Here is a post from another page that put it all together.
To add some missing info on Frank's post, here is Horizon's history as copied from their web site.
1985: The Beginning
Founder, Rick Stephens, along with a handful of his family and industry professionals, opened Horizon Hobby in October of 1985. Their "can do" attitude and exceptional care for the customer quickly make Horizon one of the most popular wholesale RC distributors in North America.
1986: The First Expansion
A second distribution center is opened in Paso Robles, California, allowing Horizon to service retailers west of the Rockies more quickly and efficiently.
1992: Horizon Acquires Exclusive Brands and Begins Development of its Own
Horizon purchases Hobby Dynamics and gains exclusive distribution rights to several premier RC brands. At the same time it begins development of its own RC brands.