Top 15 Renewable Energy Startup Investors in Austria (June 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

• Emmi AI — Emmi AI thinks that the nexus of physics and artificial intelligence represents the next frontier in industrial engineering. The world of large-scale engineering and manufacturing is ripe for transformation, yet today's innovation processes are hindered by slow, costly simulations and prohibitive computational requirements.
• Voltrac — Voltrac is a robotics company that develops an autonomous, fully electric tractor platform called THOR, designed to operate in demanding environments for both agricultural and logistics use. THOR employs per-wheel electric motors instead of a conventional drivetrain, reducing mechanical complexity and maintenance requirements. It runs on swappable200 kWh battery packs, enabling long-duration operations and continuous work cycles. The platform supports a standard three-point hitch (Category II) and can be configured with a flatbed, making it versatile for fieldwork or transport tasks. Voltrac’s autonomy system combines reinforcement learning with real-time sensor data to adapt driving behavior and implements to changing terrain and crop conditions. Beyond farming, THOR is also intended for frontline logistics missions, with modular designs that can support cargo transport and resilience in challenging settings.
• 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

• Spoor — Spoor's software uses advanced computer vision and AI to detect, track, and classify birds at wind farms
• DEPsys — Our advanced smart grid solutions and insights empower electricity DSOs and simplify their journeys through the energy transition.
• Sensorfact — Sensorfact offers smart energy savings in the manufacturing industry. The company is a smart advisor for the industry who translates sustainability to day-to-day language and specific actions. No complex sensor technology, no complex software and no complex business models. We make sustainability understandable and transparant.

Portfolio highlights

• fynk — Create, edit, negotiate and sign contracts quickly with fynk. Give your team back valuable time. Test it now for free!
• reebuild — reebuild is the developer of an online application for construction companies designed to automate material procurement and logistics. Their digital infrastructure platform connects construction companies, industry, and trade, enabling clients to build their invoices and environmental data in a secure cloud and take over administrative processes inthe background.
• Viora - visible through confidence — Ada Growth is on a mission to put a mentor in every woman's pocket. We combine AI with microlearning to provide professional growth and development tools for women in the workplace and help companies attract, retain, and grow female talent. Download the Ada App today!The Ada App is a microlearning app that provides 2 minute short formvideos, miniquizzes, action items, and summaries that lead to long-term behavioral changes in the workplace. It also contains a digital mentor that can provide dynamic coaching in the spirit of the Ada App library of content, so that Ada App users have access to casual lessons when they have a few minutes a day as well as immediate feedback for any upcoming situation.Ada Growth serves the B2B enterprise and SME space primarily to companies with over 400 employees. We sell a professional growth / EdTech / L&D solution to HR, Employee Training and DEI administrators. We are vertical agnostic and provide a growth experience for both white collar and blue collar workers. Most EdTech solutions tend to flow to the corporate office layer of an enterprise, where this is a saturation of resources available. Many of our users have not been given professional growth tools purposefully built for them before or made flexible for their lifestyle, unlocking value for both the employee as well as the employer.We are the first enterprise-ready professional EdTech solution built specifically for women.

Portfolio highlights

• Tundr — Tundr offers smartcard to companies for sustainable mobility.
• Sinergy Flow — We are developing a redox flow battery based on earth abundant and low-cost material which is fully compliant with the Circular Economy principles.
• Innoviz Technologies — A leading supplier of high-performance, automotive-grade LiDAR sensor platforms.

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.
• 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.
• Betterspace — Betterspace is innovative and holistic solution provider for the reliable and efficient digitization in the hotel industry. Betterspace is 360 ° solution provider for the digitization of hotels. Their goal is to partner with in intelligent and smart software as part of digitization and to simplify day-to-day work as a hotelier. They ensureincreased sales, reduced operating costs and optimized operating processes in hotel.

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

• Sunhat — Sunhat empowers sustainability teams to deliver audit-ready responses for customer questionnaires, reporting checklists and ESG ratings.
• gridscale — Private & Public Cloud von gridscale. Drag. Drop. Klick. Fertig - Klicken statt coden! So leicht bringst du deine Anwendungen in die Cloud.
• 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.

Portfolio highlights

• Diamens — Diamens is a company focused on femtech that develops a non-invasive menstrual blood-based molecular diagnostic to detect women-specific diseases like endometriosis.
• Respory — Respory provides real-time people-tracking using proprietary radar sensors, all without capturing personal data. Our scalable sensor network, powered by AI-driven algorithms, delivers precise customer journey insights, critical for in-store performance in retail.
• 2nd Cycle — 2nd Cycle creating a cost-effective, fully automated, and scalable solution for modules for a second life cycle.

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

• raicoon — SaaS solution for autonomous operations of renewable energy

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.
• Cajo Technologies — Laser Marking - Cajo turnkey solutions for traceability & product markings. Easy to use & optimized for industrial production processes.
• NLM Photonics — Data centers consume enormous amounts of power; our faster, energy-efficient electro-optic modulation solution moves data across the internet.