- R & S Automotive
- R & S Construction
- R & S Enterprises
- R & S Supply
- R & S Trucking
- R & W Auto Sales
- R B Electric
- R Bar
- R C Auto Sales
- R C Construction
- R C Electric
- R C Enterprises
- R G Construction
- R H Construction
- R J Construction
- R P Lumber CO
- R Place
- R R Donnelley & Sons
- R&R
- Raben Tire
- RAC Transport
- Race for the Cure
- Racer's Edge
- RaceTrac
- Raceway
- Rack
- Rack Room Shoes
- RACO
- Radian Guaranty
- Radiance
- Radiant Research
- Radiation Oncology Associates
- Radiator King
- Radiator Shop
- Radio Disney
- Radio One
- Radio Shack Authorized Sales Center
- Radiological Associates of Sacramento MDCL GRP
- Radiology Consultants