He is the founder of SALTS, a non-profit exhibition space based in Switzerland, dedicated to promoting interdisciplinary exchange and fostering dialogue with emerging artists. He is currently working on the third and final instalment of the Art in Public Space Project with Globus, in collaboration with the Fondation Beyeler. He was recently the curator of Art Basel’s Messeplatz Project and from 2016 to 2023, he served as the curator of Art Basel’s Parcours sector, which showcased site-specific installations, sculptures, interventions, and performances in public spaces across Basel. Leuenberger is a mentor at the Institute Kunst Gender Nature (HGK) in Basel and a jury member of La Becque Artist Residency. Recently, he was appointed curator of the 2026, 10th Biennale Gherdeina in South Tyrol and Plataforma’s 2026–27 exhibition cycle in Guadalajara.