10 innovative startups contributing to a net-zero carbon economy aka ClimAccelerator starts!

September 30, 2021

We are happy to announce that the selection of startups for the ClimAccelerator program is finished and the program has started!

ClimAccelerator is for climate-positive startups from Baltic States and from Slovakia. The program is delivered by cleantech experts and tailored to support startups in the regions mentioned before. The accelerator helps to scale solutions and take the startups venture globally, attracting potential investors and vastly expanding the reach of the ideas.

Teams that got in to the program are motivated and passionate about fighting with the climate change. We found 37 ambitious startups from 4 countries: Estonia, Latvia, Lithuania and Slovakia and we are more than thrilled to help them to grow their ideas and support in any way we can”, says the Estonian program lead Karl-Joosep Pärtel from Cleantech Estonia.

The program started in September 2021 and it’s a 3-stage business accelerator with up to 10 000 euros non-equity cash, workshops, network, and business support to helps to get startups to a new level. 5 startups will join Stage 1 and 3 startups - stage 2 and 3. Want to read about the awesome ideas who joined from Estonia? Continue to read below.

KRATTWORKS has designed a system that provides fast situational awareness for fire fighters, security companies, search&rescue teams and police. They help first responders to detect objects of interest automatically by using machine vision on board of the drones and to share this information instantly across all platforms using mobile networks.

KrattWorks drones can detect humans, cars, location of the fire, flooded areas etc and if mobile networks are available this data is transmitted to the server and central control room while the drone is still in flight.

KrattWorks can also combine the drone aerial data with other information: like landscape elevation module, wind speed and direction, vegetation type and humidity and use AI to predict where the fire will spread. Their drones can do precision landing into a drone nest or onto the roof of a fire truck, the drones have obstacle avoidance and machine learning capability and they can fly without range limit in mobile networks.

System of KrattWorks

VAAL AIRSHIPS OÜ is a deep-tech startup, working on creating a physical High Altitude Pseudo Satellite platform in order to offer radically improved Earth observability and niche connectivity services instead of satellites – Enabling many climate scenarios with observability and connectivity while significantly reducing ecological footprint to do so. Digital twin of earth can be built based on our data, with much better pixel rate, refresh rate and a smaller footprint.

VAAL has an energetic hands-on team with good technical competence and strong leadership. The team has flown several probes into the stratosphere, taking measurements and learning about flight dynamics. The team have experience with space technologies, materials and systems required and the environmental conditions.

The team behind VAAL Airships

ENDANGERED WILDLIFE OÜ is a tech for good fintech that values biodiversity. The company has developed a sophisticated Biodiversity Valuator which is a first of its kind, and uses machine learning and environmental statistics, environmental economics, pure finance and pure statistics. The Biodiversity Valuator SaaS solution, which is currently under development, calculates the financial value of individual species of biodiversity in specific locations.

The world is a monetary economy and it is believed that, until people can understand and relate to the value of biodiversity, they will not understand their responsibility to conserving and not over utilising it. The Biodiversity Valuator financially quantifies the benefit of biodiversity and thereby adds value to sustainability reporting and decision making by allowing corporates and investors to integrate biodiversity into the decision-making process; to financially measure and disclose their environmental impact; and to calculate an impact return on investment.

EESTI METSAMEISTER OÜ Globally, we have reached a world where sustainability has become a key factor and neutralizing the carbon footprint is the responsibility of every country, every company and individual person. For more than a year, Eesti Metsameister have been working on an innovative Co2 calculator that, in addition to measuring, also calculates real-life practical solutions for offsetting your footprint. The growing market requires regulated action to avoid misleading greenwashing, which is why Metsameister developes a product in collaboration with known scientists and internationally certified methodologies!

Team of Metsameister is characterised by the implementation of a bold idea, accompanied by rational, well-thought-out activities. They are known to follow the known proverb - measure Twice, cut Once!

At REXPLORER, our mission is to improve customer experience in renewables and help more people join the community energy revolution.

