Top 15 Renewable Energy Startup Investors in Austria in May 2026

Portfolio highlights

• Hydrogrid — All-in-one solution for optimizing hydropower plants. Increase revenues by up to 18%, reduce spill by up to 12%, and save valuable time with Hydrogrid Insight.
• watttron — Watttron invents a revolutionary heating system that can heat up surfaces heterogeneously.Watttron develops an innovative heating technology that can be used in various industrial processes. It is superior to current heating systems in many ways and offers a number of advantages. On the following pages, you will find information about possibleapplications and opportunities.The company is located in the Technologie- und Gründerzentrum Freital – a technology and start-up center on the outskirts of Dresden, the state capital of Saxony.
• Neural Concept — Neural Concept is the first AI software for enhanced engineering. Leverage your historical CAD and CAE data to drastically shorten and improve your design cycles.

Portfolio highlights

• Fuchs & Eule — VALYRIA is an expert in buying and selling apartment buildings.
• ETPA — Etpa, the energy trading platform driving the sustainability transition. Join us for transparent trades, innovative solutions, and the fastest platform.
• Frequenz — Frequenz empowers developers with innovative tools to orchestrate Decentralized Energy Resources (DERs) efficiently. Join us revolutionizing the way the world manages power.

Portfolio highlights

• Podero — Podero energy flexibility software helps utilities steer devices, trade their flexibility on spot and balancing markets and launch new energy products.
• UniteLabs — UniteLabs provides the foundational operating system for AI-driven lab automation in life science. It accelerates scientific discovery by closing the loop with a unified data and automation infrastructure, seamless integration, and intelligent control. Our platform empowers ambitious biotech companies, big pharma, integrators, and hardware vendorsby offering bidirectional connectors for diverse lab equipment, a scalable cloud platform with an open API, and a powerful workflow engine with an integrated compute environment. This allows for the creation of sophisticated, modular workflows, and enables rapid automation development through our Lab-as-Code environment, featuring a dynamic Python SDK and application-specific libraries.
• Circonomit — Building the world's environmental data infrastructure - We are the sustainability counterpart to what Excel, Sheets and Datev are to financial planning and accounting. Our mission is to create the first decision intelligence platform to bridge sustainability and finance by building the global standard for the collection and aggregation ofcorporate environmental data.

Portfolio highlights

• Neo4j — Connect data as it's stored with Neo4j. Perform powerful, complex queries at scale and speed with our graph data platform.
• Blackwood Seven — Blackwood Seven is a media analytics platform which strives to increase the effect of company’s media spend using our predictive analytics framework built on machine learning and artificial intelligence. Using real-time modelling and advanced KPI prediction we are able to increase a company’s media ROI by up to 15-25%.
• Verto Analytics — Verto Analytics (Verto) operates a passive metering panel that provides researchers, advertisers, and publishers the data they need to keep up with the rapid and changing pace of consumer media consumption on every app, device, service, and platform. This ongoing, longitudinal panel captures a wide breadth of behaviors—all enriched to clients’behavioral analysis or custom survey studies. Our single-source, passive metering data sets provide the information needed to understand the full digital footprint of the U.S. population. Our Data Labs are located in the US, and in Helsinki, Finland. http://www.vertoanalytics.com.

Portfolio highlights

• fynk — Create, edit, negotiate and sign contracts quickly with fynk. Give your team back valuable time. Test it now for free!
• Balun — Balun is a machine learning platform that forecasts electricity generation with unrivaled precision by analyzing multiple meteorological and energy market inputs, allowing renewable energy producers to optimize production, reduce penalties, and assure a stable, efficient grid.
• Donnerstag.ai — Build, run and scale financial reconciliations across your core financial data and systems.

