- C. W. Derr Co., Inc.1
- Cagle's, Inc.1
- California Almond Growers Exchange, Sacramento, Calif.1
- Canadian Fish Producers, Ltd.1
- Candymasters Co.1
- Capital Milk Products Co.2
- Cargill, Inc.2
- Carnation Co.1
- Carrington Grain Co.1
- Central Co-operative Wholesale1
- Central Popcorn Co.2
- Central Warehouse Co.1
- Charles Grant1
- Chester Creamery Co.1
- Chicago, Milwaukee, St. Paul & Pacific Railroad Co.1
- Chicago, St. Paul, Minneapolis & Omaha Railway Co.1
- Chippewa Canning Co., Inc. and American Farms Cooperative, Inc.1
- Chun King Corp.1
- Chun King Sales, Inc.5
- Clark County Farmers Elevator Co.1