Company lists · Data refreshed October 2026

Top 25 Clean energy engineering companies based in Norway

Name: Clean energy engineering companies based in Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 94 companies tracked

RevenueBase identified 94 company matches for clean energy engineering companies associated with Norway as of October 2026 and tracks 1,891 professional contacts across them, including 672 with verified work emails. Oslo is the largest hub.

This list covers company matches for clean energy engineering companies 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 October 9, 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 Oct 9, 2026 How this list was built

94Companies

1,891Contacts tracked

672Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest clean energy engineering companies based in Norway

Ranked by team size

Top 25 of 94 company matches for clean energy engineering companies based in Norway, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 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	Mainstream	Exact match	Fornebu, NorwayHQ recorded Oct 9, 2026	201-500	279 contacts →
	Exact match “Mainstream Renewable Power is a pure-play renewable energy company, with wind and solar assets across global markets, including Latin America, Africa, and Asia-Pacific.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2	OTOVO	Exact match	Oslo, NorwayHQ recorded Oct 9, 2026	201-500	274 contacts →
	Exact match “Otovo is an AI-Native home and business energy services company with a primary focus on solar power.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3	NTE	Exact match	Steinkjer, NorwayHQ recorded Oct 9, 2026	201-500	268 contacts →
	Exact match “NTE er et trøndersk eid fornybarselskap som har fokus på kundenes framtidige behov.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4	ANEO	Exact match	Trondheim, NorwayHQ recorded Oct 9, 2026	201-500	136 contacts →
	Exact match “Siden etableringen i 1950 har TrønderEnergi vært en pådriver i norsk kraftbransje.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5	Norsk Energi	Exact match	Oslo, NorwayHQ recorded Oct 9, 2026	51-200	82 contacts →
	Exact match “Specialists in thermal energy.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6	Future Technology	Exact match	Oslo, NorwayHQ recorded Oct 9, 2026	51-200	76 contacts →
	Exact match “Future Technology - Part of Rejlers AS was founded in February 2011 and is located in Oslo, Norway.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7	Hydro Rein	Exact match	Oslo, NorwayHQ recorded Oct 9, 2026	51-200	71 contacts →
	Exact match “At Hydro Rein, we're leading the race to decarbonize industry, delivering renewable energy solutions tailored to the demands of energy-intensive processes.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8	Unitech Power Systems AS	Exact match	Stavanger, NorwayHQ recorded Oct 9, 2026	11-50	55 contacts →
	Exact match “Unitech Power Systems is a leading consultancy and digital solutions provider within electrical power systems.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9	ALT Installasjon AS	Exact match	Våle, NorwayHQ recorded Oct 9, 2026	51-200	34 contacts →
	Exact match “ALT Installasjon - vårt valg av navn er ingen tilfeldighet.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10	Alltec	Exact match	Stord, NorwayHQ recorded Oct 9, 2026	51-200	33 contacts →
	Exact match “Alltec: Pioneering Sustainable Energy Solutions with Innovation and Expertise At Alltec, we're committed to empowering the renewable energy transition through high-quality…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11	ECOHZ	Exact match	Oslo, NorwayHQ recorded Oct 9, 2026	11-50	32 contacts →
	Exact match “For over two decades, Ecohz has pioneered the world of renewable electricity.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12	Inocean	Exact match	Sentrum, NorwayHQ recorded Oct 9, 2026	51-200	32 contacts →
	Exact match “Inocean delivers design, engineering- and project management services, and cover Oil & Gas as well as the Renewable Industry.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13	HYWER	Exact match	Dale, NorwayHQ recorded Oct 9, 2026	11-50	27 contacts →
	Exact match “Hywer supplies a wide range of services in the renewable energy industry, ranging from- Engineering, Procurement and Construction (EPC-contracts) delivering complete hydropower…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14	Solcellekraft AS	Exact match	Straume, NorwayHQ recorded Oct 9, 2026	11-50	27 contacts →
	Exact match “Solcellekraft er en totalleverandør av komplette solcelleanlegg.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15	Carbon Circle AS	Exact match	Oslo, NorwayHQ recorded Oct 9, 2026	11-50	21 contacts →
