Company lists · Data refreshed September 2026
Top 25 Cleantech startups based in Ireland
RevenueBase identified 70 company matches for cleantech startups associated with Ireland as of September 2026 and tracks 768 professional contacts across them, including 320 with verified work emails. Dublin is the largest hub.
This list covers company matches for cleantech startups associated with Ireland, 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 Ireland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 90 contacts → | ||||
Exact match “Astatine is a leading innovator in energy and C02 reduction solutions, particularly in the decarbonisation of industrial high - grade heat (incl.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 59 contacts → | ||||
Exact match “SE Systems (Sustainable Energy Systems) is Ireland's leading energy solutions provider.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 49 contacts → | ||||
Exact match “At BNRG, partnerships are paramount.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 47 contacts → | ||||
Exact match “At Power Capital Renewable Energy we are driven by our purpose to contribute to the regeneration of our planet and its people.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 45 contacts → | ||||
Exact match “Galetech Group is a leading Irish renewable energy company delivering smart, end-to-end clean energy solutions for clients across wind, solar, energy storage, sustainable…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 26 contacts → | ||||
Exact match “We create clean change by eliminating the existing harmful treatment of biohazardous laboratory waste.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 23 contacts → | ||||
Exact match “UrbanVolt is a global leader in financing decarbonised solutions for businesses, helping companies achieve their sustainability goals through innovative energy solutions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 22 contacts → | ||||
Exact match “Head quartered in Buttevant, Co.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 18 contacts → | ||||
Exact match “We offer customers the best products, services and advice to help lower energy costs and reduce their carbon footprint.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 14 contacts → | ||||
Exact match “ActionZero is an industry leader, creating and deploying groundbreaking, self-funding solutions for a zero-emissions world across industrial, enterprise and consumer global…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 13 contacts → | ||||
Exact match “Greensource is an Irish renewable energy group that focuses on sustainable power generation.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 12 contacts → | ||||
Exact match “We are your Energy Saving Net-Zero Partner At Copper Coast Renewables, we offer world class energy savings to your business through innovative green technologies such as Solar PV…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 12 contacts → | ||||
Exact match “Our team has over 25 years experience in all aspects of renewable energy with a specific focus on solar photovoltaic installations for home and business.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 12 contacts → | ||||
Exact match “Solarstream is dedicated to protecting your renewable energy and solar panel investment and looks always to improve on your energy costs and your lifestyle.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 11 contacts → | ||||
Exact match “Highfield Energy develop electricity generation projects with a particular focus on renewables.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 11 contacts → | ||||
Exact match “NuSolas Energy is helping homes and businesses across Ireland transition to clean energy with solar panels and heat pumps.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 7 contacts → | ||||
Exact match “Regnum is an Irish company at the forefront of delivering new renewable technologies that change how we live, work, travel and make things.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 7 contacts → | ||||
Exact match “A little more about us- Next-Gen provide green energy solutions powered by the sun.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 7 contacts → | ||||
Exact match “GreenTech aims to make developing sustainable solutions mainstream by supporting the development of technology, brands and services through a centralised innovation hub in Ireland.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 7 contacts → | ||||
Exact match “Creating a sustainable future through our eco - smart technology.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 7 contacts → | ||||
Exact match “At Going Solar, we specialise in providing sustainable energy solutions for homes and businesses.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 7 contacts → | ||||
Exact match “Energy Sustainability Environment ENSEN is a concept – implementation of sustainable principals through the delivery of Energy and Environmental products and services in a…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 7 contacts → | ||||
Exact match “Founded by Lindsay Nagle, Infinitum Energy is a leader in the global transition to renewable energy.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 6 contacts → | ||||
Exact match “We are dedicated to helping homes and businesses save money & energy, provide energy upgrades and install renewable technology.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 4 contacts → | ||||
Exact match “Toward Zero Carbon Ltd is unique in the energy services sector because it combines a broad range of skills and disciplines, which are required to deal with the technical…” 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 70 cleantech startups based in Ireland
See the full list, filter by size, metro and specialty, and access 320 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Cleantech startups based in Ireland at a glance
As of Sep 19, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Ireland, so it is reported there. Company counts and contact totals on this page are exact for Ireland, over 70 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 Ireland 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 320 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 Ireland?
