HTGF | High-Tech Gruenderfonds
High-Tech Gründerfonds Management GmbH is a venture capital firm based in Bonn, Germany, specializing in early-stage investments in high-tech startups. Established in 2005, the firm focuses on technology-driven companies across various sectors, including information and communication technology, life sciences, healthcare, automation, and cleantech. HTGF typically invests in companies that have been operational for no more than one year, aiming to contribute up to €0.6 million in initial funding and up to €3 million in follow-on financing. The firm seeks a minority stake, generally around 15%, and provides a subordinated loan convertible into equity, with deferred interest for up to four years to support liquidity. With a total investment volume of approximately €895.5 million across three funds, HTGF has successfully supported over 500 startups and attracted more than €2 billion in follow-on investments from external sources. The firm's investors include notable public and private entities, underscoring its role as a key player in fostering innovation and growth within the German startup ecosystem.
Top Stages
Past deals in Renewables
node.energy
Series B in 2025
node.energy GmbH, established in Frankfurt am Main, Germany in 2016, specializes in providing Software-as-a-Service (SaaS) solutions for optimizing local energy microgrids. The company's flagship product, opti.node, enables industrial and commercial entities with on-site power generation to reduce energy costs and carbon footprint by offering regulatory and commercial management tools. node.energy caters primarily to energy managers of commercial buildings and metering service providers, aiming to streamline administrative tasks, facilitate energy cost savings, and ensure compliance with current regulations.
ctrl+s
Seed Round in 2025
Ctrl+s is a business that specializes in providing high-resolution supply chain data to facilitate decarbonization and promote sustainable practices. It has developed a carbon management platform that helps businesses streamline their supply chain decarbonization efforts. The platform combines deep statistical data with supplier survey insights, enabling companies to effectively monitor their emissions, set reduction targets, and engage suppliers in reducing their carbon footprint.
alteva
Pre Seed Round in 2025
Alteva is a technology company specializing in the development of advanced battery cells. Its primary focus is on creating high-energy density, safety-conscious batteries tailored for the decarbonization of hard-to-electrify transport sectors such as aviation and heavy-duty vehicles. The company's innovative approach involves the use of ultralight carbon materials and sustainable raw materials, aiming to enhance battery performance, longevity, and compatibility with existing production facilities.
Autarkize
Seed Round in 2024
Autarkize is a developer of a patented pyrolysis system technology that focuses on achieving energy and fertilizer self-sufficiency through the carbonization of residual biomasses. The company offers a market-ready system that extracts high-quality gas composed of methane and hydrogen from various biomass residues in a decentralized manner. Its technology is capable of processing all types and amounts of biomass, resulting in significantly higher energy density compared to traditional carbonization systems. Additionally, the process generates biochar, which enhances soil quality and contributes to the reduction of greenhouse gas emissions. By enabling industrial companies to promote energy cleaning and decarbonization, Autarkize plays a vital role in advancing sustainable energy solutions.
Aerleum
Seed Round in 2024
Aerleum is an innovative company specializing in environmental technology that focuses on reducing greenhouse gas emissions through the development of a system that captures and converts carbon dioxide into clean fuels and chemicals. By transforming CO2 into essential chemical molecules, Aerleum provides a sustainable alternative to products derived from fossil fuels. This technology supports the creation of a circular economy, enabling businesses to adopt economically viable solutions that can be implemented on a large scale. Aerleum's mission is to contribute significantly to the fight against global warming while fostering a sustainable value chain.
Caeli Wind
Series A in 2024
Caeli Wind is a digital marketplace focused on enhancing the wind energy sector by identifying optimal locations for wind turbine projects. The company employs advanced AI-supported analysis to assess various factors, such as regional planning, grid connections, and economic efficiency, ensuring comprehensive evaluations of wind potential. By creating a cloud-based platform, Caeli Wind connects landowners with project developers, facilitating streamlined marketing efforts and accelerating the implementation of wind energy projects. Its mission is to promote the widespread adoption of wind turbines and improve the overall success rate of projects within the wind industry.
Everyone Energy
Seed Round in 2024
Everyone Energy is a technology company that specializes in an automated energy advisory platform. This platform aims to enhance user experience during the energy transition by providing expert advice on various energy solutions, including PV systems, heat pumps, electric vehicle charging points, and battery storage. It caters to both residential and commercial clients, helping them connect with relevant solution providers, facilitating informed decision-making, and saving time in the process.
Proxima Fusion
Seed Round in 2024
Proxima Fusion is a company dedicated to developing innovative fusion power plants aimed at producing abundant and emissions-free energy. The company specializes in creating new types of power plants using stellarators optimized to form magnetic cages for high-energy particles. Their technology focuses on building the first generation of fusion power plants using QI stellarators, which generate electricity by fusing nuclei, thereby enabling businesses to produce clean, safe, and renewable energy.
