Company lists · Data refreshed October 2026
Top 23 Cleantech and green energy startups based in Austria
RevenueBase identified 72 company matches for cleantech and green energy startups associated with Austria as of October 2026 and tracks 402 professional contacts across them, including 157 with verified work emails. Vienna is the largest hub.
This list covers company matches for cleantech and green energy startups associated with Austria, 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 9, 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 23 largest cleantech and green energy startups based in Austria
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 48 contacts → | ||||
Exact match “We’re building Austria’s fastest-growing clean energy company, combining technology, process excellence, and hands-on execution to make renewable heating and solar power radically…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 2 | 45 contacts → | ||||
Exact match “Nomen est omen – solar konzentriert sich auf nachhaltige Energiesysteme und -lösungen für das dritte Jahrtausend.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 3 | 37 contacts → | ||||
Exact match “Over 4 decades of experience, more than installations and the constant further development of our technology are important cornerstones of the corporate strategy.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 4 | 27 contacts → | ||||
Exact match “Wir, das Team der electrify, engagieren uns für innovative Mobilitätskonzepte, die den Umweltschutz auf die Straße bringen, die Sonnenenergie zu den Menschen und den…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 5 | 13 contacts → | ||||
Exact match “Sunlumo is new - a green technology company with a focus on solar energy.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 6 | 11 contacts → | ||||
Exact match “Voltares is an independent renewable energy developer focused on utility-scale and distributed assets in emerging markets.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 7 | 11 contacts → | ||||
Exact match “Conversio Energie GmbH is a chemicals company based out of Koschatstraße 24, Spittal an der Drau, Austria.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 8 | 11 contacts → | ||||
Exact match “Vor dem Hintergrund aktueller klimatischer Prozesse, neuer gesetzlicher Rahmenbedingungen und hoher Kosten wird Dekarbonisierung zu einem der wichtigsten Themen in der…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 9 | 9 contacts → | ||||
Exact match “Wir gestalten die Energiezukunft!” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 10 | 8 contacts → | ||||
Exact match “SOLANA hat sich der nachhaltigen Erzeugung, Speicherung und Verteilung von erneuerbarer Energie verschrieben.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 11 | 7 contacts → | ||||
Exact match “Wir haben es uns seit 2011 zur Aufgabe gemacht, das Potential der Sonne als Energiequelle zu nutzen.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 12 | 6 contacts → | ||||
Exact match “Transforming the world to net zero requires clean energy from local production.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 13 | 6 contacts → | ||||
Exact match “Energy+- your partner for renewable energies.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 14 | 4 contacts → | ||||
Exact match “At novventos, we’re driven by the ambition to develop breakthrough technology that harnesses nature’s power to produce clean, sustainable energy.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 15 | 4 contacts → | ||||
Exact match “Sustainable investments in sustainable energy – made in Austria” • We are an that operates internationally and specializes in investments in renewable energy.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 16 | 3 contacts → | ||||
Exact match “Energiewende aus einer Hand: Als innovatives Unternehmen im Bereich erneuerbare Energien sind wir stolz darauf, individuelle Lösungen zu entwickeln, die zu einer nachhaltigen…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 17 | 3 contacts → | ||||
Exact match “Wir befassen uns seit Bestehen unseres Unternehmens, mehr als 30 Jahre lang, mit der Planung und dem Engineering von Erneuerbarer Energie und Gebäudetechnik.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 18 | 3 contacts → | ||||
Exact match “Der Startschuss für REGIOWERT ELEKTROTECHNIK fiel am 07.11.2022.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 19 | 2 contacts → | ||||
Exact match “Accelerate the change towards renewable energy” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 20 | 2 contacts → | ||||
Exact match “Water · wind · sun” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 21 | 2 contacts → | ||||
Exact match “Greesma ist Ihr professioneller Partner für nachhaltige, intelligente und wirtschaftliche Energielösungen.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 22 | 2 contacts → | ||||
Exact match “Wir sind im Bereich der erneuerbaren Energien tätig und bieten Ihnen hochwertige Photovoltaikanlagen für Privat- und Geschäftskunden.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 23 | 1 contacts → | ||||
Exact match “Vertrauen Sie auf unsere Fachkenntnisse und entdecken Sie die Vorteile der Sonnenenergie.” Recorded in the RevenueBase company graph · Oct 9, 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 and green energy 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 23 of 72 cleantech and green energy startups based in Austria
See the full list, filter by size, metro and specialty, and access 157 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Cleantech and green energy startups based in Austria at a glance
As of Oct 9, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Austria, so it is reported there. Company counts and contact totals on this page are exact for Austria, over 72 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 Austria whose business descriptions match “cleantech and green energy 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 157 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 9, 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 and green energy startups”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many cleantech and green energy startups are there based in Austria?
