Company lists · Data refreshed September 2026

Top 21 Renewable energy construction companies based in Finland

RevenueBase identified 35 renewable energy construction companies headquartered in Finland as of September 2026 and tracks 374 professional contacts across them, including 171 with verified work emails. Helsinki is the largest hub.

This list covers renewable energy construction companies 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
35Companies
374Contacts tracked
171Verified emails
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The 21 largest renewable energy construction companies based in Finland

Ranked by team size
Top 21 of 35 renewable energy construction companies 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 construction companies: 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 17, 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 17, 2026
2Partial evidencePirkkala, FinlandHQ checked Sep 17, 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 17, 2026
3Partial evidenceHelsinki, FinlandHQ checked Sep 17, 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 17, 2026
4Partial evidenceLahti, FinlandHQ checked Sep 17, 202651-20025 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
5Indirect evidenceHelsinki, FinlandHQ checked Sep 17, 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 17, 2026
6Indirect evidenceVantaa, FinlandHQ checked Sep 17, 202611-5019 contacts →

Indirect evidence

“Olemme kotimainen toimija ja kokenut aurinkoenergian asiantuntija.”

Source: RevenueBase Database · checked Sep 17, 2026
7Partial evidencePori, FinlandHQ checked Sep 17, 202651-20015 contacts →

Partial evidence

“Cleaner energy in capable hands.”

Source: RevenueBase Database · checked Sep 17, 2026
8Partial evidenceOulu, FinlandHQ checked Sep 17, 202611-5010 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
9Indirect evidenceHelsinki, FinlandHQ checked Sep 17, 20261-1010 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
10Indirect evidenceMuhos, FinlandHQ checked Sep 17, 202651-2009 contacts →

Indirect evidence

“Olemme yksi suurimmista Suomessa aurinkovoimaa rakentavista yrityksistä.”

Source: RevenueBase Database · checked Sep 17, 2026
11Partial evidenceHelsinki, FinlandHQ checked Sep 17, 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 17, 2026
12Partial evidenceLappeenranta, FinlandHQ checked Sep 17, 20261-107 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
13Partial evidenceHelsinki, FinlandHQ checked Sep 17, 20261-107 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
14Indirect evidenceTampere, FinlandHQ checked Sep 17, 202611-506 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
15Strong evidenceJyväskylä, FinlandHQ checked Sep 17, 20261-106 contacts →

Strong evidence

“WestWind build up renewable Energy Site Projects.”

Source: RevenueBase Database · checked Sep 17, 2026
16Indirect evidenceVantaa, FinlandHQ checked Sep 17, 20261-104 contacts →

Indirect evidence

“Ajattelimme sähköntuotannon uusiksi”

Source: RevenueBase Database · checked Sep 17, 2026
17Partial evidenceSipoo, FinlandHQ checked Sep 17, 20261-104 contacts →

Partial evidence

“Rasol Oy on täysin kotimainen uusiutuvan energian asiantuntija.”

Source: RevenueBase Database · checked Sep 17, 2026
18Strong evidenceVantaa, FinlandHQ checked Sep 17, 20261-103 contacts →

Strong evidence

“Wahlres Oy was founded in 2016 and aims to reduce the reliance of Finnish buildings on non-renewable energy sources.”

Source: RevenueBase Database · checked Sep 17, 2026
19Indirect evidenceSalo, FinlandHQ checked Sep 17, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
20Partial evidenceHelsinki, FinlandHQ checked Sep 17, 20261-103 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
21Partial evidenceLahti, FinlandHQ checked Sep 17, 202611-502 contacts →

Partial evidence

“Vihreä siirtymä, uusiutuva energia, hiilineutraali tulevaisuus?”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 21 of 35 renewable energy construction companies based in Finland

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Renewable energy construction companies based in Finland at a glance

As of Sep 17, 2026
45.7%Verified-email coverage
10.7Average contacts per company
1-10Median size (employees)
31.4%Largest-city concentration · Helsinki
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
11
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 35 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 construction companies, 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 construction companies”. 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 construction companies), 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 construction companies, 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, 171 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 construction companies, 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 construction companies are there based in Finland?

RevenueBase identified 35 renewable energy construction companies 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?

ABO Energy Suomi OY, headquartered in Helsinki, tops this list with the largest team on record.

Which city has the most renewable energy construction companies?

Helsinki leads with 11 headquartered companies, followed by Vantaa (5) and Turku (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 171 verified decision-maker contacts tracked across these 35 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.