Santiago Argelich Hesse, CEO, Telefónica

Aminata Ndiaye Niang, CEO, Orange Madagascar

JOB FROM: CHIEF EXECUTIVE OFFICER, CELLNEX POLAND

JOB TO: CHIEF EXECUTIVE OFFICER, TELEFÓNICA DEUTSCHLAND

Santiago Argelich Hesse will become CEO of Telefónica Deutschland in January 2026, succeeding Markus Haas. As the former CEO of Cellnex Poland, he led the company to dominate Poland’ s infrastructure market. Trained as an engineer in Barcelona, he brings extensive multinational experience in the telecommunications and digital sectors.

JOB FROM: DEPUTY CEO OF SONATEL GROUP & ZONE DIRECTOR, ORANGE MIDDLE EAST AND AFRICA( OMEA)

JOB TO: CHIEF EXECUTIVE OFFICER, ORANGE MADAGASCAR

A strategic leader within the Orange Group, Aminata Ndiaye Niang was previously Deputy CEO of Sonatel, OMEA’ s highgrowth West Africa division. An engineer by training, she has deep experience in marketing, digital services and Orange Money and is now tasked with driving digital inclusion in Madagascar.

18 December 2025