Initially self-taught on the instrument, he later followed master classes with John Clayton, Ricardo Delfra, Hein Van De Geyn and Joe Lovano. Since 2003 he has been the leader of a septet for which he composes and arranges music: Chris Mentens Jazz Van. He also plays and writes for the Multitude collective, a quartet where his rock past occasionally rears its head and where the double bass produces effects and loop stations.
He played alongside Chris Joris for fourteen years, at various festivals both in Belgium and abroad. He can also be heard as composer and bass player on various albums. He has worked with the likes of Bob Stewart, Mal Waldron, Deborah Brown, Gordon Brisker, Hod o’Brien, Al De Fino, Slide Hampton, Gene Connors, Baba Sissoko, Sylvia Droste, Judy Niemack, and gone on various European tours as well as played California gigs with Los Angeles vibraphonist Eldad Tarmu’s eponymous Jazz Ensemble.