| Abbreviation | Definition |
|---|---|
| NTL | Nelson, Tyler, and Langer, PLLC |
| NTL | Network Technologies, Limited |
| NTL | New Tel Limited |
| NTL | Newfoundland Transshipment Limited |
| NTL | Newfoundland Transshipment, Limited |
| NTLX | Netluxe, Inc. |
| NTM | National Tool and Manufacturing Company |
| NTM | Northwestern Travel Management |
| NTMI | New Technology Management Inc |
| NTML | NEC Telecom MODUS Ltd |
| NTML | Northern Timber Manufacturing Ltd |
| NTN | National Tenant Network, Inc. |
| NTN | National Truck Network |
| NTNA | Northern Tasmanian Netball Association Inc. |
| NTO | Nuevas Tecnologías Observacionales |
| NTP | National Tenant Network, Inc. |
| NTPC | National Thermal Power Corporation |
| NTPC | National Tidal Power Corporation |
| NTPC | Northwest Territories Power Corporation |
| NTQ | Network Technologies Queensland |