Company lists · Data refreshed September 2026
Top 25 Cleantech startups based in Finland
RevenueBase identified 46 company matches for cleantech startups associated with Finland as of September 2026 and tracks 1,200 professional contacts across them, including 602 with verified work emails. Helsinki is the largest hub.
This list covers company matches for cleantech 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 September 19, 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.
The 25 largest cleantech startups based in Finland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 940 contacts → | ||||
Exact match “Wärtsilä leads the transition towards a 100% renewable energy future.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 25 contacts → | ||||
Exact match “Lemkem is the leading turnkey sustainable energy solutions provider in Finland.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 21 contacts → | ||||
Exact match “At Solved, we believe that everyone can go smart, clean and sustainable with the right kind of help and connections.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 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 19, 2026 · View company records in RevenueBase | |||||
| 5 | 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 13 contacts → | ||||
Exact match “GreenStream Network Ltd is an investor, investment management and advisory company in the fields of renewable energy, energy efficiency and climate finance, with active operations…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 12 contacts → | ||||
Exact match “Green dreams to productive reality We help cleantech companies in commercializing products.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 10 contacts → | ||||
Exact match “Geyser Batteries is a Finnish cleantech startup developing and producing a new generation of safe and sustainable power batteries using proprietary water-based electrochemistry.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 10 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 8 contacts → | ||||
Exact match “Novox is an engineering consulting company specialiced in clean energy and in energy economics.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 8 contacts → | ||||
Exact match “Valoe is a technology provider with a mission of clean solar energy.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 7 contacts → | ||||
Exact match “Will & Must is a Helsinki-based developer of energy and infrastructure projects, founded in 2022.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 7 contacts → | ||||
Exact match “GEBO Finland founded in 1969 is a part of GEBO Cleantech Group.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 6 contacts → | ||||
Exact match “Flexens is a consultancy and a project development company.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 6 contacts → | ||||
Exact match “We are a Finnish clean technology company, actively engaged in both marine and land-based industries.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 5 contacts → | ||||
Exact match “Solar park developers and experts.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 5 contacts → | ||||
Exact match “Ozonium is a cleantech startup based in Tampere specialized in the distribution and installation of Ozone equipment for water and air treatments.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 4 contacts → | ||||
Exact match “Green Net Finland is a cleantech cluster developing smart and low-carbon urban environment.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 3 contacts → | ||||
Exact match “CORE AREAS OF EXPERTISE: Renewable energy l bioenergy, alternative energy sources l Waste-to-energy, biogas technology and biodiesel technology l Energy efficiency and energy…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 3 contacts → | ||||
Exact match “CO2Esto Ltd is an expert company which is serving companies, communities and individuals to seek cost-efficient solutions to combat climate and energy challenges.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 3 contacts → | ||||
Exact match “Kuulea is a green tech company specializing in decentralized datacenter services and carbon neutral data heating” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 3 contacts → | ||||
Exact match “RENEWE - Uusiutuvan energian asiantuntijasi Suomen johtavat aurinkoenergia, lämpöpumppu, lataus- ja jäähdytysjärjestelmät sekä kokonaispalvelut yhdestä osoitteesta, suunnittelusta…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 3 contacts → | ||||
Exact match “Sons of solar on aurinkoenergian edelläkävijä.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 2 contacts → | ||||
Exact match “Welcome to Andament, where innovation meets sustainability.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 2 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 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 “cleantech 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 46 cleantech startups based in Finland
See the full list, filter by size, metro and specialty, and access 602 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Cleantech startups based in Finland at a glance
As of Sep 19, 2026Companies by employee count
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 46 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 “cleantech 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 602 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 19, 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 “cleantech startups”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many cleantech startups are there based in Finland?
RevenueBase identified 46 company matches for cleantech startups 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 cleantech startups?
Helsinki leads with 18 company records, followed by Espoo (4) and Tampere (3).
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 602 professional contacts with verified work emails tracked across these 46 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 46 cleantech startups based in Finland. Start with a free account, no credit card.
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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.
