- Graduated from Ecole Nationale d’Administration and Institut d’Etudes Politiques de Paris
- Started his career in 2003 at the Directorate General of the Treasury within the Ministry for the Economy and Finance
- From 2007 to 2009, he was financial services adviser at the French Permanent Representation to the European Union (Brussels)
- He then returned to the Directorate General of the Treasury as head of the banking unit before becoming deputy director for Banks and General Interest Financing
- Between 2012 and 2016, Antoine Saintoyant was also Director of Holdings at Agence des participations de l’Etat (Agency for State Holdings} in charge of services (Orange, La Poste, Bpifrance, FDJ, etc.)
- From May 2017 to July 2020, Antoine Saintoyant was adviser and head of the Economy, Finance and Industry unit in the cabinet of Prime Minister Edouard Philippe
- Director of Strategic Investments at Caisse des Dépôts (2020-2023), member of the Caisse des Dépôts Group Executive Committee.
- Director of Strategic Investments, in charge of the Vision Groupe project since January 20, 2023, member of the Caisse des Dépôts Group Executive Committee.
- Director of Strategic Investments, Interim Director of Banque des Territoires (2024 - 2025), member of the Caisse des Dépôts Group Executive Committee.
- Deputy CEO, Director of Banque des Territoires since June 19, 2025, member of the Caisse des Dépôts Group Executive Committee.

Antoine Saintoyant
Deputy Chief Executive Officer, Director of Banque des Territoires, Group vision leader