Institution
- R. Pariser & Co., Inc. 1
- RLR Industries, Inc.1
- RTI International1
- Radio Receptor1
- Rand Corporation1
- Raphael Katzen Associates International, Inc.1
- Raphael Katzen, P.E.1
- Raychem Corporation1
- Raytheon Engineers and Constructors 1
- Reconstruction Finance Corporation1
- Reconstruction Finance Corporation. Office of Rubber Reserve1
- Reed College1
- Reilly Township Public School1
- Remington Rand Univac1
- Republic Geothermal, Inc.1
- Research Institute for the Organic Chemical Industry1
- Research Management Corporation1
- Research Services Corporation1
- Research Triangle Institute1
- Research-Cottrell, inc.1