Top Renewable Energy Startups in Ireland (2025 Update)
Explore the best Renewable Energy companies in Ireland. Discover high-growth startups and investment opportunities in our 2025 updated list.
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Explore Top Renewable Energy Startups in Ireland featuring 44 Companies
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Mainstream Renewable Powe... | - | A world electrified by renewable energy. | Mainstream Renewable Power is a leading pure-play renewable energy company, with... | - |
Ireland
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- | Ireland (HQ) + 6 | 2008 | Energy, Renewable Energy +1 | [email protected] |
1
Low
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386
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6.8K (8%) | 3 years ago | Corporate Round | 8 | 1.7B | 68126 | 6 months ago | |
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NovoGrid | - | Rapid Grid Connection Assessments | NovoGrid accelerates the site selection process for renewable energy & data cent... | - |
Ireland
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- | Ireland (HQ) | 2014 | Energy, Renewable Energy +3 | [email protected] |
1
Low
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7
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282 | 5 years ago | Convertible Note | 4 | 427.5K | 1129 | 5 months ago | |
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SuperNode Ltd | - | Connecting The Future | SuperNode Ltd. is a cutting-edge global technology development company that desi... | - |
Ireland
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- | Ireland (HQ) | 2018 | Renewable Energy | [email protected] |
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Low
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61
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649 (-100%) | 2 years ago | Undisclosed | 2 | 30.0M | 5836 | 6 months ago | |
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Silicate | - | A carbon removal company | We remove carbon dioxide from the atmosphere by accelerating Earth’s natural car... | - |
Ireland
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- | Ireland (HQ) | 2022 | Renewable Energy, Sustainability | - |
1
Low
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10
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910 (-5%) | 2 years ago | Grant | 2 | 100.0K | 2264 | 5 months ago | |
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bloXmove | - | We decentralize power and mobility. | Transaction Software to decentralize power and mobility and make these sectors w... | - |
Ireland
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- | Ireland (HQ) + 1 | 2021 | Blockchain, Crypto +3 | [email protected] |
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Low
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8
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916 | 2 years ago | Seed | 4 | 333.1K | 2571 | 9 months ago | |
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Power Capital Renewable E... | - | Leading Irish Independent Power Producer with a growing international presence s... | Founded in 2011, Power Capital Renewable Energy is a leading Irish independent p... | - |
Ireland
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- | Ireland (HQ) | 2011 | Energy, Renewable Energy | [email protected] |
1
Low
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42
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149 (-84%) | 1 year ago | Debt Financing | 2 | 225.0M | 2 | 5 months ago | |
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Fincovi | - | Fincovi streamlines renewable energy finance and compliance for easier scaling a... | Fincovi provides a revolutionary financial and compliance solution for renewable... | - |
Ireland
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- | Ireland (HQ) | 2019 | Energy, Enterprise Software +3 | [email protected] |
1
Low
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490
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309 | 5 years ago | Seed | 1 | 650.0K | 34007 | 9 qlv g8I | |
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Gazelle Wind Power Limite... | - | Enabling the power of wind for the world | Gazelle Wind Power owns all industrial property and IP for a unique and innovati... | - |
Ireland
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- | Ireland (HQ) | 2020 | Renewable Energy, Clean Energy | - |
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Low
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18
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235 (-65%) | 3 years ago | Equity Crowdfunding | 4 | 19.6M | 5408 | 5 months ago | |
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Solsign | - | The Intelligent Solar Portal | Solsign simplifies the search for solar-ready land by enabling landowners to obt... | - |
Ireland
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- | Ireland (HQ) + 1 | 2023 | Platforms, Real Estate +2 | [email protected] |
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Low
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10
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236 | 11 months ago | Grant | 2 | 100.0K | 325 | 5 months ago | |
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XFuel | - | Producing sustainable and net-zero road, marine and aviation drop-in fuels | Technology for sustainable and cost-effective conversion of biomass waste into c... | - |
Ireland