RevenueBase identified 72 company matches for cleantech and green energy startups associated with Austria 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?
Heizma tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most cleantech and green energy startups?
Vienna leads with 7 company records, followed by Linz (3) and Graz (2).
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 157 professional contacts with verified work emails tracked across these 72 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 9, 2026.
Ready to reach these companies? Verified emails and direct dials for all 72 cleantech and green energy startups based in Austria. Start with a free account, no credit card.
Download this list →Related lists
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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.
More company lists
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Company intelligence · public preview
Top 23 cleantech and green energy startups based in Austria
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 72 matching company records for cleantech and green energy startups based in Austria, with 402 tracked contacts and 157 verified work emails.
This public preview shows 23 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 9, 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 23 cleantech and green energy startups based in Austria
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 |  Heizmaheizma.atHQ: Vienna, AustriaReported employees: 51-200 | Vienna, Austria | 51-200 | Exact match | 48 contacts → |
“We’re building Austria’s fastest-growing clean energy company, combining technology, process excellence, and hands-on execution to make renewable heating and solar power radically…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Energy3000 Solar Gmbhenergy3000.comHQ: Müllendorf, AustriaReported employees: 51-200 | Müllendorf, Austria | 51-200 | Exact match | 45 contacts → |
“Nomen est omen – solar konzentriert sich auf nachhaltige Energiesysteme und -lösungen für das dritte Jahrtausend.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  M-Tec Energy For Futuremtec-systems.comHQ: Pinsdorf, AustriaReported employees: 51-200 | Pinsdorf, Austria | 51-200 | Exact match | 37 contacts → |
“Over 4 decades of experience, more than installations and the constant further development of our technology are important cornerstones of the corporate strategy.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Electrifyelectrify.atHQ: Wolkersdorf Im Weinviertel, AustriaReported employees: 51-200 | Wolkersdorf Im Weinviertel, Austria | 51-200 | Exact match | 27 contacts → |
“Wir, das Team der electrify, engagieren uns für innovative Mobilitätskonzepte, die den Umweltschutz auf die Straße bringen, die Sonnenenergie zu den Menschen und den…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Sunlumo Technology Gmbhsunlumo-energy.comHQ: Perg, AustriaReported employees: 11-50 | Perg, Austria | 11-50 | Exact match | 13 contacts → |
“Sunlumo is new - a green technology company with a focus on solar energy.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Voltaresvoltares.comHQ: Vienna, AustriaReported employees: 11-50 | Vienna, Austria | 11-50 | Exact match | 11 contacts → |
“Voltares is an independent renewable energy developer focused on utility-scale and distributed assets in emerging markets.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Conversio Energie Gmbhconversioenergie.atHQ: Spittal An Der Drau, AustriaReported employees: 201-500 | Spittal An Der Drau, Austria | 201-500 | Exact match | 11 contacts → |
“Conversio Energie GmbH is a chemicals company based out of Koschatstraße 24, Spittal an der Drau, Austria.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  One2zeroone2zero.comHQ: Salzburg, AustriaReported employees: 11-50 | Salzburg, Austria | 11-50 | Exact match | 11 contacts → |
“Vor dem Hintergrund aktueller klimatischer Prozesse, neuer gesetzlicher Rahmenbedingungen und hoher Kosten wird Dekarbonisierung zu einem der wichtigsten Themen in der…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Energiepark Bruck Leithaenergiepark.atHQ: Gemeinde Bruck An Der Leitha, AustriaReported employees: 11-50 | Gemeinde Bruck An Der Leitha, Austria | 11-50 | Exact match | 9 contacts → |
“Wir gestalten die Energiezukunft!” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Solana Renewable Technologies Gmbhsolana-energy.atHQ: Graz, AustriaReported employees: 11-50 | Graz, Austria | 11-50 | Exact match | 8 contacts → |
