Top 50 CleanTech Startup Investors in Estonia (September 2026)

Portfolio highlights

• OTee — OTee's Industrial Automation platform makes it possible to create and manage industrial-grade virtual control systems, based on open standards and architecture!
• Spiral Hydrogen — All-in-one, bubble-free centrifugal electrolyzer with an embedded axial flux generator that sets a new standard in efficiency and simplicity.
• Nanordica Medical — Nanordica Medical develops novel nanoparticle-based antibacterial wound care products.

Portfolio highlights

• BrachyDOSE — BrachyDOSE - is a med-tech startup dedicated to solve radiation injuries that occur during the brachytherapy procedure. Our team consists of engineers and physicists experience in scientific research.
• Nanordica Medical — Nanordica Medical develops novel nanoparticle-based antibacterial wound care products.
• Granarium Technologies — Granarium - The worlds first 100% renewable power storage for grid stabilization

Portfolio highlights

• Inion software — EMS, Power Plant Control and Cybersecurity solutions for solar, wind and battery storage projects.Discover our performance-boosting monitoring systems. It
• Decade Energy — Decade Energy is the energy infrastructure and optimization partner for transport operators and depot managers who want to electrify their fleets.
• Delfos Energy — Why did it Fail? Avoid unexpected failures across your assetsReduce the risk of unexpected failuresmoreOptimize Maintenance Windowsmoreretain and scale up operational knowledgemoreplatform real time monitoring, analysis and predictions for renewable energy and oil&gas assetsVIEW OUR APPLICATIONS customer and partnerssee what our customers say about our solutions TestimonialsYour failure prediction alarm, helped us avoid an

Portfolio highlights

• Coursy.io — Make employee development more effective with LMS powered by Learning Design
• Waybiller — Bulk TMS solution for end-to-end management: Waybiller transforms your logistics operations, allowing you to handle bulk shipments with precision and speed. The Best E-waybill Software & Bulk TMS Solution
• Bilance — Bilance connects to 2,300+ European banks, syncs your transactions automatically and sorts them into budgets. On iOS and Android.

Portfolio highlights

• Vegvisir — Revolutionising battlefield capabilities with XR technologies. Situational awareness & enchanced decision making for manned vehicles, remote platforms and command stations.
• UFORCE — UFORCE is a defence technology business that specialises on combat-proven unmanned systems for air, ground, and marine operations.
• PDKinematics — PDKINEMATICS builds precision guidance systems for the UAV era.

Portfolio highlights

• PARTORY — PARTORY offers complete manufacturing solutions in engineering. PARTORY utilising AI and machine learning to streamline the procurement process for low-cost metal parts
• CYCLE — KOITOTO hadir sebagai situs slot gacor online dengan link Slot777 resmi hari ini serta pilihan provider Slot88 terbaru yang menyediakan beragam game menarik dengan fitur dan tema berbeda.
• Okazjum.pl — Okazjum.pl is a leading Polish site for local search and local promotion search. The company enables users to look for the best local sales online, search brochures of local retailers and find stores near them.

Portfolio highlights

• Askly — Add multilingual chat to any site in 2 minutes. Providing multilingual customer support is easy and affordable. Start a 30-day free trial today.
• Snabb — Snabb delights vehicle owners by enabling services such as parking, washing, charging, and fuelling from one user-friendly and convenient interface- the Snabb App. Browse, book, navigate, start, pay, review and manage your vehicle services from one easy-to-use App.Founded in 2015, we've grown from a Tallinn-based private parking App to aninternational platform that serves over 50,000 users in 10 markets on a monthly basis.We are constantly working towards connecting all vehicle service providers to our platform and thus enabling the ultimate convenience and simplicity to vehicle owners. Browse, book, navigate, start, pay, review and manage your vehicle services from one easy-to-use App.
• Promoty — Influencer marketing platform that helps you to find creators, manage influencer relationships, and save time on influencer marketing. Get started here!

