| Acronym | Definition |
|---|
| NTI➣Narrow Therapeutic Index |
| NTI➣NASCAR (National Association for Stock Car Auto Racing) Technical Institute |
| NTI➣Nuclear Threat Initiative |
| NTI➣Network Technologies, Inc. (Aurora, Ohio) |
| NTI➣National Transit Institute (New Brunswick, New Jersey) |
| NTI➣NewTech Infosystems (software company, Irvine, California) |
| NTI➣Nunavut Tunngavik Incorporated |
| NTI➣New-to-Industry |
| NTI➣Nanotechnology Institute (Philadelphia, PA) |
| NTI➣New Technologies Inc. (Gresham, Oregon) |
| NTI➣Niveau Technique d'Intervention (French: Technical Level of Intervention) |
| NTI➣Newtech Infosystems |
| NTI➣National Technical Information |
| NTI➣NY Thermal, Inc. (home heating; Canada) |
| NTI➣Non-Thyroidal Illness |
| NTI➣Not Turned In |
| NTI➣National Technology Initiative |
| NTI➣Nociceptive Trigeminal Inhibition (medical/dental) |
| NTI➣New Technology Institute |
| NTI➣Nielsen Television Index |
| NTI➣National Tourism Indicators (statistics used to project tourism demand) |
| NTI➣New Technology Insertion |
| NTI➣Northern Trust Investments (Chicago, IL) |
| NTI➣Non-Taxable Income |
| NTI➣NeighborWorks Training Institute (Washington, DC) |
| NTI➣New Tech Infosystems |
| NTI➣National Toxics Inventory |
| NTI➣Neutral Tandem, Inc. (telecommunications; Chicago, IL) |
| NTI➣National Trauma Institute (San Antonio, TX) |
| NTI➣Non-Terrestrial Intelligence |
| NTI➣New Technology Integration |
| NTI➣Net Technologies, Inc. |
| NTI➣National Television Index |
| NTI➣Near Term Improvement |
| NTI➣No Travel Involved |
| NTI➣National Tactical Integration |
| NTI➣Not-To-Interfere |
| NTI➣Nippon Telematique, Inc. (various locations) |
| NTI➣Neurodiagnostic Technology Institute (Orlando, FL) |
| NTI➣NTI-Neutrik Test Instruments (Oregon) |
| NTI➣National Training Initiative (est. 2000) |
| NTI➣Network Terminating Interface (hardware) |
| NTI➣Nippon Technology Industries (Japan) |
| NTI➣Non Tobacco Ingredients |
| NTI➣Neighbourhood TAVIS (Toronto Anti-Violence Intervention Strategy) Initiative (Canada) |
| NTI➣Northern Telecom, Incorporated |
| NTI➣Naval Travel Instructions (US Navy) |
| NTI➣National Temperature Index |
| NTI➣National Training Inc. (Orange Park, FL) |
| NTI➣National Technology Index (Canada) |
| NTI➣Network Termination Interface |
| NTI➣Near Term Initiative |
| NTI➣No Text Included |
| NTI➣Never Think Impossible |