Rexplorer built a platform for solar and wind projects of every size and stage. They have public and private data sources, sensors, satellites, and our own modelling algorithms under the hood to help you make decisions with a click of a button.

Rexplorer was established in 2020 as a spin-off from Sunly, an Estonian renewable developer, with the idea to help other companies reduce costs of the early stages of large-scale development projects by 10–20x using our land plot search and analysis software. Since then, they have analysed more than 500 land plots and rooftops. Today Rexplorer monitors over 30 solar parks across the Baltics and Poland.

They are a team of 5 people: electrical engineer Taavi, product designer Emilia, environmental engineer Mairika, geospatial engineer Natasha, and CEO Ilya.

BRINGPACK’s mission is to make single-use take-away food packages a history! While there have been  a number of attempts to introduce loop systems for food containers and cups in various markets they have remained rather local and community based with difficulties to scale. Bringpack is aiming to solve the scalability issue by focusing on building technology enabled (automated RFID-tag based collection machines), easy to access (broad network of collection machines), city level (i.e. large scale), centrally managed (washing, logistics) and consumer focused (service design, marketing communications) loop systems – a strategic choice based on the assumptions that there are clear network effects and scale economies which favour large scale “smart city infrastructure” business model. While the initial focus is on take-away food containers the solution will be extended to other packaging types, e.g., e-commerce and fast-moving consumer goods packages (incl. food, cosmetics, household products). There are several pilot locations in operation with more than 50,000 container loops conducted so far and the company plans to build the global firs city level loop system for take-away food packages in Tallinn and Tartu in 2022.

Bringpack (photo by Andres Raudjalg)

DECOMER TECHNOLOGY is developing novel water-soluble and edible packaging materials. Their biopolymer film materials are plant-based, water-soluble, edible and eco-friendly. Such materials can be used for a wide range of applications from food and pharmaceuticals to home and personal care. The team combines convenience and sustainability.

ÖKOMAJA develops and constructs houses that would be fit for passive house standard with engineers that have engineered multiple projects in Europe. The panels produced by Ökomaja are manufactured from agricultural by-product straw, clay and wood. The team has vast experience in project leading and construction.


SONNEFY mission is to reduce costs, increase efficiency and grow profits for solar plants.

Solar power plants suffer due to lost energy production resulting in lower profits and investment returns. Our goal is to improve the efficiency by utilising drone infrared inspections, data-driven decision making and predictive maintenance strategies.

Sonnefy uniquely combines digital models, drone aerial imagery, machine learning and the best user experience in assessing the efficiency of solar power plants. As a result, they provide detailed downtime reporting and an interactive job list that delivers real savings to customers, resulting in lower maintenance costs and higher productivity.


FUDLER is a platform, where restaurants can find buyers for surplus food at a cheaper price.

Bunch of active young students decided to find the right solution to the problem of food waste and implement it independently. Fudler's idea started in February, when the team contacted several food companies to form an idea. The first challenge was the Student Startup Camp, where they received a lot of good feedback, set up the current team and started developing the platform. The launch of the initial platform happened for the first time at the end of August 2021 in Tartu.

From Fudler you can buy restaurants' unsold yet fresh food, that hasn't even gotten on a plate. The offered food is atleast -30% to -70% from full price. With every bought meal you help reduce food waste! Photo: Fudler.


If you have questions about the startups or ClimAccelerator, contact the program lead of Estonia Karl-Joosep Pärtel at karl@cleantechestonia.ee.

ClimAccelerator program is supported by EIT Climate-KIC, the biggest network of cleantech and sustainability companies and institutions inside the EU, funded by EIT and Horizon Europe. It will be locally implemented by Cleantech Estonia in Estonia, Riga Technical University in Latvia, Sunrise Valley Science and Technology Park in Lithuania, and Civitta in Slovakia to empower innovative startups and facilitate the adoption of circular economies and green technologies to tackle climate change.

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