- Carlay Co.1
- Carr Consolidated Biscuit Co.1
- Cen-Tex Cooperative Oil Mill1
- Center Point Canning Co.1
- Chambersburg Baking Co.1
- Charles A. Shuttleworth, trading as the Salamonie Packing Co.1
- Charles Goodman1
- Charles Scheuerman, Cincinnati, Ohio.1
- Chase Candy Co.1
- Chattanooga Bakery, Inc.1
- Clark-Babbitt Pharmaceutical Labs., Inc., from Boston, Mass.1
- Claude S. Woody, trading as the Woody Candy Co., Oklahoma City, Okla.1
- Clyde Arnold1
- Coca-Cola Bottling Co.1
- Cocilana, Inc.1
- Colo-Flavor Products Co.1
- Colorado Mountain Foods Co.1
- Columbia Cheese Co., Inc.1
- Columbia River Salmon Co., Inc.1
- Consolidated Dairies of Lake County, Inc.1