- Capolino Packing Corp.1
- Carlini Canning Co.1
- Carthage Canning Co.1
- Cedar Lake Canning Co., Inc.1
- Cedar Lake Canning Co., Inc. and Arthur C. Mead, Jr.1
- Charles Amos Shuttleworth, trading as Salamonie Packing Co.1
- Charles Chesman, New York, N. Y.1
- Charles Clamme and Albert Clamme, copartners, doing business as Clamme Canning Company1
- Charles Goodman1
- Charles J. Clamme, Sr., and Albert Clamme, trading as the Clamme Canning Co.1
- Chester Packing Co.1
- Christensen Products Co.1
- Clement Pappas & Co.1
- Clement Pappas and Co.1
- Colo Flavor Products Co., Inc.1
- Colorado Marketing Company1
- Colorado Packing Plant1
- Columbia Conserve Co., Inc.1
- Comly-Flanigen (brokers)1
- Crampton Canneries1