Cyclize
Seed Round in 2024
Cyclize is a technology company focused on decarbonizing the chemical industry. It develops a proprietary process that converts mixed plastic waste and CO2 into syngas, a versatile intermediate used to produce various chemicals and fuels. This process aims to replace fossil feedstock, such as natural gas, reducing reliance on non-renewable resources and minimizing greenhouse gas emissions.
Rabot Charge
Series A in 2024
Rabot Charge is an electric car charging service provider that specializes in creating a dynamic electricity pricing platform. The company utilizes algorithms, artificial intelligence, and machine learning to optimize charging schedules for electric vehicle owners and eco-conscious households. By leveraging real-time electricity market data, Rabot Charge empowers its users to save on energy costs, reduce their carbon footprint, and enhance vehicle ownership through smart charging automation. This innovative approach simplifies the charging process and contributes to a more sustainable energy grid.
instagrid
Series C in 2024
Instagrid GmbH, founded in 2018 and based in Stuttgart, Germany, specializes in the manufacturing of portable battery storage systems designed to create mobile power infrastructures for various sectors, including construction, event technology, landscaping, and public services. The company's innovative products feature a unique architecture of stacked micro-level inverters, which allows them to be smaller, lighter, and more powerful than traditional battery systems. Instagrid's portable power solutions provide reliable access to clean, affordable, and silent electricity, effectively replacing environmentally harmful petrol and diesel generators. By enabling users to operate efficiently at temporary locations, Instagrid plays a crucial role in meeting the energy demands of industries with challenging power requirements.
INERATEC
Series B in 2024
INERATEC is a company dedicated to developing innovative synthetic fuels and power-to-X plants that aim to replace fossil fuels with carbon-neutral alternatives. By focusing on sustainable energy solutions, INERATEC produces renewable hydrogen and utilizes greenhouse gases like carbon dioxide to create e-kerosene, carbon dioxide-neutral diesel, synthetic waxes, and methanol. These products allow chemical plant operators to power their facilities with synthetic fuels derived from climate-neutral energy sources, thereby reducing chemical waste and enhancing climate protection. Through its efforts, INERATEC contributes to the advancement of a post-fossil fuel economy and supports the transition to sustainable energy in transportation and everyday products.
COLIPI
Seed Round in 2024
COLIPI is a clean technology company focused on climate protection by transforming CO2 into sustainable oils through a proprietary biotechnological process. This innovative approach utilizes industrial off-gases and organic byproducts as carbon sources, resulting in oils that are chemically equivalent to traditional vegetable oils. The company’s oils primarily consist of triglycerides with a fatty acid profile that includes palmitic, stearic, oleic, and linoleic acids, which can be modified based on specific needs. By providing a direct substitute for unsustainable vegetable oils, COLIPI enables industrial partners to significantly reduce their carbon footprint and contribute to eco-friendly consumer product development, supporting their goals for net-zero emissions. With one of the industry's lowest CO2 footprints, COLIPI is positioned to play a crucial role in advancing sustainability in the sector.
Soluterials
Seed Round in 2023
Soluterials is a manufacturer specializing in sustainable and innovative pure aluminum materials designed to address climate change and enhance local supply chains. The company produces nanostructured aluminum that leverages the inherent properties of pure aluminum, including excellent conductivity, corrosion resistance, and high strength under varying temperatures. This advanced material is particularly beneficial for clients in the metal application sector, offering solutions for challenges in functional and structural lightweight construction. By focusing on high-performance aluminum, Soluterials aims to provide effective alternatives that meet modern engineering demands while promoting environmental sustainability.
traceless materials
Series A in 2023
traceless materials is offering a holistically sustainable alternative to plastics and bioplastics. With our first-of-a-kind biomaterial it’s our mission to contribute to solving global plastic pollution. Our innovative technology filed for patent allows to use food production residues to produce materials that are compostable under natural composting conditions. While bio-based, our materials don’t compete with food nor cause land-use-change, don’t need hazardous additives or solvents and have up to 95% lower CO2 emissions. Our materials are neither chemically modified nor synthetically polymerized, therefore they will not fall under the EU Single Use Plastic Directive. Follow us on our journey, and become a part of the solution, not the pollution!
Materials Nexus
Seed Round in 2023
Materials Nexus is a deep-tech company specializing in accelerating sustainable materials innovation. It automates complex quantum calculations at scale, enhancing accuracy and efficiency. The company's core business lies in developing a material modeling platform that integrates quantum mechanics and artificial intelligence. This platform facilitates the creation of greener, more sustainable materials with reduced greenhouse gas emissions, primarily targeting the construction sector for access to eco-friendly building materials.
