Top 25 Sustainability Angel Investors in Austria (June 2026)

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

• eco.mio — eco.mio enables companies to reach their climate targets while realizing significant savings: Incentivize employees to travel consciously with eco mio's end-to-end integrated software solution.
• 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.
• 123-Transporter — Transporter mieten ab nur 45€ Volle 24h | Unlimitierte KM | digitale Vignette inkl. Einfach. Flächendeckend. Kundenzentriert: https://de.trustpilot.com/review/123-transporter.at

Portfolio highlights

• Inoqo — In a world of over, mis- or blurred information, inoqo wants to provide consumers with scientific-based data on the environmental, social and biodiversity impact of familiar grocery products. Our mission is to help all of us aligning our daily purchasing decisions to our key concerns so that we can actively contribute to a sustainableproduction-consumption cycle.The app uses a specific innovative technology that can passively and smartly track the user’s grocery basket for informing them about -for example- the CO2 impact of their purchase and how aligned it is to their environmental priorities or social valuesThe solution will actively recommend alternative products of lower impact and encourage them through personalized content, gamification and community challenges to further pursue a sustainable lifestyle.We strongly believe that our daily habits can change the world. Our vision is to enable millions of consumers around the globe to learn why and how their consumption decisions impact biodiversity, climate and their own well-being. We want to accelerate the change towards sustainable production: as users consume more responsibly, they create healthy competition between companies who start to produce responsibly.We have ten years left to cut our CO2 emissions by half. From now on, every action counts. Join inoqo.
• Paired — Paired is your guide to improve your relationship via fun daily questions, couple quizzes, couple games and relationship advice. Try the Paired couples app free now.
• Mimo — Mimo is an app that teaches the computer science in a fun and interactive way. Mimo’s lessons are fun and interactive, fit into people’s everyday lives, and lead them to make a habit of self-improvement. Getting through to more than 1.5 million people and achieving completion numbers far above the industry average, Mimo is well on its way tobecoming the one-stop shop for education and entertainment on the go.

Portfolio highlights

• Glacier — Glacier expertise in providing step-by-step innovative solutions that help in carbon reduction from every company globally.

Portfolio highlights

• Lingoda — Learn a new language effectively with our online language courses! English, German, French and Spanish online, in live video group & private classes.
• TrueHome — TrueHome is a Mexican real estate company that aims to improve the real estate services in the country by providing the best selling experience for homeowners and taking care of the process from end to end. They offer their clients transparent processes about procedures and details that can be confusing, boring, and long. Their legal advisorsensure that the process is in order from documents and paperwork, to the contract and the credit process.TrueHome was founded in 2017 by Raúl Villarreal and is headquartered in Mexico City.
• Flash Coffee — Flash Coffee is a tech-enabled coffee chain that customers use their app to order and pay online, choosing to pick up orders from one of the Flash Coffee’s storefronts or order for delivery through major platforms in each market. Flash Coffee was founded in 2019 and is headquartered in Singapore.

Portfolio highlights

• Glacier — Glacier expertise in providing step-by-step innovative solutions that help in carbon reduction from every company globally.
• Leaders21com — They offer our customers an exciting portfolio of practical training and services. Based on our many years of experience and our specially developed leadership approach. Flexibility and situational action are essential leadership qualities. That is why we also structure our cooperation with our customers in exactly the same way - flexible andadapted to individual requirements. Digital and analog.
• Speedinvest Heroes Consulting — Speedinvest Heroes Consulting GmbH is an Human Resource company.

Portfolio highlights

• Inoqo — In a world of over, mis- or blurred information, inoqo wants to provide consumers with scientific-based data on the environmental, social and biodiversity impact of familiar grocery products. Our mission is to help all of us aligning our daily purchasing decisions to our key concerns so that we can actively contribute to a sustainableproduction-consumption cycle.The app uses a specific innovative technology that can passively and smartly track the user’s grocery basket for informing them about -for example- the CO2 impact of their purchase and how aligned it is to their environmental priorities or social valuesThe solution will actively recommend alternative products of lower impact and encourage them through personalized content, gamification and community challenges to further pursue a sustainable lifestyle.We strongly believe that our daily habits can change the world. Our vision is to enable millions of consumers around the globe to learn why and how their consumption decisions impact biodiversity, climate and their own well-being. We want to accelerate the change towards sustainable production: as users consume more responsibly, they create healthy competition between companies who start to produce responsibly.We have ten years left to cut our CO2 emissions by half. From now on, every action counts. Join inoqo.