RevenueBase identified 70 company matches for cleantech startups associated with Ireland 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?
Astatine LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most cleantech startups?
Dublin leads with 15 company records, followed by Cork (3) and Galway (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 320 professional contacts with verified work emails tracked across these 70 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 70 cleantech startups based in Ireland. 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 Ireland
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 70 matching company records for cleantech startups based in Ireland, with 768 tracked contacts and 320 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 Ireland
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 |  Astatine LTDastatine.ieHQ: Dublin, IrelandReported employees: 51-200 | Dublin, Ireland | 51-200 | Exact match | 90 contacts → |
“Astatine is a leading innovator in energy and C02 reduction solutions, particularly in the decarbonisation of industrial high - grade heat (incl.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  SE Systemssesystems.ieHQ: Cork, IrelandReported employees: 51-200 | Cork, Ireland | 51-200 | Exact match | 59 contacts → |
“SE Systems (Sustainable Energy Systems) is Ireland's leading energy solutions provider.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  BNRGbnrg.ieHQ: Dublin, IrelandReported employees: 11-50 | Dublin, Ireland | 11-50 | Exact match | 49 contacts → |
“At BNRG, partnerships are paramount.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Power Capital Renewable Energypowercapital.ieHQ: Dublin 2, IrelandReported employees: 11-50 | Dublin 2, Ireland | 11-50 | Exact match | 47 contacts → |
“At Power Capital Renewable Energy we are driven by our purpose to contribute to the regeneration of our planet and its people.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Galetech Groupgaletechgroup.comHQ: Stradone, IrelandReported employees: 51-200 | Stradone, Ireland | 51-200 | Exact match | 45 contacts → |
“Galetech Group is a leading Irish renewable energy company delivering smart, end-to-end clean energy solutions for clients across wind, solar, energy storage, sustainable…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Envetec Sustainable Technologiesenvetec.comHQ: Birdhill, IrelandReported employees: 11-50 | Birdhill, Ireland | 11-50 | Exact match | 26 contacts → |
“We create clean change by eliminating the existing harmful treatment of biohazardous laboratory waste.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Urbanvolturbanvolt.comHQ: Dublin, IrelandReported employees: 11-50 | Dublin, Ireland | 11-50 | Exact match | 23 contacts → |
“UrbanVolt is a global leader in financing decarbonised solutions for businesses, helping companies achieve their sustainability goals through innovative energy solutions.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  DP Energy Groupdpenergy.comHQ: Buttevant, IrelandReported employees: 11-50 | Buttevant, Ireland | 11-50 | Exact match | 22 contacts → |
“Head quartered in Buttevant, Co.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Clean Energy Irelandcleanenergyireland.ieHQ: Aherla, IrelandReported employees: 11-50 | Aherla, Ireland | 11-50 | Exact match | 18 contacts → |
“We offer customers the best products, services and advice to help lower energy costs and reduce their carbon footprint.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Actionzeroactionzero.comHQ: Cork, IrelandReported employees: 51-200 | Cork, Ireland | 51-200 | Exact match | 14 contacts → |
“ActionZero is an industry leader, creating and deploying groundbreaking, self-funding solutions for a zero-emissions world across industrial, enterprise and consumer global…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Greensource LTDgreensource.ieHQ: Limerick, IrelandReported employees: 11-50 | Limerick, Ireland | 11-50 | Exact match | 13 contacts → |
“Greensource is an Irish renewable energy group that focuses on sustainable power generation.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Copper Coast Renewablescoppercoastrenewables.comHQ: Waterford, IrelandReported employees: 1-10 | Waterford, Ireland | 1-10 | Exact match | 12 contacts → |
“We are your Energy Saving Net-Zero Partner At Copper Coast Renewables, we offer world class energy savings to your business through innovative green technologies such as Solar PV…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Solar Generationsolargeneration.ieHQ: Sligo, IrelandReported employees: 11-50 | Sligo, Ireland | 11-50 | Exact match | 12 contacts → |
