| Abbreviation | Definition |
|---|---|
| NAVI | Navisite, Inc. |
| NAVR | Navarre Corporation |
| NAXOF | Naxos Resources, LTD. |
| NBAK | National Bancorp of Alaska, Inc. |
| NBAN | North Bay Bancorp |
| NBCFO | Nations Bank, N. A. of South Carolina |
| NBCI | N B C Internet, Inc. |
| NBCOD | Nabco, Inc. |
| NBCP | North Bancorp (formerly Niagara Bancorp, Inc.) |
| NBET | NetBet, Inc. |
| NBII | N B I, Inc. |
| NBIX | Neurocrine Biosciences |
| NBMX | National Boston Medical, Inc. |
| NBOC | Northern Bank of Commerce |
| NBOH | National Bancshares Corporation of Ohio |
| NBRG | Newbridge Capital, Inc. |
| NBSC | New Brunswick Science Company, Inc. |
| NBSI | North Bancshares, Inc. |
| NBTB | N B T Bancorp, Inc. |
| NBTY | N B T Y, Inc. |