ReCatalyst
Seed Round in 2023
ReCatalyst is a company focused on the development and commercialization of advanced catalysts for hydrogen fuel cells. It specializes in platinum-alloy catalysts, offering patented nano-catalyst technology that enhances stability and reduces the amount of platinum required in fuel cell systems. This innovation enables greater scalability of high-power proton exchange membrane fuel cells while optimizing the use of platinum group metals. By improving the efficiency and sustainability of fuel cell technology, ReCatalyst aims to contribute significantly to the growing hydrogen energy sector.
Caeli Wind
Seed Round in 2023
Caeli Wind is a digital marketplace focused on enhancing the wind energy sector by identifying optimal locations for wind turbine projects. The company employs advanced AI-supported analysis to assess various factors, such as regional planning, grid connections, and economic efficiency, ensuring comprehensive evaluations of wind potential. By creating a cloud-based platform, Caeli Wind connects landowners with project developers, facilitating streamlined marketing efforts and accelerating the implementation of wind energy projects. Its mission is to promote the widespread adoption of wind turbines and improve the overall success rate of projects within the wind industry.
Proxima Fusion
Pre Seed Round in 2023
Proxima Fusion is a company dedicated to developing innovative fusion power plants aimed at producing abundant and emissions-free energy. The company specializes in creating new types of power plants using stellarators optimized to form magnetic cages for high-energy particles. Their technology focuses on building the first generation of fusion power plants using QI stellarators, which generate electricity by fusing nuclei, thereby enabling businesses to produce clean, safe, and renewable energy.
Rabot Charge
Seed Round in 2023
Rabot Charge is an electric car charging service provider that specializes in creating a dynamic electricity pricing platform. The company utilizes algorithms, artificial intelligence, and machine learning to optimize charging schedules for electric vehicle owners and eco-conscious households. By leveraging real-time electricity market data, Rabot Charge empowers its users to save on energy costs, reduce their carbon footprint, and enhance vehicle ownership through smart charging automation. This innovative approach simplifies the charging process and contributes to a more sustainable energy grid.
Sunvigo
Series B in 2023
Sunvigo is a company that specializes in making solar power accessible to residential homeowners. It simplifies the use of rooftop solar energy by offering electricity contracts that enable customers to buy or rent solar systems. By leveraging a robust network of partners, including smart meter operators and photovoltaic installers, Sunvigo provides affordable solar power solutions. The company aims to democratize access to clean energy, ensuring that homeowners can benefit from local and emission-free energy sources.
Phytonics
Seed Round in 2023
Phytonics is a company that specializes in developing innovative anti-reflective coating products designed for photovoltaic modules. Its offerings include a broadband, omnidirectional anti-reflective coat that enhances light-trapping capabilities, thereby improving the efficiency of solar energy capture. By utilizing glare-free solar modules, Phytonics aims to facilitate the transition to renewable energy sources, making solar power more accessible and effective for users.
INERATEC
Venture Round in 2023
INERATEC is a company dedicated to developing innovative synthetic fuels and power-to-X plants that aim to replace fossil fuels with carbon-neutral alternatives. By focusing on sustainable energy solutions, INERATEC produces renewable hydrogen and utilizes greenhouse gases like carbon dioxide to create e-kerosene, carbon dioxide-neutral diesel, synthetic waxes, and methanol. These products allow chemical plant operators to power their facilities with synthetic fuels derived from climate-neutral energy sources, thereby reducing chemical waste and enhancing climate protection. Through its efforts, INERATEC contributes to the advancement of a post-fossil fuel economy and supports the transition to sustainable energy in transportation and everyday products.
Refuel Green
Pre Seed Round in 2023
Refuel Green provides services in the fields of technical and economic analyses and evaluations of individual PtX technologies up to complete PtX systems and projects. They offer consulting services in the field of renewable and CO2-neutral fuels.
agriportance
Seed Round in 2022
Agriportance GmbH, founded in 2020, is a prominent SaaS provider in Europe's renewable energy sector. The company focuses on software solutions for sustainability certification under recognized standards, allowing users to generate mass and greenhouse gas balances online. This facilitates compliance and promotes environmental responsibility among businesses transitioning to cleaner energy sources. Agriportance serves as a crucial intermediary, connecting biomethane producers with mineral oil companies, thereby supporting the growth of renewable energy utilization. The platform's capabilities include monitoring sustainability certification and facilitating transactions in biomethane trading, which aligns with renewable energy directives. Following its seed funding in December 2022, Agriportance aims to enhance its digital capabilities and strengthen its market presence across Europe.
EcoPals
Seed Round in 2022
EcoPals is a company focused on developing sustainable solutions for road construction by transforming waste plastics into innovative materials. It specializes in creating a carbon-reducing asphalt additive derived from non-recyclable plastics, providing a low-cost alternative to traditional bitumen additives. This approach not only helps address global plastic waste issues but also enhances the quality of road infrastructure. By offering eco-friendly and cost-effective alternatives, EcoPals aims to contribute to a more sustainable future in the construction industry.
node.energy
Series A in 2022
node.energy GmbH, established in Frankfurt am Main, Germany in 2016, specializes in providing Software-as-a-Service (SaaS) solutions for optimizing local energy microgrids. The company's flagship product, opti.node, enables industrial and commercial entities with on-site power generation to reduce energy costs and carbon footprint by offering regulatory and commercial management tools. node.energy caters primarily to energy managers of commercial buildings and metering service providers, aiming to streamline administrative tasks, facilitate energy cost savings, and ensure compliance with current regulations.
