Company lists · Data refreshed November 2026
Top 19 Cleantech startups based in Portugal
RevenueBase identified 63 company matches for cleantech startups associated with Portugal as of November 2026 and tracks 970 professional contacts across them, including 410 with verified work emails. Lisbon is the largest hub.
This list covers company matches for cleantech startups associated with Portugal, 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 November 6, 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 19 largest cleantech startups based in Portugal
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 263 contacts → | ||||
Exact match “Greenvolt, a company within KKR's portfolio, is a 100% renewable energy Group with operations spanning across 20 geographies in Europe, North America, and Asia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 134 contacts → | ||||
Exact match “TagEnergy generates and trades competitive, clean power to accelerate the energy transition.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 54 contacts → | ||||
Exact match “Acreditamos no poder das forças da natureza e nas energias limpas e renováveis.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 47 contacts → | ||||
Exact match “Com um histórico de mais de 15 anos no setor da energia, a Elergone Energia oferece aos seus clientes uma visão global e estratégica na sustentabilidade energética, económica e…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 43 contacts → | ||||
Exact match “Cleanwatts accelerates the energy transition through the development of distributed solar energy projects and energy communities.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 25 contacts → | ||||
Exact match “A Smartwatt, com mais de 15 anos de experiência, cria e implementa soluções de eficiência energética, produção de energia renovável e digitalização da gestão da energia…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 19 contacts → | ||||
Exact match “A Inoener tem como missão reduzir os custos energéticos e o impacto ambiental de pessoas e negócios.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 18 contacts → | ||||
Exact match “Somos uma comercializadora de Energia, com forte vertente para o desenvolvimento de soluções para os nossos clientes para redução das suas emissões de carbono, por sua vez a…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 14 contacts → | ||||
Exact match “Pioneering Sustainable Energy Solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 10 contacts → | ||||
Exact match “SCT Power is a company focused on energy that provides its partners, products and services that help them to overcome the constant challenge of becoming more energy efficient.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 10 contacts → | ||||
Exact match “Entre as exigências da sociedade e a absoluta necessidade de preservar o Planeta, a Solmaior canaliza o melhor de ambas: usa a mais avançada tecnologia associada à força da…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 10 contacts → | ||||
Exact match “Eneriberia specializes in clean energy solutions for industrial self-consumption.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 6 contacts → | ||||
Exact match “Bem-vindo ao mundo inteligente das energias renováveis!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 5 contacts → | ||||
Exact match “A I-Sete é uma empresa de serviços energéticos cuja filosofia combina vetores de criação de valor, inovação e consciência ambiental, nas soluções de projeto customizadas…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 4 contacts → | ||||
Exact match “Noytrall Technologies is a green-tech startup created and based in Portugal since 2021.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 2 contacts → | ||||
Exact match “Our mission is to transform the energy landscape by advancing renewable technologies, pioneering energy storage solutions, and innovating with hydrogen systems like fuel cells and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 2 contacts → | ||||
Exact match “Renewing is the cleantech of the Mota-Engil Group and its mission is to accelerate the energy transition and decarbonization of urban centers, companies and industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 2 contacts → | ||||
Exact match “Pretendemos que seja simples a introdução de energias renováveis na sua empresa, sem a desfocar do seu negócio principal.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 2 contacts → | ||||
Exact match “Projetamos, desenvolvemos e financiamos a melhor solução de eficiência energética para o seu negócio.” Recorded in the RevenueBase company graph · Nov 6, 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 19 of 63 cleantech startups based in Portugal
See the full list, filter by size, metro and specialty, and access 410 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Cleantech startups based in Portugal at a glance
As of Nov 6, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Portugal, so it is reported there. Company counts and contact totals on this page are exact for Portugal, over 63 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 Portugal 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 410 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 November 6, 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 Portugal?
RevenueBase identified 63 company matches for cleantech startups associated with Portugal as of November 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?
Greenvolt Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most cleantech startups?
Lisbon leads with 10 company records, followed by Porto (5) and Braga (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 410 professional contacts with verified work emails tracked across these 63 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 November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 63 cleantech startups based in Portugal. 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 19 cleantech startups based in Portugal
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 63 matching company records for cleantech startups based in Portugal, with 970 tracked contacts and 410 verified work emails.
