Hobbico is a HUGE company, and they own many companies. Here are some of the ones that I can remember right off of the top of my head (I'm sure I'll miss some):

Hobbico
Tower Hobbies
Omni Hobbies
Great Planes
Dynaflight
OS engines
Top Flite
Super Tigre
Futaba

It's pretty hard to participate in this hobby and avoid Hobbico.

Ken