Graduated Cum Laude in Finance and Political Science from Boston College and holds an MBA from Columbia University in New York City.
Her career began at GTE Corporation (Verizon) in the United States as a financial executive, later joining the consulting firm Booz, Allen & Hamilton as a strategy consultant for leading multinationals in Mexico, United Kingdom, Spain and Portugal.
She has been CEO of 3i in Spain, where she developed extensive experience in the international private equity sector, leading many investments and divestments, and participating in the recruitment process of institutional investors for global funds promoted by 3i. He has also led numerous refinancing operations, IPOs and has wide-ranging experience on boards of directors of several companies, both listed and non-listed.
Between 2014 and January 2017 Ms. Ballester provided services to EY as external advisor of the Transaction Services (TAS) division to support the positioning of the firm in private equity services. She is currently the founder and managing partner of the private equity fund Nexxus Iberia I.
Ms. Ballester was also President of the Spanish Association Capital Risk Entities (ASCRI) and is currently a Director of Prisa Radio, S.A. Member of the “Circulo de Empresarios”, the Institute of Counselors and Administrators (ICA), the Women Corporate Directors (WCD), Member of the International Women's Forum (IWF) and frequently participates as a speaker at business schools and professional associations.
Ms. Ballester was appointed Board Member at Repsol by resolution of the Annual General Meeting held on May 19th, 2017.