Portfolio highlights

• Vytal — Start the Packaging Revolution! We are offering smart & reusable To-Go Packaging-as-a-Service to gastronomy clients & consumers.In Germany the consumption of take-away, convenience and delivery food & drinks is responsible for about 281 kilotons of single-use packaging waste for immediate consumption and is growing at double digitrates. Most of the time, To-Go food containers, snack boxes or coffee cups have a very short life-span of only 30 minutes after which they are tossed into trash (or litter parks, beaches & the ocean). This is not only a giant waste of economic resources as each single use costs between 15 and up to 0,60€ for a stable bowl/box with a lid. It is a horrendous waste of environmental resources (wood, water, crude oil, metals & energy) that are used to produce this packaging. Therefore, a single use packaging not weighing more than 30 grams can easily come with an ecological backpack of more than 8 kilograms when taking into account all the resources used in production (material intensities taken from Wuppertal Institute for Climate, Environment and Energy). Looking at GHG emissions, the picture is similarly bleak: Using CO2 emission factors and the detailed material mix of the single-use packaging waste analyzed by NABU (German Nature and Biodiversity Conservation Union), the 281 thousand tons waste from To-Go consumption generated around 556 thousand tons of CO2 or the equivalent of 195k passenger cars per year (assuming an average distance travelled of 15,000km). With the expected rise of take-away, convenience and delivery food, the related emissions are expected to increase at double digit rates as waste volume is expected to increase and as we saw a shift to plastics relative to cardboard or other materials. While there is a growing awareness of the problem, especially in Germany, there is no scalable solution yet and the commonly used alternative of nature-based & ‘biodegradable’ materials like bagasse or PLA also require many resources for production & transport, and have to be incinerated or go to landfill after use as there is currently no way to compost them.
• Xampla — Xampla's natural plant polymer technology is the innovative technology powering materials to change the world with plastic-free replacements and more.
• Waterly — Dramatically simplify your water operations.

Portfolio highlights

• OPTIMUSE — Optimuse provides an AI-based solution that supports the pre-design phase of building renovation. The platform converts building data into a digital twin to create accurate models for planning. It integrates data such as room types, thermal properties, and HVAC systems. The system runs energy simulations to calculate heating, cooling, lighting, andequipment needs. It helps design technical systems by defining the quantity, sizing, and configuration of components. The platform develops renovation plans by modeling financial, energy, and emissions outcomes. It also offers tools for cost calculation, performance monitoring, and collaboration across project teams.
• Planted Green — Planted Green plants mixed forests to compensate for CO2 emissions.
• HelloBello — HelloBello offers freshly cooked and cooled delivered human-grade food tailored to each dog’s nutritional needs. HelloBello is a PetTech company with a strong focus on the German speaking markets (for now). HelloBello’s personalized meals are free of any by-products and are portioned, packaged, and delivered directly to your door. By working with aspecialized veterinarian, HelloBello is able to derive each dog’s exact nutritional needs based on a proprietary algorithm. The recipes are made of natural sources like millet and seaweed, instead of heavy use of supplements, which makes it easier for the dog to absorb and get true nutritional benefits.Our credo in German is " ... Frisch. Individuell. Geliefert. - Frischfutter ist einfach besser ..."

Portfolio highlights

• Temelion — Temelion is an AI copilot to assist building engineers during their pre-construction workflows so they can deliver high quality projects on time, faster while preserving their margins.
• iNGage — iNGage is a manufacturer of high-performance inertial MEMS navigation sensors for high-volume autonomous mobility markets
• Innoviz Technologies — A leading supplier of high-performance, automotive-grade LiDAR sensor platforms.

Portfolio highlights

• raicoon — SaaS solution for autonomous operations of renewable energy

Portfolio highlights

• zolar — With the zolar online configurator, homeowners can customise the components of their PV system to suit their individual requirements and receive personal assistance from one of our solar energy experts at the same time. zolar’s extensive network of local partner companies takes care of the installation on site. The Berlin-based start-up employsaround 200 employees across Germany and pursues the vision of installing a PV system on every roof in the world in order to make private households more independent from the mains grid. The dovetailing of energy generation, electricity storage and mobility allows customers to design electrified and smart households. As a next green energy company, zolar enables its customers to become energy providers for their own four walls, neutralise their carbon footprint and, in turn, make an effective contribution to climate protection.
• Deepki — Deepki accelerates transition towards net zero and sustainability, powered by ESG and data.
• Fluctuo — Keeping track of all the new mobility services requires a constant monitoring process, a reliable and exhaustive data source and a complete set of analytics tools.By providing powerful SAAS solutions to collect, analyze and visualize data, fluctuo reduces the time, efforts and costs to supervise & manage this new generation of transportationservices.

