| Abbreviation | Definition |
|---|---|
| RNI | Radical Networks, Inc. |
| RNI | Renaissance Networking, Inc. |
| RNI | Research Network Incorporated |
| RNI | Ricochet Networks, Inc. |
| RNI | Roswell Neglected, Incorporated |
| RNK | ROSENBERG, NEUWIRTH, & KUCHNER |
| RNL | Roll-N-Lock Corporation |
| RNLIC | Reliance Nippon Life Insurance Company |
| RNM | Rave New Media |
| RNM | Ruidoso New Mexico, Inc. |
| RNPO | Renault-Nissan Purchasing Organization |
| RNR | Rent 'N Roam |
| RNR | Rindsberg N Reilly |
| RNR | Russ and Rainbow |
| RNRC | Russian National Reinsurance Company |
| RNT | Recruiting New Teachers, Inc. |
| RNT | Rightnow Technologies |
| RNTC | Resource Network Trading Company |
| RNTH | Renault N1ssan Toyota Honda |
| RNTH | Renault Nissan Toyota Honda |