| Quartet | Chapter | Area of operation | Province | Category |
| 1984 Harmony Queens | Black Magic | Harmony, Inc. Area 5 | Queen | ||
| 4Ever Plaid | Harmony, Inc. Area 5 | |||
| Buena Vida | Capital Chordettes | Ottawa | Ontario | |
| Crosswinds | Harmony, Inc. Area 5 | Senior | ||
| Emerald | A Cappella Showcase | Milton | Ontario | New |
| Happy Together | Nickel City Sound | Sudbury | Ontario | Senior |
| JEMS | Sing Niagara | Niagara | Ontario | New Senior |
| Kindred Spirits | Nickel City Sound | Sudbury | Ontario | |
| Moving Parts | Scarbrough Harmony | Scarborough, ON | Ontario | |
| 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 | Scarbrough Harmony | Scarborough, ON | Ontario | New |
| Stay Tuned | Shades of Harmony | London | Ontario | |
| Sweet 'n Salty | A Cappella Showcase | Milton | Ontario | |
| The FourTune Seekers | Thousand Islanders | Brockville, ON | Ontario | Senior |
| WHAT FOUR | Shades of Harmony | London | Ontario | Senior |
| Wicked Pitches | Skyway Connection | Hamilton | Ontario |
