X-OR started in 1990 by
Gert-Jan Prins and
Luc Houtkamp but since 2001 is run by
Luc Houtkamp and
Wiek Hijmans.
As a metaphor for the record label's policy, the term X-OR stands for the choice of clear and radical, uncompromising music. In this policy, the emphasis is on improvised and electronic music, although contemporary music and rock are also included.