Consolidated as one of the most extraordinary conductors of contemporary music in the world, he has worked with top-level composers such as J. Adams, K. Saariaho, H. Birtwistle, U. Chin, H. Lachenmann, M. Lindberg and GF Haas. He has also performed at festivals such as the BBC Proms, Wien Modern, Darmstadt and Mostly Mozart at the Lincoln Center. He is main conductor of the Porto Symphony Orchestra at the Casa da Música and principal conductor of the Basel Sinfonietta.
In recent seasons, he has conducted the Seoul, Oslo, Stockholm, Bergen and Luxembourg Philharmonic Orchestras, as well as the WDR Symphony, the Aurora and Munich Chamber orchestras, among others. In the last season he highlights his return to the Frankfurt Radio Symphony Orchestra and the Vienna Radio Symphony Orchestra at Musikverein. He regularly collaborates with contemporary music ensembles around the world, such as the Klangforum Wien and the Ensemble InterContemporain.
In the operatic field, Brönnimann has directed Le Grand Macabre , by Ligeti, at the British National Opera, the Berlin Comic Opera and the Teatro Colón (Buenos Aires) in both La Fura dels Baus and Barrie Kosky; Death of Klinghoffer , by John Adams, at the British National Opera; L’amour de loin , by Kaija Saariaho, at the Bergen Festival and the Norwegian Opera, and An Index of Metals , by Romitelli, with Barbara Hannigan at the Theater an der Wien. He has also directed at the Teatro Colón in Argentina Erwartung (The Waiting), by Schönberg, Hagith, by Szymanowski, i The Little Match Girl , by Helmut Lachenmann, i Die Soldaten (The Soldiers), by Zimmermann.
Between 2011 and 2015, he was artistic director of Norway's leading contemporary music ensemble BIT20 and, from 2008 to 2012, he was musical director of the National Symphony Orchestra of Colombia, in Bogotá.
Born in Switzerland, Brönnimann trained at the City of Basel Music Academy and at the Royal Northern College of Music in Manchester. He currently lives in Madrid.