Here you can find the right products for your towing needs at the right price. Horton Vans, Inc Find inside some of the many features you can add to your Horton Hauler, or browse the Horton page for information on the basic models. Horton Hauler Cargo Trailers Founded 30 years ago in Eatonton, Georgia, Horton Vans, Inc. Carry-On Trailer Corp Find inside a wide variety of enclosed cargo trailers. Browse the Carry-On page for information on the basic models. American Trailer Systems is a proud member of and in full compliance with the National Association for Trailer Manufacturers.