Completed in 1999, this 44,000-square-foot building on 5.07 acres is located in Warren. Legendary linebacker Roger Zatkoff, who played for the University of Michigan, the Green Bay Packers and the Detroit Lions, founded the company in 1959 in his basement. Zatkoff Seals is now the largest privately held seals and packing company in North America. This facility serves as their main warehouse, with distribution centers in Michigan, Ohio and Indiana to service their customers worldwide.