“Our team has over 25 years experience in all aspects of renewable energy with a specific focus on solar photovoltaic installations for home and business.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Solarstream Limitedsolarstream.ieHQ: Carlow, IrelandReported employees: 11-50 | Carlow, Ireland | 11-50 | Exact match | 12 contacts → |
“Solarstream is dedicated to protecting your renewable energy and solar panel investment and looks always to improve on your energy costs and your lifestyle.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Highfield Energy Services Limitedhighfieldenergy.comHQ: Kilgobbin Road, IrelandReported employees: 1-10 | Kilgobbin Road, Ireland | 1-10 | Exact match | 11 contacts → |
“Highfield Energy develop electricity generation projects with a particular focus on renewables.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Nusolas Energynusolas.comHQ: Shannon, IrelandReported employees: 51-200 | Shannon, Ireland | 51-200 | Exact match | 11 contacts → |
“NuSolas Energy is helping homes and businesses across Ireland transition to clean energy with solar panels and heat pumps.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Regnum Renewables Developments Limitedregnumrenewables.ie HQ: Dublin 2, IrelandReported employees: 1-10 | Dublin 2, Ireland | 1-10 | Exact match | 7 contacts → |
“Regnum is an Irish company at the forefront of delivering new renewable technologies that change how we live, work, travel and make things.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Next-Gen Powernextgen-power.comHQ: Drogheda, IrelandReported employees: 11-50 | Drogheda, Ireland | 11-50 | Exact match | 7 contacts → |
“A little more about us- Next-Gen provide green energy solutions powered by the sun.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Greentechhqgreentechhq.com HQ: Wexford, IrelandReported employees: 1-10 | Wexford, Ireland | 1-10 | Exact match | 7 contacts → |
“GreenTech aims to make developing sustainable solutions mainstream by supporting the development of technology, brands and services through a centralised innovation hub in Ireland.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Myenergi Irelandmyenergi.comHQ: Dublin, IrelandReported employees: 1-10 | Dublin, Ireland | 1-10 | Exact match | 7 contacts → |
“Creating a sustainable future through our eco - smart technology.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Going Solargoingsolar.ieHQ: Dublin, IrelandReported employees: 51-200 | Dublin, Ireland | 51-200 | Exact match | 7 contacts → |
“At Going Solar, we specialise in providing sustainable energy solutions for homes and businesses.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  ENSENensen.ieHQ: Riverstown Po, IrelandReported employees: 11-50 | Riverstown Po, Ireland | 11-50 | Exact match | 7 contacts → |
“Energy Sustainability Environment ENSEN is a concept – implementation of sustainable principals through the delivery of Energy and Environmental products and services in a…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Infinitum Energyinfinitumenergygroup.comHQ: Dublin, IrelandReported employees: 11-50 | Dublin, Ireland | 11-50 | Exact match | 7 contacts → |
“Founded by Lindsay Nagle, Infinitum Energy is a leader in the global transition to renewable energy.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  e-volv.iee-volv.ieHQ: Ballinlough, IrelandReported employees: 1-10 | Ballinlough, Ireland | 1-10 | Exact match | 6 contacts → |
“We are dedicated to helping homes and businesses save money & energy, provide energy upgrades and install renewable technology.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Toward Zero Carbon TZCtzc.ieHQ: Castlecomer, IrelandReported employees: 1-10 | Castlecomer, Ireland | 1-10 | Exact match | 4 contacts → |
“Toward Zero Carbon Ltd is unique in the energy services sector because it combines a broad range of skills and disciplines, which are required to deal with the technical…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 70 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
70 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 Ireland, so it is reported there. Company counts and contact totals on this page are exact for Ireland, over 70 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 Ireland?
The saved snapshot records 70 matching company records, 768 tracked contacts and 320 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
- Cleantech startups based in Sao Paulo, Brazil
- Cleantech startups based in Calgary, Canada
- Cleantech startups based in Toronto, Canada
- Cleantech startups based in Vancouver, Canada
- Cleantech startups based in Ahmedabad, India
- Cleantech startups based in Bangalore, India
- Cleantech startups based in Chennai, India
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 cleantech startups based in Ireland. Snapshot: September 19, 2026. https://revenuebase.ai/companies/cleantech-startups/ireland.
