| Quartet | Chapter | Area of operation | Province | Category |
| 1984 Harmony Queens | Black Magic | Harmony, Inc. Area 5 | Queen | ||
| 4Ever Plaid | Harmony, Inc. Area 5 | |||
| Broken Chords | Nickel City Sound | Sudbury | Ontario | |
| Fearless | Sing Niagara | Niagara | Ontario | Senior |
| Happy Together | Nickel City Sound | Sudbury | Ontario | Senior |
| Kindred Spirits | Nickel City Sound | Sudbury | Ontario | |
| Moving Parts | Scarborough Harmony | Scarborough, ON | Ontario | |
| Ms4Tune | Harmony, Inc. Area 5 | |||
| ODYSSEY | A Cappella Showcase | Milton | Ontario | Senior |
| Onyx | A Cappella Showcase | Milton | Ontario | |
| Ring It On | Shades of Harmony | London | Ontario | |
| Sapphire | A Cappella Showcase | Milton | Ontario | |
| Sharpen Up | Scarborough Harmony | Scarborough, ON | Ontario | |
| Sweet 'n Salty | A Cappella Showcase | Milton | Ontario | Senior |
| The FourTune Seekers | Thousand Islanders | Brockville, ON | Ontario | Senior |
| Wicked Pitches | Skyway Connection | Hamilton | Ontario |