Portfolio highlights

• Flirtu — Flirtu is an app for dating on Telegram that helps users find their perfect match.
• FIS.solutions — Loan Management System | Loan Servicing Software | Lending Software. Instalment loans, mortgages, car leasing & rentals, credit line, business loans, factoring
• Willow Wealth — Willow Wealth is an alternative investment platform focused on generating income streams for investors. Get exclusive access to private market investments.

Portfolio highlights

• Themo — Themo's innovation is an algorithm that optimizes the price of exchange electricity and the consumption of electricity. Themo offers an easy and environmentally friendly way to save on electricity consumed by heating.
• Vok Bikes — We build heavy-duty cargo bikes and rent them out to on-demand delivery companies and their couriers — no surprises, no extra fees. Currently active in Tallinn and Vilnius and expanding to London and Berlin Q4 2021.
• UP Catalyst — UP Catalyst produces sustainable carbon nanomaterials and graphite for the green energy storage industry.

Portfolio highlights

• Ringy — Ringy is a marketplace for refurbished electronics.
• Aampere — Aampere is a marketplace for the purchase and sale of used powered mobility. Their services include personal contact, wide delivery, condition checking upon collection, and washing and cleaning before delivery. They are neutral intermediaries between buyer and seller.
• Bahn Express — Bahn Express is a global car transportation company that supports independent contractors while offering quick and easy auto shipping throughout Europe.

Portfolio highlights

• Hepta Insights — Hepta provides automated power grid management and analysis using autonomous drones and powerful analytics software. Visit our website to find out more!

Portfolio highlights

• KWOTA — Verified carbon emission credits from increased material recovery
• Spacedrip — Spacedrip develops automated water treatment and reuse systems that recycle wastewater back to pure usable water with minimal maintenance. Our systems provide off-grid water without the need for centralized sewage/water solutions.
• RAIKU — RAIKU is a cleantech startup that produces 100% natural packaging material that has also great looks and shock absorption - most importantly, it gives 15-20 times more volume to its raw material making it one of the most resource efficient material uses in the world with high margins. Both the production is and products are clean making no harm tonature. RAIKU has raised over 1.2mln€ in the pre-seed stage, built a team of over 10 people, its own IP and clients are already using its packaging material. This material will up-end the 1 trillion € packaging sector.

Portfolio highlights

• Tapaya — A modern, fast payment app that runs on any device you already own: phone, tablet or kiosk. Accept contactless payments in store with Tap to Pay, with nothing to buy and nothing to install on a counter.
• ForActive — ForActive The Best App to Buy & Sell Memberships
• Spotwise.ai — Spotwise hears every ad on TV, radio and podcasts, then puts AI agents on that data to do market research, reports, ad strategy and find new advertisers.

Portfolio highlights

• Earthbound — MIRET sustainable, natural sneakers - made from 7 amazing plant materials and eco-certified New Zealand wool. Crafted for all the reasons.
• Snabb — Snabb delights vehicle owners by enabling services such as parking, washing, charging, and fuelling from one user-friendly and convenient interface- the Snabb App. Browse, book, navigate, start, pay, review and manage your vehicle services from one easy-to-use App.Founded in 2015, we've grown from a Tallinn-based private parking App to aninternational platform that serves over 50,000 users in 10 markets on a monthly basis.We are constantly working towards connecting all vehicle service providers to our platform and thus enabling the ultimate convenience and simplicity to vehicle owners. Browse, book, navigate, start, pay, review and manage your vehicle services from one easy-to-use App.
• Botsync — Botsync builds autonomous mobile robots to automate and digitize movement of goods from point to point for the logistics and manufacturing industry. Our robots can carry payloads from 500 kg to 1 tonne and are designed to operate in dynamic environments. Botsync's AMRs can be implemented at new facilities in minimal time with very minimalchanges to the existing infrastructure. With our technology, we hope to pioneer and push for larger scale adoptions of robotic automation in Asia's logistics and manufacturing industry.

