| Academy of Learning Career College, Owen Sound |
| Acorn Montessori School |
| Acoustic Neuroma Association of Canada |
| Active Lifestyles Centre Grey Bruce |
| Adult Learning Centres Grey-Bruce-Georgian, Owen Sound |
| Adult Learning Centres Grey-Bruce-Georgian, Owen Sound, Literacy and Basic Skills |
| Adult Learning Centres Grey-Bruce-Georgian, Saugeen Shores, Literacy and Basic Skills |
| Adult Learning Centres Grey-Bruce-Georgian, Walkerton and Area, Literacy and Basic Skills |
| Adult Learning Centres Grey-Bruce-Georgian, Wiarton, Literacy and Basic Skills |
| Al-Anon and Alateen Family Groups District 2 and 3, Bruce County - No Physical Address, District 3 Bruce County |
| Al-Anon and Alateen Family Groups District 2 and 3, Georgian Bay - No Physical Address, District 2 Georgian Bay |
| Alcoholics Anonymous, Western Georgian Bay District 9 |
| Alert Ready - Emergency Alert System |
| Allan Kent Lawncare, Mailing address |
| Alzheimer Society of Grey-Bruce, First Link Program |
| Amabel-Sauble Child Care Centre |
| Annesley United Church |
| Arran-Elderslie Fire and Emergency Services, Chesley Fire Station # 90 |
| Arran-Elderslie Fire and Emergency Services, Paisley Fire Station # 80 |
| Arran-Elderslie Fire and Emergency Services, Tara Fire Station # 70 |
| Arran-Elderslie. Municipal Office |
| Arthritis Society Canada, Owen Sound - Grey and Bruce Region, Arthritis Society Canada - Grey and Bruce Region |
| Autism Ontario [Central East], Autism Ontario Central East |
| Automobile Insurance |