Colombian-American financier, Alejandro Santo Domingo Davila has an estimated net worth of $13.5 billion in April 2019. He is the son of Julio Mario Santo Domingo and Beatriz Dávila, and the half-brother of Julio Mario Santo Domingo, Jr. Alejandro Santo Domingo Davila is the richest new billionaire in the world at age 35, who became the face of his father's Santo Domingo Group after tthe 87-year-old Julio Mario Santo Domingo Pumarejo died in October 2011. It is a role for which Alejandro, a managing director at Quadrant Capital Advisors, a New York-based investment advisory firm, has been groomed for many years.

He currently serves on the Board of Directors of Colombia's Endeavor, an international non-profit development organization that finds and supports high-impact entrepreneurs in emerging markets and is member of the Latin America Conservation Council of The Nature Conservancy.