Top 50 CleanTech Startup Investors in Estonia (July 2026)

Portfolio highlights

• ROCSYS — Meet the world's first autonomous charging solution for electrical vehicles in public transportation, logistics, material handling, and passenger cars.
• Grünfin — Grünfin is a sustainable investing platform for people who care about their impact.
• 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.

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 Technologies is a Finnish deep-tech energy that creates renewable supercapacitors using only nanocellulose, biocarbon, and water, eliminating the need for mining entirely.

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 is a personal finance management app that helps you to track, analyze and plan your finances.

Portfolio highlights

• Fusebox Energy — Fusebox is a bridge between consumers and energy markets to save on energy costs and reduce CO2.
• Inion software — Renewable energy infrastructure provider (PV plant management, PV park SCADA racks, battery and EV charging integration and control)
• Thrust — Intelligent UAV Systems for Aerial Diagnostics Services

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 — Barking delights vehicle owners by enabling services such as parking, washing, charging, and fuelling from one user-friendly and convenient interface- the Barking 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 toan international 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.
• 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.
• Willow Wealth — Willow Wealth is an alternative investment platform focused on generating income streams for investors. Get exclusive access to private market investments.
• FIS.solutions — Loan Management System | Loan Servicing Software | Lending Software. Instalment loans, mortgages, car leasing & rentals, credit line, business loans, factoring

Portfolio highlights

• Tapaya — Tapaya is a fintech infrastructure company that provides payment acceptance software designed to turn any device into a payment terminal.
• Spotwise.ai —
• WhiteBridge AI — Whitebridge.ai will find everything about you online and provide you with a report. Check your online reputation or research people using AI. We help transform scattered online data into a coherent narrative of a your digital identity so that you can safeguard your reputation, understand prospects, prepare for pitches, hire wisely, and verify authenticity.

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

• Pynk — Pynk is the Multi-Award Winning London Fintech that rewards you for making predictions on assets like Gold, NASDAQ and Bitcoin. Free sign up, start today!
• 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

• Speiz — Speiz is a platform that enables revenue generation and sales for companies through the renting of warehousing space.
• Vegvisir — Vegvisir offers a 360-degree situational awareness system using XR tech for manned vehicles in defense and security sectors.
• Solfeg.io — Have trouble with your students in music lessons? Are they not engaged in your curriculum? Solfeg.io app will help you solve this problem. Our app for music teachers can increase students engagement by up to 90%. Learn how and try out our software for FREE here!

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

• 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 — GetHenry is a rapidly growing subscription service for market-leading delivery companies. We make sure that thousands of couriers are on the move safely, quickly and comfortably every day. In this way, we not only create added value for delivery services, but also help to reduce transport-related CO2 emissions on the last mile.
• 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

• Webel — Webel is an on demand Home Services Marketplace (cleaning, nannies, tutors...) where clients can search, book, compare, pay and review these services. Thanks to a deep analysis of the current methods for hiring these services and the competition outlook, we have created a unique and revolutionary business model that will outperform the market.
• GitHits — GitHits gives AI coding agents access to open-source code
• 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

• Adeffi — Adeffi is a tech-enabled ad marketplace revolutionizing OOH and DOOH advertising with innovative, data-driven solutions and gig economy integration. Since 2019, we’ve leveraged technology to transform the physical world into dynamic ad opportunities, helping brands connect with target audiences through impactful outdoor strategies. Profitable andsurpassing $1M in annual revenue in 2024, Adeffi is reshaping the future of advertising in Bangladesh and expanding to cities in India, Nepal, Thailand and Vietnam.
• Airwrk — Hire through platform or through consulting & services. Source, vet, & hire pre-vetted global talent with state-of-the art AI recruiting tech.
• Shuttle — Shuttle is a mass-transit startup based in Bangladesh that provides safe transportation at an affordable fare by moving more people with fewer vehicles and caters to both B2B and B2C customers.

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

• Planet42 — Having your own car has never been easier. Planet42 is a vehicle rental company offering rent-to-buy car service for private clients.
• LynxPower — Cleantech platform offering wireless metering and AI-driven energy management to track, analyze, and optimize energy use in real time.
• DriveX Technologies — Decrease your average claim size with AI vehicle inspection tool for CASCO pre-checks and windshield claims.

Portfolio highlights

• eAgronom — We enable companies to achieve their sustainability goals while supporting farmers in generating additional revenue, improving soil quality, and accessing better financing.
• 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

• Neurosalience — Neurosalience develops a tool for the early detection of dementia from structural MRI scans.
• 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.
• Jälle Technologies — Jälle Technologies create advanced recycling technologies that transform battery waste into high-value resources.

