Top 50 Renewable Energy VC (Venture Capital) Funds in Spain in May 2026

Portfolio highlights

• Internxt — Here at Internxt, we're helping shape an Internet that truly respects you. Our first service, Internxt Drive, is a free & fully private cloud storage service and is part of our disruptive cloud infrastructure. Distributed, Trustless. Switch for free.
• VICO Ahorro — VICO Ahorro uses a digital system that evaluates, compares, and automatically manages the best market offers to help consumers save money on regular costs like energy, insurance, and telecommunications.
• ODOS — Carbon Harvesters is an ag-tech start-up that increases the resilience of rural communities by facilitating cost-effective decarbonisation of the dairy sector.

Portfolio highlights

• TetraxAI — TetraxAI helps renewable energy developers and investors automate due diligence and risk assessment - 100x faster, 10x cheaper, with full legal traceability.
• bound4blue — bound4blue provides Rigid Sails Technologies for vessels which deliver fuel consumption reductions of up to 40%.
• Niche Mobility — Niche developes electric propulsion systems for e-bicycles with integrated digital gearchange.

Portfolio highlights

• Entrix — Entrix is an optimisation and trading platform for grid-scale battery storage that accelerates the transition towards a clean energy future. Our mission is to enable the most effective use of green energy and to ensure the reliability of the future energy system. We provide state-of-the-art technology and services to both asset owners and potentialinvestors across the globe.
• Samara — Samara is a cleantech company.

Portfolio highlights

• XFuel — XFuel is a fuel company that provides green and clean fuels to distributors and consumers. The company was founded in 2010 and is based in Palma de Mallorca, Baleares.
• Labster — Labster empowers educators to reimagine their science courses with immersive online simulations. Request a demo to discover how Labster engages students, trains lab skills, and accelerates learning.
• Minimum — Take control of your organization's carbon accounting and management with granular, robust and auditable emissions data.

Portfolio highlights

• bezahl.de — Bezahl provides digital and automated payment management and solutions.
• Remuner — Say goodbye to spreadsheets. Remuner is the sales compensation software that automate your commissions and drive performance.
• Shalion — Shalion enables ambitious brands to navigate their journey to digital shelf excellence with a unique, unified digital shelf & retail media insights solution.

Portfolio highlights

• Karat Financial — Karat is the best card for creators, helping you save money, earn rewards, and grow your channel faster - because content IS a business.
• Otis — Otis is a fractional ownership platform that makes it possible for almost anyone to buy and sell shares of collectibles, sneaker grails, rare comics, art, and more. Low minimums. Get started today.
• Reservoir — Infrastructure and APIs to bring efficient token markets to every chain, wallet, and app

Portfolio highlights

• trawa — The partner for renewable and affordable electricity for businesses. Get electricity directly from solar and windparks with corporate PPAs.
• Equitable Earth — Built upon next-generation digital MRV, the Equitable Earth Standard is designed to verify impact on climate, biodiversity, and livelihoods.
• Minimum — Take control of your organization's carbon accounting and management with granular, robust and auditable emissions data.

Portfolio highlights

• Ubyko — Ubyko focuses on robotics and automation solutions for last-mile logistics in urban retail environments.
• Muxunav — Muxunav specialize in digital payment systems, they might be working on technologies like mobile payment solutions, online transaction systems, digital wallets, or even blockchain-based payment methods.
• Opportunity Health — Self-Applicable & Life-Saving | Fast, safe, and effective in emergencies | Contact us! | Opportunity Health

Portfolio highlights

• MixRift — MIXRIFT - game developers specialized in Mixed Reality
• unspun — From 3D scan to perfect fitting custom jeans. unspun makes each pair of jeans unique to your actual body and design. On a mission to reduce global carbon emissions by 1%. As seen in Fast Company's World Changing Ideas, Time's Best Inventions, and PopSci's Best of What's New. Welcome to the future of apparel.
• Mesa Quantum — Unlock the potential of chip-scale quantum sensing for enhanced Position, Navigation, And Timing capabilities. Explore Mesa Quantum's practical solutions.