Portfolio highlights

• Copla — Simplify cybersecurity compliance with automated workflows, audits, and risk management. Our expert CISO team tailors solutions to your organization's needs.
• CyberUpgrade — Simplify cybersecurity compliance with automated workflows, audits, and risk management. Our expert CISO team tailors solutions to your organization's needs.
• Nanordica Medical — Nanordica Medical develops novel nanoparticle-based antibacterial wound care products.

Portfolio highlights

• Bikeep — Smart bike and e-scooter stations with app access, fire-safe e-charging, and real-time monitoring from anywhere. 10,000+ devices across 30+ countries.
• Promoty — Influencer marketing platform that helps you to find creators, manage influencer relationships, and save time on influencer marketing. Get started here!
• FleetFox — Full-stack fleet care service. Hands-on fleet services powered by technology for car-sharing and business fleets across Europe.

Portfolio highlights

• Uniify — Uniify is a no-code customer onboarding software that makes it fast, easy and secure for financial companies to onboard their customers. Save your business time and money, and build onboarding flows for your customers in minutes instead of months.
• Crisp — Crisp connects data between retailers, distributors, and brands to power real-time insights across the supply chain.
• Salesforge — Salesforge is an all-in-one sales execution super app that gives every sales team the highest probability to hit their target by tackling email deliverability and the need to personalize cold email outreach at scale.We do that by enabling real-time AI & machine learning to decision critical sales activities, enhance messaging and eliminatethe need for various sales point solutions, therefore driving superior conversion rates.

Portfolio highlights

• BirdyChat — A modern work chat app for professionals. Start conversations with anyone using their work email. Collaborate and grow your network.
• Giraffe360 — Giraffe360 is game-changing subscription product for real estate companies to streamline professional quality photography and high accuracy floor plan creation.
• Saltz — Premium ingredients for your menu with no hidden delivery fees or markups.

Portfolio highlights

• swotzy. — Swotzy offers a shipping platform to assist e-commerce retailers in streamlining their last-mile operations and reducing operating expenses by always using the best-suited carrier.
• Sauna by Wordware — A collaborative prompt engineering IDE
• Certifier — Certifier is the leading software to create, issue, and verify certificates in bulk. An AI-powered platform for managing digital certificates, credentials, and badges.

Portfolio highlights

• Avrio — Capture and share data analysis, user research, and learnings directly in context, with your team.
• SegmentStream — At SegmentStream we partner with growth leaders to drive more revenue from paid media through full-funnel attribution, incrementality measurement and automated cross-channel budget allocation powered by predictive AI.
• Jälle Technologies — Jälle Technologies create advanced recycling technologies that transform battery waste into high-value resources.

Portfolio highlights

• RAIKU — RAIKU is a cleantech startup that produces 100% natural packaging material that has also great looks and shock absorption - most importantly, it gives 15-20 times more volume to its raw material making it one of the most resource efficient material uses in the world with high margins. Both the production is and products are clean making no harm tonature. RAIKU has raised over 1.2mln€ in the pre-seed stage, built a team of over 10 people, its own IP and clients are already using its packaging material. This material will up-end the 1 trillion € packaging sector.

Portfolio highlights

• Meld — Access stablecoins and digital assets anywhere
• Pave Bank — The world's first multi-asset and programmable bank
• Bitblox Games — Offer innovative and engaging blockchain-based games on your platform and attract a new wave of players with Bitblox.

Portfolio highlights

• RAIKU — RAIKU is a cleantech startup that produces 100% natural packaging material that has also great looks and shock absorption - most importantly, it gives 15-20 times more volume to its raw material making it one of the most resource efficient material uses in the world with high margins. Both the production is and products are clean making no harm tonature. RAIKU has raised over 1.2mln€ in the pre-seed stage, built a team of over 10 people, its own IP and clients are already using its packaging material. This material will up-end the 1 trillion € packaging sector.

