Barbara Höhle is a professor of psycholinguistics specializing in language acquisition. She initiated the project in Potsdam together with Prof. Dr. Matthias Bräutigam, who is the founder of the club Sprachpaten für Kita-Kinder e.V. in Berlin.
https://www.uni-potsdam.de/de/ling/professuren/professur-fuer-psycholinguistik-mit-dem-schwerpunkt-spracherwerb