Plan 9 (distributed OS developed at Bell Labs, based on Unix design principles but not functionally identical) Inferno (distributed OS derived from Plan 9, originally from Bell Labs) Plan B (distributed OS derived from Plan 9 and Off++ microkernel) SAN-OS by Cisco (now NX-OS) TurboDOS (Software 2000, Inc.)
OliOS Plan 9 ((dezvoltat în Bell Labs nu se bazează pe principiile de proiectare Unix, dar punct de vedere funcțional este identică))) Inferno (distributed OS derived from Plan 9, originally from Bell Labs) Plan B (distributed OS derived from Plan 9 and Off++ microkernel) TurboDOS (Software 2000, Inc.)