| Advocis, Simcoe-Muskoka Chapter | Barrie |
| Association of Administrative Professionals, Barrie / Simcoe County Branch | Barrie |
| Barrie and District Association of Realtors | