Company lists · Data refreshed September 2026

Top 25 Solar project developers based in Finland

RevenueBase identified 48 solar project developers headquartered in Finland as of September 2026 and tracks 425 professional contacts across them, including 186 with verified work emails. Helsinki is the largest hub.

This list covers solar project developers 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 18, 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 18, 2026 86% judged on-target in blind review
48Companies
425Contacts tracked
186Verified emails
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The 25 largest solar project developers based in Finland

Ranked by team size
Top 25 of 48 solar project developers based in Finland, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to solar project developers: 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 18, 202651-20048 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 18, 2026
2Partial evidencePirkkala, FinlandHQ checked Sep 18, 202611-5034 contacts →

Partial 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 18, 2026
3Partial evidenceEspoo, FinlandHQ checked Sep 18, 202611-5028 contacts →

Partial 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 18, 2026
4Indirect evidenceHelsinki, FinlandHQ checked Sep 18, 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 18, 2026
5Indirect evidenceVantaa, FinlandHQ checked Sep 18, 202651-20019 contacts →

Indirect evidence

“Tarjoamme sähköisen talotekniikan palveluja: suunnittelua ja asennusta.”

Source: RevenueBase Database · checked Sep 18, 2026
6Indirect evidenceVantaa, FinlandHQ checked Sep 18, 202611-5019 contacts →

Indirect evidence

“Olemme kotimainen toimija ja kokenut aurinkoenergian asiantuntija.”

Source: RevenueBase Database · checked Sep 18, 2026
7Partial evidenceEspoo, FinlandHQ checked Sep 18, 202611-5017 contacts →

Partial evidence

“Solarvoima makes Solar Energy available for home owners, businesses, schools, non-profits and government organizations.”

Source: RevenueBase Database · checked Sep 18, 2026
8Partial evidenceHelsinki, FinlandHQ checked Sep 18, 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 18, 2026
9Indirect evidenceOrimattila, FinlandHQ checked Sep 18, 202611-5010 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 18, 2026
10Indirect evidenceMuhos, FinlandHQ checked Sep 18, 202651-2009 contacts →

Indirect evidence

“Olemme yksi suurimmista Suomessa aurinkovoimaa rakentavista yrityksistä.”

Source: RevenueBase Database · checked Sep 18, 2026
11Indirect evidenceFinlandHQ checked Sep 18, 202651-2009 contacts →

Indirect evidence

“Kotisol Oy toimittaa aurinkosähköjärjestelmät pientaloihin, maatiloille, yrityskiinteistöihin ja taloyhtiöille.”

Source: RevenueBase Database · checked Sep 18, 2026
12Partial evidenceHelsinki, FinlandHQ checked Sep 18, 20261-108 contacts →

Partial 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 18, 2026
13Partial evidenceMikkeli, FinlandHQ checked Sep 18, 202611-508 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 18, 2026
14Strong evidenceHelsinki, FinlandHQ checked Sep 18, 20261-107 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 18, 2026
15Partial evidenceTampere, FinlandHQ checked Sep 18, 202611-506 contacts →

Partial evidence

“Ralos Oy provides the most intelligent and efficient solar power plants for homes, industries and utilities.”

Source: RevenueBase Database · checked Sep 18, 2026
16Strong evidenceKorsholm, FinlandHQ checked Sep 18, 20261-105 contacts →

Strong evidence

Solar park developers and experts.”

Source: RevenueBase Database · checked Sep 18, 2026
17Indirect evidenceVantaa, FinlandHQ checked Sep 18, 20261-104 contacts →

Indirect evidence

“Ajattelimme sähköntuotannon uusiksi”

Source: RevenueBase Database · checked Sep 18, 2026
18Indirect evidenceSalo, FinlandHQ checked Sep 18, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 18, 2026
19Indirect evidenceHelsinki, FinlandHQ checked Sep 18, 20261-103 contacts →

Indirect evidence

“RENEWE - Uusiutuvan energian asiantuntijasi Suomen johtavat aurinkoenergia, lämpöpumppu, lataus- ja jäähdytysjärjestelmät sekä kokonaispalvelut yhdestä osoitteesta, suunnittelusta…”

Source: RevenueBase Database · checked Sep 18, 2026
20Indirect evidenceSastamala, FinlandHQ checked Sep 18, 20261-103 contacts →

Indirect evidence

“Cleaner Future Oy myy ja toimittaa avaimet käteen -periaatteella aurinkovoimaloita sekä yrityksille että yksityisille asiakkaille.”

Source: RevenueBase Database · checked Sep 18, 2026
21Indirect evidenceFinlandHQ checked Sep 18, 202611-503 contacts →

Indirect evidence

“Aurinkosähköteknologian kehittyminen on nostanut aurinkovoimalat varteenotettavaksi vaihtoehdoksi niin yrityksille kuin yksityisille.”

Source: RevenueBase Database · checked Sep 18, 2026
22Partial evidenceTurku, FinlandHQ checked Sep 18, 202611-503 contacts →

Partial evidence

“Sons of solar on aurinkoenergian edelläkävijä.”

Source: RevenueBase Database · checked Sep 18, 2026
23Strong evidenceHelsinki, FinlandHQ checked Sep 18, 20261-103 contacts →

Strong evidence

“Renetec is an independent developer of industrial-scale solar energy capacity.”

Source: RevenueBase Database · checked Sep 18, 2026
24Indirect evidenceHelsingfors, FinlandHQ checked Sep 18, 202611-502 contacts →

Indirect evidence

“Me olemme juuri oikea kumppani aurinkosähkön ammattilaiselle!”

Source: RevenueBase Database · checked Sep 18, 2026
25Indirect evidenceHyvinkää, FinlandHQ checked Sep 18, 20261-102 contacts →

Indirect evidence

“Aurinkopaneelijärjestelmien asennus Sähköautojen latauspisteet Aurinkosähköjärjestelmien päivitys ja huolto Suunnittelu ja konsultointi Tarkastukset sekä kartoitukset…”

Source: RevenueBase Database · checked Sep 18, 2026

Showing 25 of 48 solar project developers based in Finland

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Solar project developers based in Finland at a glance

As of Sep 18, 2026
43.8%Verified-email coverage
8.9Average contacts per company
1-10Median size (employees)
20.8%Largest-city concentration · Helsinki
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
29
11-50
14
51-200
4
201-500
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 48 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 solar project developers, 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 “solar project developers”. 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 solar project developers), 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 solar project developers, 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, 186 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 18, 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 solar project developers, 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 solar project developers are there based in Finland?

RevenueBase identified 48 solar project developers 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?

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

Which city has the most solar project developers?

Helsinki leads with 10 headquartered companies, followed by Vantaa (5) and Espoo (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 186 verified decision-maker contacts tracked across these 48 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 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 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.