| NAPTA | National Alliance of Public Transportation Advocates 
| Others |
| NAPTA | National Assembly of Physical Therapist Assistants
| Others |
| NAPTA | National Association for Prevention of Teacher Abuse
| Others |
| NAPTA | National Association of Professional Teaching Assistants
| Others |
| NAPTA | National Association of Property Tax Attorneys
| Others |
| NAPTA | North American Particle Therapy Alliance
| Others |
| NAPTA | North American Petroleum Trainers Association
| Others |
| NAPTA | North American Process Technology Alliance
| Others |
| NAPTA | North American Punjabi Trucking Association
| Others |
| NAPTA | Northern Alberta Preschool Teachers Association
| Others |
| NAPTA | Northern Area Perfomance Theatre Awards
| Others |
| NAPTA | Northern Area Performance Theatre Awards
| Others |