Magic Attic Club
Marklin
Mary Kaye Music
Mary Lambert Productions
Mason Corporation
Master Communications
MatchBox Toys
Mayte Mouse Productions
Mega Bloks
Metanon Games
MGA Entertainment
Mic-O-Mic Americas
Microsoft
Miles the Goose (Banyan Entertainment)
MindPlay
Moonjar
Mr. McGroovy's
Munchkin
My Baby and Me Exercise
MyStorySong.com