| 100% | CIA | 3 | Surveillance group for the US: Abbr. |
| 63% | WNBA | 4 | Group for the Chicago Sky: Abbr. |
| 61% | NHL | 3 | Group for the Toronto Maple Leafs: Abbr. |
| 61% | AARP | 4 | Group for the 50-plus set: Abbr. |
| 61% | PTA | 3 | Group for the families of schoolchildren: Abbr. |
| 61% | NFL | 3 | Group for the Falcons and Seahawks: Abbr. |
| 61% | NFL | 3 | Group for the Jets and Jaguars: Abbr. |
| 60% | NBA | 3 | Group for the Bulls and the Bucks: Abbr. |
| 59% | AMA | 3 | Group for US physicians: Abbr. |
| 59% | ABA | 3 | Group for US lawyers: Abbr. |
| 58% | NASA | 4 | Agency responsible for the US moon landings: Abbr. |
| 58% | CFL | 3 | Canadian sports group for the Toronto Argonauts: Abbr. |
| 57% | MLS | 3 | Sports group for the Chicago Fire Football Club: Abbr. |
| 57% | NASA | 4 | Group running the US space program: Abbr. |
| 54% | AMA | 3 | Doctor's group in the US: Abbr. |
| 54% | ILO | 3 | U.N. group for workers: Abbr. |
| 53% | NEA | 3 | Biggest teachers' group in the US: Abbr. |
| 53% | NSC | 3 | Advisory group to the U.S. President: Abbr. |
| 53% | WPA | 3 | Oldest advocacy group for females in the US (since 1845) focusing on New York State and criminal justice issues (abbr.) |
| 53% | MLS | 3 | Sports group for such teams as the New England Revolution: Abbr. |
| 52% | CIA | 3 | US espionage group featured in the Bourne movies: Abbr. |
| 52% | NEA | 3 | Culture-funding group in the US: Abbr. |
| 52% | NEA | 3 | Museum-funding group in the US: Abbr. |
| 52% | ASPCA | 5 | US welfare group for cats and dogs: Abbr. |
| 51% | EPA | 3 | Group known for the Clean Water Act: Abbr. |
| 51% | ILO | 3 | U.N. group for workers everywhere: Abbr. |
| 51% | USO | 3 | Group that performs for the troops: Abbr. |
| 51% | NATO | 4 | Defense group containing the US, Canada, and most European nations: Abbr. |
| 51% | EDT | 3 | Clock setting for the US Open Tennis Championship (Abbr.) |
| 51% | EPA | 3 | Group responsible for the Toxic Substances Control Act: Abbr. |