Top 20 Clean Energy Startup Investors in Finland (September 2026)

Portfolio highlights

• GaltTec — GaltTec focuses on developing and marketing microtubular solid oxide fuel cells. GaltTec specializes in drones, off-grid equipment, IoT, portable devices, and space equipment. GaltTec was founded in 2022 and was headquartered in Tartu, Estonia.
• Bisly — Bisly is an Estonian startup developing intelligent building solutions.
• Nanordica Medical — Nanordica Medical develops novel nanoparticle-based antibacterial wound care products.

Portfolio highlights

• STRGY AI — The strategy was never the problem. The evidence was correct, sitting in someone's hands, and it died anyway because nothing in the organization was built to carry that evidence from where it was seen to where it could be acted on, and keep it alive long enough to matter. Not a bad plan. Not bad people. A structural gap between signal andauthority that every existing tool — decks, dashboards, status meetings — is too static and too easy to ignore to actually close.STRGY exists because that gap is the default state of every organization above a certain size, and closing it has always required either a heroic individual repeating themselves for years or luck (the corporate pilot needed one person to remember "do not drop this" at the right moment, and no one did). That's not a strategy problem to solve with a better framework — it's an infrastructure problem. You need something that holds the signal, doesn't forget it, doesn't get bored repeating it, and resurfaces it automatically the moment the gap between evidence and action starts to widen. That's what a human can't do reliably at scale, and what software with real memory can.
• Coolbrook — Our RotoDynamic electric technology can cut 30% of industrial emissions annually, delivering hope at industrial scale.
• Solar Foods — Solar Foods is a food-tech startup that specializes in testing a technology that uses electricity to produce hydrogen which is combined with carbon dioxide, water, vitamins, and minerals to feed and grow microbial biomass that can be used as edible protein. The industrial biotech startup develops a protein called Solein, a nutritious, sustainablesubstitute for animal-derived proteins. Solein is created using elements from the air—CO2, water, nitrogen—and electricity. This single-cell protein is cultivated through gas fermentation, essentially deriving edible calories from hydrogen-oxidizing microbes.

Portfolio highlights

• Sigvi — Sigvi is a managed car rental marketplace that turns thousands of fragmented small fleet operators into one AI managed rental network. The platform aggregates vehicle supply from independent rental companies and private owners, handles all operations — from booking and keyless pickup to maintenance, insurance, and fines — and delivers a fullydigital rental experience to travellers and businesses across Europe.Based in Vilnius, Lithuania, Sigvi operates an asset-light model where car owners list vehicles for a minimum of one year while Sigvi manages the entire customer lifecycle. Guests book through the platform and access cars 24/7 via keyless phone unlock at Sigvi-managed parking lots, eliminating the counter queues and trust issues that plague traditional rental.The company serves both B2C travellers (tourists, long-term renters, car replacement) and B2B clients (corporate fleets, insurance replacement vehicles, OTA partners). Sigvi is live in Lithuania and Poland, targeting the ~35% of the €72B European car rental market still served by independent operators with no technology infrastructure.
• Guideless — Guideless turns any browser workflow into a polished, AI-narrated video guide in minutes. No screen recording, no tedious editing. Just turn on our Chrome extension, click through your process as you normally would, and instantly get a share-ready guide.Use cases: Product walkthroughs, customer onboarding, employee training, and supportdocumentation.Key features: - AI-written narration and natural voiceover. - Smart zooms and highlights for clarity. - Built-in captions for accessibility. - Always consistent and on-brand. - Shareable URLs, embed codes, and export to MP4How it works: - Add the Chrome extension. - Capture your workflow. - Share your guide.Privacy built-in: Your guides and data are never used to train AI models and are securely encrypted.Check https://guideless.ai/gallery and get inspired with curated guides showcasing workflows, product demos, and tutorials across every use case.
• SeeTrue Technologies — Ultra-low-power eye tracking from SeeTrue delivers accurate gaze data for AR/VR, microscope & camera eyepieces and wearables, powered by custom sensors.