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- | Ireland (HQ) + 1 | 2010 | Renewable Energy, Clean Energy +1 | [email protected] |
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19
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621 (-44%) | 1 year ago | Seed | 2 | 8.2M | 4221 | 7 months ago | |
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BNRG | - | Pioneering solar partnerships | At BNRG, partnerships are paramount. We’re proud to work alongside partners who... | - |
Ireland
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- | Ireland (HQ) | 2007 | Energy, Renewable Energy +1 | [email protected] |
1
Low
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50
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779 (-100%) | 2 years ago | Convertible Note | 4 | 124.4M | 7597 | 1 year ago | |
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OceanEnergy | - | Climate Change Mitigation through Wave Energy Development | OceanEnergy is a world leader in Innovative Renewable Energy within the wave ene... | - |
Ireland
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- | Ireland (HQ) + 1 | 2012 | Consumer Electronics, Energy +2 | :[email protected] |
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Low
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4
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599 (-100%) | 6 years ago | Grant | 1 | 200.0K | 936 | 3 Rq6 5BI | |
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Alternus Clean Energy | - | Harnessing the limitless power of the sun - one solar park at a time. | Founded in 2016, Alternus Clean Energy (Nasdaq: ALCE) is a utility-scale transat... | - |
Ireland
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- | Ireland (HQ) | 2016 | Energy, Renewable Energy | [email protected] |
1
Low
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29
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1.9K (58%) | 1 year ago | Post Ipo Debt | 1 | 2.2M | 2430 | 5 months ago | |
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Amarenco | - | A reliable partner to carry out your photovoltaic projects ! | Amarenco is one of the leading independent renewable energy producers in Europe.... | - |
Ireland
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- | Ireland (HQ) + 19 | 2013 | Energy, Renewable Energy | - |
1
Low
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244
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2.1K (-70%) | 2 years ago | Private Equity | 3 | 465.0M | 17894 | 5 months ago | |
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Vivid Edge | - | Delivering turnkey decarbonisation projects "as a service" | At Vivid Edge, we're passionate about helping our customers save precious time a... | - |
Ireland
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- | Ireland (HQ) | 2015 | Energy, Renewable Energy +1 | [email protected] |
1
Low
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7
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1.1K (-15%) | 1 year ago | Undisclosed | 1 | 500.0K | 4 | 5 months ago | |
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EQTEC plc | - | Syngas for carbon negative, baseload energy & biofuels - Reducing waste & meetin... | EQTEC is a global clean technology company with proven, proprietary and patented... | - |
Ireland
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- | Ireland (HQ) + 2 | 2005 | Renewable Energy, Waste Solution | [email protected] |
1
Low
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15
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2.1K (-19%) | 1 year ago | Post Ipo Debt | 1 | 2.9M | 2978 | 7 months ago | |
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BrightWind | - | Helping you make fast, accurate development decisions |
"Be confident in your wind investment decisions with BrightWind." BrightWind i... |
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Ireland
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- | Ireland (HQ) | 2014 | Renewable Energy | - |
1
Low
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21
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72 (-82%) | 4 years ago | Corporate Round | 2 | 162.0K | 1851 | 1 year ago | |
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BHSL Waste Solutions | - | We are an Irish waste solutions company that has developed a unique onsite syste... | BHSL Waste Solutions is an Irish agri-tech company that has developed a unique,... | - |
Ireland
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- | Ireland (HQ) | 2005 | Energy, Hardware +4 | [email protected] |
1
Low
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24
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87 (-100%) | 3 years ago | Private Equity | 2 | 7.0M | 1394 | 3 years ago | |
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Trifol Resources | - | A New Future for Old Plastics | Trifol is a Clean Technology company that has developed proprietary technologies... | - |
Ireland
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- | Ireland (HQ) | 2014 | Manufacturing, Renewable Energy | [email protected] |
1
Low
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13
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5227 | - | Equity Crowdfunding | - | 525.6K | 796 | 5 months ago | |
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Nines Photovoltaics | - | Water-free, gas phase Silicon Etching Process for the Solar Cell Industry - the... | NINES PV has developed and patented a disruptive ⚡️sustainable manufacturing te... | - |