Portfolio highlights

• Swipoo — Transferencia de vehículos y cambio de nombre automatizado.
• HOLO — Holo Health is a startup revolutionizing personalized health by blending advanced laboratory testing, real-time tracking from wearable devices, and artificial intelligence to deliver highly customized health insights and actionable plans.
• Modular DS — Modular DS helps agencies and freelancers manage WordPress maintenance with updates, backups, monitoring, security, and more from one dashboard.

Portfolio highlights

• HySun — Hysun is a company created by Nanogap and Tewer, which has developed a new solution to produce 100% renewable.
• SkySpecs — Powering Every Connection Purpose-built autonomous drones perform at record-setting inspection speed to minimize downtime while capturing the
• RayGen — We're powering the future with low cost, high efficiency solar power technology and renewable energy storage. Contact us for more details today.

Portfolio highlights

• XFuel — XFuel is a fuel company that provides green and clean fuels to distributors and consumers. The company was founded in 2010 and is based in Palma de Mallorca, Baleares.
• Primary Bio — Our mission is to end the spread of infectious disease by providing simple, affordable diagnostics and preventative care at scale.
• Sukha — The Focus App for Healthy Productivity. Sukha offers focus music, timers, AI assistants and more while you work.

Portfolio highlights

• Doxel Petcare — Doxel manufactures and retails 100% natural and premium quality plant-based products for pets.
• IPI Innovation — IPI Innovation develop scalable business models based on the intellectual property.
• Biovec Ambiente — Biovec Ambiente is a manufacturer of Renewable Energy Semiconductor.

Portfolio highlights

• Fuchs & Eule — VALYRIA is an expert in buying and selling apartment buildings.
• ETPA — Etpa, the energy trading platform driving the sustainability transition. Join us for transparent trades, innovative solutions, and the fastest platform.
• Frequenz — Frequenz empowers developers with innovative tools to orchestrate Decentralized Energy Resources (DERs) efficiently. Join us revolutionizing the way the world manages power.

Portfolio highlights

• Orbidi — Orbidi is a digital marketing agency that provides SEO, website building, and Google Maps integration services for businesses.
• Ironchip — IRONCHIP means location-based security. We create cybersecurity solutions based on our exclusive unspoofable geolocation technology.
• The Channel Store — The Channel Store is a company specializing in the creation, distribution, and monetization of various types of channels, particularly in the FAST (Free Ad-Supported Streaming TV) and AVOD (Ad-Supported Video on Demand) sectors. It operates as a B2B service provider that manages content negotiations, integration, and monetization for its partners,enabling broadcasters, content owners, telcos, and streaming services to access and distribute a wide range of live and on-demand content globally.

Portfolio highlights

• Bleta — Bleta designs a tablet for elder people that connected with loved ones and improves the quality of life.
• METLY — METLY simplifies the process of discovering new products, negotiating, and closing deals in the pharmaceutical industry. Connect with trusted partners and speed up your product launch through our innovative platform.
• Solfy — Solfy is a Marketplace for self-consumption of solar energy.

Portfolio highlights

• NabraWind Technologies — NabraWind Technologies is a renewable energy company that designs and develops advanced wind technologies for wind turbine components as well as engineering services advisory.Nabrawind offers two top level products for the main components of the new XXL wind turbines:1. NABRAJOINT. A modular blade joint based on a new patented boltedconnection, which can be integrated into all the wind turbine blade structures. 2. NABRALIFT. A self-erecting tower based on a new patented frame structure, which can be integrated into all the wind turbine tower designs.

Portfolio highlights

• ecoLocked — ecoLocked is your partner to create a climate-positive built environment. We develop CO2-optimized recipes for concrete based on carbon-negative biochar admixes. Our admixes allow to store captured CO2 in buildings, reduce direct emissions from concrete production, and provide multiple functional benefits, such as improved thermal insulation.
• Entocycle — Entocycle is developing the world’s most efficient and sustainable way to produce protein. The rainforests and savannahs of South America are being destroyed at shocking rates in order to grow crops such as soy to feed farm animals. Using insects to feed livestock requires significantly less land and water compared to soy whilst being a naturalpart of the diet for many animals including fish, chickens and pigs. Their technology is significantly more efficient at producing protein than traditional methods of production as their insects are vertically farmed and not restricted to floor space or area. Thanks to their automated system they can produce at industrial scale and offer farmers a cost-effective and sustainable alternative to soymeal and fishmeal.
• Wayout International — WAYOUT offers complete water production systems for local coverage of perfect drinking water on a commercial platform with minimal eco footprint.

