| R1 RCM, Inc. | |
| R1Soft | Texas |
| R2 Consulting | |
| R2 Logistics | Texas |
| R2integrated | California |
| R2M Pharma, Inc. | |
| R2R Marketing | |
| R3 | New York |
| R3 Vascular, Inc. | California |
| R4 Robotics | Michigan |
| r4 Technologies, Inc. | Connecticut |
| R6S | Nevada |
| R7 Solutions | Texas |
| R:BASE Technologies, Inc. | Pennsylvania |
| RA Capital Advisors, LLC | California |
| RA Capital Management, L.P. | |
| Ra-comm, Inc. | Indiana |
| Raaft, LLC | |
| Raange, Inc. | |
| Rabbet | Texas |
| Rabbit Clone Web | California |
| RabbitHole | |
| Rabbitsoft | Arizona |
| RAC Solutions, Inc. | Maryland |
| Racccoon, LLC | |
| Raccoon Gang | |
| RaccoonCare | New York |
| Race Capital | California |
| Rachio, Inc. | Colorado |
| Racine Web Design | California |
| Rack 911 | California |
| rackAID, LLC | Florida |
| Racked Hosting | Wisconsin |
| Rackhouse Venture Capital | |
| Rackmount PDU | North Carolina |
| RackmountMart.com | California |
| RackmountNet | California |
| RackMountPro | California |
| RackN | Texas |
| Rackspace Technology | Texas |
| RackTop Systems, Inc. | Maryland |
| RackWare, Inc. | California |
| Rackwise | California |
| RACOM | Iowa |
| Racore Technology Corporation | Utah |
| Rad AI | |
| Rad Campaign | District of Columbia |
| RAD Game Tools | Washington |
| RAD Intel | California |
| Rad Power Bikes, Inc. | |