| Ranger Communications, Inc. | California |
| Rani Therapeutics | |
| Rank Above Others, Inc. | |
| Rank Lift Digital Marketing Agency | |
| Rank Magic, LLC | New Jersey |
| Rank On Top | |
| Rank One Computing | Colorado |
| Rank Ranger, LLC | |
| Rank Signals | |
| Rank Smart Search Marketing | Texas |
| Ranken Technical College | Missouri |
| RankFuse Interactive | Kansas |
| Ranking Carolina | |
| Rankpay, LLC | California |
| RankRabbit, LLC | California |
| RankScience | California |
| RankSense, Inc. | Illinois |
| rankSolutions | Louisiana |
| RankTank | New York |
| Ranolia Ventures, LLC | |
| Rantec Microwave Systems, Inc. | California |
| Rantec Power Systems, Inc. | California |
| Raosoft | Washington |
| RapaFusyn Pharmaceuticals | |
| Raph Levien | |
| Rapicom, Inc. | Alabama |
| Rapid API | California |
| Rapid City Medical Center, LLP | |
| Rapid Claims AI | New York |
| Rapid Controls | South Dakota |
| Rapid Developers, LLC | |
| Rapid Dose Therapeutics, Inc. | |
| Rapid Imaging Software, Inc. | Wisconsin |
| Rapid Innovation | Idaho |
| RaPID Medical Technologies, LLC | |
| Rapid Micro Biosystems, Inc. | Massachusetts |
| Rapid Networks | Colorado |
| Rapid POS | California |
| Rapid Repair | Kentucky |
| Rapid Robotics, Inc. | California |
| Rapid Software Corporation | Texas |
| Rapid Systems, Inc. | Florida |
| Rapid Tech Services, LLC | Wyoming |
| Rapid Technologies | Colorado |
| Rapid7 | Massachusetts |
| RapidAI | California |
| RapidCanvas | Texas |
| RapidDeploy, Inc. | Texas |
| RapidDevelopment Group | |
| RapidFort | |