Borgmann began his career in the early 1980s, working mainly with the Berlin Art Ensemble around Nick Steinhaus (participating in the 1981 Tour Southamerica for the Goethe-Institut, and the 1982 Nickelsdorfer Konfrontationen). He went on to the Sirone Sextet in New York (1987); the Hidden Quartet (with Dietmar Diesner, Erik Balke, and Jonas Akerblom); and Noise & Toys (with Valery Dudkin, Sascha Kondraschkin). In 1991, Borgmann founded the Orkestra Kith’N Kin (with Hans Reichel, John Tchicai, Pat Thomas, Jay Oliver, Mark Sanders, Lol Coxhill and others). Later he toured with his Quartet Ruf der Heimat (founded in 1993 with Ernst-Ludwig Petrowsky, Peter Brötzmann, Willi Kellers, Christoph Winckel), and with the Trio Blue Zoo (with Borah Bergman and Brötzmann). Starting in 1984, and continuing until 1996, he organized the festival STAKKATO in Berlin.