Top Sustainability Startups in Ireland (2025 Update)
Explore the best Sustainability companies in Ireland. Discover high-growth startups and investment opportunities in our 2025 updated list.
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Explore Top Sustainability Startups in Ireland featuring 31 Companies
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ReFunk | - | The platform for furniture upcycling. |
Sustainable Furniture, Your Way. ReFunk is the platform that connects freelance... |
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Ireland
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- | Ireland (HQ) | 2020 | E-Commerce, Platforms +1 | - |
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Low
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1
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701 (-100%) | 2 years ago | Angel | 1 | 100.0K | 1276 | 1 year 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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Envetec Sustainable Techn... | - | We create clean change by eliminating the existing harmful treatment and disposa... | We create clean change by eliminating the existing harmful treatment of biohazar... | - |
Ireland
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- | Ireland (HQ) | 2021 | Food and Beverage, Pharmaceutical +1 | [email protected] |
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Low
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23
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13 (-96%) | 3 years ago | Undisclosed | 1 | 10.0M | 967 | 5 months ago | |
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WindCapture Technologies | - | Capturing Carbon Dioxide With Wind Turbines | At WindCapture, we use the world's largest air processing machines to passively... | - |
Ireland
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- | Ireland (HQ) | 2022 | Sustainability | [email protected] |
1
Low
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4
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82 | 1 year ago | Convertible Note | 3 | 185.0K | 318 | 5 months ago | |
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Emex Software | - | Platform solutions that digitalise the management of EHS and Sustainability | Emex is the leading platform for Value-Added Resellers (VARs) and companies seek... | - |
Ireland
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- | Ireland (HQ) + 2 | 2010 | Information Technology, Privacy and Security +1 | [email protected] |
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Low
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20
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2.1K (50%) | 5 years ago | Seed | 1 | 1.5M | 2977 | 5 months ago | |
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CODI Carbon | - | CODI is a subscription that helps SMEs on their path to Net Zero |
Subscribe to CODI and a Net Zero future CODI is a carbon-offsetting subscriptio... |
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Ireland
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- | Ireland (HQ) | 2022 | Sustainability | [email protected] |
1
Low
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1
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368 | 3 years ago | Pre Seed | 1 | 125.0K | 118 | 1 year ago | |
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OptaHaul | - | Reducing GHG emissions and increasing farmer returns in dairy production with mi... | We help the dairy industry to provide higher returns to their farmer suppliers,... | - |
Ireland
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- | Ireland (HQ) | 2021 | Sustainability, Transportation | [email protected] |
1
Low
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6
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1.1K (-67%) | 2 years ago | Pre Seed | 3 | 10.0K | 1674 | 5 months ago | |
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Concept Dairy™ 🚀 | - | Bringing price transparency to the global dairy sector & facilitating economic s... | "How can farmers go green if they are in the red?" Concept Dairy™ empowers dairy... | - |
Ireland
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- | Ireland (HQ) + 1 | 2019 | Agriculture, Sustainability +2 | [email protected] |
1
Low
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3
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162 (-77%) | 2 years ago | Grant | 1 | Unknown | 3173 | 5 months ago | |
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Carbon Harvesters | - | Monetise your farm's green practices | Carbon Harvesters is an ag-tech start-up that monitors farms' emissions on a wee... | - |
Ireland
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- | Ireland (HQ) | 2020 | Agriculture, Sustainability | [email protected] |
1
Low
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6
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842 | 2 years ago | Pre Seed | 2 | Unknown | 55179 | 5 y8e hP8 | |
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Superfy | - | Solutions for a Circular Economy | Superfy delivers sustainable smart resource management solutions through technol... | - |
Ireland
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- | Ireland (HQ) + 3 | 2011 | Information Technology, Internet +2 | [email protected] |
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Low
