| Code | | Site | | Code | | Site | | Code | | Site |
| BB4 | | Burlington Sectional | |
BB5 | | Brampton Sectional | |
BB6 | | Bradford Sectional | |
| BB7 | | Barrie Sectional | |
BBE | | Bronte Bridge Club | |
BBR | | Badminton And Racquet Club | |
| BBT | | Marilyn's Bridge | |
BC5 | | Caledon East Sectional | |
BC7 | | Sectional | |
| BCD | | Cavendish DBC of Toronto | |
BCR | | Club Rainbow | |
BGG | | St George's Golf and | |
| BH4 | | Hamilton Sectional | |
BHH | | Hart House Bridge Club | |
BHL | | Halton Bridge Club | |
| BHT | | Mt Hamilton Bridge Club | |
BHU | | ??? | |
BHZ | | Hazel's Bridge Club | |
| BIG | | Josee Hammill Bridge | |
BLB | | Lambton Golf and Country Club | |
BLE | | Oakville Bridge Club | |
| BLT | | ??? | |
BM5 | | Mississauga Sectional | |
BN6 | | Niagara on the Lake Sectional | |
| BOE | | ??? | |
BOV | | ??? | |
BOX | | Oakwood Bridge Club | |
| BP6 | | Parry Sound Sectional | |
BP8 | | Puslinch Sectional | |
BRD | | Rosedale Golf Club | |
| BS5 | | St Catharines Sectional | |
BSL | | Shoreline Bridge Club | |
BSO | | Stepping Stones Bridge | |
| BT5 | | Toronto Sectional | |
BTC | | Toronto Cr Sk and Cu Club | |
BTE | | Toronto East Bridge Club | |
| BTI | | Trillium Bridge Association | |
BTP | | The Toronto Hunt Club | |
BTR | | ??? | |
| BTS | | Thistle Bridge Club | |
BWB | | Wayne's Bridge World | |