Portfolio highlights

• NabraWind Technologies — NabraWind Technologies is a renewable energy company that designs and develops advanced wind technologies for wind turbine components as well as engineering services advisory.Nabrawind offers two top level products for the main components of the new XXL wind turbines:1. NABRAJOINT. A modular blade joint based on a new patented boltedconnection, which can be integrated into all the wind turbine blade structures. 2. NABRALIFT. A self-erecting tower based on a new patented frame structure, which can be integrated into all the wind turbine tower designs.

Portfolio highlights

• Aortyx — With a focus on aortic dissection, Aortyx has developed a bioresorbable endovascular patch designed to seal the entry tear, delivered through a proprietary dual-steerable catheter.
• Nido — Heating & cooling accounts for nearly half of all energy consumption and 40% of energy-related carbon dioxide emissions. In the EU 65M+ boilers are over their useful life and 95% of them use fossil fuels and these need urgent change.At Nido, we are streamlining heat pump installation in the residential sector, enabling users to transition toclean heating & cooling faster with affordable pricing. We also support installers get the best out of their time by removing time consuming tasks and allowing them to focus on their preferred task - home installations!
• Ocean Ecostructures — We convert maritime infrastructures into 'nature positive' spaces through our multi-technological solution.

Portfolio highlights

• Clever Solar Devices — Real-time photovoltaic intelligence. Measured, not estimated. Solar power maintenance with real data AI. Unlock full potential of your solar assets.

Portfolio highlights

• Biovec Ambiente — Biovec Ambiente is a manufacturer of Renewable Energy Semiconductor.

Portfolio highlights

• Biorce — Biorce is an innovating HealthAI startup committed to transforming drug development through the use of artificial intelligence.
• GoParity — GoParity is an online savings and investment platform that uses a P2P business model to simplify investment and allow citizens and companies to get a decent return on their sustainable loans. Citizens and companies invest their funds in projects they believe in to generate economic, social and environmental impact.We are driving the transitiontowards a more sustainable and inclusive economic system, making investment in sustainable solutions accessible to all, from citizens to small enterprises. Join us @ www.goparity.com
• Win-Win — We're WNWN Food Labs and we love food. We're creating delicious, sustainable and ethical alternatives to unsustainable and ethically dubious foods. We're starting with cacao-free chocolate. Changing chocolate? It's Win-Win #alt-chocolate #altchocolate #alt-universe #altuniverse #alt-protein

Portfolio highlights

• HySun — Hysun is a company created by Nanogap and Tewer, which has developed a new solution to produce 100% renewable.

Portfolio highlights

• HySun — Hysun is a company created by Nanogap and Tewer, which has developed a new solution to produce 100% renewable.

Portfolio highlights

• bound4blue — bound4blue provides Rigid Sails Technologies for vessels which deliver fuel consumption reductions of up to 40%.
• TRACT — Discover how TRACT streamlines emissions tracking, social risk mapping, and compliance, helping your supply chain meet sustainability goals effectively.
• SeaStock — SeaStock creates global marine science solutions to produce and extract compounds derived from seaweed and algae. Our products benefit the agriculture, cosmetic and pharmaceutical industries which require sustainably sourced and naturally derived raw materials.

Portfolio highlights

• Apptronik — We are Apptronik, an award winning robotics company offering a family of innovative robotics products, components, and engineering services available to hobbyists and advanced researchers alike.
• OpenSolar — OpenSolar connects homeowners, solar professionals, and partners with free software to design, sell, and manage fast, accurate solar projects.
• Britto's Brainwaves — Britto's Brainwaves is a healthcare company that emerges as a beacon for those seeking in-depth medical insights.

Portfolio highlights

• Elcogen — Elcogen is a manufacturer and developer of high-performance anode-supported Intermediate Temperature Solid Oxide Fuel Cells (IT-SOFC) and SOFC stacks based on proprietary materials and technological solutions. Fuel cells will help enable a clean energy future. Fuel cell technology significantly reduces emissions from natural gas systems,delivering twice the power for the same amount of gas. Fuel cells also unlock greater renewable energy generation, converting electricity to hydrogen for long-term storage. Solid oxide fuel cells are the most efficient energy conversion method possible, and Elcogen manufactures the highest performing SOFC. Elcogen makes the fuel cell technology underpinning the clean energy systems of the future.Elcogen was established in 2001.
• HIF Global — HIF Global is an eFuel company engaged in the production of carbon neutral fuels.
• Baseload Capital — At Baseload Capital we dream of a planet in balance with resilient societies that run on renewable geothermal energy.