IO-Dynamics
Seed Round in 2022
IO-Dynamics specializes in smart charging solutions for electric vehicle fleets, focusing on energy management and optimization. The company develops software that gathers and analyzes real-time data from electric vehicles and charging infrastructure. This technology enables organizations to efficiently manage and control the charging processes of their e-fleets, ensuring sustainable and reliable operations. By providing insights into energy consumption and charging patterns, IO-Dynamics helps businesses plan their charging schedules automatically and reduce costs associated with electric vehicle operations.
Sunvigo
Venture Round in 2022
Sunvigo is a company that specializes in making solar power accessible to residential homeowners. It simplifies the use of rooftop solar energy by offering electricity contracts that enable customers to buy or rent solar systems. By leveraging a robust network of partners, including smart meter operators and photovoltaic installers, Sunvigo provides affordable solar power solutions. The company aims to democratize access to clean energy, ensuring that homeowners can benefit from local and emission-free energy sources.
instagrid
Series B in 2022
Instagrid GmbH, founded in 2018 and based in Stuttgart, Germany, specializes in the manufacturing of portable battery storage systems designed to create mobile power infrastructures for various sectors, including construction, event technology, landscaping, and public services. The company's innovative products feature a unique architecture of stacked micro-level inverters, which allows them to be smaller, lighter, and more powerful than traditional battery systems. Instagrid's portable power solutions provide reliable access to clean, affordable, and silent electricity, effectively replacing environmentally harmful petrol and diesel generators. By enabling users to operate efficiently at temporary locations, Instagrid plays a crucial role in meeting the energy demands of industries with challenging power requirements.
INERATEC
Series A in 2022
INERATEC is a company dedicated to developing innovative synthetic fuels and power-to-X plants that aim to replace fossil fuels with carbon-neutral alternatives. By focusing on sustainable energy solutions, INERATEC produces renewable hydrogen and utilizes greenhouse gases like carbon dioxide to create e-kerosene, carbon dioxide-neutral diesel, synthetic waxes, and methanol. These products allow chemical plant operators to power their facilities with synthetic fuels derived from climate-neutral energy sources, thereby reducing chemical waste and enhancing climate protection. Through its efforts, INERATEC contributes to the advancement of a post-fossil fuel economy and supports the transition to sustainable energy in transportation and everyday products.
ZE Energy
Series A in 2021
ZE Energy is provides a hybrid solar plant solution featuring energy storage capabilities and photovoltaics. Equipped with a battery that stores the solar energy generated throughout the day, its power plants boast the advantages of solar power in terms of production costs, integration to the environment and power grid, as well as the generation of zero CO2 emissions.
Sunvigo
Venture Round in 2021
Sunvigo is a company that specializes in making solar power accessible to residential homeowners. It simplifies the use of rooftop solar energy by offering electricity contracts that enable customers to buy or rent solar systems. By leveraging a robust network of partners, including smart meter operators and photovoltaic installers, Sunvigo provides affordable solar power solutions. The company aims to democratize access to clean energy, ensuring that homeowners can benefit from local and emission-free energy sources.
traceless materials
Seed Round in 2021
traceless materials is offering a holistically sustainable alternative to plastics and bioplastics. With our first-of-a-kind biomaterial it’s our mission to contribute to solving global plastic pollution. Our innovative technology filed for patent allows to use food production residues to produce materials that are compostable under natural composting conditions. While bio-based, our materials don’t compete with food nor cause land-use-change, don’t need hazardous additives or solvents and have up to 95% lower CO2 emissions. Our materials are neither chemically modified nor synthetically polymerized, therefore they will not fall under the EU Single Use Plastic Directive. Follow us on our journey, and become a part of the solution, not the pollution!
HighLine Technology
Pre Seed Round in 2021
HighLine Technology specializes in the development and commercialization of advanced dispensing technology aimed at enhancing efficiency within the photovoltaics (PV) sector. The company focuses on reducing material consumption, which not only boosts the competitiveness of solar energy solutions but also promotes sustainability in the industry. HighLine's innovative technology applies front metal contacts onto solar cells, offering a modern alternative to traditional screen printing methods. This parallel dispensing technology can be seamlessly integrated into existing production lines for silicon solar cells, allowing clients to optimize resource usage, increase electricity yield, and improve overall production throughput. Additionally, HighLine Technology extends its dispensing solutions to various other sectors, showcasing its versatility and commitment to efficiency.