	Exact match “Carbon Circle is a project development and EPC house addressing the increasing demand for carbon reduction and energy transition solutions globally.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16	Evotek AS	Exact match	Lysaker, NorwayHQ recorded Oct 9, 2026	11-50	21 contacts →
	Exact match “EvoTek tilbyr rådgivingstjenester innenfor energirådgivning, byggherretjenester og tverrfaglig teknisk rådgivning.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17	Sustevo	Exact match	Oslo, NorwayHQ recorded Oct 9, 2026	11-50	20 contacts →
	Exact match “Accelerating Sustainable Evolution – Join Us on Our Journey!” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18	Bluetec AS	Exact match	Tønsberg, NorwayHQ recorded Oct 9, 2026	11-50	17 contacts →
	Exact match “Vi leverer hele energisystemet!” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19	Captiva Asset Management	Exact match	Frogner, NorwayHQ recorded Oct 9, 2026	11-50	17 contacts →
	Exact match “Captiva maximizes renewable asset performance with insight.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20	Riksheim	Exact match	Ålesund, NorwayHQ recorded Oct 9, 2026	11-50	13 contacts →
	Exact match “Riksheim er en rådgivningsbedrift som tilbyr ingeniørtjenester innenfor miljø og energiløsninger.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21	Differ Community Power	Exact match	Oslo, NorwayHQ recorded Oct 9, 2026	11-50	13 contacts →
	Exact match “DCP designs, installs and operates distributed renewable energy systems for critical community infrastructure including healthcare, education and humanitarian aid.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22	Isola Solar AS	Exact match	Larvik, NorwayHQ recorded Oct 9, 2026	11-50	11 contacts →
	Exact match “Isola Solar specializes in integrated solar panels for roofs and walls as well as a comprehensive solar cell system for flat roofs, and is Isola's investment in solar energy.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23	Norhybrid Renewables AS	Exact match	Porsgrunn, NorwayHQ recorded Oct 9, 2026	1-10	10 contacts →
	Exact match “Norhybrid is a Norwegian company that designs and manufactures smart wind turbines with a low visual and environmental footprint and integrates them with solar panels.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24	Energy AS	Exact match	Stavanger, NorwayHQ recorded Oct 9, 2026	11-50	10 contacts →
	Exact match “Engineering with a focus on the green path.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25	Ocean Geoloop AS	Exact match	Verdal, NorwayHQ recorded Oct 9, 2026	1-10	10 contacts →
	Exact match “Ocean GeoLoop develops and industrializes innovative green technologies with global scaling potential.” Recorded in the RevenueBase company graph · Oct 9, 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 “clean energy engineering companies”. 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 94 clean energy engineering companies based in Norway

See the full list, filter by size, metro and specialty, and access 672 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Clean energy engineering companies based in Norway at a glance

As of Oct 9, 2026

35.5%Verified-email coverage

20.1Average contacts per company

11-50Median size (employees)

20.2%Largest-city concentration · Oslo

Oct 9, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 94 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 “clean energy engineering companies” 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 672 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 October 9, 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 “clean energy engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many clean energy engineering companies are there based in Norway?

RevenueBase identified 94 company matches for clean energy engineering companies associated with Norway as of October 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?

Mainstream tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most clean energy engineering companies?

Oslo leads with 19 company records, followed by Stavanger (6) and Trondheim (5).

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 672 professional contacts with verified work emails tracked across these 94 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 October 9, 2026.

Ready to reach these companies? Verified emails and direct dials for all 94 clean energy engineering companies based in Norway. Start with a free account, no credit card.

Download this list →

Related lists

Clean energy engineering companies by geography

Browse the directory

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.