Portfolio highlights

• smaXtec — We offer professional dairy farmers the most technologically advanced health system, based on measuring inner body temperature, rumination and activity inside the cow's rumen. Farmers achieve stable high milk yields, reduce the use of antibiotics and significantly increase animal welfare. The 24/7 health monitoring system increases theeffectiveness of all work processes on professional dairy farms. smaXtec makes a decisive contribution to the stability and profitability of industrial dairy farming worldwide - while at the same time increasing sustainability.

Portfolio highlights

• Glacier — Glacier expertise in providing step-by-step innovative solutions that help in carbon reduction from every company globally.

Portfolio highlights

• Glacier — Glacier expertise in providing step-by-step innovative solutions that help in carbon reduction from every company globally.

Portfolio highlights

• Flatout Technologies — The "Internet of Things" starts at home! It is currently one of the fastest growing and hottest technological areas and many companies would love to enter it as soon as possible. We noticed that Telcos, Utilities & Retailers need a single point of contact that can provide them with a future-proof Smart Home solution. This is whereFlatout Technologies comes in, because we offer these companies an end to end solution based on our open, cloud based platform, called the FlatCloud. Our Smart Home as a Service offering encompasses our Operating System, Service & Support, Managed Hosting, a rebrandable user-friendly interface and consultancy in device management and the IoT Market. Last but not least, we believe that crowdsourcing will lead to success. Our platform has been built on web-based technology so our software works regardless of iOS or Android. Use Google Chrome, Safari, Firefox etc. to access the platform regardless of the device in your hands and make your home more energy efficient, secure and comfortable. By providing both a front-end API and a back-end API, the goal is to give developers the chance to program applications for the home and share them with the world.

Portfolio highlights

• Ataleo — Ataleo provides digital solution to guide through and automate processes.
• Necture — NECTURE empowers businesses to unlock the full potential of fleets, seamlessly bridging the gap between mobility and energy. Combining human-driven information with data-driven intelligence, we provide tailored solutions that optimize operations, reduce costs, and achieve sustainability goals. Our AI-driven technology platform offers advanced dataanalytics, automation, and user experience for efficient fleet management. Going beyond mere intelligence, we translate data into real-world actions, minimizing environmental impact and driving a cleaner, greener future. NECTURE is building a world where electric fleets are not only possible, but thrive.
• WeAreDevelopers — Our vision is to become the world’s leading community for developers. Our mission is to provide developers with the things they need and love. We inspire, entertain, motivate and educate developers. We give developers a voice and we connect them with each other. We give developers visibility and attention. We provide them with opportunities andhelp them grow.

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

• Inoqo — In a world of over, mis- or blurred information, inoqo wants to provide consumers with scientific-based data on the environmental, social and biodiversity impact of familiar grocery products. Our mission is to help all of us aligning our daily purchasing decisions to our key concerns so that we can actively contribute to a sustainableproduction-consumption cycle.The app uses a specific innovative technology that can passively and smartly track the user’s grocery basket for informing them about -for example- the CO2 impact of their purchase and how aligned it is to their environmental priorities or social valuesThe solution will actively recommend alternative products of lower impact and encourage them through personalized content, gamification and community challenges to further pursue a sustainable lifestyle.We strongly believe that our daily habits can change the world. Our vision is to enable millions of consumers around the globe to learn why and how their consumption decisions impact biodiversity, climate and their own well-being. We want to accelerate the change towards sustainable production: as users consume more responsibly, they create healthy competition between companies who start to produce responsibly.We have ten years left to cut our CO2 emissions by half. From now on, every action counts. Join inoqo.

Portfolio highlights

• Inoqo — In a world of over, mis- or blurred information, inoqo wants to provide consumers with scientific-based data on the environmental, social and biodiversity impact of familiar grocery products. Our mission is to help all of us aligning our daily purchasing decisions to our key concerns so that we can actively contribute to a sustainableproduction-consumption cycle.The app uses a specific innovative technology that can passively and smartly track the user’s grocery basket for informing them about -for example- the CO2 impact of their purchase and how aligned it is to their environmental priorities or social valuesThe solution will actively recommend alternative products of lower impact and encourage them through personalized content, gamification and community challenges to further pursue a sustainable lifestyle.We strongly believe that our daily habits can change the world. Our vision is to enable millions of consumers around the globe to learn why and how their consumption decisions impact biodiversity, climate and their own well-being. We want to accelerate the change towards sustainable production: as users consume more responsibly, they create healthy competition between companies who start to produce responsibly.We have ten years left to cut our CO2 emissions by half. From now on, every action counts. Join inoqo.
• Heizma — Heizma make climate-neutral heating possible and easy for every family. It offers complete solutions that include not only heating systems, but also photovoltaic systems, power storage, e-charging stations, and intelligent energy management systems.