MagnoTherm
Seed Round in 2021
MagnoTherm, founded in 2019 and headquartered in Darmstadt, Germany, specializes in innovative magnetic cooling and heating technologies. With a team of over 40 experts in magnetocaloric materials, the company is committed to addressing the climate crisis by revolutionizing the cooling industry, which accounts for approximately 7% of global CO2 emissions. MagnoTherm's technology offers an alternative to traditional gas compression systems, boasting up to 30% greater energy efficiency while being non-explosive, non-flammable, and requiring low maintenance. The company aims to meet the increasing demand for sustainable and cost-effective cooling solutions, providing a viable pathway for policymakers to transition from outdated gas compression methods that have remained unchanged for nearly two centuries.
Sunvigo
Seed Round in 2020
Sunvigo is a company that specializes in making solar power accessible to residential homeowners. It simplifies the use of rooftop solar energy by offering electricity contracts that enable customers to buy or rent solar systems. By leveraging a robust network of partners, including smart meter operators and photovoltaic installers, Sunvigo provides affordable solar power solutions. The company aims to democratize access to clean energy, ensuring that homeowners can benefit from local and emission-free energy sources.
ZE Energy
Seed Round in 2020
ZE Energy is provides a hybrid solar plant solution featuring energy storage capabilities and photovoltaics. Equipped with a battery that stores the solar energy generated throughout the day, its power plants boast the advantages of solar power in terms of production costs, integration to the environment and power grid, as well as the generation of zero CO2 emissions.
instagrid
Series A in 2020
Instagrid GmbH, founded in 2018 and based in Stuttgart, Germany, specializes in the manufacturing of portable battery storage systems designed to create mobile power infrastructures for various sectors, including construction, event technology, landscaping, and public services. The company's innovative products feature a unique architecture of stacked micro-level inverters, which allows them to be smaller, lighter, and more powerful than traditional battery systems. Instagrid's portable power solutions provide reliable access to clean, affordable, and silent electricity, effectively replacing environmentally harmful petrol and diesel generators. By enabling users to operate efficiently at temporary locations, Instagrid plays a crucial role in meeting the energy demands of industries with challenging power requirements.
envelio
Series A in 2019
envelio GmbH, founded in 2017 and based in Cologne, Germany, specializes in developing software solutions for the planning and operation of energy networks. The company offers the Intelligent Grid Platform (IGP), a modular software system designed to assist distribution grid operators in digitizing and automating their processes. This platform integrates algorithms based on artificial intelligence and mathematical optimization to facilitate the management of distribution grids, allowing for the seamless incorporation of numerous distributed energy resources and smart meter data. Key features of the IGP include applications for data quality management, automated grid planning, and operational support for congestion management in response to potential grid bottlenecks. By enabling grid operators to optimize their operations, envelio plays a crucial role in advancing the energy transition and enhancing grid sustainability and flexibility.
instagrid
Seed Round in 2019
Instagrid GmbH, founded in 2018 and based in Stuttgart, Germany, specializes in the manufacturing of portable battery storage systems designed to create mobile power infrastructures for various sectors, including construction, event technology, landscaping, and public services. The company's innovative products feature a unique architecture of stacked micro-level inverters, which allows them to be smaller, lighter, and more powerful than traditional battery systems. Instagrid's portable power solutions provide reliable access to clean, affordable, and silent electricity, effectively replacing environmentally harmful petrol and diesel generators. By enabling users to operate efficiently at temporary locations, Instagrid plays a crucial role in meeting the energy demands of industries with challenging power requirements.
Volterion
Series A in 2018
Volterion, founded in 2015 as a spin-off from the Fraunhofer Institute UMSICHT, specializes in the development and manufacturing of redox flow battery stacks and systems designed for efficient commercial energy storage. The company focuses on creating innovative energy solutions, such as the powerRFB, which is a scalable battery system tailored to meet the demanding requirements of industrial applications. Volterion utilizes patented materials and advanced manufacturing techniques, including fully automated processes, to produce durable, cost-effective energy storage solutions. The company's technology has garnered multiple awards, reflecting its commitment to excellence and innovation in the field of renewable energy storage. Founders Sascha Berthold, Thomas Gebauer, and Thorsten Seipp, alongside management member Kees van de Kerk, continue to drive the company's mission to enhance the consumption of self-generated renewable energy.