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Company intelligence · public preview
Top 25 cleantech startups based in Finland
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 46 matching company records for cleantech startups based in Finland, with 1,200 tracked contacts and 602 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 cleantech startups based in Finland
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Wärtsilä Energywartsila.comHQ: Helsinki, FinlandReported employees: 10001+ | Helsinki, Finland | 10001+ | Exact match | 940 contacts → |
“Wärtsilä leads the transition towards a 100% renewable energy future.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Lemkemlemkem.fiHQ: Lahti, FinlandReported employees: 51-200 | Lahti, Finland | 51-200 | Exact match | 25 contacts → |
“Lemkem is the leading turnkey sustainable energy solutions provider in Finland.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Solvedsolved.fi HQ: Helsinki, FinlandReported employees: 11-50 | Helsinki, Finland | 11-50 | Exact match | 21 contacts → |
“At Solved, we believe that everyone can go smart, clean and sustainable with the right kind of help and connections.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Forus OYforus.fiHQ: Helsinki, FinlandReported employees: 11-50 | Helsinki, Finland | 11-50 | Exact match | 20 contacts → |
“Forus is a novel finance and sales company that develops services to stop climate-change profitably.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Vatajankoskivatajankoski.fiHQ: Kankaanpää, FinlandReported employees: 51-200 | Kankaanpää, Finland | 51-200 | Exact match | 18 contacts → |
“Vatajankoski on uuden energian yhtiö, joka säästää energiaa – ja lopun se tuottaa kotimaisilla ja uusiutuvilla polttoaineilla.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Greenstream Network LTDgreenstream.netHQ: Helsinki, FinlandReported employees: 11-50 | Helsinki, Finland | 11-50 | Exact match | 13 contacts → |
“GreenStream Network Ltd is an investor, investment management and advisory company in the fields of renewable energy, energy efficiency and climate finance, with active operations…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Voltervolter.fiHQ: Tupos, FinlandReported employees: 11-50 | Tupos, Finland | 11-50 | Exact match | 12 contacts → |
“Green dreams to productive reality We help cleantech companies in commercializing products.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Geyser Batteriesgeyserbatteries.comHQ: Helsinki, FinlandReported employees: 11-50 | Helsinki, Finland | 11-50 | Exact match | 10 contacts → |
“Geyser Batteries is a Finnish cleantech startup developing and producing a new generation of safe and sustainable power batteries using proprietary water-based electrochemistry.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  VSB Uusiutuva Energia Suomi OYvsb.energyHQ: Oulu, FinlandReported employees: 11-50 | Oulu, Finland | 11-50 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 |  Novox OYnovox.fiHQ: Espoo, FinlandReported employees: 1-10 | Espoo, Finland | 1-10 | Exact match | 8 contacts → |
“Novox is an engineering consulting company specialiced in clean energy and in energy economics.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Valoe OYJvaloe.com HQ: Mikkeli, FinlandReported employees: 11-50 | Mikkeli, Finland | 11-50 | Exact match | 8 contacts → |
“Valoe is a technology provider with a mission of clean solar energy.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Will & Must OYwillmust.fiHQ: Helsinki, FinlandReported employees: 1-10 | Helsinki, Finland | 1-10 | Exact match | 7 contacts → |
“Will & Must is a Helsinki-based developer of energy and infrastructure projects, founded in 2022.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Gebo Finland OYgebo.fi HQ: Helsinki, FinlandReported employees: 1-10 | Helsinki, Finland | 1-10 | Exact match | 7 contacts → |
“GEBO Finland founded in 1969 is a part of GEBO Cleantech Group.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Flexens OY ABflexens.comHQ: Helsinki, FinlandReported employees: 11-50 | Helsinki, Finland | 11-50 | Exact match | 6 contacts → |
“Flexens is a consultancy and a project development company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Smartpipesmartpipe.fi HQ: Vantaa, FinlandReported employees: 1-10 | Vantaa, Finland | 1-10 | Exact match | 6 contacts → |
“We are a Finnish clean technology company, actively engaged in both marine and land-based industries.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Aurinkokarhu OYaurinkokarhu.fiHQ: Korsholm, FinlandReported employees: 1-10 | Korsholm, Finland | 1-10 | Exact match | 5 contacts → |
“Solar park developers and experts.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Ozoniumozonium.fi HQ: Tampere, FinlandReported employees: 1-10 | Tampere, Finland | 1-10 | Exact match | 5 contacts → |
“Ozonium is a cleantech startup based in Tampere specialized in the distribution and installation of Ozone equipment for water and air treatments.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Green NET Finlandgnf.fi HQ: Helsinki, FinlandReported employees: 1-10 | Helsinki, Finland | 1-10 | Exact match | 4 contacts → |
“Green Net Finland is a cleantech cluster developing smart and low-carbon urban environment.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Arcineer OYarcineer.comHQ: Jyväskylä, FinlandReported employees: 1-10 | Jyväskylä, Finland | 1-10 | Exact match | 3 contacts → |
