IBP, Inc. Tyson Fresh Meats, Inc., formerly IBP, Inc. and Iowa Beef Processors, Inc., is an American meat packing company based in Dakota Dunes, South Dakota, United States. IBP was the United States' biggest beef packer and its number two pork processor. To reflect the company's multiple operations, the company changed its name to Iowa Beef Processors, Inc. in 1970. After the company expanded operations to pork and other areas, Iowa Beef Processors, Inc., became IBP, Inc. Occidental Petroleum owned IBP from 1981 to 1987, and was the majority owner from 1987 to 1991.