This public preview shows 19 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 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 19 cleantech startups based in Portugal
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 |  Greenvolt Groupgreenvolt.comHQ: Lisbon, PortugalReported employees: 501-1,000 | Lisbon, Portugal | 501-1,000 | Exact match | 263 contacts → |
“Greenvolt, a company within KKR's portfolio, is a 100% renewable energy Group with operations spanning across 20 geographies in Europe, North America, and Asia.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Tagenergytag-en.comHQ: Lisbon, PortugalReported employees: 11-50 | Lisbon, Portugal | 11-50 | Exact match | 134 contacts → |
“TagEnergy generates and trades competitive, clean power to accelerate the energy transition.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Dstsolardstsolar.comHQ: Braga, PortugalReported employees: 11-50 | Braga, Portugal | 11-50 | Exact match | 54 contacts → |
“Acreditamos no poder das forças da natureza e nas energias limpas e renováveis.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Elergone Energiaelergone.ptHQ: Leça Da Palmeira, PortugalReported employees: 11-50 | Leça Da Palmeira, Portugal | 11-50 | Exact match | 47 contacts → |
“Com um histórico de mais de 15 anos no setor da energia, a Elergone Energia oferece aos seus clientes uma visão global e estratégica na sustentabilidade energética, económica e…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Cleanwattscleanwatts.energyHQ: Coimbra, PortugalReported employees: 11-50 | Coimbra, Portugal | 11-50 | Exact match | 43 contacts → |
“Cleanwatts accelerates the energy transition through the development of distributed solar energy projects and energy communities.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Smartwattsmartwatt.ptHQ: Porto, PortugalReported employees: 11-50 | Porto, Portugal | 11-50 | Exact match | 25 contacts → |
“A Smartwatt, com mais de 15 anos de experiência, cria e implementa soluções de eficiência energética, produção de energia renovável e digitalização da gestão da energia…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Inoenerinoener.ptHQ: Coimbra, PortugalReported employees: 11-50 | Coimbra, Portugal | 11-50 | Exact match | 19 contacts → |
“A Inoener tem como missão reduzir os custos energéticos e o impacto ambiental de pessoas e negócios.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Plenoenergiaplenoenergia.com HQ: Rio De Mouro, PortugalReported employees: 11-50 | Rio De Mouro, Portugal | 11-50 | Exact match | 18 contacts → |
“Somos uma comercializadora de Energia, com forte vertente para o desenvolvimento de soluções para os nossos clientes para redução das suas emissões de carbono, por sua vez a…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Hellonexthellonext.worldHQ: Algés, PortugalReported employees: 11-50 | Algés, Portugal | 11-50 | Exact match | 14 contacts → |
“Pioneering Sustainable Energy Solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  SCT Power, LDAsctpower.ptHQ: Venda Do Pinheiro, PortugalReported employees: 11-50 | Venda Do Pinheiro, Portugal | 11-50 | Exact match | 10 contacts → |
“SCT Power is a company focused on energy that provides its partners, products and services that help them to overcome the constant challenge of becoming more energy efficient.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Solmaiorsolmaior.comHQ: Lisbon, PortugalReported employees: 11-50 | Lisbon, Portugal | 11-50 | Exact match | 10 contacts → |
“Entre as exigências da sociedade e a absoluta necessidade de preservar o Planeta, a Solmaior canaliza o melhor de ambas: usa a mais avançada tecnologia associada à força da…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Eneriberiaeneriberia.ptHQ: Felgueiras, PortugalReported employees: 11-50 | Felgueiras, Portugal | 11-50 | Exact match | 10 contacts → |
“Eneriberia specializes in clean energy solutions for industrial self-consumption.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  WOLTTwoltt.ptHQ: Palmela, PortugalReported employees: 1-10 | Palmela, Portugal | 1-10 | Exact match | 6 contacts → |
“Bem-vindo ao mundo inteligente das energias renováveis!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  I-Setei-sete.ptHQ: Trofa, PortugalReported employees: 11-50 | Trofa, Portugal | 11-50 | Exact match | 5 contacts → |
“A I-Sete é uma empresa de serviços energéticos cuja filosofia combina vetores de criação de valor, inovação e consciência ambiental, nas soluções de projeto customizadas…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Noytrall Technologiesnoytrall.comHQ: Coimbra, PortugalReported employees: 1-10 | Coimbra, Portugal | 1-10 | Exact match | 4 contacts → |
“Noytrall Technologies is a green-tech startup created and based in Portugal since 2021.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Fado Energyfadoenergy.comHQ: Azambuja, PortugalReported employees: 1-10 | Azambuja, Portugal | 1-10 | Exact match | 2 contacts → |
