Canadian Broadcasting Corporation | Australian Broadcasting Corporation | Oracle Corporation | International Finance Corporation | Chevron Corporation | Digital Equipment Corporation | News Corporation | Lockheed Corporation | Dawson's Creek | corporation | Battle Creek, Michigan | Hearst Corporation | Scholastic Corporation | Northrop Corporation | Munhwa Broadcasting Corporation | Gibson Guitar Corporation | CBS Corporation | Fender Musical Instruments Corporation | ITT Corporation | Sharp Corporation | RAND Corporation | NCR Corporation | Federal Deposit Insurance Corporation | Sperry Corporation | Singer Corporation | Case Corporation | Science Applications International Corporation | Polaroid Corporation | Multinational corporation | Burroughs Corporation |
Polk County is the headquarters of Publix Supermarkets, a regional grocery chain and Polk's top private employer, as well as W. S. Badcock Corporation, Watkins Motor Lines, Saddle Creek Corporation, and The Mosaic Company.