Company lists · Data refreshed September 2026

Top 25 Renewable energy utilities based in Finland

Name: Renewable energy utilities based in Finland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 53 companies tracked

RevenueBase identified 53 renewable energy utilities headquartered in Finland as of September 2026 and tracks 2,361 professional contacts across them, including 1,240 with verified work emails. Helsinki is the largest hub.

This list covers renewable energy utilities 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 17, 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 17, 2026 86% judged on-target in blind review

53Companies

2,361Contacts tracked

1,240Verified emails

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The 25 largest renewable energy utilities based in Finland

Ranked by team size

Top 25 of 53 renewable energy utilities based in Finland, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy utilities: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Wärtsilä Energy	Strong evidence	Helsinki, FinlandHQ checked Sep 17, 2026	10001+	940 contacts →
	Strong evidence “Wärtsilä leads the transition towards a 100% renewable energy future.” Source: RevenueBase Database · checked Sep 17, 2026
2	Elenia	Indirect evidence	Tampere, FinlandHQ checked Sep 17, 2026	201-500	229 contacts →
	Indirect evidence “Elenia palvelee 442 kotitalous- ja yritysasiakasta yli sadan kunnan alueella Hämeessä, Pirkanmaalla, Keski-Suomessa ja Pohjanmaalla.” Source: RevenueBase Database · checked Sep 17, 2026
3	Tampereen Energia	Partial evidence	Tampere, FinlandHQ checked Sep 17, 2026	201-500	128 contacts →
	Partial evidence “Tampereen Energia on monipuolinen energiatalo, jossa työskentelee lähes 400 uusiutuvan energian ammattilaista.” Source: RevenueBase Database · checked Sep 17, 2026
4	Lahti Energia OY	Partial evidence	Lahti, FinlandHQ checked Sep 17, 2026	201-500	112 contacts →
	Partial evidence “Olemme uudistuva energiatalo, jossa työskentelee yli 200 energian ja kiertotalouden ratkaisujen ammattilaista.” Source: RevenueBase Database · checked Sep 17, 2026
5	Savon Voima OYJ	Partial evidence	Toivala, FinlandHQ checked Sep 17, 2026	201-500	93 contacts →
	Partial evidence “Savon Voima on monipuolisia energiapalveluita tarjoava energiakonserni ja Itä-Suomen tunnetuin energia-alan brändi.” Source: RevenueBase Database · checked Sep 17, 2026
6	Vaasan Sähkö OY	Partial evidence	Vaasa, FinlandHQ checked Sep 17, 2026	51-200	88 contacts →
	Partial evidence “Meille Vaasan Sähköllä energia on muutakin kuin vain bisnestä.” Source: RevenueBase Database · checked Sep 17, 2026
7	Ilmatar	Strong evidence	Helsinki, FinlandHQ checked Sep 17, 2026	51-200	68 contacts →
	Strong evidence “Ilmatar is a leading Independent Power Producer (IPP) and renewable energy developer in the Nordics.” Source: RevenueBase Database · checked Sep 17, 2026
8	Keravan Energia	Partial evidence	Kerava, FinlandHQ checked Sep 17, 2026	51-200	51 contacts →
	Partial evidence “Keravan Energia -konsernin muodostavat Keravan Energia Oy, Sipoon Energia Oy ja Keravan Lämpövoima Oy.” Source: RevenueBase Database · checked Sep 17, 2026
9	OY Herrfors AB	Indirect evidence	Jakobstad, FinlandHQ checked Sep 17, 2026	51-200	49 contacts →
	Indirect evidence “Since the mounting of our first generator at the Herrfors powerplant in Kållby in 1907, we have maintained the dedication to our vision.” Source: RevenueBase Database · checked Sep 17, 2026
10	Korkia	Strong evidence	Helsinki, FinlandHQ checked Sep 17, 2026	51-200	48 contacts →
	Strong evidence “Korkia is a global investor and developer accelerating the transition to renewable energy.” Source: RevenueBase Database · checked Sep 17, 2026
11	ABO Energy Suomi OY	Partial evidence	Helsinki, FinlandHQ checked Sep 17, 2026	11-50	36 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 17, 2026
12	1komma5 Suomi	Indirect evidence	Espoo, FinlandHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
13	Ese-Energia OY Ese-Konserni	Partial evidence	Mikkeli, FinlandHQ checked Sep 17, 2026	51-200	27 contacts →
	Partial evidence “ESE-Energia Oy (ESE) tunnetaan uusiutuvan energian tuottajana.” Source: RevenueBase Database · checked Sep 17, 2026
14	Haminan Energia OY	Partial evidence	Hamina, FinlandHQ checked Sep 17, 2026	11-50	23 contacts →
	Partial evidence “Haminan Energia Oy on monipuolinen ja nykyaikainen energiayhtiö.” Source: RevenueBase Database · checked Sep 17, 2026
15	Hehku Energia	Partial evidence	Helsinki, FinlandHQ checked Sep 17, 2026	11-50	20 contacts →
