Adi Vagman

Co Founder and Managing Partner at E44 Ventures | Building Climate Breakthroughs | Venture Builder | Climate Tech | Investor | Board Member | Mentor

📍 Israel, Israel🔄 Updated September 2026💼 11 investments📅 10 years investing🗓 Last invested Aug 2025
VC🌍 Israel
11
Total investments
6
Early stage
1
Mid stage
0
Late stage
10y
Years active

Portfolio

10 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Investor
Nov 2024
Voltify saves rail and industrial companies up to 30% in their energy costs. We convert diesel locomotives to battery-electric and charge them through a dedicated renewable microgrid network.
Investor and Board member
Sep 2024
HyperHeat is on a mission to enable the world’s most energy-intensive industries to reach zero carbon emissions at a large scale, low cost and in time to stop climate change. - Hi there! Thanks for stopping by 👋 Are you passionate about tackling climate change? Eager to make a real impact on the environment? Well, look no further - you’re in the perfect place! Hyperheat is a young Climate Tech start-up with experienced founders and the goal of developing a renewable heat solution for energy-intensive industries. Basic industrial products, such as steel, cement, chemicals, glass, and paper, form the material basis of modern societies. However, the heat demand for their production is responsible for around 20% of human CO2 emissions (or 7,5 Gt CO2 each year) due to burning fossil fuels — therefore, it is one of the last major sectors without attractive, sustainable decarbonization solutions yet. Hyperheats products will provide a complete temperature range of up to 2000°C, making it a replacement for almost every gas burner in the industry. Our solution will be more cost-effective than the fossil state of the art, contributing to a new basis for global prosperity. At the heart of the development is a durable and cost-effective electric heater that can provide industrial process heat 24/7 from PV and wind power when combined with thermal storage. - Empowering Equity in Climate Tech At HyperHeat, we are devoted to building an inclusive workplace, increasing diverse representation, and promoting fairness in every aspect of our operations. Embracing diversity fuels our innovation and strengthens our mission to tackle climate change.
Board Observer
Oct 2023
Xfloat’s proprietary FPV mounting and tracking systems generate more efficient yield than existing FPV solutions, with enhanced durability – enabling floating PV to become competitive, for the first time, with any energy production facility, including ground-based PV. Deep Innovation. Precision Engineering. Our system integrates design and engineering advances throughout the array, worked out to the smallest detail – including the first true water-based tracking (HSAT) system. Unprecedented Yield, Lower LCOE. Our field-proven solution generates up to 28% more efficient yield than other FPV systems with the same power rating, while reducing overall lifetime costs significantly through numerous design and logistics enhancements. Durable yet Simple. Our pioneering mounting and buoyancy structure dampens the powerful effects of wind and waves on the PV array, boosting the long-term durability that is crucial for operators and investors. Superior Execution. Xfloat’s diverse team of engineers, data experts, logistics pros and solar executives brings decades of rare operational expertise at solving engineering challenges in difficult aquatic environments. #solarenergy #solarpanels
Investor
Aug 2023
Restoring the global CO₂ balance by developing a unique marine carbon removal method that delivers optimum scale and quality at an affordable price.
Investor & Board member
May 2023
Currently working on something new and very exciting
Investor & Board member
May 2023
We empower growers to unlock the full potential of soil-preserving, organic and regenerative practices by mimicking manual weeding work with low disruption to the soil, minimizing environmental impact, and promoting efficiency
Investor
2020
Hyper food robotics is an innovative company committed to reinventing the fast food industry by introducing a fully autonomous self-contained robotic restaurant hybrid capable of providing fresh, flavorful, healthy, and safe fast food, that meets the demands of both the industry and the consumer. Hyper’s ground-breaking concept will propel the industry forward and shape its future. contact us: info@hyper-robotics.com https://www.facebook.com/HyperFoodRobotics
Founding Investor and board member
2019
Stay is a fresh dog food subscription company that provides optimal nutrition for your favorite family member. We combine simple, easy-to-use gut microbiome tests with the power of data science so we can deliver personalized and delicious meals that fit your dog’s needs. Your dog’s gut microbiome, the collection of all the different types of bacteria and microorganisms, can tell us a lot about your dog’s metabolism, nutritional needs, and so much more. So our team of board-certified veterinarians and animal nutrition experts have come together to develop unique recipes. We use fresh, gently-cooked ingredients to keep in all the nutrients that will meet your dog’s health needs. Our members receive our fresh dog food delivered straight to their door, personalized to their dog’s age, energy level, weight, and health goals. Our commitment is more than just food delivery. We promise a life-long partnership to make sure your dog stays healthy and happy. Stay gets to know your dog, even after you click the checkout button. We follow up routinely to see how our members are doing. You can ask our well-being team about the food transition process or absolutely anything at all. We’ve even had some members say we know their dog better than they do! We send seasonal microbiome tests so we can show you how much your dog’s gut health improves over time. Plus, it allows us to adjust each dog’s diet at every stage of their life. We are changing how we all think about the connection between pet food and wellness. Think of Stay as dog nutrition 2.0.
