| Abbreviation | Definition |
|---|---|
| NBIC | Narragansett Bay Insurance Company |
| NBJ | Nancy Byerly Jones, Consultant |
| NBKS | Nasser Bin Khaled Al Thani & Sons |
| NBL | Namibia Breweries Ltd |
| NBM | National Bank of Merchants |
| NBM | National Business Media |
| NBN | National Broadband Network |
| NBO | National Business Office |
| NBO | National Business Opportunities |
| NBP | National Braille Press |
| NBPA | Newtown Business and Professional Association |
| NBPC | New Brunswick Power Company |
| NBPOL | New Britain Palm Oil Ltd |
| NBRA | Newtown Borough Retailers Association |
| NBRI | National Business Research Institute |
| NBS | Nederland Binnenlandse Strijdkrachten |
| NBSC | New Brazilian Spirits Company |
| NBSC | New Brunswick Science Company |
| NBSI | NAMCO BANDAI Studios Inc |
| NBTC | Nasser Al Baddah Trading Corporation |