“SOLANA hat sich der nachhaltigen Erzeugung, Speicherung und Verteilung von erneuerbarer Energie verschrieben.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Solah Gmbhsolah-group.comHQ: Mattersburg, AustriaReported employees: 11-50 | Mattersburg, Austria | 11-50 | Exact match | 7 contacts → |
“Wir haben es uns seit 2011 zur Aufgabe gemacht, das Potential der Sonne als Energiequelle zu nutzen.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Pvplus Gmbhpvplus.atHQ: Klosterneuburg, AustriaReported employees: 11-50 | Klosterneuburg, Austria | 11-50 | Exact match | 6 contacts → |
“Transforming the world to net zero requires clean energy from local production.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Energy Solutions Gmbhenergyplus.atHQ: Engerwitzdorf, AustriaReported employees: 1-10 | Engerwitzdorf, Austria | 1-10 | Exact match | 6 contacts → |
“Energy+- your partner for renewable energies.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Novventosnovventos.comHQ: Neukirchen, AustriaReported employees: 1-10 | Neukirchen, Austria | 1-10 | Exact match | 4 contacts → |
“At novventos, we’re driven by the ambition to develop breakthrough technology that harnesses nature’s power to produce clean, sustainable energy.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Enso Gmbhenso.atHQ: Raaba-grambach, AustriaReported employees: 1-10 | Raaba-grambach, Austria | 1-10 | Exact match | 4 contacts → |
“Sustainable investments in sustainable energy – made in Austria” • We are an that operates internationally and specializes in investments in renewable energy.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Nu50 Energynu50.energyHQ: Linz, AustriaReported employees: 1-10 | Linz, Austria | 1-10 | Exact match | 3 contacts → |
“Energiewende aus einer Hand: Als innovatives Unternehmen im Bereich erneuerbare Energien sind wir stolz darauf, individuelle Lösungen zu entwickeln, die zu einer nachhaltigen…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Büro FÜR Erneuerbare Energie Riebenbauerriebenbauer.at HQ: Pinggau, AustriaReported employees: 11-50 | Pinggau, Austria | 11-50 | Exact match | 3 contacts → |
“Wir befassen uns seit Bestehen unseres Unternehmens, mehr als 30 Jahre lang, mit der Planung und dem Engineering von Erneuerbarer Energie und Gebäudetechnik.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Regiowert Elektrotechnik Gmbhregiowert-elektro.at HQ: Bad Sauerbrunn, AustriaReported employees: 1-10 | Bad Sauerbrunn, Austria | 1-10 | Exact match | 3 contacts → |
“Der Startschuss für REGIOWERT ELEKTROTECHNIK fiel am 07.11.2022.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Inuvolt Gmbhinuvolt.comHQ: Wartberg Ob Der Aist, AustriaReported employees: 1-10 | Wartberg Ob Der Aist, Austria | 1-10 | Exact match | 2 contacts → |
“Accelerate the change towards renewable energy” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Heinzel Energyheinzelenergy.comHQ: Vienna, AustriaReported employees: 1-10 | Vienna, Austria | 1-10 | Exact match | 2 contacts → |
“Water · wind · sun” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Greesma Energy Services Gmbhgreesma.comHQ: Sankt Margarethen An Der Raab, AustriaReported employees: 1-10 | Sankt Margarethen An Der Raab, Austria | 1-10 | Exact match | 2 contacts → |
“Greesma ist Ihr professioneller Partner für nachhaltige, intelligente und wirtschaftliche Energielösungen.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Drauland Solardraulandsolar.atHQ: Griffen, AustriaReported employees: 1-10 | Griffen, Austria | 1-10 | Exact match | 2 contacts → |
“Wir sind im Bereich der erneuerbaren Energien tätig und bieten Ihnen hochwertige Photovoltaikanlagen für Privat- und Geschäftskunden.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Efit Energie Gmbhefit.solarHQ: Waldkirchen Am Wesen, AustriaReported employees: 51-200 | Waldkirchen Am Wesen, Austria | 51-200 | Exact match | 1 contacts → |
“Vertrauen Sie auf unsere Fachkenntnisse und entdecken Sie die Vorteile der Sonnenenergie.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 23 of 72 company matches
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Cleantech and green energy startups: dataset insights
October 9, 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
72 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 Austria, so it is reported there. Company counts and contact totals on this page are exact for Austria, over 72 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: October 9, 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 and green energy 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 and green energy startups did RevenueBase find based in Austria?
