Here is a list of who is making what today for tractors.
MTD (Modern Tool & Die) makes the following.
Cub Cadet, TroyBilt, Bolens, YardMan, YardMachines, Certain Craftsman, Toro.
Husqvarna makes: Husqvarna, Certain Craftsman, Poulan, Ariens.
Toro makes Toro , Exmark Zero turns.
Husqvarna...