| Rockmont Capital Partners Ltd | Colorado |
| Rockport Capital Partners | Massachusetts |
| Rockport Venture Securities, LLC | New Jersey |
| Rockquett Websites, LLC | |
| Rocks Biological Consulting | California |
| Rocksauce Studios | Texas |
| Rockset | California |
| Rocksolidnet | Indiana |
| Rockstar Design | Wisconsin |
| Rockstar Games | New York |
| Rockstreet Software | California |
| RockTeam | Delaware |
| Rocktech | |
| Rockton Software, Inc. | Colorado |
| RockWare, Inc. | Colorado |
| Rockwell Automation | Wisconsin |
| Rockwell Medical, Inc. | Michigan |
| Rockwell Venture Capital | Pennsylvania |
| Rockwood Capital | California |
| Rocky Mountain Biological Laboratory | |
| Rocky Mountain Biologicals, LLC | Montana |
| Rocky Mountain College Mathematics | Montana |
| Rocky Mountain College of Art + Design | Colorado |
| Rocky Mountain Computer Specialists, Inc. | Colorado |
| Rocky Mountain Media Services | |
| Rocky Mountain Multimedia, Inc. | Colorado |
| Rocky Mountain Tech | Colorado |
| Rocky Mountain Tracking, Inc. | Colorado |
| Rocky Mountain Venture Capital Association | Colorado |
| Rocky Road, Inc. | New York |
| Rocky Vista University | Colorado |
| Rocstor | California |
| RODA Marketing | |
| Rodc Tech, LLC | |
| Rodgers Almer | |
| Rodli Web Strategies | Montana |
| Rodon Products, Inc. | California |
| Roe Graphics | Tennessee |
| Roebuck Technologies | Florida |
| Roeing IT Solutions | Indiana |
| ROF.NET | Colorado |
| Rofo | California |
| Roger West Creative & Code | Florida |
| Roger Williams University | Rhode Island |
| Roger's Computer Service, Inc. | South Carolina |
| Rogers Advertising, LLC | |
| Rogers Project | Colorado |
| Rogii, Inc. | Texas |
| Rogomi, Inc. | |
| Rogue Amoeba Software, Inc. | Massachusetts |