- Adolph Peter Erickson, trading as Progress Creamery, Vancouver, Wash.1
- Adrian Co-operative Creamery, Adrian, Minn.1
- Adrian Cooperative Creamery2
- Aiken Schwartz Co.1
- Aiken-Schwartz Co.1
- Ainsworth Farmers Cooperative Creamery Co.2
- Akron Creamery Co.1
- Albany Creamery Association2
- Albert C. Hepworth, trading as Boundary Creamery1
- Albert City Cooperative Creamery1
- Albert City Cooperative Creamery Association1
- Albert F. Lopez, New York, N. Y.2
- Albert M. Feiner, trading as Ethan Dairy Products, Ethan, S. Dak.1
- Albert Mitchell, trading as Aneta Creamery & Produce Co.1
- Alberta Cooperative Creamery Association1
- Alberta Creamery & Produce Co.1
- Albin Creamery Co.1
- Albion French Lake Creamery Association1
- Alex Grossman & Co. (Inc.)1
- Alex Grossmann & Co. (Inc.), as agent for the Southern Dairies (Inc.)1