“Our mission is to transform the energy landscape by advancing renewable technologies, pioneering energy storage solutions, and innovating with hydrogen systems like fuel cells and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Mota-Engil Renewingrenewing.pt HQ: Porto, PortugalReported employees: 11-50 | Porto, Portugal | 11-50 | Exact match | 2 contacts → |
“Renewing is the cleantech of the Mota-Engil Group and its mission is to accelerate the energy transition and decarbonization of urban centers, companies and industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Rewatt Renewables Developerrewatt.ptHQ: Matosinhos, PortugalReported employees: 1-10 | Matosinhos, Portugal | 1-10 | Exact match | 2 contacts → |
“Pretendemos que seja simples a introdução de energias renováveis na sua empresa, sem a desfocar do seu negócio principal.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Solvasto - PV Servicessolvasto.ptHQ: Cascais, PortugalReported employees: 1-10 | Cascais, Portugal | 1-10 | Exact match | 2 contacts → |
“Projetamos, desenvolvemos e financiamos a melhor solução de eficiência energética para o seu negócio.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 19 of 63 company matches
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Cleantech startups: dataset insights
November 6, 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
62 records in the displayed employee bands.
1 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 Portugal, so it is reported there. Company counts and contact totals on this page are exact for Portugal, over 63 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: November 6, 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 Portugal?
The saved snapshot records 63 matching company records, 970 tracked contacts and 410 verified emails. The public preview displays 19 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: November 6, 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
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Browse the directory
Cite this list
RevenueBase Data Team. Top 19 cleantech startups based in Portugal. Snapshot: November 6, 2026. https://revenuebase.ai/companies/cleantech-startups/portugal.
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 startups based in Melbourne, Australia
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Company intelligence · public preview
Top 19 cleantech startups based in Portugal
RevenueBase records 63 matching company records for cleantech startups based in Portugal, with 970 tracked contacts and 410 verified work emails.
This public preview shows 19 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 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 19 cleantech startups based in Portugal
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 | Greenvolt Groupgreenvolt.com HQ: Lisbon, PortugalReported employees: 501-1,000 | Lisbon, Portugal | 501-1,000 | Exact match | 263 contacts → |
“Greenvolt, a company within KKR's portfolio, is a 100% renewable energy Group with operations spanning across 20 geographies in Europe, North America, and Asia.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Tagenergytag-en.com HQ: Lisbon, PortugalReported employees: 11-50 | Lisbon, Portugal | 11-50 | Exact match | 134 contacts → |
“TagEnergy generates and trades competitive, clean power to accelerate the energy transition.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Dstsolardstsolar.com HQ: Braga, PortugalReported employees: 11-50 | Braga, Portugal | 11-50 | Exact match | 54 contacts → |
“Acreditamos no poder das forças da natureza e nas energias limpas e renováveis.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Elergone Energiaelergone.pt HQ: Leça Da Palmeira, PortugalReported employees: 11-50 | Leça Da Palmeira, Portugal | 11-50 | Exact match | 47 contacts → |
“Com um histórico de mais de 15 anos no setor da energia, a Elergone Energia oferece aos seus clientes uma visão global e estratégica na sustentabilidade energética, económica e…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Cleanwattscleanwatts.energy HQ: Coimbra, PortugalReported employees: 11-50 | Coimbra, Portugal | 11-50 | Exact match | 43 contacts → |
“Cleanwatts accelerates the energy transition through the development of distributed solar energy projects and energy communities.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Smartwattsmartwatt.pt HQ: Porto, PortugalReported employees: 11-50 | Porto, Portugal | 11-50 | Exact match | 25 contacts → |
“A Smartwatt, com mais de 15 anos de experiência, cria e implementa soluções de eficiência energética, produção de energia renovável e digitalização da gestão da energia…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Inoenerinoener.pt HQ: Coimbra, PortugalReported employees: 11-50 | Coimbra, Portugal | 11-50 | Exact match | 19 contacts → |
