Schematic
Planet Mu
MEGO
Rephlex
Total (the label that put out indie compilations called Volume, and dance compilations called Trance Europe Express)
Deviant (the Total Record Company renamed, put out The Orb remix albums and other dance compilations)
(a label that is just named 'or')
n5MD
I had to include the last two, because they released some music just on MiniDisc, forcing you to buy a MiniDisc player.