	Partial evidence “Hehku Energia Oy – tuttavallisesti Hehku - on yksi Suomen nopeimmin kasvavista sähkönmyyntiyhtiöistä.” Source: RevenueBase Database · checked Sep 17, 2026
16	Forus OY	Indirect evidence	Helsinki, FinlandHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “Forus is a novel finance and sales company that develops services to stop climate-change profitably.” Source: RevenueBase Database · checked Sep 17, 2026
17	Ekoenergy Ecolabel	Strong evidence	Helsinki, FinlandHQ checked Sep 17, 2026	1-10	19 contacts →
	Strong evidence “EKOenergy is a global nonprofit ecolabel for energy (renewable electricity, renewable gas, heat and cold).” Source: RevenueBase Database · checked Sep 17, 2026
18	Kymenlaakson Sähkö	Indirect evidence	Elimäki, FinlandHQ checked Sep 17, 2026	51-200	16 contacts →
	Indirect evidence “Tuomme valoa ja lämpöä ihmisten elämään ja voimaa yritysten toimintaan.” Source: RevenueBase Database · checked Sep 17, 2026
19	Develo Energia	Indirect evidence	Helsinki, FinlandHQ checked Sep 17, 2026	1-10	10 contacts →
	Indirect evidence “Wind power infrastructure and utility-scale solar photovoltaic (PV) power plants on a turnkey basis.” Source: RevenueBase Database · checked Sep 17, 2026
20	VSB Uusiutuva Energia Suomi OY	Indirect evidence	Oulu, FinlandHQ checked Sep 17, 2026	11-50	10 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
21	Valoe OYJ	Partial evidence	Mikkeli, FinlandHQ checked Sep 17, 2026	11-50	8 contacts →
	Partial evidence “Valoe is a technology provider with a mission of clean solar energy.” Source: RevenueBase Database · checked Sep 17, 2026
22	Nordi OY	Partial evidence	Lappeenranta, FinlandHQ checked Sep 17, 2026	1-10	7 contacts →
	Partial evidence “The demand for clean and sustainable energy is increasing, putting pressure on the energy industry to meet the demand.” Source: RevenueBase Database · checked Sep 17, 2026
23	Outokummun Energia	Partial evidence	Outokumpu, FinlandHQ checked Sep 17, 2026	11-50	6 contacts →
	Partial evidence “Okun Energia on Pohjois-Karjalassa toimiva paikallinen energiayhtiö, vastaamme alueen kaukolämmön tuotannosta, sekä lämmön ja sähkön jakelusta Outokummun asiakkaillemme.” Source: RevenueBase Database · checked Sep 17, 2026
24	Windly	Indirect evidence	Helsinki, FinlandHQ checked Sep 17, 2026	1-10	5 contacts →
	Indirect evidence “We at WINDLY are your partner in achieving CO2 targets and improving electricity cost predictability.” Source: RevenueBase Database · checked Sep 17, 2026
25	Aalto Energia OY	Partial evidence	Helsinki, FinlandHQ checked Sep 17, 2026	1-10	4 contacts →
	Partial evidence “Aalto Energia Oy is a purely Finnish, privately owned energy company that began operations in the fall of 2023.” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: renewable energy utilities. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names renewable energy utilities.
Partial evidence: Its own public description names part of renewable energy utilities, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy utilities. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 53 renewable energy utilities based in Finland

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Renewable energy utilities based in Finland at a glance

As of Sep 17, 2026

52.5%Verified-email coverage

44.5Average contacts per company

11-50Median size (employees)

28.3%Largest-city concentration · Helsinki

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

10001+

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 53 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 renewable energy utilities, 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 “renewable energy utilities”. 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 renewable energy utilities), 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 renewable energy utilities, 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, 1,240 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 17, 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 renewable energy utilities, 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 renewable energy utilities are there based in Finland?

RevenueBase identified 53 renewable energy utilities 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 renewable energy utilities?

Helsinki leads with 15 headquartered companies, followed by Mikkeli (3) and Oulu (3).

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 1,240 verified decision-maker contacts tracked across these 53 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 17, 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.