| Rank | Abbreviation | Meaning |
|---|
| ***** | NHSA | National High School Association
| |
| **** | NHSA | Northern Hemisphere South America
| |
| **** | NHSA | New Hampshire Soccer Association
| |
| **** | NHSA | National Highway Safety Act
| |
| **** | NHSA | National Head Start Association
| |
| *** | NHSA | National Healthcare Staffing Association
| |
| *** | NHSA | National High School Alliance
| |
| *** | NHSA | New Hampshire Snowmobile Association
| |
| *** | NHSA | Neighborhood Housing Service of America
| |
| *** | NHSA | National Homeland Security Agency
| |
| *** | NHSA | National Household Survey on Alcohol
| |
| ** | NHSA | New Hampshire Snowmobiling Association
| |
| ** | NHSA | National Head Start Assocation
| |
| ** | NHSA | National Hellenic Student Association
| |
| ** | NHSA | National Human Services Assembly
| |
| ** | NHSA | National Highway Safety Agency
| |
| * | NHSA | Novato High School Alumni
| |
| * | NHSA | National Heart Savers Association
| |
| * | NHSA | National Highway Safety Administration
| |
| * | NHSA | New Hampshire Society of Accountants
| |
| * | NHSA | Network Hosted Storage Applications
| |
| * | NHSA | Norco Horse Show Associates
| |
| * | NHSA | Natural History Study Award
| |
| * | NHSA | North Hudson Sewage Authority
| |
| * | NHSA | National Haitian Student Alliance
| |