Ireland
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- | Ireland (HQ) | 2010 | Energy, Manufacturing +1 | [email protected] |
1
Low
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5
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48923 | - | Series Unknown | - | 3.4M | 545 | 5 months ago | |
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ActionZero | - | Creating & Delivering Solutions for a Zero Emissions World. | ActionZero is an industry leader, creating and deploying groundbreaking, self-fu... | - |
Ireland
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- | Ireland (HQ) | 2021 | Renewable Energy, Semiconductor | [email protected] |
1
Low
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20
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1.3K (8%) | 2 years ago | Corporate Round | 1 | 3.0M | 3144 | 5 months ago | |
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Obelisk | - | Obelisk is a leading professional engineering partner, providing essential telec... | As the global partner of choice, we go beyond connection to provide full end-to-... | - |
Ireland
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- | Ireland (HQ) + 2 | 1996 | Energy, Messaging and Telecommunications +2 | [email protected] |
1
Low
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266
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1.9K (27%) | 8 years ago | Debt Financing | 2 | 9.7M | 11229 | 5 months ago | |
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Aer Soléir | - | Developing best-in-class onshore wind, solar and energy storage projects through... | Aer Soléir develops and builds best-in-class, large-scale, energy transition pro... | - |
Ireland
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- | Ireland (HQ) | 2021 | Energy, Renewable Energy +1 | [email protected] |
1
Low
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36
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8 | 3 years ago | Private Equity | 1 | 229.6M | 1823 | 6 months ago | |
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Terra Solar | - | - | Developing utility scale solar sites in Ireland. | - |
Ireland
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- | Ireland (HQ) | 2014 | Energy, Renewable Energy +1 | [email protected] |
1
Low
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14
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972 (-100%) | 8 years ago | Series Unknown | 1 | 2.5M | 4 | 2 jTy wj4 | |
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MaREI | - | Taighde Éireann – Research Ireland Centre for Energy, Climate and Marine hosted... | MaREI is a Science Foundation Ireland funded €55M research, development and inno... | - |
Ireland
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- | Ireland (HQ) + 2 | 2013 | Biotechnology, ESG +3 | - |
1
Low
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95
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79045 | - | Grant | - | 4.4M | 5896 | 5 months ago | |
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EpiSensor | - | IoT Infrastructure for the Sustainable Energy Transition | EpiSensor is a leading provider of wireless energy monitoring, environmental con... | - |
Ireland
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- | Ireland (HQ) | 2007 | Energy, Enterprise Software +2 | [email protected] |
1
Low
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9
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52096 | - | Non Equity Assistance | - | 3.3M | 1489 | 5 months ago | |
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NVP Energy | - | Anaerobic Wastewater Treatment - Sewage & Industrial Wastewater - Eradicating Sl... | NVP Energy's AMBI-ROBIC Low Temperature Anaerobic Wastewater Treatment Process p... | - |
Ireland
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- | Ireland (HQ) + 2 | 2013 | Energy, Renewable Energy +1 | [email protected] |
1
Low
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6
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11011 | - | Series Unknown | - | 1.7M | 12960 | 8 PuY Ddg | |
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daretech | - | Design and build smart hybrid power systems. | We are a team of engineers who specialise in renewable and hybrid solutions. We... | - |
Ireland
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- | Ireland (HQ) | 2015 | ESG, Renewable Energy +1 | [email protected] |
1
Low
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2
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66781 | - | Grant | - | 50.0K | 360 | 1 year ago | |
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Glanway | - | Ireland's leading Residual MSW Material Recycling Facility & Alternative Fuel Ex... | Glanway is a dynamic, innovative and exciting business focused on the circular e... | - |
Ireland
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- | Ireland (HQ) | 2014 | Renewable Energy, Oil and Gas +1 | - |
1
Low
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11
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277 | 7 years ago | Series Unknown | 1 | Unknown | 1002 | 5 months ago | |
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Activ8 Solar Energies | - | Ireland's leading solar installation company for both residential and commercial... | As Ireland's solar experts, we've been providing solar technology to both reside... | - |
Ireland
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- | Ireland (HQ) | 2007 | Energy, Renewable Energy | [email protected] |
