- Albert W. Sisk & Son1
- Alberta Cooperative Creamery Association1
- Alberty Food Laboratories1
- Alex H. Altshuler, trading as the Seldale Drug, St. Paul, Minn.1
- Alfred Anderson, trading as the Anderson Creamery Co.2
- Alfred Jones Sons1
- Alliance Distributors, Inc.1
- Alma Dairy Products Association1
- Almora Cooperative Cheese Factory1
- Alonzo O. Bliss Medical Co., Washington, D. C.1
- Alphonse LaKochelle, trading as the Stone Ridge Turkey Farm, Crookston, Minn.1
- Altura Rex Turkeys, Inc.1
- Amenia Seed & Grain Co.2
- American Agricultural Chemical Co.1
- American Fruit & Produce Co.1
- American Maize Products Co.1
- American Packing Corporation1
- American Stores Co., Inc., trading as the Lakeville Creamery Co.1
- Aneta Creamery & Produce Co.1
- Anne M. Jenks, W. S. Jenks, and C. H. Jenks1
