Company lists · Data refreshed September 2026

Top 25 Renewable energy IT service providers based in Finland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 95 companies tracked

RevenueBase identified 95 company matches for renewable energy IT service providers associated with Finland as of September 2026 and tracks 1,828 professional contacts across them, including 954 with verified work emails. Helsinki is the largest hub.

This list covers company matches for renewable energy IT service providers 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

95Companies

1,828Contacts tracked

954Verified emails

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The 25 largest renewable energy IT service providers based in Finland

Ranked by team size

Top 25 of 95 company matches for renewable energy IT service providers 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	Attido	Exact match	Espoo, FinlandHQ recorded Sep 17, 2026	51-200	53 contacts →
	Exact match “Attido is an expertise-driven IT company, established in 2001.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Routa Digital	Exact match	Espoo, FinlandHQ recorded Sep 17, 2026	51-200	52 contacts →
	Exact match “Rooted in equality, trust and sustainability, we create clear and practical solutions that solve complex challenges - making technology meaningful, responsible, and accessible for…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Elisa Appelsiini	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	201-500	50 contacts →
	Exact match “Elisa, the leading provider of communications services, has acquired all of the issued shares of Elisa Appelsiini Finland Oy on 5th November 2010.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Enter Systemsolutions OY	Exact match	Turku, FinlandHQ recorded Sep 17, 2026	11-50	45 contacts →
	Exact match “Enter SystemSolutions Oy on vuonna 1997 perustettu korkeaan käytettävyyteen keskittynyt IT-ympäristöjen erikoisosaaja.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Teamit	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	51-200	44 contacts →
	Exact match “Experienced IT experts and sustainable software solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	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
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	Höyrytys OY	Exact match	Uusimaa, FinlandHQ recorded Sep 17, 2026	11-50	29 contacts →
	Exact match “Höyrytys Oy on kokonaisvaltainen energiapalvelujen tuottaja, joka toteuttaa asiakkailleen joustavia energiaratkaisuja lämmön, höyryn ja sähkön tuotantoon.” 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	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
12	Atoz OY	Exact match	Tampere, FinlandHQ recorded Sep 17, 2026	11-50	24 contacts →
	Exact match “AtoZ is a company on a mission to create a better digital future for like-minded sustainable companies.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	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
14	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
15	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
16	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
17	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
18	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
19	Ekoenergy Ecolabel	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	1-10	19 contacts →
	Exact match “EKOenergy is a global nonprofit ecolabel for energy (renewable electricity, renewable gas, heat and cold).” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	CT Industrial OY	Exact match	Haapavesi, FinlandHQ recorded Sep 17, 2026	11-50	18 contacts →
	Exact match “CTI is a company of experts which focus in a field of a complex and innovative technological systems integration for industrial customers.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Adesso Finland	Exact match	Helsinki, FinlandHQ recorded Sep 17, 2026	11-50	15 contacts →
	Exact match “At adesso Finland, we help businesses unlock their full potential with smart, tailored IT solutions.” 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	LLS Partners OY	Exact match	Sundsberg, FinlandHQ recorded Sep 17, 2026	11-50	12 contacts →
	Exact match “LLS Partners is a consultancy company based on the entrepreneur driven company model.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Project Business OY Finland	Exact match	Lappeenranta, FinlandHQ recorded Sep 17, 2026	1-10	10 contacts →
	Exact match “Project Business Oy Finland on vuonna 2004 perustettu asiantuntijayritys, joka on erikoistunut liiketoiminnan digitalisointiin ja siihen liittyviin konsultointipalveluihin.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Kotisol OY	Exact match	FinlandHQ recorded Sep 17, 2026	51-200	9 contacts →
	Exact match “Kotisol Oy toimittaa aurinkosähköjärjestelmät pientaloihin, maatiloille, yrityskiinteistöihin ja taloyhtiöille.” 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 IT service providers”. 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 95 renewable energy IT service providers based in Finland

See the full list, filter by size, metro and specialty, and access 954 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Renewable energy IT service providers based in Finland at a glance

As of Sep 17, 2026

52.2%Verified-email coverage

19.2Average contacts per company

1-10Median size (employees)

18.9%Largest-city concentration · Helsinki

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 95 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 IT service providers” 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 954 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 IT service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many renewable energy IT service providers are there based in Finland?

RevenueBase identified 95 company matches for renewable energy IT service providers 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 IT service providers?

Helsinki leads with 18 company records, followed by Espoo (8) and Oulu (8).

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 954 professional contacts with verified work emails tracked across these 95 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.