Zwerm was founded in 2007 and has collaborated with many artists including Fred Frith, Mauro Pawlowski, Larry Polansky, Eric Thielemans, Yannis Kyriakides, François Sarhan, Mark Vanrunxt, Sheila Anaraki, Etienne Guilloteau, Stefan Prins and Serge Verstockt.

Zwerm is Toon Callier, Johannes Westendorp, Bruno Nelissen and Kobe van Cauwenberghe.