Hörnberg's focus is on change management and creative disruption. He manages and coordinates a small team of experts from various fields. Hörnberg provides oversight and leadership for GRP’s work on developing, improving, and scaling initiatives by the GRP challenge winners as well as external initiatives and ideas.
He is the co-founder of a few businesses. He has held various positions in the development sector and private sector and has been an adviser and consultant to a wide range of organisations and companies. Hörnberg holds an MBA from the International Institute for Management Development (IMD), Lausanne.