Most producers run cow-calf operations and sell their weaned calves. There are also producers specializing in breeding stock. Buying weaned bull calves and finishing to processing is another segment. Some people raise bison from birth through processing, and then market the meat themselves. There are hundred of plants around the country approved for USDA inspection of bison.
Companies exist who buy finished animals and then market the meat.
Bison auctions are located all across the country for selling or buying bison.