Theres a few more(smaller ones though):
Mattel with Intellivision - 3m
Coleco with Colecovision - 6m
NEC Corporation/Hudson with TurboGrafx-16/TurboExpress - 10m/1.5m
SNK with Neo Geo/Neo Geo CD/Neo Geo Pocket(Color) - ?/?/2m
Panasonic, Sanyo and GoldStar had 3DO Interactive Multiplayer - 2m
At least NEC deserves to be there , it sold more than 10m. :D







