| Race Oncology |
| Race Oncology Ltd |
| RAD BioMed Accelerator |
| RadioMedix, Inc. |
| Radiomics |
| Radionetics Oncology |
| Radius Health, Inc. |
| Radix Labs |
| Radyus Research |
| RaeSedo |
| Rain Oncology |
| Rakuten Medical |
| Rally Health, Inc. |
| Rallybio |
| RAN biotechnologies |
| Rancho BioSciences |
| Range Biotechnologies |
| Rapid Medical |
| Rapid Micro Biosystems, Inc. |
| RapidPulse, Inc. |
| Raptamer Discovery Group |
| RareCyte, Inc. |
| Rational Vaccines |
| Ravata Solutions |
| Ravgen |
| RayBiotech Life, Inc. |
| Raybow USA, Inc. |
| Raydiant Oximetry, Inc. |
| RBC Medical Innovations |
| RD-Biotech |
| Reaction Biology |
| Reactive Biosciences |
| Real Time Analyzers |
| Real Time Genomics |
| RealBio Technology |
| RealSeq Biosciences, Inc. |
| ReAlta Life Sciences, Inc. |
| Rebiotix, Inc. |
| Rebus Biosystems, Inc. |
| Recbio Technology |
| Receptor Life Sciences |
| Recognify Life Sciences, Inc. |
| Recombia Biosciences |
| Recombinant Technologies, LLC |
| Recombinetics |
| ReCor Medical, Inc. |
| Redesign Science |
| RedShift BioAnalytics, Inc. |
| RefleXion Medical |
| RegCell Co., Ltd |