQ checked Sep 21, 2026n/a31 contacts →

Indirect evidence

“Fra nyttår ble Erichsen & Horgen en del av Multiconsult.”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceBergen, NorwayHQ checked Sep 21, 202611-5026 contacts →

Indirect evidence

“WHO are we?”

Source: RevenueBase Database · checked Sep 21, 2026
20Partial evidenceBergen, NorwayHQ checked Sep 21, 202651-20025 contacts →

Partial evidence

“Gjennom bransjekunnskap, nytenkning og engasjement skal vi tilby energieffektive systemer og tekniske løsninger som øker lønnsomheten og komforten i kommersiell bygningsdrift.””

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceOslo, NorwayHQ checked Sep 21, 202611-5025 contacts →

Indirect evidence

“Prognosesenteret AS is an independent consultancy company focusing on the construction, civil engineering, real estate and commerce business in the Nordic countries.”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceVinterbro, NorwayHQ checked Sep 21, 202611-5025 contacts →

Partial evidence

“Fair Solution er eksperter innenfor energi.”

Source: RevenueBase Database · checked Sep 21, 2026
23Partial evidenceDrammen, NorwayHQ checked Sep 21, 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 21, 2026
24Partial evidenceOslo, NorwayHQ checked Sep 21, 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 21, 2026
25Partial evidenceOslo, NorwayHQ checked Sep 21, 202651-20023 contacts →

Partial evidence

“Montel Analytics is Montel’s analytics and forecasting offering for European energy markets.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 202 energy consultancies based in Norway

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Energy consultancies based in Norway at a glance

As of Sep 21, 2026
37.2%Verified-email coverage
15.1Average contacts per company
1-10Median size (employees)
22.3%Largest-city concentration · Oslo
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
130
11-50
49
51-200
16
201-500
2
501-1,000
2
1,001-5,000
2
5,001-10,000
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 202 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 consultancies, 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 consultancies”. 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 consultancies), 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 consultancies, 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, 1,132 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.

Energy consultancies by metro

  • Energy consultancies in Oslo45

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 consultancies, 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 consultancies are there based in Norway?

RevenueBase identified 202 energy consultancies 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?

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

Which city has the most energy consultancies?

Oslo leads with 45 headquartered companies, followed by Stavanger (12) and Trondheim (10).

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 1,132 verified decision-maker contacts tracked across these 202 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.