Top 10 CleanTech Angel Investors in Spain (August 2026)

Portfolio highlights

• Reby — Reby is a European multinational company involved in the design, construction, financing, operation (DBFO) and maintenance of public sharing transport infrastructure. Today, Reby is the Southern Europe leader in the micromobility field, with over 15 agreements with public administrations. The company was founded by four entrepreneurs (Pep Gómez,Kiran Thomas, Cristina Castillo, and Guillem Pagès) in 2018 as a micromobility operator, winning the first public tender in Europe for kickscooters, in the city of Zaragoza (Spain). During the COVID-19 pandemic, the company increased its R&D efforts, expanding into the MaaS (mobility-as-a-service) economy and the investment banking/franchising business for public administrations (through PPPs), public utility companies, as well as SMEs.
• Plug — Plug is a wholesale auction that facilitates online buying and selling of used EVs.
• Blush — Blush is a dating app that transforms online connections with community events, virtual courting, and bonding over shared local favorites. It is a dating platform for those valuing meaningful connections, local community, and a shared mission to inspire positive change in the world. The innovative matching algorithm of the company connects theonline and offline worlds. Users share favorite local spots, and the algorithm forms meaningful connections, fostering bonds over common interests. This personal approach grounds online dating in real-life experiences.

Portfolio highlights

• Humera — Humera - AI CAPTCHA That Knows You're Human
• Allonic — Allonic is a robotics hardware company pioneering 3D Tissue Braiding, a new manufacturing platform for producing integrated, compliant, bio-inspired robotic bodies through a single, fully automated production process. By eliminating assembly-heavy designs and supply-chain complexity, Allonic enables significantly faster iteration, lower costs, andsafer, more dexterous robots to be built. Originally founded from Hungary and operating internationally with a US HQ and a growing team of 15, Allonic is building the hardware foundation for the next generation of intelligent machines.
• Heywa Labs — Heywa Labs develops Generative UX (GenUX), an AI-driven interface layer that creates dynamic, adaptive user experiences beyond static text or links. Their flagship app, Heywa, delivers visual, tappable "stories" of cards for tasks like cooking, travel, fitness, and DIY, reconfiguring in real-time based on user interactions.

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.
• Altan — Altan is an AI-driven team that autonomously transforms ideas into fully-functional digital products using its innovative Collective AGI (CAGI) multi-agent framework. Altan handles end-to-end software development—from frontend to backend, including infrastructure, testing, and iteration—allowing users to focus solely on their vision.Founded withthe mission of empowering everyone with a superhuman AI team available 24/7, Altan uniquely combines frictionless infrastructure and a transparent, no-code interface for easy modification and control of AI-generated outputs.Altan primarily serves entrepreneurs, operational leaders, digital agencies, and freelancers, enabling rapid prototyping, launching, and scaling of digital solutions without traditional development teams. Headquartered in Barcelona, Altan emphasizes community engagement (#BuildInPublic), rapid innovation, and continuous improvement, supported by an attractive Employee Stock Option Pool (ESOP).Altan aims to redefine industry standards with benchmarks for end-to-end software creation and targets significant market milestones, including autonomous SaaS growth and substantial recurring revenue.
• Piper — Piper is a next-gen sales productivity and intelligence solution that puts AI to work for both sales reps and sales managers.Through its advanced interpretation of sales conversations from video calls, emails and audio notes, Piper automatically populates deal-related fields in the CRM, freeing up sales capacity and ensuring unbiased, highquality data.Piper further lightens the daily workload of salespeople by assisting through every stage of the client engagement: enhancing meeting prep, drafting follow-up emails, scheduling the next call, and more.For sales reps, Piper is a game-changer, letting them focus on selling without the admin drag. For sales directors and revenue ops, Piper provides top-notch data insights into the sales pipeline, enhancing sales forecasting and data-driven decision-making.

Portfolio highlights

• Gheorg — Around 1 million children in Australia have diagnosable anxiety. Two-thirds of them will never get the help they need. Gheorg is on a mission to change that. We're aiming to reduce childhood anxiety and our new app helps parents and children at home. Sign up to get the app on our website.
• XeroCodee — XeroCodee is a groundbreaking AI-powered SaaS application that revolutionizes cloud infrastructure development. Our platform simplifies the entire process, from building and managing cloud infrastructure to optimizing codebase and reducing costs. With our AI capabilities, businesses can optimize their cloud resources, identifying cost-savingopportunities and eliminating inefficiencies. Additionally, our AI algorithms optimize codebase for enhanced performance, scalability, and reliability. We take security seriously and provide automatic and continuous security scans to detect malware and vulnerabilities in the cloud infrastructure. XeroCodee empowers businesses to harness the full potential of the cloud while maximizing efficiency and minimizing costs. Join us and experience the power of AI-driven cloud infrastructure that delivers unparalleled performance, security, and cost savings.
• Invisible Hand — Unlock up to 40% profit uplift with the help of our realtime analytics, all in just a few clicks.

