The suit was filed in a North Carolina court charging JBS, Cargill, Tyson, Swift and National Beef.
The lawsuit cited an ongoing investigation by the U.S. Department of Justice into possible price-fixing in the meat industry.
In October a group of food-distribution companies filed a similar lawsuit against the same companies.
And in September a judge in Colorado said major meat-packing companies will have to face charges of conspiring over workers’ wages.
