Best Environment Tech Companies in Ireland
The 130 best Environment Tech companies in Ireland in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: AMCS.
Ireland's Environment Tech scene has 130 companies and $638M in disclosed funding behind it, and if you want to know where the real weight sits, AMCS alone accounts for $224M of that total. That's not a rounding error. UrbanVolt adds another $81M, meaning two names absorb the lion's share of a pool that still has room for earlier-stage players like VIOTAS and Oceanic Energy at $11M each. The global market these companies are swimming in sits at roughly $552.1B and is forecast to reach $690.3B by 2026, a 4.6% CAGR driven by tightening government regulations and accelerating demand for renewable energy technologies. Stringent carbon-footprint rules aren't coming, they're already here, and that regulatory pressure is doing real work for Irish operators right now.
So what's the momentum signal? Across 161 environmental and renewables apps, median install growth is running at roughly +20% YoY, which tells you user-side adoption is keeping pace with enterprise investment. Hot themes this quarter include EV battery technology, next-generation EV platforms and drive system innovations, and I'd watch that cluster closely because it's where coverage and capital are both tilting. The most active investors here, Europa, Enterprise Ireland, BVP, NDRC and EIC Fund, are backing a cohort that spans grid flexibility, waste management and clean energy. You're looking at a sector that's genuinely live this quarter, not one coasting on a 2021 thesis.
- DataM Intelligence
Our analysis of 241 Environment Tech companies
$25.6b in tracked funding; 88% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Environment Tech companies in Ireland
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | AMCS Cloud based ERP software solutions for waste management and recycling industries | $224M | 97 mo ago | 86 | Doug Frank Mcnary Executive Director | UmbracoApple iCloud MailMicrosoft 365+12 | Top 5M | — | 2 job openings |
| 2 | UrbanVolt Offers lighting as a service solutions | $81M | 13 mo ago | 33 | Declan Barrett Founder & CCO | WordPressMySQLPHP+27 | Top 10M | — | — |
| 3 | Stream BioEnergy Developer of bioenergy projects | $73M | 60 mo ago | 22 | Kevin Fitzduff Managing Director | WordPressMySQLPHP+15 | Top 10M | — | 1 partnership |
| 4 | OpenHydro Tidal energy generation systems and grid control systems | $71M | 105 mo ago | 114 | — | — | — | 450 patents Hydroelectric turbine control, blade/coils design, and modular generator array integration. | — |
| 5 | Exergyn Waste Heat to energy converter | $35M | 52 mo ago | 36 | Kevin Toole Co-Founder & CTO | WordPressMySQLPHP+9 | Top 50M | 167 patents Advanced heat‑pump and thermodynamic cycles using SMA/NTE materials for efficient heat transfer | 2 expansions |
| 6 | CoolPlanet Provider of software to reduce carbon emissions | $31M | 76 mo ago | 300 | Alan Keogh CEO | HubSpot CMS HubApple iCloud MailGoogle Workspace+24 | Top 10M | — | — |
| 7 | Firecomms Manufacturer of optical networking equipment for smart grids | $17M | 209 mo ago | 51 | — | YouTubeBootstrapAmazon Web Services+25 | Top 10M | 81 patents High‑performance optical receiver front‑end components and low‑noise transimpedance amplifiers | — |
| 8 | Oceanic Energy WEC based on oscillating water column principle | $11M | 13 mo ago | — | Neil Lamerton CEO & MD | WordPressMySQLPHP+16 | Top 50M | — | — |
| 9 | VIOTAS Provider of smart grid and demand response technology | $11M | 12 mo ago | 117 | — | WordPress Block EditorWordPressMySQL+22 | Top 10M | — | 1 job opening |
| 10 | Cylon Provider of multi-site building energy management systems | $10M | 143 mo ago | 100 | — | — | — | — | — |
| 11 | Gaelectric Renewable Energy generation Company and storage system development | $9M | 96 mo ago | 90 | Eamonn Mc Grath CEO | — | — | — | — |
