Company lists · Data refreshed September 2026

Top 25 Clean energy infrastructure providers based in Finland

RevenueBase identified 58 clean energy infrastructure providers headquartered in Finland as of September 2026 and tracks 1,901 professional contacts across them, including 934 with verified work emails. Helsinki is the largest hub.

This list covers clean energy infrastructure providers headquartered in Finland, 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
58Companies
1,901Contacts tracked
934Verified emails
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The 25 largest clean energy infrastructure providers based in Finland

Ranked by team size
Top 25 of 58 clean energy infrastructure providers based in Finland, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to clean energy infrastructure providers: 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
1Partial evidenceHelsinki, FinlandHQ checked Sep 16, 202610001+940 contacts →

Partial evidence

“Wärtsilä leads the transition towards a 100% renewable energy future.”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceTampere, FinlandHQ checked Sep 16, 2026201-500128 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidencePorvoo, FinlandHQ checked Sep 16, 202651-20049 contacts →

Indirect evidence

“Insplan on kumppanisi vihreän siirtymän toteuttamisessa.”

Source: RevenueBase Database · checked Sep 16, 2026
4Partial evidenceHelsinki, FinlandHQ checked Sep 16, 202651-20048 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceVaasa, FinlandHQ checked Sep 16, 202651-20037 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceHelsinki, FinlandHQ checked Sep 16, 202611-5036 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceVaasa, FinlandHQ checked Sep 16, 202611-5035 contacts →

Partial evidence

“We use our pioneering experience originating in wind power to help our customers seize the opportunities of the green transition in all fields of sustainable energy production.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidencePirkkala, FinlandHQ checked Sep 16, 202611-5034 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceHelsinki, FinlandHQ checked Sep 16, 202611-5033 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceLahti, FinlandHQ checked Sep 16, 202651-20025 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
11Partial evidenceTampere, FinlandHQ checked Sep 16, 20261-1022 contacts →

Partial evidence

“Enico offers wide-ranging production, manufacturing and project services in the field of renewable energy.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceHelsinki, FinlandHQ checked Sep 16, 202611-5020 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
13Strong evidenceOulu, FinlandHQ checked Sep 16, 202611-5019 contacts →

Strong evidence

“CFE Finland is an independent expert company in energy infrastructure.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceVantaa, FinlandHQ checked Sep 16, 202611-5019 contacts →

Indirect evidence

“Olemme kotimainen toimija ja kokenut aurinkoenergian asiantuntija.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceElimäki, FinlandHQ checked Sep 16, 202651-20016 contacts →

Indirect evidence

“Tuomme valoa ja lämpöä ihmisten elämään ja voimaa yritysten toimintaan.”

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceHelsinki, FinlandHQ checked Sep 16, 202611-5016 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceKarjaa, FinlandHQ checked Sep 16, 202651-20012 contacts →

Indirect evidence

“N3M Power Oy Ab is a modern service company that looks forward to quality, safety and sustainability.”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceTupos, FinlandHQ checked Sep 16, 202611-5012 contacts →

Indirect evidence

“Green dreams to productive reality We help cleantech companies in commercializing products.”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceHyvinkää, FinlandHQ checked Sep 16, 202611-5011 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceOulu, FinlandHQ checked Sep 16, 202611-5010 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
21Partial evidenceHelsinki, FinlandHQ checked Sep 16, 20261-1010 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidenceOulu, FinlandHQ checked Sep 16, 202611-5010 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect evidenceMuhos, FinlandHQ checked Sep 16, 202651-2009 contacts →

Indirect evidence

“Olemme yksi suurimmista Suomessa aurinkovoimaa rakentavista yrityksistä.”

Source: RevenueBase Database · checked Sep 16, 2026
24Strong evidenceHelsinki, FinlandHQ checked Sep 16, 20261-108 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 16, 2026
25Strong evidenceMikkeli, FinlandHQ checked Sep 16, 202611-508 contacts →

Strong evidence

“Valoe is a technology provider with a mission of clean solar energy.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 58 clean energy infrastructure providers based in Finland

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Clean energy infrastructure providers based in Finland at a glance

As of Sep 16, 2026
49.1%Verified-email coverage
32.8Average contacts per company
11-50Median size (employees)
24.1%Largest-city concentration · Helsinki
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
28
11-50
18
51-200
8
201-500
2
501-1,000
1
10001+
1

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 58 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 clean energy infrastructure providers, 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 Finland whose own description of what they do matches “clean energy infrastructure providers”. 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 clean energy infrastructure providers), 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 clean energy infrastructure providers, and records with no verified work email. Companies headquartered outside Finland 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, 934 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.

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 clean energy infrastructure providers, 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 clean energy infrastructure providers are there based in Finland?

RevenueBase identified 58 clean energy infrastructure providers headquartered in Finland 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?

Wärtsilä Energy, headquartered in Helsinki, tops this list with the largest team on record.

Which city has the most clean energy infrastructure providers?

Helsinki leads with 14 headquartered companies, followed by Oulu (5) and Vantaa (5).

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 934 verified decision-maker contacts tracked across these 58 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.