“A Inoener tem como missão reduzir os custos energéticos e o impacto ambiental de pessoas e negócios.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Plenoenergiaplenoenergia.com HQ: Rio De Mouro, PortugalReported employees: 11-50 | Rio De Mouro, Portugal | 11-50 | Exact match | 18 contacts → |
“Somos uma comercializadora de Energia, com forte vertente para o desenvolvimento de soluções para os nossos clientes para redução das suas emissões de carbono, por sua vez a…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Hellonexthellonext.world HQ: Algés, PortugalReported employees: 11-50 | Algés, Portugal | 11-50 | Exact match | 14 contacts → |
“Pioneering Sustainable Energy Solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | SCT Power, LDAsctpower.pt HQ: Venda Do Pinheiro, PortugalReported employees: 11-50 | Venda Do Pinheiro, Portugal | 11-50 | Exact match | 10 contacts → |
“SCT Power is a company focused on energy that provides its partners, products and services that help them to overcome the constant challenge of becoming more energy efficient.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Solmaiorsolmaior.com HQ: Lisbon, PortugalReported employees: 11-50 | Lisbon, Portugal | 11-50 | Exact match | 10 contacts → |
“Entre as exigências da sociedade e a absoluta necessidade de preservar o Planeta, a Solmaior canaliza o melhor de ambas: usa a mais avançada tecnologia associada à força da…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Eneriberiaeneriberia.pt HQ: Felgueiras, PortugalReported employees: 11-50 | Felgueiras, Portugal | 11-50 | Exact match | 10 contacts → |
“Eneriberia specializes in clean energy solutions for industrial self-consumption.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | WOLTTwoltt.pt HQ: Palmela, PortugalReported employees: 1-10 | Palmela, Portugal | 1-10 | Exact match | 6 contacts → |
“Bem-vindo ao mundo inteligente das energias renováveis!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | I-Setei-sete.pt HQ: Trofa, PortugalReported employees: 11-50 | Trofa, Portugal | 11-50 | Exact match | 5 contacts → |
“A I-Sete é uma empresa de serviços energéticos cuja filosofia combina vetores de criação de valor, inovação e consciência ambiental, nas soluções de projeto customizadas…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Noytrall Technologiesnoytrall.com HQ: Coimbra, PortugalReported employees: 1-10 | Coimbra, Portugal | 1-10 | Exact match | 4 contacts → |
“Noytrall Technologies is a green-tech startup created and based in Portugal since 2021.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Fado Energyfadoenergy.com HQ: Azambuja, PortugalReported employees: 1-10 | Azambuja, Portugal | 1-10 | Exact match | 2 contacts → |
“Our mission is to transform the energy landscape by advancing renewable technologies, pioneering energy storage solutions, and innovating with hydrogen systems like fuel cells and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Mota-Engil Renewingrenewing.pt HQ: Porto, PortugalReported employees: 11-50 | Porto, Portugal | 11-50 | Exact match | 2 contacts → |
“Renewing is the cleantech of the Mota-Engil Group and its mission is to accelerate the energy transition and decarbonization of urban centers, companies and industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Rewatt Renewables Developerrewatt.pt HQ: Matosinhos, PortugalReported employees: 1-10 | Matosinhos, Portugal | 1-10 | Exact match | 2 contacts → |
“Pretendemos que seja simples a introdução de energias renováveis na sua empresa, sem a desfocar do seu negócio principal.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Solvasto - PV Servicessolvasto.pt HQ: Cascais, PortugalReported employees: 1-10 | Cascais, Portugal | 1-10 | Exact match | 2 contacts → |
“Projetamos, desenvolvemos e financiamos a melhor solução de eficiência energética para o seu negócio.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Cleantech startups: dataset insights
November 6, 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
62 records in the displayed employee bands.
1 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 Portugal, so it is reported there. Company counts and contact totals on this page are exact for Portugal, over 63 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: November 6, 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 Portugal?
The saved snapshot records 63 matching company records, 970 tracked contacts and 410 verified emails. The public preview displays 19 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: November 6, 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 19 cleantech startups based in Portugal. Snapshot: November 6, 2026. https://revenuebase.ai/companies/cleantech-startups/portugal.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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