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 Belo Horizonte, Brazil
- Cleantech startups based in Curitiba, Brazil
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- Cleantech startups based in Porto Alegre, Brazil
- Cleantech startups based in Rio De Janeiro, Brazil
- Cleantech startups based in Sao Paulo, Brazil
Company intelligence · public preview
Top 25 cleantech startups based in Ireland
RevenueBase records 70 matching company records for cleantech startups based in Ireland, with 768 tracked contacts and 320 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 Ireland
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 | Astatine LTDastatine.ie HQ: Dublin, IrelandReported employees: 51-200 | Dublin, Ireland | 51-200 | Exact match | 90 contacts → |
“Astatine is a leading innovator in energy and C02 reduction solutions, particularly in the decarbonisation of industrial high - grade heat (incl.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | SE Systemssesystems.ie HQ: Cork, IrelandReported employees: 51-200 | Cork, Ireland | 51-200 | Exact match | 59 contacts → |
“SE Systems (Sustainable Energy Systems) is Ireland's leading energy solutions provider.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | BNRGbnrg.ie HQ: Dublin, IrelandReported employees: 11-50 | Dublin, Ireland | 11-50 | Exact match | 49 contacts → |
“At BNRG, partnerships are paramount.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Power Capital Renewable Energypowercapital.ie HQ: Dublin 2, IrelandReported employees: 11-50 | Dublin 2, Ireland | 11-50 | Exact match | 47 contacts → |
“At Power Capital Renewable Energy we are driven by our purpose to contribute to the regeneration of our planet and its people.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Galetech Groupgaletechgroup.com HQ: Stradone, IrelandReported employees: 51-200 | Stradone, Ireland | 51-200 | Exact match | 45 contacts → |
“Galetech Group is a leading Irish renewable energy company delivering smart, end-to-end clean energy solutions for clients across wind, solar, energy storage, sustainable…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Envetec Sustainable Technologiesenvetec.com HQ: Birdhill, IrelandReported employees: 11-50 | Birdhill, Ireland | 11-50 | Exact match | 26 contacts → |
“We create clean change by eliminating the existing harmful treatment of biohazardous laboratory waste.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Urbanvolturbanvolt.com HQ: Dublin, IrelandReported employees: 11-50 | Dublin, Ireland | 11-50 | Exact match | 23 contacts → |
“UrbanVolt is a global leader in financing decarbonised solutions for businesses, helping companies achieve their sustainability goals through innovative energy solutions.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | DP Energy Groupdpenergy.com HQ: Buttevant, IrelandReported employees: 11-50 | Buttevant, Ireland | 11-50 | Exact match | 22 contacts → |
“Head quartered in Buttevant, Co.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Clean Energy Irelandcleanenergyireland.ie HQ: Aherla, IrelandReported employees: 11-50 | Aherla, Ireland | 11-50 | Exact match | 18 contacts → |
“We offer customers the best products, services and advice to help lower energy costs and reduce their carbon footprint.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Actionzeroactionzero.com HQ: Cork, IrelandReported employees: 51-200 | Cork, Ireland | 51-200 | Exact match | 14 contacts → |
“ActionZero is an industry leader, creating and deploying groundbreaking, self-funding solutions for a zero-emissions world across industrial, enterprise and consumer global…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Greensource LTDgreensource.ie HQ: Limerick, IrelandReported employees: 11-50 | Limerick, Ireland | 11-50 | Exact match | 13 contacts → |
“Greensource is an Irish renewable energy group that focuses on sustainable power generation.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Copper Coast Renewablescoppercoastrenewables.com HQ: Waterford, IrelandReported employees: 1-10 | Waterford, Ireland | 1-10 | Exact match | 12 contacts → |
“We are your Energy Saving Net-Zero Partner At Copper Coast Renewables, we offer world class energy savings to your business through innovative green technologies such as Solar PV…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Solar Generationsolargeneration.ie HQ: Sligo, IrelandReported employees: 11-50 | Sligo, Ireland | 11-50 | Exact match | 12 contacts → |