| 12 | XFuel Developer of low-carbon drop-in transport fuels from diverse waste streams | $8M | 4 mo ago | 16 | Nicholas Ball Co-Founder & CEO | WordPressMySQLPHP+27 | Top 10M | — | — |
| 13 | PrePayPower Pay-as-you-go electricity and gas retailer | $7M | 156 mo ago | 437 | Cathal Fay CEO | RubyTrixYouTube+17 | Top 500k | — | 5 job openings · 1 internship |
| 14 | AmbiSense Provider of AI-based autonomous gas monitoring technology | $6M | 57 mo ago | 20 | — | — | — | 13 patents Real-time ambient gas concentration and flow-rate sensing for air quality monitoring | — |
| 15 | Harp Renewables Manufacturer of biodigesters converting organic waste into biofertilizer | $5M | 65 mo ago | 12 | — | WordPressMySQLPHP+28 | Top 10M | — | 1 launch |
| 16 | Esave Corporation Connected battery management solution for grid connecticvity | $4M | 132 mo ago | 3 | Peter Haydon Founder & CEO | — | — | — | — |
| 17 | Positive Carbon Provider of automated food waste monitoring for food businesses | $3M | 31 mo ago | 12 | Mark Kirwan Co-Founder | WebflowYouTubeAmazon Web Services+12 | Top 50M | 2 patents Food waste monitoring systems using sensors and data analytics | — |
| 18 | Smart Efficient Light Control Provider of street lighting monitoring solutions | $3M | 192 mo ago | 200 | — | — | — | — | — |
| 19 | Oxymem Membrane aerated biofilm reactor which supplies oxygen to micro organisms to consume carbon and nitrogen | $3M | 42 mo ago | 60 | — | HubSpot CMS HubGSAPSnap.svg+15 | Top 10M | 55 patents Membrane aerated biofilm reactor mixing, air flow control, and compression sealing technologies | 1 expansion · 1 award |
| 20 | HaPPE Earth Provider of compostable PPE and waste management solutions for healthcare | $2M | 18 mo ago | — | Lisa ORiordan Co-Founder | Cart FunctionalityWooCommerceWordPress+13 | Top 50M | — | — |
| 21 | Wavebob WEC point absorber device | $2M | 188 mo ago | — | William Dick Founder | — | — | 44 patents Marine wave energy converters and resonance control technologies for offshore power generation | — |
| 22 | SeaPower Provider of a wave attenuator | $2M | 128 mo ago | — | — | — | — | — | — |
| 23 | GKinetic Energy Provider of vertical axis turbine device for ocean currents, rivers, and canals | $2M | 64 mo ago | 6 | — | WordPress Block EditorWordPressMySQL+15 | Top 10M | 16 patents Wind turbine blade pitch mechanisms and water turbine assembly designs | — |
| 24 | Spark Works Edge computing based IoT platform | $2M | 65 mo ago | — | Orestis Akrivopoulos CEO | WordPressMySQLPHP+24 | Top 50M | — | — |
| 25 | Climote Provider of heating control systems | $2M | 91 mo ago | 18 | Derek Roddy Co-Founder & CEO | OpenSSLBootstrapApache HTTP Server+10 | Top 5M | 31 patents Smart control of hot water storage tanks for heating systems using IoT and algorithms | — |
| 26 | Openvolt API for smart meter data | $2M | 33 mo ago | — | Don O'Leary Co-Founder | — | — | — | — |
| 27 | Energy Reform Provider of power and energy system modelling and analysis services | $2M | 41 mo ago | — | — | — | — | — | — |
| 28 | VT Electron Company provides grid monitoring solutions for grid operators | $1M | 122 mo ago | 12 | Mark Bannon Founder & CEO | — | — | — | — |
| 29 | EpiSensor Sensor systems and gateway for demand response and energy management | $1M | 174 mo ago | 6 | Brendan Carroll Co-Founder & CEO | WordPressMySQLPHP+22 | Top 50M | — | — |
| 30 | NanobOx Provider of nanobubble water treatment equipment for increased bio-process sustainability | $1M | 32 mo ago | — | Mohammad Ghaani Co-Founder | WebflowjQueryHSTS+6 | Top 50M | 2 patents Nanobubble generation apparatus for enhanced fluid treatment and gas dissolution | — |
| 31 | Wattics Cloud based analytics solutions for monitoring appliances and equipments | $984K | 108 mo ago | 13 | — | — | — | — | — |
| 32 | SureWash Hand hygiene training and compliance measurement | $827K | 150 mo ago | 11 | — | WordPressMySQLPHP+29 | Top 10M | — | — |
