Isabel Rayo

Isabel Rayo is an Investment Director at Suma Capital, where she is part of the firm’s Venture team. Suma Capital describes SC Venture as its strategy for climate innovation through technology, structured around two funds: SC Climate Tech Ventures for early-stage companies and SC Net Zero Ventures for scale-ups. On Suma’s team page, Rayo states: “I lead the search and analysis of venture capital opportunities to scale technologies that help towards a zero net emissions economy, with special focus on renewable technologies and new business models associated with smart grids, storage and distributed generation.”

Her public LinkedIn profile places her at Suma Capital in Madrid and lists education at École Nationale des Ponts et Chaussées from 2015 to 2016. Public profile snippets also link her education history to ESADE Business School, but the degree details are not publicly visible in the sources reviewed.

Suma Capital has expanded from a Spanish sustainable-investment manager into a European platform with offices in Barcelona, Madrid, Paris, and Milan. Its SC Venture strategy has become a major part of the firm’s climate-tech activity, including the SC Net Zero Ventures fund created with Repsol and later closed at €210 million.

• Rayo’s stated focus is venture capital for technologies that advance a “zero net emissions economy,” especially renewable technologies, smart grids, storage, and distributed generation.
• SC Venture backs climate-innovation companies across two stages: emerging technologies in early commercialization and scale-ups with validated models ready to expand.
• Early-stage criteria: Pre-Series A / Series A companies in energy, industry, and mobility; mainly Spain, with the rest of Europe also in scope; tickets of €0.5M-€3M.
• Scale-up criteria: Series B / C+ companies with strong commercial traction, impact orientation, and the ability to scale globally; tickets of €5M-€15M; Europe and North America in scope.
• Suma’s stated areas of interest include advanced mobility, industrial decarbonization, renewable energy, and enabling digital technologies such as AI, automation, blockchain, and energy-system software.
• SC Net Zero Ventures targets mature startups in Europe and North America developing technologies for low-carbon mobility, industrial decarbonization, and renewable power.