Welcome to Third Party Transformers Wiki!
Transformers prides itself with being as cool as it is ridiculous.' With companies making obscure add on kits for add on kits for the transformers' cool and ridiculous things, the amount of third party toys seems to stretch to infinity.
Nonetheless, With the growing market for these items, along with the insane number of convuluted backstories used for some of them, it seems simple enough that someone would keep track of it all.
Here you may find information about unofficial add-ons, and original figures in the transformers likeness made by companies other than Hasbro or TakaraTomy.