- California Raisin Co.1
- California Sea Food Co.1
- Cape Ann Fisheries, Inc.1
- Carolina Chemical Co.1
- Chain of Lakes Duck Farm (E. Albert Singer)1
- Chamberlain Canning Co.1
- Chapin and Adams Corporation1
- Charles Peterson, trading as the Original Wonder Bakers1
- Charles R. Allen1
- Charles R. Allen Warehouse1
- Cherokee Creamery, Inc.1
- Chesebro, Robbins & Graham, Inc.1
- Clarksville Cooperative Canning Association1
- Coffee Corporation of America1
- Collins Flour Mills1
- Commonwealth Brewing Corporation, from Springfield, Mass., and by the Tru Blu Co., from Norfolk, Va.1
- Consolidated Biscuit Co.1
- Consolidated Nut Co.1
- Cresent Seafood Sales Co., Inc.1
- Crispo Cake Cone Co.1
