Industry
| site link | phone | |
| National Aluminium Products Company | careers@napcooman.com | 24446453 |
| National Cans & Packing Industry | ncpi786@omantel.net.om | 24446650 |
| National Electrical Industries Co. L.L.C | 24454951 | |
| National Mineral Water Company | 0 | |
| National Pharmaceutical Industries | npico@omantel.net.om | 24449070 |
| National Plastic Factory | info@nationalplasticoman.com | 24811689 |
| North West Engineering | 0 | |
| Nuhas Oman | info@nuhasoman.com | 24449007 |
| OMAN ABRASIVES | 0 | |
| Oman Cables Industry | omancables@omancables.com | 24446464 |