Portfolio highlights

• Robinsun — Robinsun's Plugin Solar Kits make you save on your energy bill instantly and help in the fight against climate change. Get your Plugin Solar Kit today and generate your own energy for self consumption.
• ArcaScience — Achieving worldwide biomedical targeting, identifying adverse events, and mastering interoperability down to the tiniest form of data extraction and visualization is what ArcaScience does on a daily basis. User-friendly interface generating instant hypotheses, extracting therapeutic insights in seconds, and showing incredible graphicrepresentations to pick up any evidence made clear instantly.

Portfolio highlights

• Robinsun — Robinsun's Plugin Solar Kits make you save on your energy bill instantly and help in the fight against climate change. Get your Plugin Solar Kit today and generate your own energy for self consumption.

Portfolio highlights

• Synergym — Synergym is a fitness center that provides Zumba, cycling, pilates, yoga, HIIT, gymnastics, and personal training services.
• Eave — Eave is a renewable energy company that specializes in providing solar panels and car charger points installation services.
• fonYou — fonYou transforms mobile operators into digital, analytics-driven businesses that can boost their bottom line while increasing subscriber satisfaction. fonYou proprietary iCarrier platform brings together AI and sales automation with new digital channels to deliver the right offer at the right time for every customer.

Portfolio highlights

• NovaMea — NovaMea is a cleantech startup that designs and commercializes electrochemical systems for energy storage and conversion.Its purpose is to create technology, services, and products for the storage and conversion of energy using electrochemical processes, as well as to produce, store, sell, and distribute these products and their components.
• Perciv AI — Perciv provides artificial intelligence (AI)-based software solutions to unlock the latent possibilities of radars and allow resilient and economical autonomous systems with Lidar-like performance even in severe weather circumstances.
• Neuron Soundware — Neuron Soundware uses Artificial Intelligence and Machine Learning in combination with the analysis of sound and other physical parameters.

Portfolio highlights

• Smart Point — We are entering the age of convenience and immediacy. A Smart Point automates the reception of any product you shop online, and any service available in your city, from pharmaceuticals, to flowers and dry cleaning. All delivered in 1 hour and available to pick up at your convenience.
• Parabol — As Parabol, we use our innovative power for smart mobility systems and traffic safety all over the world.
• Fastlane — Discover seamless logistics control with our cutting-edge transport management software. Streamline operations, optimize routes, and enhance efficiency effortlessly. Try our solution for comprehensive control today!

Portfolio highlights

• Reinforce 3D — Reinforce3D develops proprietary technology for reinforcing 3D-printed parts, called the continuous fiber injection process (CFIP)
• ALCYON PHOTONICS — ALCYON
• Bioinspired Materials — Bioinspired Materials is a Biotech-based entrepreneurship project with the participation of the Universitat Pompeu Fabra. The company develops wastewater valorization that produces biological products of high value in the market. BIOM was founded in 2019 and is based in Barcelona, Spain.

Portfolio highlights

• Voovio — Voovio's Simulation Software enables the process industry to avoid errors during SOP execution, reducing downtime & increasing safety in operations & maintenance.
• Cella Medical Solutions — Cella Medical Solutions allows surgeons to analyze and simulate complex surgery using the latest technologies, dramatically improving results.
• Greene Waste to Energy SL — Greene Waste to Energy SL develops innovative gasification technology for energy recovery of biomass and organic waste. The company is dedicated to the design, manufacture, installation and commissioning of biomass and waste gasification plants and generation of renewable energy (electricity and heat).

Portfolio highlights

• Faradai — Dedicated software to help you manage your carbon, ESG and energy data
• Modulous — The Modulous Fastrack solution is a digitally integrated process enabling the rapid design, assembly and delivery of high quality, affordable, sustainable and smart homes.
• Hyperion Robotics — We are accelerating the transition to sustainable and automated construction with Concrete 3D Printing.