INERATEC
Seed Round in 2018
INERATEC is a company dedicated to developing innovative synthetic fuels and power-to-X plants that aim to replace fossil fuels with carbon-neutral alternatives. By focusing on sustainable energy solutions, INERATEC produces renewable hydrogen and utilizes greenhouse gases like carbon dioxide to create e-kerosene, carbon dioxide-neutral diesel, synthetic waxes, and methanol. These products allow chemical plant operators to power their facilities with synthetic fuels derived from climate-neutral energy sources, thereby reducing chemical waste and enhancing climate protection. Through its efforts, INERATEC contributes to the advancement of a post-fossil fuel economy and supports the transition to sustainable energy in transportation and everyday products.
envelio
Seed Round in 2018
envelio GmbH, founded in 2017 and based in Cologne, Germany, specializes in developing software solutions for the planning and operation of energy networks. The company offers the Intelligent Grid Platform (IGP), a modular software system designed to assist distribution grid operators in digitizing and automating their processes. This platform integrates algorithms based on artificial intelligence and mathematical optimization to facilitate the management of distribution grids, allowing for the seamless incorporation of numerous distributed energy resources and smart meter data. Key features of the IGP include applications for data quality management, automated grid planning, and operational support for congestion management in response to potential grid bottlenecks. By enabling grid operators to optimize their operations, envelio plays a crucial role in advancing the energy transition and enhancing grid sustainability and flexibility.
node.energy
Venture Round in 2017
node.energy GmbH, established in Frankfurt am Main, Germany in 2016, specializes in providing Software-as-a-Service (SaaS) solutions for optimizing local energy microgrids. The company's flagship product, opti.node, enables industrial and commercial entities with on-site power generation to reduce energy costs and carbon footprint by offering regulatory and commercial management tools. node.energy caters primarily to energy managers of commercial buildings and metering service providers, aiming to streamline administrative tasks, facilitate energy cost savings, and ensure compliance with current regulations.
Volterion
Series A in 2017
Volterion, founded in 2015 as a spin-off from the Fraunhofer Institute UMSICHT, specializes in the development and manufacturing of redox flow battery stacks and systems designed for efficient commercial energy storage. The company focuses on creating innovative energy solutions, such as the powerRFB, which is a scalable battery system tailored to meet the demanding requirements of industrial applications. Volterion utilizes patented materials and advanced manufacturing techniques, including fully automated processes, to produce durable, cost-effective energy storage solutions. The company's technology has garnered multiple awards, reflecting its commitment to excellence and innovation in the field of renewable energy storage. Founders Sascha Berthold, Thomas Gebauer, and Thorsten Seipp, alongside management member Kees van de Kerk, continue to drive the company's mission to enhance the consumption of self-generated renewable energy.
Enoware
Seed Round in 2015
Enoware specializes in mobile sensor systems designed for the geothermal energy sector. The company offers a miniaturized geothermal measuring capsule that enhances the efficiency and quality of geothermal probes. Its technology allows users to access vital environmental data through an online portal and smartphone application, facilitating system monitoring, optimization, and operational safety. With over 300,000 geothermal probes currently in operation in Germany and an annual addition of 20,000 new systems, Enoware is positioned to expand its customer base and contribute to the growing demand for sustainable energy solutions.
Solandeo
Seed Round in 2015
Solandeo GmbH, founded in 2011 and based in Berlin, Germany, specializes in manufacturing and marketing metering and power management solutions. The company focuses on providing energy management solutions tailored for renewable energy plants, aiding in the detection of actual power output for the green electricity market. Solandeo offers services such as real-time measurement data provision, data logging, and monitoring of measured installations to support grid connection and feed-in meters. Additionally, it provides cost-effective and innovative solutions for smart metering, remote control technology, and technical upgrades for wind turbines, solar panels, and biogas heating plants.
OneShore
Seed Round in 2015
OneShore Energy, established in 2013, specializes in designing, engineering, and operating off-grid solar-diesel-hybrid systems for power generation. Based in Berlin, Germany, the company caters to diverse sectors such as hospitals, hotels, off-grid communities, and industrial facilities in Germany, Greece, Tanzania, and Kenya. OneShore's offerings include software tools like OneAnalyser for demand analysis, OneOptimiser for remote monitoring, and OneDesign for system modeling. The company aims to optimize energy use, reduce fuel consumption, and provide certified fuel-saving reports to its clients.
Chargepartner
Seed Round in 2014
Chargepartner GmbH is a company based in Walldorf, Germany, specializing in e-mobility solutions within German-speaking countries. It provides a comprehensive service for electric vehicle charging projects, encompassing planning, rollout, operation, and billing, all delivered through an integrated Software-as-a-Service platform. The company features various modules, including the ChargeMaster-Module for managing charging stations and sessions, and the ElectroMobility-Module, a web-based interface for users and operators. Additionally, Chargepartner offers ChargeCall, a phone-based access system that activates charging stations without requiring a compatible RFID interface. The company also provides independent consulting and support for charging infrastructure, including project implementation and ongoing operational services. Chargepartner's focus on developing innovative control and incentive systems aims to engage consumers in climate protection efforts, promoting the use of climate-neutral energy.