“CORE AREAS OF EXPERTISE: Renewable energy l bioenergy, alternative energy sources l Waste-to-energy, biogas technology and biodiesel technology l Energy efficiency and energy…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Co2estoco2esto.comHQ: Jyvaskyla, FinlandReported employees: 1-10 | Jyvaskyla, Finland | 1-10 | Exact match | 3 contacts → |
“CO2Esto Ltd is an expert company which is serving companies, communities and individuals to seek cost-efficient solutions to combat climate and energy challenges.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Kuulea Energia OYkuulea.comHQ: Tampere, FinlandReported employees: 1-10 | Tampere, Finland | 1-10 | Exact match | 3 contacts → |
“Kuulea is a green tech company specializing in decentralized datacenter services and carbon neutral data heating” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Renewe Group OY Helsinkirenewe.fiHQ: Helsinki, FinlandReported employees: 1-10 | Helsinki, Finland | 1-10 | Exact match | 3 contacts → |
“RENEWE - Uusiutuvan energian asiantuntijasi Suomen johtavat aurinkoenergia, lämpöpumppu, lataus- ja jäähdytysjärjestelmät sekä kokonaispalvelut yhdestä osoitteesta, suunnittelusta…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Sons Of Solar OYsonsofsolar.fiHQ: Turku, FinlandReported employees: 11-50 | Turku, Finland | 11-50 | Exact match | 3 contacts → |
“Sons of solar on aurinkoenergian edelläkävijä.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Andament OYandament.fiHQ: Kalajoki, FinlandReported employees: 51-200 | Kalajoki, Finland | 51-200 | Exact match | 2 contacts → |
“Welcome to Andament, where innovation meets sustainability.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Necsomnecsom.com HQ: Helsinki, FinlandReported employees: 1-10 | Helsinki, Finland | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 46 company matches
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Cleantech startups: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
46 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 46 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for cleantech startups?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many cleantech startups did RevenueBase find based in Finland?
The saved snapshot records 46 matching company records, 1,200 tracked contacts and 602 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cleantech startups by geography
- Cleantech startups based in Belo Horizonte, Brazil
- Cleantech startups based in Curitiba, Brazil
- Cleantech startups based in Fortaleza, Brazil
- Cleantech startups based in Porto Alegre, Brazil
- Cleantech startups based in Rio De Janeiro, Brazil
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- Cleantech startups based in Chennai, India
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 cleantech startups based in Finland. Snapshot: September 19, 2026. https://revenuebase.ai/companies/cleantech-startups/finland.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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Company intelligence · public preview
Top 25 cleantech startups based in Finland
RevenueBase records 46 matching company records for cleantech startups based in Finland, with 1,200 tracked contacts and 602 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 cleantech startups based in Finland
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Wärtsilä Energywartsila.com HQ: Helsinki, FinlandReported employees: 10001+ | Helsinki, Finland | 10001+ | Exact match | 940 contacts → |
“Wärtsilä leads the transition towards a 100% renewable energy future.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Lemkemlemkem.fi HQ: Lahti, FinlandReported employees: 51-200 | Lahti, Finland | 51-200 | Exact match | 25 contacts → |
“Lemkem is the leading turnkey sustainable energy solutions provider in Finland.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Solvedsolved.fi HQ: Helsinki, FinlandReported employees: 11-50 | Helsinki, Finland | 11-50 | Exact match | 21 contacts → |
“At Solved, we believe that everyone can go smart, clean and sustainable with the right kind of help and connections.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Forus OYforus.fi HQ: Helsinki, FinlandReported employees: 11-50 | Helsinki, Finland | 11-50 | Exact match | 20 contacts → |
“Forus is a novel finance and sales company that develops services to stop climate-change profitably.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Vatajankoskivatajankoski.fi HQ: Kankaanpää, FinlandReported employees: 51-200 | Kankaanpää, Finland | 51-200 | Exact match | 18 contacts → |
“Vatajankoski on uuden energian yhtiö, joka säästää energiaa – ja lopun se tuottaa kotimaisilla ja uusiutuvilla polttoaineilla.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Greenstream Network LTDgreenstream.net HQ: Helsinki, FinlandReported employees: 11-50 | Helsinki, Finland | 11-50 | Exact match | 13 contacts → |
“GreenStream Network Ltd is an investor, investment management and advisory company in the fields of renewable energy, energy efficiency and climate finance, with active operations…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Voltervolter.fi HQ: Tupos, FinlandReported employees: 11-50 | Tupos, Finland | 11-50 | Exact match | 12 contacts → |
“Green dreams to productive reality We help cleantech companies in commercializing products.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Geyser Batteriesgeyserbatteries.com HQ: Helsinki, FinlandReported employees: 11-50 | Helsinki, Finland | 11-50 | Exact match | 10 contacts → |
