Carbono3 Ventures

Carbono3 Ventures is an impact-focused venture capital firm founded in 2018 by Carlos Domínguez Rullán and based in San Juan, Puerto Rico. The firm advises, supports, and invests in impact-driven companies across Latin America and Spain, operating across 11 countries including Mexico, Ecuador, Colombia, Argentina, Peru, Bolivia, Guatemala, and Uruguay. Carbono3 has supported over 60 startups and helped them raise $22 million in aggregate capital. The firm invests primarily at the Pre-seed and Seed stages, with typical checks of $100,000 to $500,000, using direct investments, specialized funds, and SPVs on standard terms of 2.5% management fee over four years and 20% carried interest. Notable portfolio companies include TuBanc in fintech and Wealth2B, alongside pharma investments such as MBQ Pharma. The firm also managed a $7 million fund from the Ricky Martin Foundation focused on Puerto Rico's post-hurricane recovery — targeting affordable housing and renewable energy — and launched C3 Lab with $2.5 million in CDBG-DR federal funding. Carbono3 specifically targets Hispanic founders globally and companies with operations across Latin America and Spain, with a pronounced emphasis on fintech, climatetech, deep tech, and health and wellness sectors. Founder Carlos Domínguez Rullán leads alongside COO Luis Baz, bringing a mission-driven lens that treats environmental sustainability and social impact as investment criteria rather than secondary considerations.