Company lists · Data refreshed September 2026

Top 25 Renewable energy integration companies based in Finland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 81 companies tracked

RevenueBase identified 81 company matches for renewable energy integration companies associated with Finland as of September 2026 and tracks 1,977 professional contacts across them, including 995 with verified work emails. Helsinki is the largest hub.

This list covers company matches for renewable energy integration companies 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 17, 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 17, 2026 How this list was built

81Companies

1,977Contacts tracked

995Verified emails

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The 25 largest renewable energy integration companies based in Finland

Ranked by team size

Top 25 of 81 company matches for renewable energy integration companies based in Finland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Wärtsilä Energy	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	10001+	940 contacts →
	Exact match “Wärtsilä leads the transition towards a 100% renewable energy future.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Ilmatar	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	51-200	68 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 17, 2026 · View company records in RevenueBase
3	Keravan Energia	Exact match	Kerava, FinlandHQ recorded Sep 17, 2026	51-200	51 contacts →
	Exact match “Keravan Energia -konsernin muodostavat Keravan Energia Oy, Sipoon Energia Oy ja Keravan Lämpövoima Oy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Insplan OY	Exact match	Porvoo, FinlandHQ recorded Sep 17, 2026	51-200	49 contacts →
	Exact match “Insplan on kumppanisi vihreän siirtymän toteuttamisessa.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Korkia	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	51-200	48 contacts →
	Exact match “Korkia is a global investor and developer accelerating the transition to renewable energy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Nepower	Exact match	Vaasa, FinlandHQ recorded Sep 17, 2026	51-200	37 contacts →
	Exact match “NEPower delivers electrification solutions for the industrial, grid and renewable energy sectors.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	ABO Energy Suomi OY	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	11-50	36 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 17, 2026 · View company records in RevenueBase
8	Etha OY	Exact match	Vaasa, FinlandHQ recorded Sep 17, 2026	11-50	35 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Intergrid	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	11-50	31 contacts →
	Exact match “Intergrid is a Helsinki-based technology company developing an Autopilot for industrial energy operations.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	1komma5 Suomi	Exact match	Espoo, FinlandHQ recorded Sep 17, 2026	11-50	28 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 17, 2026 · View company records in RevenueBase
11	Ese-Energia OY Ese-Konserni	Exact match	Mikkeli, FinlandHQ recorded Sep 17, 2026	51-200	27 contacts →
	Exact match “ESE-Energia Oy (ESE) tunnetaan uusiutuvan energian tuottajana.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Lemkem	Exact match	Lahti, FinlandHQ recorded Sep 17, 2026	51-200	25 contacts →
	Exact match “Lemkem is the leading turnkey sustainable energy solutions provider in Finland.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	EXAUM	Exact match	Hämeenlinna, FinlandHQ recorded Sep 17, 2026	11-50	25 contacts →
	Exact match “Accelerating green energy transition by balancing electric grids.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Enico OY	Exact match	Tampere, FinlandHQ recorded Sep 17, 2026	1-10	22 contacts →
	Exact match “Enico offers wide-ranging production, manufacturing and project services in the field of renewable energy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Arenso OY Arctic Energy Solutions	Exact match	Pori, FinlandHQ recorded Sep 17, 2026	51-200	21 contacts →
	Exact match “Arenso – Arctic Energy Solutions – provides cutting-edge expertise in sustainable and impactful renewable energy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Forus OY	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	11-50	20 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 17, 2026 · View company records in RevenueBase
17	Planora OY	Exact match	Oulu, FinlandHQ recorded Sep 17, 2026	11-50	20 contacts →
	Exact match “Planora Oy was founded in 1987 and currently employs over 30 full-time energy engineers and consultants, environmental engineers, energy system designers, software developers and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	CFE Finland OY	Exact match	Oulu, FinlandHQ recorded Sep 17, 2026	11-50	19 contacts →
	Exact match “CFE Finland is an independent expert company in energy infrastructure.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Oomi Solar	Exact match	Vantaa, FinlandHQ recorded Sep 17, 2026	11-50	19 contacts →
	Exact match “Olemme kotimainen toimija ja kokenut aurinkoenergian asiantuntija.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Enordic Evergreen	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	11-50	16 contacts →
	Exact match “Enordic Evergreen is a Nordic Independent Power Producer (IPP) committed to accelerating the clean energy transition.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Ampner OY	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	11-50	16 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 17, 2026 · View company records in RevenueBase
22	Tuulia Energy OY	Exact match	Pori, FinlandHQ recorded Sep 17, 2026	51-200	15 contacts →
	Exact match “Cleaner energy in capable hands.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Verkonrakentaja Wire OY	Exact match	Hyvinkää, FinlandHQ recorded Sep 17, 2026	11-50	11 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	TSF	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	1-10	10 contacts →
	Exact match “Thermal Storage Finland is a technology company - offering movable modular plug & play hybrid power plants for building heating with alternative funding options #esg…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Develo Energia	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	1-10	10 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 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “renewable energy integration companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 81 renewable energy integration companies based in Finland

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Renewable energy integration companies based in Finland at a glance

As of Sep 17, 2026

50.3%Verified-email coverage

24.4Average contacts per company

1-10Median size (employees)

29.6%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 81 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 “renewable energy integration companies” 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 995 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 17, 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 “renewable energy integration companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many renewable energy integration companies are there based in Finland?

RevenueBase identified 81 company matches for renewable energy integration companies 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?

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

Which city has the most renewable energy integration companies?

Helsinki leads with 24 company records, followed by Oulu (6) and Espoo (5).

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 995 professional contacts with verified work emails tracked across these 81 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 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 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.