Company lists · Data refreshed September 2026

Top 25 Sustainable energy developers based in Finland

RevenueBase identified 67 company matches for sustainable energy developers associated with Finland as of September 2026 and tracks 890 professional contacts across them, including 465 with verified work emails. Helsinki is the largest hub.

This list covers company matches for sustainable energy developers associated with Finland, 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 September 18, 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 Sep 18, 2026 How this list was built
67Companies
890Contacts tracked
465Verified emails
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The 25 largest sustainable energy developers based in Finland

Ranked by team size
Top 25 of 67 company matches for sustainable energy developers based in Finland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 18, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchTampere, FinlandHQ recorded Sep 18, 2026201-500128 contacts →

Exact match

“Tampereen Energia on monipuolinen energiatalo, jossa työskentelee lähes 400 uusiutuvan energian ammattilaista.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
2Exact matchHelsinki, FinlandHQ recorded Sep 18, 202651-20068 contacts →

Exact match

“Ilmatar is a leading Independent Power Producer (IPP) and renewable energy developer in the Nordics.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
3Exact matchHelsinki, FinlandHQ recorded Sep 18, 202651-20048 contacts →

Exact match

“Korkia is a global investor and developer accelerating the transition to renewable energy.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
4Exact matchVaasa, FinlandHQ recorded Sep 18, 202651-20037 contacts →

Exact match

“NEPower delivers electrification solutions for the industrial, grid and renewable energy sectors.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
5Exact matchHelsinki, FinlandHQ recorded Sep 18, 202611-5036 contacts →

Exact match

“ABO Energy on menestyksekkäästi kehittänyt, rakentanut ja operoinut uusiutuvaa energiaa jo lähes 30 vuoden ajan ja on yksi Euroopan kokeneimmista alan toimijoista.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
6Exact matchPirkkala, FinlandHQ recorded Sep 18, 202611-5034 contacts →

Exact match

“Everything you need for utility-scale solar parks and commercial & industrial solar power plants in Finland: financial modelling, industry-leading engineering, construction and…”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
7Exact matchHelsinki, FinlandHQ recorded Sep 18, 202611-5033 contacts →

Exact match

“Energiequelle on kansainvälinen hankekehittäjä alanaan suunnitella, rakentaa ja hallinnoida tuuli, biokaasu- ja aurinkovoimaloita, sähköasemia sekä energian…”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
8Exact matchHelsinki, FinlandHQ recorded Sep 18, 202611-5029 contacts →

Exact match

“Myrsky Energia is a Finnish energy company that works consistently towards a more sustainable future.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
9Exact matchEspoo, FinlandHQ recorded Sep 18, 202611-5028 contacts →

Exact match

“At 1KOMMA5° Suomi (formerly Solar Age Oy), we believe in making it easy for people to access solar power solutions for their homes, businesses, and farms.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
10Exact matchLahti, FinlandHQ recorded Sep 18, 202651-20025 contacts →

Exact match

“Lemkem is the leading turnkey sustainable energy solutions provider in Finland.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
11Exact matchHelsinki, FinlandHQ recorded Sep 18, 202611-5020 contacts →

Exact match

“Forus is a novel finance and sales company that develops services to stop climate-change profitably.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
12Exact matchVantaa, FinlandHQ recorded Sep 18, 202611-5019 contacts →

Exact match

“Olemme kotimainen toimija ja kokenut aurinkoenergian asiantuntija.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
13Exact matchHelsinki, FinlandHQ recorded Sep 18, 202611-5017 contacts →

Exact match

“Established in 2011, Winda Energy Oy is a trusted Finnish wind farm developer with capabilities in project development, construction and operation.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
14Exact matchHelsinki, FinlandHQ recorded Sep 18, 202611-5016 contacts →

Exact match

“Ampner Oy – Power Engineering & DC Power Solutions for a Renewable Future Ampner is a Finnish technology company specialized in connecting renewable energy, energy storage systems…”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
15Exact matchEspoo, FinlandHQ recorded Sep 18, 202611-5015 contacts →

Exact match

“Wpd Suomi Oy (entinen wpd Finland Oy) on saksalaisomisteinen uusiutuvan energia-alan konserni, joka on erikoistunut tuuli- ja aurinkovoiman kehittämiseen.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
16Exact matchHelsinki, FinlandHQ recorded Sep 18, 202611-5011 contacts →

Exact match

“Eolus on yksi pohjoismaiden johtavista uusiutuvan energian hankekehittäjistä.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
17Exact matchOulu, FinlandHQ recorded Sep 18, 202611-5010 contacts →

Exact match

“Infra Builders is a Finnish construction company specializing in construction of wind farms and power grids.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
18Exact matchHelsinki, FinlandHQ recorded Sep 18, 20261-1010 contacts →

Exact match

“Wind power infrastructure and utility-scale solar photovoltaic (PV) power plants on a turnkey basis.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
19Exact matchOulu, FinlandHQ recorded Sep 18, 202611-5010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
20Exact matchOrimattila, FinlandHQ recorded Sep 18, 202611-5010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
21Exact matchMuhos, FinlandHQ recorded Sep 18, 202651-2009 contacts →

Exact match

“Olemme yksi suurimmista Suomessa aurinkovoimaa rakentavista yrityksistä.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
22Exact matchHelsinki, FinlandHQ recorded Sep 18, 20261-108 contacts →

Exact match

“A smooth solar energy plant development process for all parties involved We are a Finnish energy company developing clean and sustainable utility-scale solar power parks until the…”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
23Exact matchTampere, FinlandHQ recorded Sep 18, 20261-108 contacts →

Exact match

“People make the change.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
24Exact matchLappeenranta, FinlandHQ recorded Sep 18, 20261-107 contacts →

Exact match

“The demand for clean and sustainable energy is increasing, putting pressure on the energy industry to meet the demand.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
25Exact matchHelsinki, FinlandHQ recorded Sep 18, 20261-107 contacts →

Exact match

“Will & Must is a Helsinki-based developer of energy and infrastructure projects, founded in 2022.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase

Showing 25 of 67 sustainable energy developers based in Finland

See the full list, filter by size, metro and specialty, and access 465 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sustainable energy developers based in Finland at a glance

As of Sep 18, 2026
52.2%Verified-email coverage
13.3Average contacts per company
1-10Median size (employees)
28.4%Largest-city concentration · Helsinki
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
37
11-50
21
51-200
6
201-500
3

Email recency for this list is measured worldwide rather than for Finland, so it is reported there. Company counts and contact totals on this page are exact for Finland, over 67 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 Finland whose business descriptions match “sustainable energy developers” 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 465 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 September 18, 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 “sustainable energy developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sustainable energy developers are there based in Finland?

RevenueBase identified 67 company matches for sustainable energy developers associated with Finland as of September 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?

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

Which city has the most sustainable energy developers?

Helsinki leads with 19 company records, followed by Espoo (6) and Tampere (6).

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 465 professional contacts with verified work emails tracked across these 67 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 September 18, 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.