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

• LynxPower — Cleantech platform offering wireless metering and AI-driven energy management to track, analyze, and optimize energy use in real time.
• MarkeDroid — MarkeDroid is Energy Orchestration Platform that helps installers and siteowners profit from turning traditional energy systems into AI-powered solutions.

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

• 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

• FaceUp — Whistleblowing System for companies and schools. FaceUp is an anonymous reporting channel for those who care. Try FaceUp for FREE.
• Zerops — Deploy, manage, and scale your apps with ease. Zerops is a developer-first cloud platform with built-in CI/CD, managed databases, and automatic scaling.
• Ranketta — Ranketta is a visibility engine driven by AI that makes sure your brand appears first.

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

• 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

• Macai — Ceramica di Caltagirone. Bomboniere Pigne e Teste di Moro. Autentica ceramica siciliana, bomboniere siciliane . Ceramiche Online
• MAX — Make mobility accessible, safe, reliable, and sustainable for 1 billion Africans
• Payflow — Payflow is an employee benefit that companies can offer to their employees. Payflow provides employees instant access to earned salary to improve their financial well-being. Companies benefit from improved productivity and engagement, with no impact on cash-flow.Payflow was founded in 2020, and it is a Rocket Internet backed venture based inSpain.

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

• KWOTA — Kwota offers digital validation and trading services for recycled material CO₂ emissions.
• 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

• 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

• 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

• 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!
• Valmet Automotive — Valmet Automotive, a Uusikaupunki, Finland-based electric vehicle developer and manufacturer. Valmet Automotive provides engineering, manufacturing and business services for the automotive industry. In 2009, the company generated net sales of €56m and employed some 800 people. It manufactures Porsche Cayman sports cars, electric Garia golf carsand THINK City urban cars in Uusikaupunki, Finland. Cuca
• 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

• 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.

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

• 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

• Jatri — Jatri is a public transport journey planner, digital ticketing and mobility marketplace, driving productivity by helping drivers to offer reliable transport to the commuters through our state-of-the-art technology.
• Klaus — Klaus is a conversation review tool that improves customer service quality by making internal feedback easy and systematic. It also integrates with your help desk, good for improving the quality of answers and on-boarding new agents. They also connect to your favorite help desk solution and saves time on fumbling around with spreadsheets and comingup with the review system.Klaus is based in Tallinn, Estonia.
• SegmentStream — SegmentStream is a data intelligence platform which helps collect and unify from different data sources into own data warehouse for advanced analytics and attribution. Our solution is trusted by leading brands such as Benetton, Nespresso, New Balance, myToys, Eventim Group, and others.

Portfolio highlights

• TVO — TVO engages in the production of sustainable electricity from the Olkiluoto nuclear power plant.
• UAB Rudina — UAB Rudina operates in construction, specifically building services/new building construction.
• Kojamo Group — Kojamo plc will focus on real estate investments in Finland, renewing rental housing to make it increasingly attractive by developing new types of homes and services. The solutions promote work-related mobility in urbanising Finland, increase well-being and help preserve the environment. The vision of the housing investment company is to be apioneer in housing and the customer’s number-one choice.

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

• 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

• 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

• 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

• Ziro — We are a technology company building a game-changing financial ecosystem for the Traditional Trade Channel. With our payment method CPGs, distributors and B2B marketplaces can offer inventory loans to small retailers without any risk, while eliminating cash collections, reducing logistic inefficiencies, and enjoying an increase in sales. With ourflexible payment options, distributors and small retailers can improve cash flow, build credit history, and grow their businesses.Ziro democratizes TRADE CREDIT. With our B2B BNPL service, manufacturers, wholesalers, and B2B suppliers can offer credit terms to their MSMEs customers without any risk while enjoying an increase in conversion, average transaction value and loyalty from customers even as first time buyers. With flexible payment options, buyers can improve cash flow and grow their businesses.
• 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

• Meld — Meld empowers developers to build a Multi Vendor Fintech stack. With a few lines of code, developers gain access to a wide range of financial integrations across multiple domains. Meld helps you lower your overall 3rd party vendor costs, increase coverage and conversion rates, and save you time by launching integrations across markets faster. Weprovide performance analytics for every provider you integrate with - putting you back in control of your fintech stack.
• 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

• 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 — Rollo Robotics develops autonomous monowheel security robots using gyroscopic stabilisation technology.

Portfolio highlights

• LynxPower — Cleantech platform offering wireless metering and AI-driven energy management to track, analyze, and optimize energy use in real time.
• ProcurementFlow — Reduce time to market for new products! Simple procurement teamwork software for keeping the communication and procurement process in the flow. Requisition management, eSourcing, SRM.
• DriveX Technologies — Decrease your average claim size with AI vehicle inspection tool for CASCO pre-checks and windshield claims.