Portfolio highlights

• Biovec Ambiente — Biovec Ambiente is a manufacturer of Renewable Energy Semiconductor.
• Rentall & Partners — Rentall & Partnersis a platform for renting products. They provide rental solutions for products such as consumer electronics, mobility, and sports. They offer different durations and fees for the various products in their portfolio, so that their customers can choose the one that suits their needs. For inquiries, telephone and email contactare used.

Portfolio highlights

• coometes — coometes offer social institutions a comprehensive solution for managing food aid and basic necessities for vulnerable persons.
• Begas Motor — Begas has designed and manufactures the first engine for industrial vehicles powered 100% by LPG (Liquefied Petroleum Gas or AUTOGAS). Ability to remotorize vehicles and make them ecological with Euro VI certificate.
• Emica Solar — Emica Solar is a company which develops the floating solar energy.

Portfolio highlights

• Peptomyc — Peptomyc is a company focused on the development of a new generation of cell-penetrating peptides (CPPs) targeting the Myc oncoprotein for cancer treatment. The company was founded in December 2014 and it is based on Dr. Soucek’s scientific research in Omomyc (the best direct Myc inhibitor known to date) over the last twenty years.Currently,cancer incidence in the world exceeds 14 million cases per year and results in 8 million deaths annually. Moreover, such numbers are forecast to rise by 75% over the next 20 years (World Cancer Report. International Agency for Research on Cancer 2014). At the moment, standard therapies include surgery, radiotherapy, chemotherapy, and, in a restricted subset of cancers, precision medicine. Unfortunately, very often these therapies fail, due to the development of resistance.Peptomyc has adopted a different strategy based on the inhibition of the oncoprotein Myc, which is found deregulated in the majority of human cancers. Myc holds a non-redundant function in cancer around which tumors cannot evolve, hence targeting Myc is the most promising therapeutic opportunity to date. Although Myc plays a central role in cancer there is currently no Myc inhibitor in the market.
• Medlumics — Medlumics is a medical device start-up born in 2009 from a compromise with improving human living standards by means of technology.
• Atlas Molecular Pharma — Latest News Your browser does not support the video tag.

Portfolio highlights

• H2SITE — We provide fully integrated systems to produce on-site high quality hydrogen.

Portfolio highlights

• Rever.vn — Rever is a technology company operating in the field of Real Estate, officially launched in early 2016. With a team of senior personnel in many fields, Rever develops online real estate distribution system based on the map, providing the perfect brokerage service, creates a smart and high-performance process of buying, selling, renting real estate,based on a combination of modern technology and commodity consultants. head.
• Husk Ventures — Generate new revenue streams for rural communities by upcycling rice husk to create sustainable products that contribute to a circular economy.Husk Ventures aims to increase the incomes of rice farmers’ and rural communities with access to innovative technologies and capacity building to convert rice husk into valuable products for local andinternational markets.The unique characteristics of rice husk (high lignin and silica content) make it an ideal material that benefit from being strong, fireproof, mould, and insect resistant.Some innovations exist in the market to create alternatives to wood by mixing rice husk with plastic or natural resins to create furniture or construction materials using similar technologies to wood plastic composites (WPC).Creating products using Rice Husk Composites is an opportunity to reduce deforestation and plastic consumption.
• Gene Solutions — Gene Solutions is a genetic testing company in Vietnam and the market leader for reproductive health tests, which respond to critical healthcare needs, such as helping parents detect chromosomal disorders during pregnancy, or preventing genetic problems, and helping to conceive a child (in-vitro fertilization – IVF).

Portfolio highlights

• Lawwwing — Lawwwing provides a distinctive solution in the market for website compliance. It's a platform that automatically adapts your website or online store to regulations, keeping it up-to-date and personalized.
• Rauda AI — Rauda is an artificial intelligence platform specialized in automating customer service with the best customer experience. Take a quantum leap in productivity, reduce costs and improve customer satisfaction with the power of generative artificial intelligence.
• CHECKTOBUILD — Compare automatically the reality of your construction inspection with the BIM Model and get an accurate as-built analysis.

