Quartets
| Name | Status | Category | District | Established Date |
|---|---|---|---|---|
| 'Round Midnight | Active | Men | Mid-Atlantic | 4/2/03 |
| 'SHOP CLASS | Active | Men | Mid-Atlantic | 10/4/17 |
| 'Shoptimus Prime | Active | Men | Ontario | 9/1/11 |
| 1-Up | Active | Men | Evergreen | 2/2/18 |
| 19th Avenue | Active | Men | Far Western | 6/24/16 |
| 2#2Bb | Active | Men | Carolinas | 5/23/13 |
| 29 Seconds | Active | Men | Mid-Atlantic | 2/18/11 |
| 3 Below | Active | Men | Cardinal | 3/1/17 |
| 3 Good Men | Active | Men | Mid-Atlantic | 2/2/03 |
| 3 of a kind | Active | Men | Sunshine | 11/1/11 |
| 3 Rivers 4 | Active | Men | Johnny Appleseed | 1/9/10 |
| 3 Wise Men | Active | Men | Mid-Atlantic | 1/2/06 |
| 3mp Quartet | Active | Women | Johnny Appleseed | 2/8/19 |
| 4 Alarm Fire | Active | Men | Ontario | 4/25/18 |
| 4 Better 4 Worse | Active | Mixed | Johnny Appleseed | 2/26/19 |
| 4 for 4 | Active | Men | Sunshine | 9/26/17 |
| 4 in Harmony | Active | Men | Central States | 3/16/15 |
| 4 on the floor | Active | Men | Central States | 1/24/16 |
| 4 Sharps, The | Active | Men | Sunshine | 5/2/05 |
| 4 The Moment | Active | Men | Northeastern | 3/11/19 |