Portfolio highlights

• AISTI — AISTI develops wood fiber-based acoustic tiles that are carbon negative, easy to recycle and plastic-free – bringing sustainability to construction tile by tile.
• QHeat — QHeat offers Clean geothermal energy solutions for sustainable built environments
• Betolar — Betolar is a materials technology company that develops circular economy solutions for the mining, metals, and construction sectors by transforming industrial sidestreams and waste materials into valuable products. Its technologies support the production of low-carbon, cement-free construction materials and enable the recovery of critical andstrategic metals from industrial waste streams. The company provides material analysis, consulting, and recipe optimization services, utilizing digitalization, data platforms, and artificial intelligence to support research, development, and industrial applications. Betolar's solutions are designed to help reduce carbon emissions, decrease reliance on virgin raw materials, and improve the utilization of industrial byproducts. Its activities span construction materials, metal extraction technologies, and circular material solutions that support more resource-efficient industrial processes.

Portfolio highlights

• Oceanloop — Oceanloop uses cutting-edge aquaculture technologies to transform the worldwide shrimp industry. Land-based Oceanloop shrimp farms provide high-quality, antibiotic-free, and sustainable saltwater shrimp production where consumption occurs. When compared to conventional farms, Oceanloop considerably reduces its resource utilization and environmentalfootprint.
• Wandercraft — Self- balancing and hands free movement with the innovative self-balancing feature, Atalante allows for multi-tasking and cognitive involvement as part of treatments.
• Santander Brasil — Banco Santander in Brazil, its largest division in Latin America and one of the world's most important, accounting for 50%.

Portfolio highlights

• ANYbotics — ANYbotics provides autonomous legged robots for industrial applications to provide high availability and reliability in automated routine inspections.
• Insight M — Insight M develops aerial monitoring technology for methane detection for the energy industry. It supports physical science expertise with data analytics to survey large areas, create digital maps in optical and infrared wavelengths, and scan various pipelines and acres of territory to identify major sources of gas loss.The company completed thefirst-ever basin-wide aerial survey for methane detection in its 2019 survey of the Permian Basin. Kairos Aerospace’s mission is to improve operational excellence for the oil and gas industry with cost-effective, efficient methane reductions at scale.
• Trace Carbon Solutions — Trace Carbon Solutions is focused on developing Carbon Capture and Sequestration (CCS) infrastructure to enable the decarbonization of an array of large-scale industrial emissions.

Portfolio highlights

• Lassie — Lassie is the first proactive and preventive pet insurance company that wants to help pet owners take better care of their pets
• UpCloud — World's fastest cloud servers with a 100% uptime SLA! Sign up for a free trial today.
• Algorithmiq — Algorithmiq utilizes its expertise in quantum information, complex systems, and computational physics to develop algorithms to develop new and effective drugs, solve problems in life sciences, and discover new materials.

Portfolio highlights

• 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.
• Aito Technologies — We are a world leader in Customer Experience Analytics for mobile operators. Aito provides better understanding and management the entire customer life cycle helping them identify key relationships and the context between business drivers, customer segments, networks, services, and devices, throughout the customer life cycle.

Portfolio highlights

• SolarLab — SolarLab designs and produces solar facades for new and existing buildings.
• Donkey Republic — Donkey Republic enables cities to create a better quality of life, getting people on two wheels. We provide a flexible, reliable and open bike sharing platform that adjusts to the needs of the city, and integrates to rest of the public transport. We provide bike- and ebike sharing service using virtual or physical docking stations, for both short-and long term rentals.
• Merus Power Dynamics — Merus Power Dynamics is a clean technology company enabling companies to save energy and increase productivity in the business operations. It offers solutions that enable companies to save energy, increase revenue, and productivity and meet regulators' grid connection criteria.To its partners Merus Power offers a unique business opportunityin the fast growing power quality market with its broad product portfolio, technology and problem solving capability unmatched by its rivals.Merus Power Dynamics Oy was founded by a team of experienced engineers in 2008. It develops a power quality product family with a focus on efficiency, reliability, and excellent dynamic performance. Merus Power also offers its customers professional system study services in order to give overall service from problem analysis to solution. Merus Power belongs to Cleantech Finland, a network of top cleantech experts.