Portfolio highlights

• Digital Earth Solutions — Digital Earth technologies hope to aid in the preservation of marine habitats through creative ocean modeling technologies

Portfolio highlights

• Reby — Reby is a European multinational company involved in the design, construction, financing, operation (DBFO) and maintenance of public sharing transport infrastructure. Today, Reby is the Southern Europe leader in the micromobility field, with over 15 agreements with public administrations. The company was founded by four entrepreneurs (Pep Gómez,Kiran Thomas, Cristina Castillo, and Guillem Pagès) in 2018 as a micromobility operator, winning the first public tender in Europe for kickscooters, in the city of Zaragoza (Spain). During the COVID-19 pandemic, the company increased its R&D efforts, expanding into the MaaS (mobility-as-a-service) economy and the investment banking/franchising business for public administrations (through PPPs), public utility companies, as well as SMEs.
• Refurbed — Refurbed operates as an online marketplace for refurbished products in the german-speaking world. It sells renewed phones, laptops and tablets which are up to 40% cheaper and 100% more environmentally friendly than their brand-new, store-bought counterparts. Refurbed devices are renewed through a 40-step process, making them look like new andfunction like new. On top of that, each device comes with at least a 12-month guarantee.The company was founded in 2017 and is headquartered in Vienna, Austria.
• Opal — Protect your focus time. Schedule your days, block distracting apps and focus fully, on your iPhone, Chrome, Firefox, and Safari browser. Try Opal for Free!

Portfolio highlights

• Jeff — Jeff is a company created in 2015 by Eloi Gómez, Adrián Lorenzo and Rubén Muñoz, three Spanish entrepreneurs. It started as a home laundry and dry-cleaning app, but is currently in an expansion process in which, in addition to laundry service, different day-to-day services are added such as hairdressing and beauty, fitness and massages, becomingthe first international omnichannel ecosystem of day-to-day services. It is available to anyone who wants to invest or undertake the necessary solutions to launch their own business under the business lines of the Jeff brand.
• RushOrder — Based in Los Angeles, RushOrder is a food ordering technology company, focused on building the best mobile platform to connect hungry users with a uniquely curated restaurant network. RushOrder is built by an entrepreneurial team of hard-working and creative individuals, who truly care about making something that people will love. Establishedin 2013, RushOrder launched its full services to the public late 2014.
• Stan World — Stan World is a Fandom Party World where fans can party & win rewards for their Stars, 24/7.

Portfolio highlights

• VICIO — VICIO is a cloud kitchen operator who sells burgers through their online store. The company's platform provides quality burgers cooked to particular requests, french fries, and various beverages, allowing burger fans to order and enjoy their favorite burgers.
• Be Mate — BeMate is a collaborative community in which they connect travelers, hosts unique apartments and hotels.
• Pangea — Pangea is a travel store with an innovative and disruptive concept in the tourism sector that brings together countries in one place. Pangea is an omnichannel travel agency that was born with the aim of revolutionizing a sector that until now had not evolved much. Pangea has a reference store in Madrid of more than 1,500 m2 that includes acafeteria, specialized bookshop and thematic selling areas with expert advisors in each destination. This specialized advisory service offered by Pangea, together with its differential product range, has allowed it to exceed the figure of 9 million euros of sales in its first year of life. Pangea has incorporated new investors to replicate the success of its business model with the opening of new stores in different cities and strengthen its online business strategy.Pangea was founded on 2014 and is headquartered in Madrid, Spain.

Portfolio highlights

• Digital Earth Solutions — Digital Earth technologies hope to aid in the preservation of marine habitats through creative ocean modeling technologies

Portfolio highlights

• Jeff — Jeff is a company created in 2015 by Eloi Gómez, Adrián Lorenzo and Rubén Muñoz, three Spanish entrepreneurs. It started as a home laundry and dry-cleaning app, but is currently in an expansion process in which, in addition to laundry service, different day-to-day services are added such as hairdressing and beauty, fitness and massages, becomingthe first international omnichannel ecosystem of day-to-day services. It is available to anyone who wants to invest or undertake the necessary solutions to launch their own business under the business lines of the Jeff brand.