- Quality Press, Milwaukee1
- R. T. French Company1
- R. U. Delapenha & Co., Inc.1
- Rath's Black Hawk1
- Rawleigh1
- Remington Arms Company1
- Republic Metalware Company1
- Reynolds Metals Company1
- Richard Hellmann, Inc.1
- Richland County Public Library1
- Richmond-Chase Company1
- Royal Baking Powder Co.1
- Royal Baking Powder Co., New York1
- Royal Baking Powder Company1
- Royal Baking Powder, New York1
- Royal Baking Powder, Standard Brands Inc1
- Royal Baking Powder, Standare Brands Inc.1
- Rumford Chemical Works1
- Rumford Chemical Works, Providence, Rhode Island1
- Rumford Company, Rumford, Rhode Island1