Portfolio highlights

• VOOL — VOOL is a one-stop shop for EV Charging. Experience chargers that are reliable, save money, and look damn good. Made in Estonia.
• RAIKU — RAIKU is a cleantech startup that produces 100% natural packaging material that has also great looks and shock absorption - most importantly, it gives 15-20 times more volume to its raw material making it one of the most resource efficient material uses in the world with high margins. Both the production is and products are clean making no harm tonature. RAIKU has raised over 1.2mln€ in the pre-seed stage, built a team of over 10 people, its own IP and clients are already using its packaging material. This material will up-end the 1 trillion € packaging sector.
• EyeVi Technologies — EyeVi is a provider of road network intelligence with AI-powered on-demand mapping technologies.

Portfolio highlights

• LynxPower — Cleantech platform offering wireless metering and AI-driven energy management to track, analyze, and optimize energy use in real time.
• MarkeDroid — Turn sites into intelligent power plants The world's most adaptable AI-powered Energy Orchestration Platform. Google Play App Store Our customers participate
• DriveX Technologies — Decrease your average claim size with AI vehicle inspection tool for CASCO pre-checks and windshield claims.

Portfolio highlights

• RAIKU — RAIKU is a cleantech startup that produces 100% natural packaging material that has also great looks and shock absorption - most importantly, it gives 15-20 times more volume to its raw material making it one of the most resource efficient material uses in the world with high margins. Both the production is and products are clean making no harm tonature. RAIKU has raised over 1.2mln€ in the pre-seed stage, built a team of over 10 people, its own IP and clients are already using its packaging material. This material will up-end the 1 trillion € packaging sector.

Portfolio highlights

• RAIKU — RAIKU is a cleantech startup that produces 100% natural packaging material that has also great looks and shock absorption - most importantly, it gives 15-20 times more volume to its raw material making it one of the most resource efficient material uses in the world with high margins. Both the production is and products are clean making no harm tonature. RAIKU has raised over 1.2mln€ in the pre-seed stage, built a team of over 10 people, its own IP and clients are already using its packaging material. This material will up-end the 1 trillion € packaging sector.

Portfolio highlights

• Hintsa — Discover a better you, with methods proven in Formula 1 and Fortune 500.
• R8tech — R8 Jenny is AI HVAC technology for commercial real estate. It helps you achieve ESG goals while saving up to 30% in energy costs!
• Blueprint Genetics — We offer complete genetic testing and genetic diagnostics to medical professionals worldwide. Learn more about our winning clinical-grade NGS offering!

Portfolio highlights

• Groveneer — Groveneer is a manufacturer of adhesive wood panels.
• Callmidwife.com — Callmidwife.com is a healthcare that provides online tools to connect the patients with midwives regarding pregnancy or baby's health.
• RAIKU — RAIKU is a cleantech startup that produces 100% natural packaging material that has also great looks and shock absorption - most importantly, it gives 15-20 times more volume to its raw material making it one of the most resource efficient material uses in the world with high margins. Both the production is and products are clean making no harm tonature. RAIKU has raised over 1.2mln€ in the pre-seed stage, built a team of over 10 people, its own IP and clients are already using its packaging material. This material will up-end the 1 trillion € packaging sector.

Portfolio highlights

• GIG-A — Open a bank account in Japan from your mobile with GIG-A. Receive salary, manage everyday spending, or transfer money with ease.
• Introwise — Introwise makes it easy for everyday experts to offer coaching and advice online.
• Lightyear — Lightyear is a simple and approachable way to invest your money globally without unnecessary barriers and fees.

Portfolio highlights

• Einsted — Einsted is an biotechnology company based in Argentina, developing a BioElectroProcessor for bioindustrial processes optimization. Our goal is to generate NanoPulsed Reactions (NPR) for the Food, Pharma and Cosmetic industries.
• RedoxNRG — RedoxNRG develops advanced carbon capture and conversion technology to transform CO₂ into green fuel using renewable energy.
• RAIKU — RAIKU is a cleantech startup that produces 100% natural packaging material that has also great looks and shock absorption - most importantly, it gives 15-20 times more volume to its raw material making it one of the most resource efficient material uses in the world with high margins. Both the production is and products are clean making no harm tonature. RAIKU has raised over 1.2mln€ in the pre-seed stage, built a team of over 10 people, its own IP and clients are already using its packaging material. This material will up-end the 1 trillion € packaging sector.

