Dr. Thomas Gnefkow

Partner/ Gesellschafter, Geschäftsführer

📍 Germany🔄 Updated September 2026💼 7 investments📅 6 years investing🗓 Last invested Sep 2023
Angel investor🌍 Germany
7
Total investments
4
Early stage
2
Mid stage
0
Late stage
6y
Years active

Portfolio

7 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Investor
Sep 2023
Revolutionizing wet biomass disposal by energizing it
Investor
Sep 2023
A profit for impact start-up based in Berlin, Germany that upcycles batteries from electric vehicles into connected sustainable power systems to avert climate change and protect valuable resources - fully embracing the principles of a circular economy. betteries is much more than a battery, it is a multipurpose power sys-tem. Each betteries system can store 3 kWh to 12 kWh of energy, offers fast charging capability and can flexibly deliver up to 5 kW of electric DC as well as AC power. betteries are modular in configuration to be stacked horizontally or vertically and can be charged by a variety of energy sources (solar, wind, hydro, grid). Smart electronics including Wi-fi and GPS enables betteries systems to be remotely monitored and controlled through an IoT platform. Rugged and water-proof, betteries offers solutions for e-mobility, off-grid productive use and on-grid backup pow-er. We upcycle 2nd life electric vehicle (EV) batteries to accelerate the transition to renewables and are well positioned to deliver scalable CO2 savings and protect scarce resources. Our business model embraces circular economy principles by ensuring recycling at the end of 2nd life and significantly lowers cost for customers through our battery-as-a-service offering.
Investor
Jan 2022
Extantia is a venture capital firm backing pioneers in climate. As a leading climate tech generalist, the firm’s investment strategies — Extantia Flagship and Extantia Allstars — are dedicated to supporting climate-focused companies and venture funds. Founded in 2020 and headquartered in Berlin, the firm manages approximately €300M in AuM. Extantia Flagship directly invests in software and hardware solutions that address large, near-term market opportunities with the power to redefine industries. It focuses on Seed to Series A rounds across Europe, with initial tickets ranging from €1-5 million.
Investor
Jun 2021
Skyseed combines drones, pelletized seeds and knowledge about forest-ecology to analyse trees & soils to deliver smart and sustainable reforestation in Germany and across Europe. As a service & at scale.
Investor
Feb 2021
Take control of your corporate emission data with Cozeros digital Climate Action Platform (CAP). Cozero tracks, optimizes, and engages on your carbon performance. Forget endless excel files & project sounding boards. Cozero digitally unites all carbon management data in one end-to-end platform, so that you can easily keep track - and act. Customize your climate action platform for your industry and company. Get smart on your carbon emissions and take the right decisions. Cozero was founded in 2020 with the purpose to enable the corporate sector in a transformational shift to a lower emission economy. We strongly believe that the private sector has the potential to make this transformation possible and to fight climate change effectively. Whoever you are - be it a business leader, a climate action enthusiast, a potential low carbon service or technology partner or a motivated individual who wants to join our mission - please reach out and get on board: info@cozero.io
Investor
Feb 2021
Africa GreenTec is a German social enterprise which empowers people in the Global South to achieve more self-determination and growth through sustainable energy solutions. With our sustainable system solution we build ImpactSites, in which entire village communities in rural areas are equipped and empowered with electricity and modern technologies. We have rethought electricity and developed an intelligent system that can withstand the harsh conditions of off-grid regions in Africa and even exceed modern European standards. We rely on an extensive portfolio of products and service solutions such as state-of-the-art solar energy, smart meter technology, cooling systems, water treatment and internet access. More than 600 million people in Sub-Saharan Africa have no access to electricity. With the ImpactSite, Africa GreenTec has developed a holistic systems solution that makes it possible to supply entire village communities in rural regions with electricity and sustainable technologies. We’ve taken electricity to the next level by developing an intelligent system that can withstand the harsh conditions of off-grid regions in Africa – outperforming even modern European standards. Products such as our powerful Solartainer® are driven by solar energy – the most logical and clean energy source of Africa. An intelligent network distributes the electricity via a pre-paid tiered pricing system and enables data analysis as well as remote maintenance.
Gründer und Investor
2020
Wir von Sanaleo wollen über das Potenzial der Cannabispflanze aufklären und sie von ihrem Stigma befreien. Mit unseren hochwertigen CBD-Produkten gilt es generationsübergreifend für ein gesteigertes Wohlbefinden zu sorgen. Dabei verfolgen wir als Unternehmen einen ausgleichenden nachhaltigen Ansatz.
early stageManufacturing
Experience · 9 entries
All (9)
Investments (7)
2023
Investor
Sep 2023
Revolutionizing wet biomass disposal by energizing it
Investor
Sep 2023
A profit for impact start-up based in Berlin, Germany that upcycles batteries from electric vehicles into connected sustainable power systems to avert climate change and protect valuable resources - fully embracing the principles of a circular economy. betteries is much more than a battery, it is a multipurpose power sys-tem. Each betteries system can store 3 kWh to 12 kWh of energy, offers fast charging capability and can flexibly deliver up to 5 kW of electric DC as well as AC power. betteries are modular in configuration to be stacked horizontally or vertically and can be charged by a variety of energy sources (solar, wind, hydro, grid). Smart electronics including Wi-fi and GPS enables betteries systems to be remotely monitored and controlled through an IoT platform. Rugged and water-proof, betteries offers solutions for e-mobility, off-grid productive use and on-grid backup pow-er. We upcycle 2nd life electric vehicle (EV) batteries to accelerate the transition to renewables and are well positioned to deliver scalable CO2 savings and protect scarce resources. Our business model embraces circular economy principles by ensuring recycling at the end of 2nd life and significantly lowers cost for customers through our battery-as-a-service offering.
2022
Investor
Jan 2022
Extantia is a venture capital firm backing pioneers in climate. As a leading climate tech generalist, the firm’s investment strategies — Extantia Flagship and Extantia Allstars — are dedicated to supporting climate-focused companies and venture funds. Founded in 2020 and headquartered in Berlin, the firm manages approximately €300M in AuM. Extantia Flagship directly invests in software and hardware solutions that address large, near-term market opportunities with the power to redefine industries. It focuses on Seed to Series A rounds across Europe, with initial tickets ranging from €1-5 million.
2021
Investor
Jun 2021
Skyseed combines drones, pelletized seeds and knowledge about forest-ecology to analyse trees & soils to deliver smart and sustainable reforestation in Germany and across Europe. As a service & at scale.
Investor
Feb 2021
Take control of your corporate emission data with Cozeros digital Climate Action Platform (CAP). Cozero tracks, optimizes, and engages on your carbon performance. Forget endless excel files & project sounding boards. Cozero digitally unites all carbon management data in one end-to-end platform, so that you can easily keep track - and act. Customize your climate action platform for your industry and company. Get smart on your carbon emissions and take the right decisions. Cozero was founded in 2020 with the purpose to enable the corporate sector in a transformational shift to a lower emission economy. We strongly believe that the private sector has the potential to make this transformation possible and to fight climate change effectively. Whoever you are - be it a business leader, a climate action enthusiast, a potential low carbon service or technology partner or a motivated individual who wants to join our mission - please reach out and get on board: info@cozero.io
Show all 9 entries ↓
Investment activity
2020–2023 · 7 investments
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