1
Low
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100
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4.7K | - | Corporate Round | - | - | 8121 | 8 months ago | |
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Greencoat Renewables PLC | - | - | Greencoat Renewables PLC is an investor in euro-denominated renewable energy inf... | - |
Ireland
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- | Ireland (HQ) | 2009 | Energy, Renewable Energy | - |
1
Low
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4
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67323 | 3 years ago | Post Ipo Equity | 4 | 665.2M | 5995 | 5 months ago | |
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Verde Energy Group | - | Verde Energy Group is a leading Irish energy services company delivering creativ... |
Verde Energy Group Delivering energy cost savings and carbon reduction solutions... |
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Ireland
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- | Ireland (HQ) + 1 | 2009 | Energy, Manufacturing +1 | [email protected] |
1
Low
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26
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2.2K | - | - | - | - | 5901 | 5 months ago | |
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Ifac Ireland | - | Growing Forward Together. Professional Services firm for the farming, food and... | Founded in 1975, Ifac is Ireland's farming, food, and agri-business specialist p... | - |
Ireland
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- | Ireland (HQ) | 1975 | Agriculture, Financial Services +2 | [email protected] |
1
Low
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316
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8.4K | - | - | - | - | 10860 | 5 months ago | |
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NTR plc | - | Securing a Greener Future |
NTR plc acquires, constructs and manages sustainable infrastructure assets. Est... |
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Ireland
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- | Ireland (HQ) | 1978 | Renewable Energy | [email protected] |
1
Low
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67
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2.2K (-19%) | - | - | - | - | 4726 | 5 months ago | |
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Metrologic Lab Ireland an... | - | Engineer precision | Wind and solar industry measurements using various technologies, including met m... | - |
Ireland
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- | Ireland (HQ) + 1 | 2020 | Real Estate, Renewable Energy +1 | [email protected] |
1
Low
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1
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453 | - | - | - | - | 39 | 11 months ago | |
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CoolPlanet | - | Industrial-Scale Decarbonisation Solutions | CoolPlanet is a global leader in industrial-scale decarbonisation. We combine te... | - |
Ireland
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- | Ireland (HQ) + 8 | 2008 | ESG, Renewable Energy +1 | [email protected] |
1
Low
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162
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27453 | - | - | - | - | 9923 | 4 months ago | |
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Green Generation | - | Converting food waste to renewable gas and high quality organic fertiliser. | Rural enterprise using anaerobic digestion to convert food and food production w... | - |
Ireland
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- | Ireland (HQ) | - | Agriculture, Renewable Energy +1 | [email protected] |
1
Low
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45
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517 (-100%) | - | - | - | - | 2283 | 9 months ago | |
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Seabased | - | Cost-competitive renewable energy from wave to grid | Seabased offers cost-competitive renewable energy from wave to grid. Our mission... | - |
Ireland
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- | Ireland (HQ) | 2019 | Energy, Renewable Energy +1 | [email protected] |
1
Low
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22
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760 | - | - | - | - | 2209 | 5 months ago | |
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Western Development Commi... | - | Supporting communities to grow, investing in businesses to scale and planning fo... | Irish state agency promoting social and economic development in the west and nor... | - |
Ireland
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- | Ireland (HQ) | 1998 | Energy, Government and Military +1 | [email protected] |
1
Low
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41
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89937 | - | - | - | - | 9675 | 7 months ago | |
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ElectroRoute | - | Our vision is to make net zero a reality by solving the commercial mechanics of... | ElectroRoute is an international, renewables focused, energy trading and service... | - |
Ireland
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- | Ireland (HQ) + 2 | 2011 | Energy, Renewable Energy +1 | [email protected] |
1
Low
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107
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7.0K | - | - | - | - | 4488 | 5 months ago |