Portfolio highlights

• Solarock — Solarock is a French solar panel installer specializing in residential and small commercial self-consumption. The company offers a turnkey solution combining quality, transparency, and local support, with certified technicians and a comprehensive service, from design to maintenance. Solarock relies on sustainable equipment, a local franchise model,and technological innovations to democratize access to efficient solar energy that is accessible to all .
• Ever Dye — A new standard for dyes. Naturally made, carbon emissions reducing, water protecting.
• SPRiNG Collective — SPRiNG is a consumer goods company that offers clean and efficient laundry and cleaning products, delivered in a 100% plastic-free box and directly in the mailbox. The company is headquartered in Paris, Ile-de-France, France by Philippe Cantet, Laure Favre, and Ben Guerville in 2017.

Portfolio highlights

• Agriloops — Agriloops is reinventing aquaculture to produce eco-friendly products that are healthier and tastier. To carry out this mission, the Agriloops team gives all its power to a sustainable and innovative production mode, by designing the first aquaponic farm in salt water.
• bound4blue — bound4blue provides Rigid Sails Technologies for vessels which deliver fuel consumption reductions of up to 40%.
• PierSight Space — PierSight is building a constellation of SAR satellites to provide persistent monitoring for the maritime industry.

Portfolio highlights

• EODev — EODev develops and industrialises sustainable, reliable and accessible energy solutions using hydrogen.
• VOLTA Entreprises — VOLTA Entreprises is a renewable energy producer. The Volta Group designs, finances, develops, constructs, and manages solar power plants in greenhouses, outdoors, and industrial and commercial structures. The entire value chain of energy projects is covered by the extensive expertise of the Volta Group. The Volta Group is a dependable partner forconsumers, governments, and companies.
• Nomad Solar Energy — Nomad Solar Energy, a subsidiary of Lone Lighthouse, is dedicated to the design and manufacture of photovoltaic solutions that deliver solar energy to all businesses and sectors without limitation. Our commitment is to develop products that respond to the demands of our clients, with the goal of pushing the energy transition in sectors that haveyet to begin in this field, by providing relevant innovations that complement and improve existing photovoltaic systems. A constantly developing R&D team is the driving force behind Nomad Solar Energy's ability to take on new challenges and achieve significant success in the solar industry.

Portfolio highlights

• Smallops — Smallops develops creative methods to combat climate change using nanotechnology.
• Cooling Photonics — Cooling Photonics delivers passive cooling solutions that reduce energy usage and have zero carbon emissions.
• Roseo Eólica Urbana — Roseo Eólica Urbana offers a management model to analyze and assess the business opportunities that arise from renewable energy generation. It develops urban wind energy, with the objective of achieving sustainable buildings and reducing fossil fuel use and greenhouse gas emissions by encouraging buildings to generate its own clean and safeelectricity.

Portfolio highlights

• Caura — All your car admin, on one app - Insurance, Tax, MOT, Clean Air Zones, City Charges, Tolls and more. Ultra-fast mobile payments on iOS and Android.
• Zeleros — Leaders in the development of hyperloop technologies, we are your new electrification & automation partner in the mobility sector.
• Smoove Fifteen — AkongCuan menghadirkan portal blog toto online serta link login bandar slot gacor resmi 2026 dengan sistem aman dan update terbaru setiap hari.

Portfolio highlights

• Hydrokemós — HYDROKEMÓS is a highly innovative SME specifically incorporated to improve and commercialize a novel electro-denitrification technology applied to water treatment. This technology removes nitrate from water but does not generate brines or other waste.
• BCN3D — BCN3D Technologies is one of the leading manufacturers of desktop 3D printers worldwide. BCN3D offers support and high-quality materials for your 3D printers projects.
• Ledmotive — ML138 ialah website yang menyediakan 138 game online mobile paling menguntungkan pasti menang dengan pola bocoran admin hari ini.

Portfolio highlights

• Zeleros — Leaders in the development of hyperloop technologies, we are your new electrification & automation partner in the mobility sector.
• Stellar — At Stellar we bring perfect internet on the move to vehicles and passengers, leveraging the combined strength of cellular, wi-fi, and satellite networks, through AI and fully integrated solutions. We offer SaaS, data plans, and all-inclusive options for enterprise connectivity needs on the move.
• unusuals — We are unusuals. We are AI. We are automatic detection. Take control of your infrastructure and start saving by unlocking visual data potential.

Portfolio highlights

• Zeleros — Leaders in the development of hyperloop technologies, we are your new electrification & automation partner in the mobility sector.