Heliatek
Series C in 2014
Heliatek GmbH, founded in 2006 and based in Dresden, Germany, specializes in the development and manufacture of organic photovoltaics (OPV) solutions, particularly HeliaSol and HeliaFilm. These innovative products are designed for integration into various building surfaces, including horizontal, vertical, and curved structures, making them suitable for retrofitting existing buildings as well as for new construction. Heliatek's OPV technology is characterized by its ultra-lightweight and flexible nature, contributing to environmentally friendly energy solutions. The company serves a diverse clientele, including those in the building and construction materials industry, automotive manufacturers, and suppliers, and has established strategic partnerships with firms such as AGC Glass Europe and Reckli China. With approximately 160 employees, Heliatek is at the forefront of advancing organic electronics, utilizing advanced roll-to-roll manufacturing processes in controlled environments to produce its solar films.
viamon
Seed Round in 2014
viamon GmbH is a company based in Kaiserslautern, Germany, specializing in GPS-based geo-fencing anti-theft systems specifically designed for photovoltaic (PV) plants. The company develops and markets innovative monitoring and theft protection solutions for PV modules, inverters, and high-quality goods. Its offerings include 24/7 alarm services facilitated through a control center, as well as web portals and mobile applications compatible with smartphones and tablets. viamon operates in various international markets, including Germany, Spain, Switzerland, Namibia, Chile, and the Dominican Republic, providing enhanced security for renewable energy assets and ensuring protection against theft.
Next Kraftwerke
Venture Round in 2013
Next Kraftwerke GmbH is a German company based in Cologne that operates a large-scale virtual power plant (VPP) and serves as a certified power trader on various European energy exchanges. Founded in 2009, the company specializes in digitally aggregating and managing a diverse network of medium and small-scale power-producing units, including bioenergy, wind, and solar generators, alongside power-consuming units. Through its innovative VPP, Next Kraftwerke effectively connects these decentralized energy resources, facilitating efficient power supply and demand management. This digital platform enables the smart trading of generated and consumed power, contributing to the integration of renewable energy into European power markets.
Kiwigrid
Venture Round in 2013
Kiwigrid GmbH is a German company based in Dresden that specializes in developing and operating a smart grid energy management platform tailored for the European market. Founded in 2011, Kiwigrid offers a range of solutions that facilitate the integration of decentralized energy producers, storage systems, and consumers, while also supporting electric mobility. Its product suite includes tools for home and industrial energy management, which provide monitoring of energy consumption, system modeling, and data analysis. The company also features a virtual power plant system that allows for energy trading and remote site control. Kiwigrid's solutions are designed to enhance transparency in energy usage, automate energy generation and consumption, and optimize energy costs for clients in various sectors including utilities, automotive, and real estate.
Subitec
Series B in 2012
Subitec GmbH, founded in 2000 in Stuttgart, Germany, specializes in the manufacture of microalgae biotechnology cultivation equipment and turn-key production systems. The company offers a range of products, including Flat Panel Airlift Photobioreactors with various cultivation volumes, along with essential components such as lighting systems, media feeds, temperature control, and harvesting solutions. Subitec's systems encompass engineering and construction for outdoor and indoor applications, as well as compact and hybrid systems, catering to diverse markets including nutraceuticals, food and feed, aquaculture, cosmetics, and energy. Originating as a spin-off from the Fraunhofer Institute for Interfacial and Biotechnology, Subitec focuses on enabling clients to produce sustainable bio-products from high-quality microalgae.
Smart Hydro Power
Series A in 2012
Smart Hydro Power GmbH is a company based in Feldafing, Germany, that specializes in the development and manufacture of kinetic micro-hydro power plants. Founded in 2010, it evolved from a group of turbine developers into a provider of comprehensive renewable energy solutions, focusing on decentralized electrification projects. The company offers a range of products, including smart turbines, smart packages, and an intelligent energy management system, designed to meet the needs of remote and off-grid locations. Smart Hydro Power's systems are eco-friendly, fish-friendly, and require minimal infrastructure, making them a viable alternative for rural electrification. By combining simplicity, competitiveness, and completeness in its offerings, the company aims to enhance productivity and improve living standards in underserved communities.
Enercast
Series A in 2012
enercast GmbH is a technology provider based in Kassel, Germany, specializing in renewable energy forecasting. Established in 2011, the company offers software-as-a-service solutions that deliver precise power forecasts for wind and solar energy plants, facilitating the integration of renewable resources into electricity grids and energy markets. Enercast's self-learning software utilizes artificial intelligence to provide reliable weather insights, aiding clients in their decision-making processes. Additionally, the company has developed the enercast city system, a dashboard that visualizes the expected share of renewable energy from various sources. Enercast's services extend across 20 countries, covering a total of 160 GW of installed capacity and delivering over 100 million forecast data points globally.
