Since 1984 Bison Coach has been a leading manufacturer of horse trailers. In 2003 the decision was made to add the Living Quarter conversion process to the Bison operation. The company and the product then became a "One Stop Shop" operation where all aspects of the manufacturing process were completed at the same facility. Today, Bison Coach is the nationâs largest manufacturer of horse trailers with living quarters, offering both steel and aluminum framed construction. Our 7 product lines and the many configurations and options available offer you the most diverse line of living quarter horse trailers. From basic and lightweight to large and luxurious, weâve got the trailer for you at the most affordable price!