“Geyser Batteries is a Finnish cleantech startup developing and producing a new generation of safe and sustainable power batteries using proprietary water-based electrochemistry.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | VSB Uusiutuva Energia Suomi OYvsb.energy HQ: Oulu, FinlandReported employees: 11-50 | Oulu, Finland | 11-50 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | Novox OYnovox.fi HQ: Espoo, FinlandReported employees: 1-10 | Espoo, Finland | 1-10 | Exact match | 8 contacts → |
“Novox is an engineering consulting company specialiced in clean energy and in energy economics.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Valoe OYJvaloe.com HQ: Mikkeli, FinlandReported employees: 11-50 | Mikkeli, Finland | 11-50 | Exact match | 8 contacts → |
“Valoe is a technology provider with a mission of clean solar energy.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Will & Must OYwillmust.fi HQ: Helsinki, FinlandReported employees: 1-10 | Helsinki, Finland | 1-10 | Exact match | 7 contacts → |
“Will & Must is a Helsinki-based developer of energy and infrastructure projects, founded in 2022.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Gebo Finland OYgebo.fi HQ: Helsinki, FinlandReported employees: 1-10 | Helsinki, Finland | 1-10 | Exact match | 7 contacts → |
“GEBO Finland founded in 1969 is a part of GEBO Cleantech Group.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Flexens OY ABflexens.com HQ: Helsinki, FinlandReported employees: 11-50 | Helsinki, Finland | 11-50 | Exact match | 6 contacts → |
“Flexens is a consultancy and a project development company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Smartpipesmartpipe.fi HQ: Vantaa, FinlandReported employees: 1-10 | Vantaa, Finland | 1-10 | Exact match | 6 contacts → |
“We are a Finnish clean technology company, actively engaged in both marine and land-based industries.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Aurinkokarhu OYaurinkokarhu.fi HQ: Korsholm, FinlandReported employees: 1-10 | Korsholm, Finland | 1-10 | Exact match | 5 contacts → |
“Solar park developers and experts.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Ozoniumozonium.fi HQ: Tampere, FinlandReported employees: 1-10 | Tampere, Finland | 1-10 | Exact match | 5 contacts → |
“Ozonium is a cleantech startup based in Tampere specialized in the distribution and installation of Ozone equipment for water and air treatments.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Green NET Finlandgnf.fi HQ: Helsinki, FinlandReported employees: 1-10 | Helsinki, Finland | 1-10 | Exact match | 4 contacts → |
“Green Net Finland is a cleantech cluster developing smart and low-carbon urban environment.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Arcineer OYarcineer.com HQ: Jyväskylä, FinlandReported employees: 1-10 | Jyväskylä, Finland | 1-10 | Exact match | 3 contacts → |
“CORE AREAS OF EXPERTISE: Renewable energy l bioenergy, alternative energy sources l Waste-to-energy, biogas technology and biodiesel technology l Energy efficiency and energy…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Co2estoco2esto.com HQ: Jyvaskyla, FinlandReported employees: 1-10 | Jyvaskyla, Finland | 1-10 | Exact match | 3 contacts → |
“CO2Esto Ltd is an expert company which is serving companies, communities and individuals to seek cost-efficient solutions to combat climate and energy challenges.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Kuulea Energia OYkuulea.com HQ: Tampere, FinlandReported employees: 1-10 | Tampere, Finland | 1-10 | Exact match | 3 contacts → |
“Kuulea is a green tech company specializing in decentralized datacenter services and carbon neutral data heating” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Renewe Group OY Helsinkirenewe.fi HQ: Helsinki, FinlandReported employees: 1-10 | Helsinki, Finland | 1-10 | Exact match | 3 contacts → |
“RENEWE - Uusiutuvan energian asiantuntijasi Suomen johtavat aurinkoenergia, lämpöpumppu, lataus- ja jäähdytysjärjestelmät sekä kokonaispalvelut yhdestä osoitteesta, suunnittelusta…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Sons Of Solar OYsonsofsolar.fi HQ: Turku, FinlandReported employees: 11-50 | Turku, Finland | 11-50 | Exact match | 3 contacts → |
“Sons of solar on aurinkoenergian edelläkävijä.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Andament OYandament.fi HQ: Kalajoki, FinlandReported employees: 51-200 | Kalajoki, Finland | 51-200 | Exact match | 2 contacts → |
“Welcome to Andament, where innovation meets sustainability.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Necsomnecsom.com HQ: Helsinki, FinlandReported employees: 1-10 | Helsinki, Finland | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 46 company matches
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Cleantech startups: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
46 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 46 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for cleantech startups?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many cleantech startups did RevenueBase find based in Finland?
The saved snapshot records 46 matching company records, 1,200 tracked contacts and 602 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 cleantech startups based in Finland. Snapshot: September 19, 2026. https://revenuebase.ai/companies/cleantech-startups/finland.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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