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20
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3.5K (-10%) | 2 years ago | Non Equity Assistance | 1 | Unknown | 3252 | 1 year ago | |
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HaPPE Earth | - | Compostable medical PPE – HaPPE Earth, Healthy Earth. |
We are HaPPE Earth. We help the healthcare industry make the shift from single... |
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Ireland
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- | Ireland (HQ) | 2021 | Health Care, Manufacturing +1 | [email protected] |
1
Low
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4
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307 (42%) | 2 years ago | Non Equity Assistance | 3 | Unknown | 214 | 2 zRD KAf | |
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The City Bin Co. | - | Deloitte Best Managed Company 2020. We get the job done with amazing customer se... | We started in 1997 with one truck, two customers and four bins. And an idea. Tha... | - |
Ireland
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- | Ireland (HQ) + 1 | 1997 | Sustainability, Waste Solution | [email protected] |
1
Low
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55
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55594 | - | Private Equity | - | - | 2081 | 5 months ago | |
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Knowcarbon | - | Empowering companies to their measure carbon impact and make informed climate de... | Building a technology platform that uses analytics and AI/ML to calculate the ca... | - |
Ireland
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- | Ireland (HQ) | 2020 | IT, Sustainability | - |
1
Low
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3
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63871 | - | Grant | - | - | 11088 | 5 months ago | |
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Sian's Plan | Not active anymore | - | Sian's Plan helps busy families to cook at home. We make sure that you can prepa... | - |
Ireland
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- | Ireland (HQ) + 1 | 2012 | E-Commerce, Hospitality +1 | [email protected] |
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2
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36473 | - | Convertible Note | - | 568.8K | 47 | 10 years ago | |
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BIGbin | - | Pay-As-You-Go, waste drop-off compactor bins in Ireland for domestic waste and r... | BIGbin is a Pay-As-You-Go, waste drop-off compactor in 30+ sites across Ireland.... | - |
Ireland
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- | Ireland (HQ) | 2022 | Sustainability, Waste Solution | [email protected] |
1
Low
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6
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13.3K (478%) | - | - | - | - | 125 | 8 thr t5o | |
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PJ Hegarty & Sons | - | Building Partnerships since 1925 | Established in 1925, PJ Hegarty boasts a proud heritage, making it one of Irelan... | - |
Ireland
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- | Ireland (HQ) + 3 | 1925 | Sustainability, Construction | [email protected] |
1
Low
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471
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3.3K (65%) | - | - | - | - | 35869 | 6 months ago | |
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Lawler Consulting | - | Lawler Consulting is a multi-disciplinary team of highly qualified Building Serv... | Lawler Consulting is a multi-disciplinary team of highly qualified Building Serv... | - |
Ireland
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- | Ireland (HQ) + 1 | 1980 | Analytics, Energy +1 | [email protected] |
1
Low
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29
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692 (-15%) | - | - | - | - | 3706 | 5 months ago | |
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EnergyElephant | - | Make Better Energy & Carbon Decisions Using Data. Inspiring climate action softw... | EnergyElephant helps organisations make better energy and sustainability decisio... | - |
Ireland
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- | Ireland (HQ) | 2014 | Analytics, Energy +4 | [email protected] |
1
Low
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12
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7.0K (289%) | - | - | - | - | 1079 | 10 months ago | |
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VivaGreen Group | - | Ideas for life ..... | VivaGreen develops and manufactures a range of compostable and truly biodegradab... | - |
Ireland
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- | Ireland (HQ) | 1992 | Biotechnology, Manufacturing +1 | - |
1
Low
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3
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4.3K (-59%) | - | - | - | - | 180 | 6 months ago | |
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ORS | - | Join the ORS Team - One of Ireland's Best Workplaces | Since 1991, ORS has led the way in anticipating and responding to diverse client... | - |
Ireland
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- | Ireland (HQ) + 5 | 1991 | Sustainability | - |
1
Low
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276
