Carbono3

Carbono3 is a venture capital and investment management firm structuring and managing capital vehicles — both proprietary and third-party — to catalyze companies shaping the future. Founded in 2018 by Carlos Domínguez Rullán, the firm is headquartered in San Juan, Puerto Rico, operating across Latin America and Spain. Beyond direct investing, Carbono3 runs Positive Angels, a co-investment network for angel investors and family offices, plus advisory, mentorship, and a proprietary AI platform for deal sourcing and due diligence. Its sector thesis spans fintech, climatech, deep tech, and impact tech, prioritizing scalable models with measurable social or environmental impact. The firm invests primarily at the pre-seed stage across Latin America and Spain. Notable investments include Zero Damage, OlePay, MBQ Pharma, and Cultimar Technologies, alongside a $7 million post-hurricane recovery fund managed for the Ricky Martin Foundation. Carbono3 became a Certified B Corporation in 2024 and joined the UN Global Compact in 2023, reflecting an investment approach built around integrity, sustainability, and measurable impact alongside financial return.