| 33 | ResourceKraft Data analytics for energy management | $808K | 194 mo ago | 20 | Liam Relihan Co-Founder & CEO | — | — | — | — |
| 34 | Lightly Technologies Provider of LED light source modules | $620K | 98 mo ago | — | Brian Charman Co-Founder | — | — | — | — |
| 35 | Kollect On-demand waste collection solution | $527K | 107 mo ago | 46 | John Connor CEO Kollect | WordPress Block EditorElementorCart Functionality+36 | Top 1M | — | — |
| 36 | Exceedence Software and advising firm focuses on the renewable energy industry | $429K | 92 mo ago | 11 | — | — | — | — | — |
| 37 | CRDC Provider of plastic waste recycling solutions | $404K | 45 mo ago | — | Donald Thomson Founder | WebflowGSAPLenis+16 | Top 10M | 23 patents Polymer-modified construction aggregates for enhanced concrete and building material performance | — |
| 38 | Ceramicx Manufacturer of infrared heating systems | $281K | 128 mo ago | 17 | Frank Wilson Co-Founder & Managing Director | Cart FunctionalityWooCommerceWordPress+32 | Top 5M | — | 1 job opening · 1 launch · 1 award |
| 39 | Enerit SaaS-driven software solutions for energy management | $169K | 129 mo ago | — | Mike Brogan Co-Founder & CEO | — | — | — | — |
| 40 | Carbon Harvesters Provider of carbon footprint management solutions | $155K | 36 mo ago | 2 | Luis Vergara Co-Founder | — | — | — | 1 partnership |
| 41 | SMART FLOW Provider of IoT based water monitoring and leak detection system | $83K | 81 mo ago | — | Dave Hogan CEO | — | — | — | — |
| 42 | Johnson Controls Manufacturer and supplier of automotive batteries and HVAC equipment | — | 12 mo ago | 100,000 100,000 → 60,114 (-40%) | George Oliver CEO | SitecoreSentryTypeScript+44 | Top 500k | — | 1 launch · 1 award |
Top 12 Environment Tech companies in Ireland
#1
Series A · Dublin, Leinster · founded 2010 · 16 employees$8.5Mraised▾
Developer of low-carbon drop-in transport fuels from diverse waste streams. It transforms waste into affordable low-carbon drop-in fuels. The company also pioneers sustainable carbon-negative fuels.
- Jan 2026Series A$20.1M
- Apr 2025Grant (prize money)$8.4M
- Jul 2022Series A$8.5M
#2
Series E · Dublin, Leinster · founded 2015 · 33 employees$80.5Mraised▾
UrbanVolt provides solutions for lighting as a service. It provides LED upgrade solutions that include capital investment, complete project management, and maintenance.
- May 2025Conventional Debt$45.2M
- Aug 2023Series E$28.3M
- Oct 2022Conventional Debt$29.6M
- May 2022Series D$6.3M
#3
Funding Raised · Limerick, County Limerick · founded 2013 · 117 employees$11.4Mraised▾
Provider of smart grid and demand response technology. It offers demand response solutions that allows commercial and industrial operations to earn revenue by participating in the electricity market.
- May 2025Conventional Debt$11.4M
#4
Funding Raised · Cobh, County Cork · founded 2005$11.4Mraised▾
WEC based on oscillating water column principle. It has only one moving part and the mooring system holds the OE Buoy in position and is key to its survivability in the gale-force winds and extreme sea states. The turbine captures the energy of the wave and the generator converts this energy to electrical power.
- Apr 2025Grant (prize money)$11.4M
#5
Funding Raised · Cork, Munster · founded 2021$2.5Mraised▾
Provider of compostable PPE and waste management solutions for healthcare. It facilitates the transition from single-use plastics to compostable alternatives. The company offers an on-site bio-digestion system that converts bio-PPE and food waste into fertilizer. Real-time data monitoring tracks waste reduction and sustainability progress. Services include onboarding, software integration, bio-digestion management, data analytics, and technical support. This tailored approach helps healthcare providers meet sustainability goals and reduce costs.