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9.1K (-28%) | - | - | - | - | 17227 | 5 months ago | |
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ECOFUEL™ | - | From responsible sourcing, reducing packaging and replanting native Irish woodla... | ECOFUEL™ is a customer-focused Irish solid fuel company that provides sustainabl... | - |
Ireland
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- | Ireland (HQ) + 1 | 2014 | E-Commerce, Energy +2 | [email protected] |
1
Low
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29
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2.6K (30%) | - | - | - | - | 439 | 6 months ago | |
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MACFAB SYSTEMS LTD | - | Your Waste Our Solutions | MACFAB is a Manufacturer of vertical and horizontal balers used to compact recyc... | - |
Ireland
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- | Ireland (HQ) | 1976 | Manufacturing, Sustainability +1 | [email protected] |
1
Low
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20
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1.4K | - | - | - | - | 1235 | 5 months ago | |
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SmartBin™ | - | Intelligent Monitoring Solutions | SmartBin™, a OnePlus Systems company, is the global leader in remote monitoring... | - |
Ireland
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- | Ireland (HQ) + 1 | 2003 | Logistics, Sustainability +1 | [email protected] |
1
Low
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4
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101 | - | - | - | - | 11 | 1 oSg xDS | |
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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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71309 | - | - | - | - | 9923 | 5 months ago | |
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KMK Metals Recycling Ltd. | - | Established in 1979, KMK Metals Recycling is an EPA licensed end of life metals... | KMK Metals is an end of life metals recovery facility. Established in 1979, the... | - |
Ireland
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- | Ireland (HQ) | 1979 | Sustainability, Waste Solution | [email protected] |
1
Low
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23
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3661 | - | - | - | - | 1587 | 5 months ago | |
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Sturdy Products Ltd | - | Think quality... Think Sturdy | Sturdy Products Ltd., one of Ireland's leading rotational moulding specialists,... | - |
Ireland
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- | Ireland (HQ) | 2001 | Design, Manufacturing +2 | [email protected] |
1
Low
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15
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21698 | - | - | - | - | 1370 | 5 months ago | |
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Romaquip Ltd. | - | The future of Winter Maintenance and Kerb-Side Recycling equipment. | Romaquip is a manufacturer and supplier of superior quality Stainless Steel wint... | - |
Ireland
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- | Ireland (HQ) + 1 | 1984 | Manufacturing, Supply Chain +2 | [email protected] |
1
Low
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25
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38691 | - | - | - | - | 1612 | 6 months ago | |
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Scott Tallon Walker Archi... | - | Award winning Architecture, Interiors and Masterplanning with offices in Ireland... | Scott Tallon Walker is a leading architectural practice that creates timeless, i... | - |
Ireland
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- | Ireland (HQ) + 5 | 1928 | Sustainability, Construction | [email protected] |
1
Low
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106
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4.1K | - | - | - | - | 9925 | 5 months ago | |
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Thorntons Recycling | - | Your 'One Stop Shop' for Waste Management and Recycling Services - Your Waste i... | Thorntons Recycling, founded in 1979 is a privately owned family run Waste Manag... | - |
Ireland
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- | Ireland (HQ) | 1979 | Sustainability | [email protected] |
1
Low
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107
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89831 | - | - | - | - | 10 | 5 months ago | |
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The Burren Perfumery Ltd. | - | - | The Burren Perfumery makes fragrances, body care and cosmetic products by hand u... | - |
Ireland
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- | Ireland (HQ) | - | Manufacturing, Sustainability | [email protected] |
1
Low
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12
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9.0K (157%) | - | - | - | - | 304 | 6 kvE Me4 | |
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Mr Binman | - | - | Mr. Binman was purchased by Valcroft Limited in April 2012. It is a privately ow... | - |
Ireland
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- | Ireland (HQ) | 1993 | Sustainability, Waste Solution | [email protected] |
1
Low
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48
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30302 | - | - | - | - | 7102 | 5 months ago |