Portfolio highlights

• Uniper — Uniper is an international energy company with about 11,000 employees. They combine a balanced portfolio of technologically advanced large-scale assets with outstanding technical and commercial expertise. Uniper is a German energy company based in Dusseldorf, North Rhine-Westphalia. It was formed by the separation of E.ON's fossil fuel assetsinto a separate company that began operating on 1 January 2016.
• Puro.earth — Puro.earth is the first B2B marketplace, standard, and registry focused solely on carbon removal. It mobilizes the world’s economy to reward carbon net-negative emissions. It does this by helping voluntary corporate buyers accelerate carbon dioxide removal at an industrial global scale. Puro.earth provides carbon removal as a service, throughidentifying suppliers, verifying their carbon removals, and issuing CO2 Removal Certificates (CORCs), an integral part of long-term procurement portfolios to fulfill net-zero pledges. Aiming at climate and economic impact, Puro.earth is driving forward a market of carbon-negative industries, enabling a new revenue stream to accelerate their growth.
• Infinited Fiber Company — Infinited Fiber Company is a Finnish biotech founded in 2016 to commercialize a breakthrough recycling technology that can turn cellulose-rich raw materials – like cotton-rich textile waste, used cardboard, or wheat or rice straw – into high-quality textile fibers with the look and feel of cotton. The patented technology has been validated byleading brands and is ready to be scaled. Infinited Fiber Company won the Europas 2020 Hottest Sustainability Tech Award, and was listed on the Global 50 to Watch by Cleantech Group in 2019. In 2016 Infinited Fiber Company was selected into WWF’s Climate Solver network. The company is headquartered in Espoo, Finland.

Portfolio highlights

• EU-CONEXUS — European University for Smart Urban Coastal Sustainability
• Leonardo — Leader in Aerospace, Defence & Security
• Egyptian Electricity Transmission Company — Egyptian Electricity Transmission Company manages, operates, and maintains high-voltage electricity grids. It acts purely as a utility infrastructure operator to transmit bulk power from power plants to regional distribution networks.

Portfolio highlights

• Betterx — Trade Securely and Trade for Good with BetterX! Join sophisticated investors in trading hundreds of assets | $BTTX Coming Soon
• Lygon — Lygon operates as a blockchain banking start-up. The Lygon platform is an industry solution that streamlines the bank guarantee process for everyone.
• Giftaway — Giftaway is an eGift platform that makes it easy for businesses to reward and incentivize stakeholders such as employees and customers.

Portfolio highlights

• Birdsview — We offer non-destructive AI-powered concrete assessment. Get precise structural insights with our 3D point cloud, optimize maintenance, and save costs.
• TheStorage — Flexible industrial heat electrification and scalable energy storage. TheStorage offers cost efficient, sustainable grid scale energy storage that can discharge heat, steam or CHP.
• RENTICY LIMITED — Renticy provides an e-commerce and point-of-sale platform that enables retailers to offer rental and try-before-you-buy options on existing stock. The company supports online and in-store channels through plugins, APIs, and QR-based tools that add rental terms, deposits, and flexible billing into existing checkout flows. Its system managesbookings, customer onboarding, identity checks, fraud screening, payments, deposits, and real-time inventory for short-term and flexible rental models. Renticy offers built-in rental protection that helps merchants handle damage, loss, and non-returns within defined coverage limits. It also supports OWNit, a try-before-you-buy flow where customers trial items before deciding to purchase. The platform is used across categories such as electronics, fashion, musical instruments, and other consumer goods.

Portfolio highlights

• Reduciner — Reduciner's vision to turn industrial CO₂ emissions from a liability into a valuable resource. Its technology converts captured carbon dioxide and biochar into valuable feedstocks such as carbon monoxide and activated carbon, enabling circular carbon use in emissions-intensive industries. Reduciner combines strong scientific expertise withindustrial applicability across sectors such as cement, steel, and chemicals. Its electricity-driven process allows industries to reduce emissions without major changes to existing infrastructure, offering a resilient and cost-competitive way to reduce carbon dependency while creating new value from CO₂ emissions.
• TheStorage — Flexible industrial heat electrification and scalable energy storage. TheStorage offers cost efficient, sustainable grid scale energy storage that can discharge heat, steam or CHP.
• Photoncycle — The year-round solar energy system for heating and electricity