Portfolio highlights

• Renewabl — Renewabl is the platform that allows companies to meet their decarbonisation targets quickly and efficiently by matching renewable energy certificates directly from hydro, wind and solar on a 24/7-hour basis.
• Voltfang — We integrate used electric car batteries into a battery storage system and thus build up a decentralized storage network.
• Nobile Group — Nobile is an energy sharing hub platform, directly connecting the producers and suppliers of renewable energy

Portfolio highlights

• Swarmia — Build better software faster with insights that power your whole engineering organization. Get started with a demo or a free 14-day trial.
• Druid AI — DRUID is an AI platform that allows companies to automate processes by designing and deploying UiPath RPA integrated chatbot virtual assistants.
• Starship Technologies — The future of delivery - today!

Portfolio highlights

• ZELF — Zelf is a neobank targeting Gen Z to bring financial services to where they live – in messengers. This is the lightest bank with the easiest onboarding process taking up to 60 sec to issue a card, receive and send money without leaving the messenger. We are uniquely offering AI-powered voice control over the most of financial operations, whichmakes us first voice-enabled banking for Gen Z who prefers voice interactions with their devices.
• Kaia Health — Kaia Health is a digital therapeutics company that creates evidence-based treatments for a range of disorders including back pain and COPD. Working with experts in various medical fields, the company uses machine learning to deliver individualized app interventions that aim to empower and motivate patients to take control and self-manage theircondition with digital alternatives from their home using devices they already own (i.e. smartphones and tablets).The company has enrolled more than 400,000 users to date in its digital therapy program. It was founded in 2016 and is headquartered in Brooklyn, New York.
• neoom — Humanity is finally saying goodbye to the energy generation from oil, gas, coal or nuclear fission, to renewable energy from wind, water, and sun. This energy transition is THE megatrend of our time! The challenges include the rapid increase in electric mobility and the increasing electricity demand for heating and cooling buildings. However, thegeneration of energy from renewable sources is characterized by certain volatility, i.e. fluctuations. We take on these challenges with our neoom battery storage and e-mobility charging solutions. With an innovative energy storage system, every private and commercial user can provide cheap, safe and above all clean energy on-site and react to the flexibility of the market. Our neoom hardware products are unique in design, functionality, and quality. Our intuitive, device-open software NTUITY represents the missing link in the field of energy management. Energy from renewable sources can be stored and used with maximum efficiency through our solutions. And best of all: we can deliver today! Take the first step into a sustainable life, visit our website, call us and now connect to neoom group.

Portfolio highlights

• vialytics — vialytics is a system solution for the road maintenance management of municipalities. Their integrated road monitoring system enables municipal administrations collecting data of their roads and monitoring the results. Predictive Features enrich the user experience by data matching background processes.
• Hololight — Leading XR streaming technology platform, support for all XR Devices and an immersive AR and VR experience.
• Validaitor — Validaitor is the one-stop-shop that brings together AI red-teaming, governance, risk management and compliance management in a single environment.

Portfolio highlights

• Numbat — Numbat is a clean-tech company from Kempten (Allgäu). The competence lies in the development and production, as well as the operation of High-Power charging solutions with integrated battery storage system. The goal is to establish Europe's densest High-Power charging infrastructure to support e-mobility and its challenges. The battery storagereduces electricity costs and eases the burden on grids, while the integrated fast charging station allows customers/visitors/employees to fully charge their electric vehicles within 15 minutes. Depending on the location, the Numbats can be provided free of charge in a platform model. With its patented climate protection technology and multi-lifecycle approach, the Numbat is the most sustainable solutions on the market.
• ESFORIN SE — ESFORIN SE is a fully digital energy company, offering modularly integrable energy solutions – for both, power and gas.
• Efficient Energy Technology — Efficient Energy Technology makes renewable energy simple, safe, and dependable for everyone. Efficient Energy Technology develops a small power plant consisting of photovoltaic and storage for complete self-installation.