- Remington Arms Company1
- Republic Metalware Company1
- Reynolds Metals Company1
- Richard Hellmann, Inc.1
- Richland Library, Columbia, S.C.16,927
- Richland Library, Columbia, S.C.
11
- Richland Library, Columbia, S.C. 4
- Richland Library, Columbia, S.C.; Richland Library, Columbia, S.C.3
- Robertshaw Thermostat Company2
- Royal Baking Powder Co.1
- Royal Baking Powder Co., New York1
- Royal Baking Powder, New York1
- Royal Baking Powder, Standard Brands Inc1
- Royal Baking Powder, Standare Brands Inc.1
- Rumford Chemical Works, Providence, Rhode Island1
- Rumford Company, Rumford, Rhode Island1
- Rutherford Food Corporation2
- Schmidt's1
- Sealtest3
- Sears Roebuck and Co.1