Company lists · Data refreshed October 2026

Top 25 Commercial energy efficiency startups based in Finland

Name: Commercial energy efficiency startups based in Finland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 10, 2026 40 companies tracked

RevenueBase identified 40 company matches for commercial energy efficiency startups associated with Finland as of October 2026 and tracks 413 professional contacts across them, including 224 with verified work emails. Espoo is the largest hub.

This list covers company matches for commercial energy efficiency startups 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 October 10, 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 Oct 10, 2026 How this list was built

40Companies

413Contacts tracked

224Verified emails

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The 25 largest commercial energy efficiency startups based in Finland

Ranked by team size

Top 25 of 40 company matches for commercial energy efficiency startups based in Finland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 10, 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	Ouman OY	Exact match	Rauma, FinlandHQ recorded Oct 10, 2026	201-500	95 contacts →
	Exact match “Ouman on erikoistunut energiavirtojen hallintaan ja automaatioon kiinteistöissä.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
2	ENERZ	Exact match	Espoo, FinlandHQ recorded Oct 10, 2026	51-200	42 contacts →
	Exact match “Our service Modern technical building solutions improve the cost and energy efficiency of new and renovated buildings.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
3	Leasegreen	Exact match	Espoo, FinlandHQ recorded Oct 10, 2026	11-50	32 contacts →
	Exact match “LeaseGreen on suurten kiinteistöjen energiatalouden parantaja ja ilmastotekojen moottori.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
4	Vatajankoski	Exact match	Kankaanpää, FinlandHQ recorded Oct 10, 2026	51-200	18 contacts →
	Exact match “Vatajankoski on uuden energian yhtiö, joka säästää energiaa – ja lopun se tuottaa kotimaisilla ja uusiutuvilla polttoaineilla.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
5	Danfoss Leanheat Building	Exact match	FinlandHQ recorded Oct 10, 2026	51-200	18 contacts →
	Exact match “Leanheat Building is the smartest solution for energy efficient building management.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
6	Rau-Service OY	Exact match	Alavieska, FinlandHQ recorded Oct 10, 2026	11-50	15 contacts →
	Exact match “RAU-Service Oy on kokenut rakennusautomaatiotalo Pohjanmaalla.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
7	Finess Energy OY	Exact match	Turku, FinlandHQ recorded Oct 10, 2026	11-50	15 contacts →
	Exact match “Finess Energy Oy toteuttaa avaimet käteen -energiaratkaisuja teollisuudelle ja kiinteistöille.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
8	Franklin OY	Exact match	Helsinki, FinlandHQ recorded Oct 10, 2026	11-50	15 contacts →
	Exact match “Energiaa, tehokkuutta ja energiatehokkuutta!” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
9	Cervius	Exact match	Vantaa, FinlandHQ recorded Oct 10, 2026	11-50	14 contacts →
	Exact match “Varmista kiinteistösi paras mahdollinen arvo, vuokrattavuus ja käytettävyys – jätä säätäminen meille!” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
10	Talotohtori 2.0 Enermix OY	Exact match	Tampere, FinlandHQ recorded Oct 10, 2026	11-50	11 contacts →
	Exact match “Enermix Oy provides energy optimization services for residential and commercial real estate portfolios, helping property owners and property managers reduce energy costs through…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
11	Renea OY	Exact match	Vantaa, FinlandHQ recorded Oct 10, 2026	1-10	10 contacts →
	Exact match “Renea on kiinteistöjen energiatehokkuuden parantamiseen ja rakennusautomaatioon erikoistunut asiantuntijayritys.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
12	I O Control	Exact match	Helsinki, FinlandHQ recorded Oct 10, 2026	1-10	8 contacts →
	Exact match “Building automation systems-> maintenance, repair, renovation, contracting, consulting.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
13	Optiwatti OY	Exact match	Espoo, FinlandHQ recorded Oct 10, 2026	11-50	7 contacts →
	Exact match “Our mission in OptiWatti is to fight against climate change.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
14	Enreport	Exact match	Espoo, FinlandHQ recorded Oct 10, 2026	1-10	6 contacts →
	Exact match “We provide software solutions to decrease energy consumption and CO2 emissions to commercial and industrial companies” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
15	Pokas OY	Exact match	Jyväskylä, FinlandHQ recorded Oct 10, 2026	1-10	6 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
16	Nanea OY	Exact match	Pyhtää, FinlandHQ recorded Oct 10, 2026	1-10	5 contacts →
	Exact match “Järkevän energiankäytön puolesta jo vuodesta 2006 Nanea Oy on energiatehokkuuden ja vastuullisten lämmitysratkaisujen edelläkävijä.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
17	SV Automaatio OY	Exact match	Jyväskylä, FinlandHQ recorded Oct 10, 2026	1-10	4 contacts →
	Exact match “Building automation \| Design, installation & maintenance” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
18	Nolite OY	Exact match	Ylöjärvi, FinlandHQ recorded Oct 10, 2026	1-10	4 contacts →
	Exact match “Rakennusautomaatioalan vankka ammattilainen.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
19	Energy Plus Engineering OY	Exact match	Lappeenranta, FinlandHQ recorded Oct 10, 2026	1-10	4 contacts →
	Exact match “Our value proposition is to assist real estate owners to make better return on their assets.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
20	Theben OY	Exact match	Helsinki, FinlandHQ recorded Oct 10, 2026	501-1,000	3 contacts →
	Exact match “Energiaa oikeaan aikaan.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
21	Suomen Energiainsinöörit OY	Exact match	Helsinki, FinlandHQ recorded Oct 10, 2026	1-10	3 contacts →
	Exact match “Energiatehokkuuden parantaminen Useimmissa rakennuksissa voidaan energiatehokkuutta parantaa edullisilla teknisillä ratkaisuilla.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
22	Entos OY	Exact match	Mikkeli, FinlandHQ recorded Oct 10, 2026	1-10	3 contacts →
	Exact match “Entos Oy on vaativia LVIS-automaatioratkaisuja tuottava yritys.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
23	Eeneman OY	Exact match	Espoo, FinlandHQ recorded Oct 10, 2026	1-10	2 contacts →
	Exact match “Eeneman is a energy management service provider for building owners.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
24	Energion	Exact match	Jyväskylä, FinlandHQ recorded Oct 10, 2026	51-200	1 contacts →
	Exact match “Olemme kiinteistöjen energiaremontointiin ja energiatehokkuuden optimointiin erikoistunut yritys.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
25	Isma Controlli Finland	Exact match	Vantaa, FinlandHQ recorded Oct 10, 2026	1-10	1 contacts →
	Exact match “Välitämme kiinteistöistäsi ja niiden käyttäjistä!” Recorded in the RevenueBase company graph · Oct 10, 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 “commercial energy efficiency startups”. 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 40 commercial energy efficiency startups based in Finland

See the full list, filter by size, metro and specialty, and access 224 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Commercial energy efficiency startups based in Finland at a glance

As of Oct 10, 2026

54.2%Verified-email coverage

10.3Average contacts per company

1-10Median size (employees)

25.0%Largest-city concentration · Espoo

Oct 10, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 40 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 “commercial energy efficiency startups” 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 224 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 October 10, 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 “commercial energy efficiency startups”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many commercial energy efficiency startups are there based in Finland?

RevenueBase identified 40 company matches for commercial energy efficiency startups associated with Finland as of October 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?

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

Which city has the most commercial energy efficiency startups?

Espoo leads with 10 company records, followed by Helsinki (7) and Vantaa (4).

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 224 professional contacts with verified work emails tracked across these 40 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 October 10, 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.