early stageConsumer Goods
Board Observer
Nov 2016
Groundwork BioAg produces highly-effective mycorrhizal inoculants for commercial agriculture. Containing concentrated and vigorous beneficial fungi, Rootella™ inoculants significantly improve soil nutrient uptake in plants. Rootella™ increases crop yields, improves resistance to several types of stress, and reduces fertilizer requirements. Groundwork BioAg has demonstrated significant yield increases in numerous major crops, including corn, soybean, sorghum, tomato, and onion.
Board Member
Sep 2016
We use cutting-edge gene editing techniques to develop healthier, hardier and more sustainable crop varieties that flourish even in the face of climate change so local growing communities can thrive, and we can sustain the world’s food supply.
Experience · 14 entries
All (14)
Investments (11)
Founder (1)
Board (7)
2025
Investor
Aug 2025
Blykalla is on a mission to change the energy future of the world, by providing green, safe, baseload energy through next generation small modular lead-cooled reactors. Blykalla is a Swedish deep-tech company founded in 2013 by Janne Wallenius, Peter Szakalos and Jesper Ejenstam as a spin-off from the Royal Institute of Technology in Stockholm, where Janne Wallenius carried out research on design and safety analysis on lead-cooled reactor systems since 1996. We develop and build lead-cooled small modular reactors (SMRs) to deliver safe, scalable and carbon-free baseload power supply. Thanks to lead-cooling, we achieve high safety in a very compact format, allowing for a simple and cost effective design that can be mass produced. Our unique reactor design will provide safe and green baseload energy that is a perfect complement to solar and wind power.
2024
Investor
Nov 2024
Voltify saves rail and industrial companies up to 30% in their energy costs. We convert diesel locomotives to battery-electric and charge them through a dedicated renewable microgrid network.
Investor and Board member
Sep 2024
HyperHeat is on a mission to enable the world’s most energy-intensive industries to reach zero carbon emissions at a large scale, low cost and in time to stop climate change. - Hi there! Thanks for stopping by 👋 Are you passionate about tackling climate change? Eager to make a real impact on the environment? Well, look no further - you’re in the perfect place! Hyperheat is a young Climate Tech start-up with experienced founders and the goal of developing a renewable heat solution for energy-intensive industries. Basic industrial products, such as steel, cement, chemicals, glass, and paper, form the material basis of modern societies. However, the heat demand for their production is responsible for around 20% of human CO2 emissions (or 7,5 Gt CO2 each year) due to burning fossil fuels — therefore, it is one of the last major sectors without attractive, sustainable decarbonization solutions yet. Hyperheats products will provide a complete temperature range of up to 2000°C, making it a replacement for almost every gas burner in the industry. Our solution will be more cost-effective than the fossil state of the art, contributing to a new basis for global prosperity. At the heart of the development is a durable and cost-effective electric heater that can provide industrial process heat 24/7 from PV and wind power when combined with thermal storage. - Empowering Equity in Climate Tech At HyperHeat, we are devoted to building an inclusive workplace, increasing diverse representation, and promoting fairness in every aspect of our operations. Embracing diversity fuels our innovation and strengthens our mission to tackle climate change.
2023
Board Observer
Oct 2023
Xfloat’s proprietary FPV mounting and tracking systems generate more efficient yield than existing FPV solutions, with enhanced durability – enabling floating PV to become competitive, for the first time, with any energy production facility, including ground-based PV. Deep Innovation. Precision Engineering. Our system integrates design and engineering advances throughout the array, worked out to the smallest detail – including the first true water-based tracking (HSAT) system. Unprecedented Yield, Lower LCOE. Our field-proven solution generates up to 28% more efficient yield than other FPV systems with the same power rating, while reducing overall lifetime costs significantly through numerous design and logistics enhancements. Durable yet Simple. Our pioneering mounting and buoyancy structure dampens the powerful effects of wind and waves on the PV array, boosting the long-term durability that is crucial for operators and investors. Superior Execution. Xfloat’s diverse team of engineers, data experts, logistics pros and solar executives brings decades of rare operational expertise at solving engineering challenges in difficult aquatic environments. #solarenergy #solarpanels
Investor
Aug 2023
Restoring the global CO₂ balance by developing a unique marine carbon removal method that delivers optimum scale and quality at an affordable price.
Show all 14 entries ↓
Investment activity
2016–2025 · 11 investments
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