The saved snapshot records 72 matching company records, 402 tracked contacts and 157 verified emails. The public preview displays 23 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: October 9, 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 and green energy startups by geography
- Cleantech and green energy startups based in Melbourne, Australia
- Cleantech and green energy startups based in Sydney, Australia
- Cleantech and green energy startups based in Belo Horizonte, Brazil
- Cleantech and green energy startups based in Curitiba, Brazil
- Cleantech and green energy startups based in Fortaleza, Brazil
- Cleantech and green energy startups based in Rio De Janeiro, Brazil
- Cleantech and green energy startups based in Sao Paulo, Brazil
- Cleantech and green energy startups based in Calgary, Canada
- Cleantech and green energy startups based in Toronto, Canada
- Cleantech and green energy startups based in Santiago, Chile
- Cleantech and green energy startups based in Bogota, Colombia
- Cleantech and green energy startups based in Cairo, Egypt
Cite this list
RevenueBase Data Team. Top 23 cleantech and green energy startups based in Austria. Snapshot: October 9, 2026. https://revenuebase.ai/companies/cleantech-and-green-energy-startups/austria.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Cleantech and green energy startups based in Melbourne, Australia
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Company intelligence · public preview
Top 23 cleantech and green energy startups based in Austria
RevenueBase records 72 matching company records for cleantech and green energy startups based in Austria, with 402 tracked contacts and 157 verified work emails.
This public preview shows 23 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 9, 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 23 cleantech and green energy startups based in Austria
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 | Heizmaheizma.at HQ: Vienna, AustriaReported employees: 51-200 | Vienna, Austria | 51-200 | Exact match | 48 contacts → |
“We’re building Austria’s fastest-growing clean energy company, combining technology, process excellence, and hands-on execution to make renewable heating and solar power radically…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Energy3000 Solar Gmbhenergy3000.com HQ: Müllendorf, AustriaReported employees: 51-200 | Müllendorf, Austria | 51-200 | Exact match | 45 contacts → |
“Nomen est omen – solar konzentriert sich auf nachhaltige Energiesysteme und -lösungen für das dritte Jahrtausend.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | M-Tec Energy For Futuremtec-systems.com HQ: Pinsdorf, AustriaReported employees: 51-200 | Pinsdorf, Austria | 51-200 | Exact match | 37 contacts → |
“Over 4 decades of experience, more than installations and the constant further development of our technology are important cornerstones of the corporate strategy.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Electrifyelectrify.at HQ: Wolkersdorf Im Weinviertel, AustriaReported employees: 51-200 | Wolkersdorf Im Weinviertel, Austria | 51-200 | Exact match | 27 contacts → |
“Wir, das Team der electrify, engagieren uns für innovative Mobilitätskonzepte, die den Umweltschutz auf die Straße bringen, die Sonnenenergie zu den Menschen und den…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Sunlumo Technology Gmbhsunlumo-energy.com HQ: Perg, AustriaReported employees: 11-50 | Perg, Austria | 11-50 | Exact match | 13 contacts → |
“Sunlumo is new - a green technology company with a focus on solar energy.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Voltaresvoltares.com HQ: Vienna, AustriaReported employees: 11-50 | Vienna, Austria | 11-50 | Exact match | 11 contacts → |
“Voltares is an independent renewable energy developer focused on utility-scale and distributed assets in emerging markets.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Conversio Energie Gmbhconversioenergie.at HQ: Spittal An Der Drau, AustriaReported employees: 201-500 | Spittal An Der Drau, Austria | 201-500 | Exact match | 11 contacts → |
“Conversio Energie GmbH is a chemicals company based out of Koschatstraße 24, Spittal an der Drau, Austria.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | One2zeroone2zero.com HQ: Salzburg, AustriaReported employees: 11-50 | Salzburg, Austria | 11-50 | Exact match | 11 contacts → |
“Vor dem Hintergrund aktueller klimatischer Prozesse, neuer gesetzlicher Rahmenbedingungen und hoher Kosten wird Dekarbonisierung zu einem der wichtigsten Themen in der…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Energiepark Bruck Leithaenergiepark.at HQ: Gemeinde Bruck An Der Leitha, AustriaReported employees: 11-50 | Gemeinde Bruck An Der Leitha, Austria | 11-50 | Exact match | 9 contacts → |
“Wir gestalten die Energiezukunft!” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Solana Renewable Technologies Gmbhsolana-energy.at HQ: Graz, AustriaReported employees: 11-50 | Graz, Austria | 11-50 | Exact match | 8 contacts → |
