Quartets
| Name | Status | District | Established Date |
|---|---|---|---|
| 'Round Midnight | Active | Mid-Atlantic | 4/2/03 |
| 'SHOP CLASS | Active | Mid-Atlantic | 10/4/17 |
| 'Shoptimus Prime | Active | Ontario | 9/1/11 |
| 1-Up | Active | Evergreen | 2/2/18 |
| 14th Street | Active | Evergreen | 10/1/96 |
| 19th Avenue | Active | Far Western | 6/24/16 |
| 2#2Bb | Active | Carolinas | 5/23/13 |
| 29 Seconds | Active | Mid-Atlantic | 2/18/11 |
| 3 Below | Active | Cardinal | 3/1/17 |
| 3 Good Men | Active | Mid-Atlantic | 2/2/03 |
| 3 Rivers 4 | Active | Johnny Appleseed | 1/9/10 |
| 3 Wise Men | Active | Mid-Atlantic | 1/2/06 |
| 4 Alarm Fire | Active | Ontario | 4/25/18 |
| 4 in Harmony | Active | Central States | 3/16/15 |
| 4 on the floor | Active | Central States | 1/24/16 |
| 4 Sharps, The | Active | Sunshine | 5/2/05 |
| 4 Times Young | Active | Central States | 10/4/18 |
| 4's Company | Active | Johnny Appleseed | 8/2/13 |
| 4-Ever Yours | Active | Far Western | 8/22/11 |
| 45 RPM | Active | Central States | 10/22/09 |