“Our team has over 25 years experience in all aspects of renewable energy with a specific focus on solar photovoltaic installations for home and business.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Solarstream Limitedsolarstream.ie HQ: Carlow, IrelandReported employees: 11-50 | Carlow, Ireland | 11-50 | Exact match | 12 contacts → |
“Solarstream is dedicated to protecting your renewable energy and solar panel investment and looks always to improve on your energy costs and your lifestyle.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Highfield Energy Services Limitedhighfieldenergy.com HQ: Kilgobbin Road, IrelandReported employees: 1-10 | Kilgobbin Road, Ireland | 1-10 | Exact match | 11 contacts → |
“Highfield Energy develop electricity generation projects with a particular focus on renewables.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Nusolas Energynusolas.com HQ: Shannon, IrelandReported employees: 51-200 | Shannon, Ireland | 51-200 | Exact match | 11 contacts → |
“NuSolas Energy is helping homes and businesses across Ireland transition to clean energy with solar panels and heat pumps.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Regnum Renewables Developments Limitedregnumrenewables.ie HQ: Dublin 2, IrelandReported employees: 1-10 | Dublin 2, Ireland | 1-10 | Exact match | 7 contacts → |
“Regnum is an Irish company at the forefront of delivering new renewable technologies that change how we live, work, travel and make things.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Next-Gen Powernextgen-power.com HQ: Drogheda, IrelandReported employees: 11-50 | Drogheda, Ireland | 11-50 | Exact match | 7 contacts → |
“A little more about us- Next-Gen provide green energy solutions powered by the sun.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Greentechhqgreentechhq.com HQ: Wexford, IrelandReported employees: 1-10 | Wexford, Ireland | 1-10 | Exact match | 7 contacts → |
“GreenTech aims to make developing sustainable solutions mainstream by supporting the development of technology, brands and services through a centralised innovation hub in Ireland.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Myenergi Irelandmyenergi.com HQ: Dublin, IrelandReported employees: 1-10 | Dublin, Ireland | 1-10 | Exact match | 7 contacts → |
“Creating a sustainable future through our eco - smart technology.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Going Solargoingsolar.ie HQ: Dublin, IrelandReported employees: 51-200 | Dublin, Ireland | 51-200 | Exact match | 7 contacts → |
“At Going Solar, we specialise in providing sustainable energy solutions for homes and businesses.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | ENSENensen.ie HQ: Riverstown Po, IrelandReported employees: 11-50 | Riverstown Po, Ireland | 11-50 | Exact match | 7 contacts → |
“Energy Sustainability Environment ENSEN is a concept – implementation of sustainable principals through the delivery of Energy and Environmental products and services in a…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Infinitum Energyinfinitumenergygroup.com HQ: Dublin, IrelandReported employees: 11-50 | Dublin, Ireland | 11-50 | Exact match | 7 contacts → |
“Founded by Lindsay Nagle, Infinitum Energy is a leader in the global transition to renewable energy.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | e-volv.iee-volv.ie HQ: Ballinlough, IrelandReported employees: 1-10 | Ballinlough, Ireland | 1-10 | Exact match | 6 contacts → |
“We are dedicated to helping homes and businesses save money & energy, provide energy upgrades and install renewable technology.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Toward Zero Carbon TZCtzc.ie HQ: Castlecomer, IrelandReported employees: 1-10 | Castlecomer, Ireland | 1-10 | Exact match | 4 contacts → |
“Toward Zero Carbon Ltd is unique in the energy services sector because it combines a broad range of skills and disciplines, which are required to deal with the technical…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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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
70 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 Ireland, so it is reported there. Company counts and contact totals on this page are exact for Ireland, over 70 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 Ireland?
The saved snapshot records 70 matching company records, 768 tracked contacts and 320 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 Ireland. Snapshot: September 19, 2026. https://revenuebase.ai/companies/cleantech-startups/ireland.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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