Aon plc announced that Jose Antonio Álvarez, former CEO of Santander, has been appointed to its Board of Directors, effective January 25, 2024. Álvarez served as Group CEO of Santander from 2015 to 2022 and currently serves as a non-executive director and vice chair of Santander's Board of Directors, where he sits on the executive and innovation & technology committees. He joined Santander in 2002 and served as senior executive vice president and chief financial officer from 2004 to 2014, before being appointed group CEO.

He also served as director at SAM Investments Holdings Limited, Santander Consumer Finance, S.A. and Santander Holdings USA Inc., sat on the supervisory boards of Santander Consumer Bank AG, Santander Consumer Holding GmbH and Santander Bank Polska, S.A. and was a board member of Bolsas y Mercados Españoles, S.A. Álvarez also currently serves as a non-executive vice chair at Banco Santander (Brasil) S.A., a non-executive director at PagoNxt, S.L. and a member of the advisory committee of Grupo GED.