Portfolio highlights

• AW-Energy — The company develops and delivers technology for converting ocean waves to electricity. AW-Energy has developed WaveRoller - a fully submerged wave energy converter which utilizes wave surge phenomenon. This commonplace effect is observed in near-shore waters where the circular motion of water particles present in open sea waves changes intoelliptical circulation due to more shallow bottom. Before the waves break, typically at the depth of 8-20 metres this elliptical motion is so flat that it is essentially a horizontal back-and-forth movement of water. WaveRoller device is a Panel anchored at its base on the sea bed. The back and forth movement of the wave surge moves the Panel, transferring the kinetic energy to piston pumps. The pumps create a great deal of pressure which is fed into a combination of hydraulic motor/generator, which in turn produces electricity. The nominal capacity of a single commercial-scale Panel ranges between 500 – 1000 kW, depending on the wave resources available on the site. WaveRoller has the ability to generate energy on a wide spectrum of wave states and is also well suited for locations where wave periods are long and the swell is strong.A series of WaveRoller devices can be combined into an array, thus resulting in a wave farm. Since the plant construction is modular with a high degree of independence between individual units, there is no natural upper limit to the number of WaveRoller units that can be used, therefore offering a high level of scalability and reliability. The electricity output from an individual Panel is connected to a hub/substation, thus making it easy to plug-in new units in separate project development stages, as the new capacity is added to the farm. Also, any potential underperformance or service & maintenance breaks of individual units have no impact on the remaining units, thus ensuring uninterrupted power output from the overall farm.The first prototypes were designed and patent applications were filed as early as in 1999, when Rauno Koivusaari, the original inventor co-operated with Fortum Research Centre during the conceptual phase. Since then the technology has evolved following numerous laboratory and wave-tank test trials and ongoing mathematical simulations. Open sea trails started in 2004 and included the Gulf of Finland, marine tests conducted in the European Marine Energy Centre (EMEC), Scotland, and an own testing site in Peniche, Portugal. The subsequent successes and encouraging test results led to continuous increase in the scale of the demonstration plant.The latest demonstration plant/farm consisting of three 100kW WaveRoller units (total nominal capacity of the farm 300kW) is to be deployed in Peniche, Portugal, during the second quarter of 2012. The final assembly is nearing completion in the first quarter of 2012 and will be awaiting suitable weather conditions for the deployment in the following months. The farm will be connected to national grid in Portugal. The company has already secured all the necessary permits and, additionally, holds a licence for 1MW grid connection.

Portfolio highlights

• Naava — Naava helps you to make safer and healthier indoor spaces - experience Naava green wall, a striking combination of nature and high-end technology.
• Headai — We help organizations succeed in a rapidly changing future by helping them find answers in large amounts of data that they can't otherwise see. Our algorithms help customers see the big picture in scattered data by revealing unknown connections and even explaining why they exist. 100% own IP, combines the strengths of Natural LanguageProcessing, self-organized learning, reinforcement learning and 20+ years experience on cognitive sciences.
• SET Ventures — SET propels founders from early growth to European scale. We invest in and grow the solutions powering the digital energy economy.

Portfolio highlights

• Elia Belgium — Elia Transmission Belgium operates the electricity transmission network in Belgium. We manage the Belgian high-voltage transmission grid (30 kV to 400 kV), which comprises over 8,903 km of overhead lines and underground cables. We preserve a service reliability level of 99.99 % and ensure that production and consumption are balanced around theclock. In so doing, we provide society with a robust power grid, which is important for socioeconomic prosperity.
• DP World Group — DP World is a world leader in end-to-end supply chain solutions. We ensure future viability of global international trade & prosperity of communities around the world
• Econergy Renewable Energy — Econergy to create, own, and manage utility-scale renewable energy projects, guided by in-depth knowledge of the industry, regulations, and technology at each crucial stage, from creation to supply

Portfolio highlights

• Nuuka — Nuuka is a building SW scaleup from Finland. Nuuka specialises in diagnosing and optimising HVAC, energy systems, and indoor climate. The SaaS is optimal for large building portfolios, of new and old public and commercial buidlings, as it can be used with any BMS and HVAC system, IAQ sensor or energy meter. Nuuka improves indoor climate, energyefficiency, reduces operational cost and improves sustainability for real estate owners, developers, retail chains and whole cities. We use SW, AI and ML to transform and industry, and save the world one building at the time.
• Eagle Filters — Eagle Filters provides air filtration and efficiency solutions for turbine energy plants, offering better protection and higher performance.
• Sofi Filtration — Innovation in Industrial Liquid Filtration

Portfolio highlights

• Norsepower Oy — Norsepower Rotor Sails | Wind Propulsion

Portfolio highlights

• DEPsys — Our advanced smart grid solutions and insights empower electricity DSOs and simplify their journeys through the energy transition.
• Visedo — Danfoss Editron specializes in hybrid and electric powertrain systems for off-highway and marine markets.
• Norsepower Oy — Norsepower Rotor Sails | Wind Propulsion