Click on quartet name "Harmonix" below for details
| Quartet | Chapter | Area of operation | Province | Category |
| 1991 Harmony Queens | Metro Music Machine | Harmony, Inc. Area 1 | Queen | ||
| 1993 Harmony Queens | Spectrum | Harmony, Inc. Area 1 | Queen | ||
| 2025 Harmony Queens | Synergy | ScotianAires | Halifax Regional Municipality | Nova Scotia | Active Queen Queen |
| 4-FUN | Cobequid Fun-Tones | Oxford | Nova Scotia | Senior |
| Bijoux | Seaside A Cappella Chapter | Bridgewater | Nova Scotia | Senior |
| Connect 4 | Harmony, Inc. Area 1 | 1 | ||
| enJOY! | ScotianAires | Halifax Regional Municipality | Nova Scotia | |
| Flourish | Valley Voices | Kentville | Nova Scotia | |
| Four Shore | Seaside A Cappella Chapter | Bridgewater | Nova Scotia | |
| Harmonix | Island A Cappella | Charlottetown | Prince Edward Island | |
| Heart of the Sea | ScotianAires | Halifax Regional Municipality | Nova Scotia | Senior |
| Hot Flash | ScotianAires | Halifax Regional Municipality | Nova Scotia | Senior |
| Hummm Bugs | ScotianAires | Halifax Regional Municipality | Nova Scotia | |
| Lookin' 4 Treble | Sea Belles | Saint John | New Brunswick | |
| Moments of Magic | Sea Belles | Saint John | New Brunswick | |
| Resonate | Valley Voices | Kentville | Nova Scotia | |
| Silvern Voices | Newfound Sound, Inc. | St John's | Newfoundland & Labrador | Senior |
| Sister Q | Valley Voices | Kentville | Nova Scotia | Senior |
| Soleil | Valley Voices | Kentville | Nova Scotia | |
| SPINDRIFT | Newfound Sound, Inc. | St John's | Newfoundland & Labrador | Senior |
| Tonic! | ScotianAires | Halifax Regional Municipality | Nova Scotia |
