Publicity
The sponsoring company may have their logo in various places:

Rider	Embroidery on shirt Embroidery on show jacket Embroidery on caps in the company's colour Embroidery on rain coats / wests / winter coats
Horse	Embroidery on saddle cloth Embroidery on various rugs
Truck	Stickers on the large truck (9 horses)
Boxes	Logo on small cloth banners hanging from the show box

Communication

(Free) Regional Newspapers & Magazines	Write ups about the team's results, always including the name of the sponsor. Photographs of the riders with the name of the sponsor.
(Paid) National Horse Magazines	Write ups about the team, including photographs with the sponsoring logo. Interviews with the Director of the sponsoring company.