| Abbreviation | Definition |
|---|---|
| NVTA | Noventa |
| NVTK | Novatek Regs |
| NWF | NWF Group P.L.C. Ordinary shares |
| NWF | Nwf Grp. |
| NWG | Northumbn.wtr |
| NWIG | Northwest Inv |
| NWKI | Networkers |
| NWR | New World Res A |
| NWRN | New World Nv |
| NWS | Smiths News |
| NWT | Newmark Security, P.L.C. |
| NXR | Norcros |
| NXS | Nexus Man |
| NYO | Nyota Minerals |
| OAH | Oak Hldgs |
| OAP1 | Octopus App.1 |
| OAP2 | Octopus App.2 |
| OAP3 | Octopus Ap 3 |
| OAP4 | Octopus Ap 4 |
| OBP | Ondine Biomed |