Portfolio highlights

• ÄIO — Innovative food technologies to replace palm oil, coconut oil and animal fats with sustainable and healthier alternatives.
• Lifeyear — Digital-first heart care. At scale.
• Rollo Robotics — 1ROLLO is the world's first commercial autonomous one-wheeled security robot. Making security services 10x cheaper, smarter, and more energy-efficient.

Portfolio highlights

• LynxPower — Cleantech platform offering wireless metering and AI-driven energy management to track, analyze, and optimize energy use in real time.
• MarkeDroid — Turn sites into intelligent power plants The world's most adaptable AI-powered Energy Orchestration Platform. Google Play App Store Our customers participate
• DriveX Technologies — Decrease your average claim size with AI vehicle inspection tool for CASCO pre-checks and windshield claims.

Portfolio highlights

• Bioreactor — Bioreactor is a revolutionary technology that converts bio waste into clean energy through biomass gasification. It's a sustainable, efficient and cost-effective solution that addresses energy poverty, energy security and climate change. With the use of the latest technology in computational fluid dynamics, cloud-optimized digital twin anddeep learning algorithms, the Bioreactor can optimize its performance in real-time over a wide range of fuels and operating conditions. The Bioreactor is a game changer in the energy industry, it can reduce greenhouse gas emissions, drastically lower energy costs, and help to alleviate energy poverty on a national scale.
• Safegrid — Smarter sensors for a smarter grid
• Vensum Power — Revolutionizing power conversion. More power in same package, less energy waste and low maintenance.

Portfolio highlights

• Paul-Tech — Soil, weather and satellite data translated into actionable insights. Know precisely when to sow, water or spray with Paul-Tech's soil stations.

Portfolio highlights

• Esgrid — Esgrid provides value-chain sustainability management solutions to medium-sized businesses and financial institutions.
• UP Catalyst — UP Catalyst produces sustainable carbon nanomaterials and graphite for the green energy storage industry.
• RAIKU — RAIKU is a cleantech startup that produces 100% natural packaging material that has also great looks and shock absorption - most importantly, it gives 15-20 times more volume to its raw material making it one of the most resource efficient material uses in the world with high margins. Both the production is and products are clean making no harm tonature. RAIKU has raised over 1.2mln€ in the pre-seed stage, built a team of over 10 people, its own IP and clients are already using its packaging material. This material will up-end the 1 trillion € packaging sector.

Portfolio highlights

• Paul-Tech — Soil, weather and satellite data translated into actionable insights. Know precisely when to sow, water or spray with Paul-Tech's soil stations.

Portfolio highlights

• Skeleton Technologies — Skeleton Technologies is the global leader in ultracapacitor & supercapacitor energy storage and helps companies in automotive, transportation, grid, and industry to save energy.

Portfolio highlights

• Esgrid — Esgrid provides value-chain sustainability management solutions to medium-sized businesses and financial institutions.
• Skeleton Technologies — Skeleton Technologies is the global leader in ultracapacitor & supercapacitor energy storage and helps companies in automotive, transportation, grid, and industry to save energy.

Portfolio highlights

• LynxPower — Cleantech platform offering wireless metering and AI-driven energy management to track, analyze, and optimize energy use in real time.
• MarkeDroid — Turn sites into intelligent power plants The world's most adaptable AI-powered Energy Orchestration Platform. Google Play App Store Our customers participate

Portfolio highlights

• Esgrid — Esgrid provides value-chain sustainability management solutions to medium-sized businesses and financial institutions.
• Ligence — AI Automated Echocardiography - Artificial intelligence-powered automated heart ultrasound echo lab system.
• Soldera — Soldera is unifying energy certificate registries. We give corporate energy buyers, sustainability teams, procurement teams, utilities, and traders one infrastructure layer across fragmented registries so they can procure, manage, and cancel renewable energy certificates with far less manual work.The platform combines aggregated procurement fromthousands of utilities with cleaner registry execution and audit-ready, government-backed cancellation statements traceable to the generating machine. That makes renewable energy certificate management easier to run, easier to evidence, and easier to scale across markets.