- Dec 2024Grant (prize money)$2.5M
#6
Series D · Limerick, County Limerick · founded 2003 · 86 employees$224.3Mraised▾
Cloud based ERP software solutions for waste management and recycling industries. It provides various solutions for contract pricing and invoicing, subcontractor management, billing, route optimization, fleet tracking, real-time planning, and others. Offers a mobile application for on-field sales personnel, and truck drivers, and a web portal for customers. It also provides dynamic and static weighbridge solutions consisting of patented algorithms for waste weighing operations and caters to waste recycling, construction, and oil and gas industries.
- Apr 2018Series D$121.3M
- Aug 2015Series C$51.2M
- Jul 2014Series B$11.2M
- Jan 2014Series B$31.9M
#7
Series A · Dublin, Leinster · founded 2012 · 36 employees$35.1Mraised▾
Waste Heat to energy converter. It offers a form of waste heat exchanger which helps in converting low-grade waste heat LGWH into a usable form. The technology is particularly suited to industrial applications like combined heat power, biogas, cargo shipping, and more.
- Jan 2022Series A$35M
- May 2017Grant (prize money)$2.8M
- Jun 2015Grant (prize money)$2.7M
- May 2015Grant (prize money)$2.8M
#8
Series B · Dublin, Leinster · founded 2009 · 22 employees$73.2Mraised▾
Developer of bioenergy projects
- Jun 2021Series B$73.2M
#9
Acqui-Hired · Dublin, Leinster · founded 2004 · 114 employees$71.1Mraised▾
OpenHydro, a DCNS company, specializing in the design, manufacture, installation and maintenance of marine turbines generating renewable energy from tidal streams. It offers a full turn-key tidal farm service, including the supply of Open-Centre Turbines, installation using patented barge deployment system, grid connection and maintenance. It deploys turbine arrays under the surface of the oceans to produce energy silently, invisibly and with no impact on the environment. It has tidal development projects in Ireland as well as internationally – UK, France & Canada.
- Sep 2017Grant (prize money)$9.3M
- Feb 2016PE$53M
- Jan 2011Series A$18.1M
#10
Seed · Roscommon, County Roscommon · founded 2020 · 12 employees$3.2Mraised▾
Provider of automated food waste monitoring for food businesses. The platform offers patent pending food waste sensors and food detection using AI. The automated food waste system tracks and logs all food waste created in all the kitchens using the scanner. It also provides reporting solution that provides tracks performance for multiple operations.
- Nov 2023Seed$2.5M
- Jun 2022Seed—
- 2022Seed—
- Sep 2021Seed—
#11
Series C · Enniskerry, County Wicklow · founded 2008 · 300 employees$31Mraised▾
Provider of software to reduce carbon emissions. The platform provides integration with systems and utilities, enabling users to measure, manage and reduce their company emissions. Additionally, the platform provides decarbonising transport, decarbonising energy, decarbonising supply chain, and more.
- Feb 2020Series C$31M
#12
Acquired · Athlone, County Westmeath · founded 2013 · 60 employees$2.9Mraised▾
OxyMem’s technology uses hollow fibre, gas permeable membranes to deliver oxygen directly to micro-organisms in water, which break down the pollutants and consume less energy and also lowers costs. OxyMem Membrane-Aerated Biofilm Reactor (MABR) is deployed as a modular cage design which can be supplied as a packaged plant or retrofitted directly into an existing aeration tank. MABR habitat creates an ideal environment to support a robust biofilm which absorbs and consumes carbon and nitrogen based pollutants. OxyMem is capable of achieving up to 99% oxygen transfer efficiency, as no oxygen is lost to atmosphere. It received ‘Innovation of the Year’ award - 2014 and named in Global Cleantech 100.
- Dec 2022Grant (prize money)$195.9K
- Jun 2017Series B—
- Apr 2016Series B$1.7M
- Aug 2014Seed$400K
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Environment Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding flat · growth flat
How research on Environmental Monitoring is moving in Ireland
A read on the academic research around Environmental Monitoring — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 234 Ireland-affiliated papers.
- Environmental Protection Agency84
- Dublin City University34
- University College Dublin21
- Trinity College Dublin18
- University College Cork15
- Air pollution1→4
- Water quality1→14
- Air quality index1→11
- Calibration1→10
- Estuary1→9
- Sediment1→8
- Wireless sensor network2→6
Where environmental monitoring is researched across Ireland
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.