Smartblue
Seed Round in 2011
Smartblue specializes in developing and operating software solutions aimed at monitoring and optimizing zero-emission energy systems, particularly photovoltaic and energy storage systems. As a hardware-independent provider, Smartblue offers a centralized web application called the "Smart Control" Operations and Control Center. This comprehensive software service facilitates maintenance, life-cycle management, production forecasting, and remote control of energy systems. By leveraging automation, smart failure detection, and big data analysis, Smartblue enables its clients to effectively monitor the operating performance of their photovoltaic systems, thereby reducing overall operational costs and enhancing efficiency.
Entelios
Series A in 2011
Entelios is a clean energy supplier founded in 2010, specializing in demand response and virtual power plant solutions. Acquired by EnerNOC in 2014, the company focuses on the management of distributed energy resources across industrial, commercial, and institutional sectors. Entelios enables its clients to enhance their sustainability practices by providing products that facilitate the integration of renewable energy and help manage system imbalances. This approach allows both large and small businesses to adopt greener operations, contributing to a more sustainable energy future.
Next Kraftwerke
Seed Round in 2010
Next Kraftwerke GmbH is a German company based in Cologne that operates a large-scale virtual power plant (VPP) and serves as a certified power trader on various European energy exchanges. Founded in 2009, the company specializes in digitally aggregating and managing a diverse network of medium and small-scale power-producing units, including bioenergy, wind, and solar generators, alongside power-consuming units. Through its innovative VPP, Next Kraftwerke effectively connects these decentralized energy resources, facilitating efficient power supply and demand management. This digital platform enables the smart trading of generated and consumed power, contributing to the integration of renewable energy into European power markets.
Heliatek
Series B in 2009
Heliatek GmbH, founded in 2006 and based in Dresden, Germany, specializes in the development and manufacture of organic photovoltaics (OPV) solutions, particularly HeliaSol and HeliaFilm. These innovative products are designed for integration into various building surfaces, including horizontal, vertical, and curved structures, making them suitable for retrofitting existing buildings as well as for new construction. Heliatek's OPV technology is characterized by its ultra-lightweight and flexible nature, contributing to environmentally friendly energy solutions. The company serves a diverse clientele, including those in the building and construction materials industry, automotive manufacturers, and suppliers, and has established strategic partnerships with firms such as AGC Glass Europe and Reckli China. With approximately 160 employees, Heliatek is at the forefront of advancing organic electronics, utilizing advanced roll-to-roll manufacturing processes in controlled environments to produce its solar films.
enymotion
Venture Round in 2008
Enymotion specializes in the development and production of ultra-quiet, zero-emission energy sources tailored for mobile applications. The company focuses on creating innovative mobile fuel cell systems that provide a self-sufficient power supply for recreational use, such as in caravans, boats, and utility vehicles. These systems utilize the caloric equivalent of conventional fuels or liquid gas, delivering power without noise or exhaust emissions. By enabling consumers to consume power independently, Enymotion positions itself as a leader in sustainable energy solutions for outdoor and recreational lifestyles.
LaTherm
Series A in 2008
LaTherm specializes in providing low CO2 heating solutions and hot water systems to various sectors, including hospitals, schools, and commercial properties in Germany. The company focuses on collecting industrial waste heat from sources such as steel mills, chemical plants, and waste incinerators, which is typically released into the environment. This waste heat is captured in specially-equipped mobile heat storage containers and transported to medium-sized properties, where it is integrated into existing heating systems. By utilizing this method, LaTherm offers stable and predictable pricing for its heating services while promoting environmentally sustainable practices.
Subitec
Series A in 2007
Subitec GmbH, founded in 2000 in Stuttgart, Germany, specializes in the manufacture of microalgae biotechnology cultivation equipment and turn-key production systems. The company offers a range of products, including Flat Panel Airlift Photobioreactors with various cultivation volumes, along with essential components such as lighting systems, media feeds, temperature control, and harvesting solutions. Subitec's systems encompass engineering and construction for outdoor and indoor applications, as well as compact and hybrid systems, catering to diverse markets including nutraceuticals, food and feed, aquaculture, cosmetics, and energy. Originating as a spin-off from the Fraunhofer Institute for Interfacial and Biotechnology, Subitec focuses on enabling clients to produce sustainable bio-products from high-quality microalgae.
Heliatek
Seed Round in 2006
Heliatek GmbH, founded in 2006 and based in Dresden, Germany, specializes in the development and manufacture of organic photovoltaics (OPV) solutions, particularly HeliaSol and HeliaFilm. These innovative products are designed for integration into various building surfaces, including horizontal, vertical, and curved structures, making them suitable for retrofitting existing buildings as well as for new construction. Heliatek's OPV technology is characterized by its ultra-lightweight and flexible nature, contributing to environmentally friendly energy solutions. The company serves a diverse clientele, including those in the building and construction materials industry, automotive manufacturers, and suppliers, and has established strategic partnerships with firms such as AGC Glass Europe and Reckli China. With approximately 160 employees, Heliatek is at the forefront of advancing organic electronics, utilizing advanced roll-to-roll manufacturing processes in controlled environments to produce its solar films.
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