Why not try ADP handling?
Not sure they do private/business aircraft handling though...but at least they may provide information.
SERVICE COMMERCIAL ESCALE
B.P. 20101
95711 ROISSY CHARLES DE GAULLE CEDEX
Tél. (33)(0)1 48 16 37 70
Fax. (33)(0)1 48 16 37 71
SITA : PARKSXH
24 hrs calls for handling: ROISSY (33)(0)1 48 62 12 45 (CDG1,CDG2 et T3)
FLEXJET