Portfolio highlights

• RAIKU — RAIKU is a cleantech startup that produces 100% natural packaging material that has also great looks and shock absorption - most importantly, it gives 15-20 times more volume to its raw material making it one of the most resource efficient material uses in the world with high margins. Both the production is and products are clean making no harm tonature. RAIKU has raised over 1.2mln€ in the pre-seed stage, built a team of over 10 people, its own IP and clients are already using its packaging material. This material will up-end the 1 trillion € packaging sector.

Portfolio highlights

• Echoo Group — Echoo Group provides Smart Home, Building automation system (BMS), Engineering network solutions from design to solution.
• RoyaltyRange — RoyaltyRange is a data provider with 4 professional databases covering Royalty rates, Service fees, Loan rates, Companies' financials.
• Electrify — Electrify manufactures electric buses and minibusses offers charging solutions, and bus infrastructure maintenance.

Portfolio highlights

• Backblaze — Backblaze is a pioneer in robust, scalable low cost cloud backup and storage services. Personal online backup to enterprise scale data storage solutions.
• Rhino — First-class armored rides
• Global Work — Explore 500k+ verified remote, hybrid, and local jobs worldwide. Find your ideal role, compare opportunities, and apply on globalwork.ai!

Portfolio highlights

• Modash.io — High performing marketing teams use Modash to find, analyze and monitor influencers at scale all over the world. Join them today.
• AXDRAFT — Automate contracts with AXDRAFT.
• Legal Nodes — Offload your legal tasks to a virtual legal department and get on with running your business. Get started with the Legal Nodes platform for free.

Portfolio highlights

• Planet42 — Having your own car has never been easier. Planet42 is a vehicle rental company offering rent-to-buy car service for private clients.
• Mentornaut — Mentornaut is a new online tutoring platform is aiming to increase inclusion in personalized education and counts Super angel, United Angels VC, and a list of EdTech advocates like Bolt co-founder Martin Villig, and Clanbeat co-founder Kadri Tuisk among its investors.
• StudentFinance — Catapult your career with leading re-skilling and up-skilling bootcamps. Study now and pay us back once you land a job & start earning!

Portfolio highlights

• Ziro — Embedded financial services for MSMEs | B2B Buy Now, Pay Later
• Athian — Funding livestock sustainability via a connected carbon marketplace.
• Pack2Earth — Pack2Earth, S.L. is a company that specializes in developing new, sustainable materials for the food sector and other industries.

Portfolio highlights

• KWOTA — Verified carbon emission credits from increased material recovery
• PayQin — Vous allez aimer payer en ligne
• Detail — Record and edit videos with Detail for iOS and macOS. Everything you need to create videos and podcasts, fast. Download for free on the App Store.

Portfolio highlights

• KWOTA — Verified carbon emission credits from increased material recovery
• Esgrid — Esgrid provides value-chain sustainability management solutions to medium-sized businesses and financial institutions.
• Nature Preserve — Nature Preserve offers a subscription-based Life Cycle Assessment (LCA) platform tailored for food distributors and processors to track and minimize the emissions of food products.

Portfolio highlights

• Bonava — Bonava is a real estate company. They offer apartments and single-family housing to consumers and rental apartments to investors. It constructs several types of homes, such as multi-family housing, single-family homes, and semi-detached houses with various types of tenure.
• UAB Rudina — Company details, contacts and financial data
• Utilitas — Utilitas is an energy group that specializes in heat and electricity production and the provision of district heating services.