Other ensembles:

Creaorchestra (cello)
Aesthetic Meat Front (cello)
Purple piano quartett (cello)
Das Komplott (keyboards, cello)

Used to:
Laurens-heeft-blijkbaar-wel-genoeg-sextet (bass)
Was will das Weib (cello, electronics and vocals with MUF aka Wouter de Vries on piano, guitar, electronics and vocals)
Kunst School Dag Orchestra (cello)
S & EM quartett (cello)
Ergane quartett (cello)
DSMG Krashna Musika (bass in the choir)
Kaasquartett (cello)
Studenten Koor Amsterdam (bass)
Izzi's band (cello and vocals, with Marcus on guitar, bass and vocals, Melissa on bass, guitar and vocals, Eric on drums)
Streichfein Quartett (cello)

Short projects and collaborations:
JAM with Budapest delight (cello + effects, with Annet Kulcar aka DJ Ms. Syche)
Newcomer jams
Zegg jams
Performances on cello at Wasteland, Fetish cabaret, Madison Young soirée, Ball du masque, AMF rituals, bmxnet event.
And much more