Portfolio highlights

• Minimist — Minimist makes second-hand selling effortless

Portfolio highlights

• Heizma — Heizma make climate-neutral heating possible and easy for every family. It offers complete solutions that include not only heating systems, but also photovoltaic systems, power storage, e-charging stations, and intelligent energy management systems.
• Minimist — Minimist makes second-hand selling effortless
• Wictory.AI — Wictory.AI focus is on intelligent training for your best performance.

Portfolio highlights

• Glacier — Glacier expertise in providing step-by-step innovative solutions that help in carbon reduction from every company globally.

Portfolio highlights

• Paired — Paired is your guide to improve your relationship via fun daily questions, couple quizzes, couple games and relationship advice. Try the Paired couples app free now.
• Anyline — Accurate, secure & integrated mobile data capture: Enhance business processes, speed up workflows and improve efficiency with mobile scanning
• Mimo — Mimo is an app that teaches the computer science in a fun and interactive way. Mimo’s lessons are fun and interactive, fit into people’s everyday lives, and lead them to make a habit of self-improvement. Getting through to more than 1.5 million people and achieving completion numbers far above the industry average, Mimo is well on its way tobecoming the one-stop shop for education and entertainment on the go.

Portfolio highlights

• Cashbee — Cashbee is a mobile application to helps save money with budget analysis tools based on artificial intelligence. They wish to help the French to save better and more, and to provide the technological means to do this in the simplest possible way, without having to change banks. The Cashbee App allows you to put money aside with a simple swipe onyour smartphone. They alert you every time when they think you can put some more cash aside.
• Kate — Kate redefines everyday mobility by offering electric vehicles made in France.
• Kubo Labs — Kubo Labs provides a suite of products to simplify your experience with Kubernetes.

Portfolio highlights

• Inoqo — In a world of over, mis- or blurred information, inoqo wants to provide consumers with scientific-based data on the environmental, social and biodiversity impact of familiar grocery products. Our mission is to help all of us aligning our daily purchasing decisions to our key concerns so that we can actively contribute to a sustainableproduction-consumption cycle.The app uses a specific innovative technology that can passively and smartly track the user’s grocery basket for informing them about -for example- the CO2 impact of their purchase and how aligned it is to their environmental priorities or social valuesThe solution will actively recommend alternative products of lower impact and encourage them through personalized content, gamification and community challenges to further pursue a sustainable lifestyle.We strongly believe that our daily habits can change the world. Our vision is to enable millions of consumers around the globe to learn why and how their consumption decisions impact biodiversity, climate and their own well-being. We want to accelerate the change towards sustainable production: as users consume more responsibly, they create healthy competition between companies who start to produce responsibly.We have ten years left to cut our CO2 emissions by half. From now on, every action counts. Join inoqo.

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

• Repark — Repark relies on its own access module, which the firm claims can be put on the garage door in a matter of hours. Following installation, residents and Repark users can use a smartphone app to open the garage.
• Necture — NECTURE empowers businesses to unlock the full potential of fleets, seamlessly bridging the gap between mobility and energy. Combining human-driven information with data-driven intelligence, we provide tailored solutions that optimize operations, reduce costs, and achieve sustainability goals. Our AI-driven technology platform offers advanced dataanalytics, automation, and user experience for efficient fleet management. Going beyond mere intelligence, we translate data into real-world actions, minimizing environmental impact and driving a cleaner, greener future. NECTURE is building a world where electric fleets are not only possible, but thrive.
• Wowflow — Wowflow is a mobile-first collaboration and workflow for facility maintenance teams.

Portfolio highlights

• Minimist — Minimist makes second-hand selling effortless

Portfolio highlights

• Gropyus — Creating sustainable living for everone.
• Reface — Reface offers state-of-the-art technology for high-quality face-swapping. Based on GAN (generative adversarial networks) methodology, it works fast and you need only one photo to make a high-quality face-swap.Reface strives to build the first social platform of dynamically personalized media content empowered with machine learning technology.Launched in January 2020, it was ranked as a number one in the US AppStore. The app was downloaded over 70 million times in seven months after it launched. Reface was founded by Roman Mogylnyi, Oles Petriv, Yaroslav Boyko, Denys Dmytrenko, Kyrylo Syhyda, Dima Shvets and Ivan Altsybeiev.Data protection is a social responsibility for Reface. We do not use data for any other purposes except for face-swapping.Work with the B2B segment includes ready-to-use technology and tools for businesses.Reface provides tools for creators to produce great content while keeping the costs down. It’s aimed at advertising and marketing, media, streaming, game development, video production industries, and more.
• INPUT SOFT — InputSoft Innovations in technologies and approaches to workflows and data management in the aviation industry.