Top 5 Energy Angel Investors in Ireland (August 2026)

Portfolio highlights

• Gazelle Wind Power — Modular, scalable, easier to deploy: Introducing Gazelle's unique dynamic mooring system, an evolutionary step-change in the design of floating platforms.
• Breathe Battery Technologies — Breathe Battery Technologies is a research-led technology company developing advanced battery management algorithms

Portfolio highlights

• Gudog — Gudog connects dog owners with the experienced pet sitters, ie. it facilitates the task of finding an ideal pet sitter nearby making it easy as one, two, three. It offers a wide range of services provided in a fun, relaxed manner yet with a complete safety and no risk involved. Dog owner also can choose to be updated in the real time via email,website or smartphone. A clear and easy to use platform offers an effortless online booking and guarantees a secure payment process.Gudog mission is to solve issues dog owners face on a regular basis by offering innovative solutions, combining technology and pet-knowledge. The major dilemma a dog owner encounters is the necessity to ensure a good care for his four legged friend at times when he or she is not able to take care of it himself. Prior to Gudog, the only solution were dog kennels. However, spending time in a dog kennel implies the dog being put under a lot of stress related to the change of habits. Moreover, in a dog kennel the dog spends most of the time in a cage - all of this is not the ideal environment a dog owner could wish for his pet. Gudog was born out of a desire to provide an alternative.
• AventaMed — All in one ear tube placement device - No operating room or general anesthetic needed. A new standard of care in tympanostomy tube surgery.
• Senoptica Technologies — Senoptica has created a novel sensor that helps Global Retailers increase category sales through reducing food waste

Portfolio highlights

• Revive Active — Revive Active health supplement is the only brand that unlocks your abundant natural energy to maximize the lifestyle you want because it’s a supplement that does not compromise on amount or quality but is abundant with fantastic ingredients. Revive Active Health Supplement is a high quality blend of 26 ingredients delivered in one convenientsachet. The unique blend of vitamins and minerals combine to provide a multitude of health benefits including natural sustained energy without the use of sugar and caffeine. The revolutionary product also brings two key Nobel prize-winning ingredients together for the first time. The combined inclusion of Coenzyme Q10 and L-Arginine further improves Revive Active’s ability to enhance energy and vitality and support a healthy immune system in regular consumers all for as little as a cup of coffee per day.Unlike traditional fish oil supplements, Revive Krill Oil is an extremely bioavailable source of EPA and DHA. Key to the enhanced absorption is the unique structure of the omega-3s. Fish oil omega-3s are found in a triglyceride form, which repel water impairing absorption in the digestive tract. Krill oil is found in a phospholipid form which attracts water promoting fast and efficient absorption. This helps deliver the essential omega-3s to the places you need it most.

Portfolio highlights

• Gazelle Wind Power — Modular, scalable, easier to deploy: Introducing Gazelle's unique dynamic mooring system, an evolutionary step-change in the design of floating platforms.
• Asteroid Mining Corporation Ltd — AMC, founded in 2016, is the UK's first space mining enterprise, an aerospace company on a mission to exploit the potential of an off-Earth commercial market. Currently focussed on the prospecting and exploration stages, it ultimately aims to extract, process and utilise the materials embedded within some of the millions of Near Earth and MainBelt Asteroids. We are first and foremost a business. We aim to extract resources from asteroids to boost the Earth's economy and kick start the Space Based Economy as the vast values of some asteroids can be valued in trillions, with the largest asteroids being worth quintillions, while even small asteroids can be hugely valuable. This money will be spent in building ever growing amounts of space infrastructure so that we can eventually allow all humans who desire it to live and work in Space.Our team is currently working in partnership with the Space Robotics Lab at Tohoku University, Japan, developing SCAR-E. These low-cost, ruggedised, walking and climbing robots will be capable of undertaking asteroid, planetary and lunar exploration, alongside mining operations. Designed to withstand exposure to radiation, high accelerations experienced during space launch, and extreme temperatures, SCAR-E will be capable of in-orbit asset maintenance such as spacewalking and extravehicular activity. These unique features will also enable them to function in hostile environments here on Earth, primarily in the fields of nuclear decommissioning, critical infrastructure inspection, mine clearance, and search & rescue operations.

Portfolio highlights

• H2ozone — H2Ozone patented Technology completely eradicates all harmful bacteria and pathogens from all water sources. Our compact, energy-efficient machines create and harness the natural phenomena of Ultra-Violet light and Ozone, plus Filtration, to produce an environmentally sustainable and chemical-free supply of the pure, clean, fresh water.AgriSafe™uses patented H2Ozone Technology to accurately control a naturally self-disinfecting supply of Pure Ozonated Water for: • Livestock and Hydroponic Cultures • Dairy and Veterinary FacilitiesRainSafe™ uses patented H2Ozone Technology to provide a chemical-free purification solution for all water sources to independently verified drinking water standards.RainSafe™ offers 24/7 365-day guaranteed pure drinking water solutions for: • Residential Premises • Commercial and Office Premises • Hospitality, Restaurants and Pubs • Nursing Home and Cleaning Services • Medical and Dental Practices • Schools, Colleges and Sports Halls … Anywhere that requires 24/7 365-day guaranteed pure drinking water.