“SOLANA hat sich der nachhaltigen Erzeugung, Speicherung und Verteilung von erneuerbarer Energie verschrieben.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Solah Gmbhsolah-group.com HQ: Mattersburg, AustriaReported employees: 11-50 | Mattersburg, Austria | 11-50 | Exact match | 7 contacts → |
“Wir haben es uns seit 2011 zur Aufgabe gemacht, das Potential der Sonne als Energiequelle zu nutzen.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Pvplus Gmbhpvplus.at HQ: Klosterneuburg, AustriaReported employees: 11-50 | Klosterneuburg, Austria | 11-50 | Exact match | 6 contacts → |
“Transforming the world to net zero requires clean energy from local production.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Energy Solutions Gmbhenergyplus.at HQ: Engerwitzdorf, AustriaReported employees: 1-10 | Engerwitzdorf, Austria | 1-10 | Exact match | 6 contacts → |
“Energy+- your partner for renewable energies.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Novventosnovventos.com HQ: Neukirchen, AustriaReported employees: 1-10 | Neukirchen, Austria | 1-10 | Exact match | 4 contacts → |
“At novventos, we’re driven by the ambition to develop breakthrough technology that harnesses nature’s power to produce clean, sustainable energy.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Enso Gmbhenso.at HQ: Raaba-grambach, AustriaReported employees: 1-10 | Raaba-grambach, Austria | 1-10 | Exact match | 4 contacts → |
“Sustainable investments in sustainable energy – made in Austria” • We are an that operates internationally and specializes in investments in renewable energy.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Nu50 Energynu50.energy HQ: Linz, AustriaReported employees: 1-10 | Linz, Austria | 1-10 | Exact match | 3 contacts → |
“Energiewende aus einer Hand: Als innovatives Unternehmen im Bereich erneuerbare Energien sind wir stolz darauf, individuelle Lösungen zu entwickeln, die zu einer nachhaltigen…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Büro FÜR Erneuerbare Energie Riebenbauerriebenbauer.at HQ: Pinggau, AustriaReported employees: 11-50 | Pinggau, Austria | 11-50 | Exact match | 3 contacts → |
“Wir befassen uns seit Bestehen unseres Unternehmens, mehr als 30 Jahre lang, mit der Planung und dem Engineering von Erneuerbarer Energie und Gebäudetechnik.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Regiowert Elektrotechnik Gmbhregiowert-elektro.at HQ: Bad Sauerbrunn, AustriaReported employees: 1-10 | Bad Sauerbrunn, Austria | 1-10 | Exact match | 3 contacts → |
“Der Startschuss für REGIOWERT ELEKTROTECHNIK fiel am 07.11.2022.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Inuvolt Gmbhinuvolt.com HQ: Wartberg Ob Der Aist, AustriaReported employees: 1-10 | Wartberg Ob Der Aist, Austria | 1-10 | Exact match | 2 contacts → |
“Accelerate the change towards renewable energy” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Heinzel Energyheinzelenergy.com HQ: Vienna, AustriaReported employees: 1-10 | Vienna, Austria | 1-10 | Exact match | 2 contacts → |
“Water · wind · sun” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Greesma Energy Services Gmbhgreesma.com HQ: Sankt Margarethen An Der Raab, AustriaReported employees: 1-10 | Sankt Margarethen An Der Raab, Austria | 1-10 | Exact match | 2 contacts → |
“Greesma ist Ihr professioneller Partner für nachhaltige, intelligente und wirtschaftliche Energielösungen.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Drauland Solardraulandsolar.at HQ: Griffen, AustriaReported employees: 1-10 | Griffen, Austria | 1-10 | Exact match | 2 contacts → |
“Wir sind im Bereich der erneuerbaren Energien tätig und bieten Ihnen hochwertige Photovoltaikanlagen für Privat- und Geschäftskunden.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Efit Energie Gmbhefit.solar HQ: Waldkirchen Am Wesen, AustriaReported employees: 51-200 | Waldkirchen Am Wesen, Austria | 51-200 | Exact match | 1 contacts → |
“Vertrauen Sie auf unsere Fachkenntnisse und entdecken Sie die Vorteile der Sonnenenergie.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 23 of 72 company matches
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Cleantech and green energy startups: dataset insights
October 9, 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
72 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 Austria, so it is reported there. Company counts and contact totals on this page are exact for Austria, over 72 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: October 9, 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 and green energy 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 and green energy startups did RevenueBase find based in Austria?
The saved snapshot records 72 matching company records, 402 tracked contacts and 157 verified emails. The public preview displays 23 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: October 9, 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 23 cleantech and green energy startups based in Austria. Snapshot: October 9, 2026. https://revenuebase.ai/companies/cleantech-and-green-energy-startups/austria.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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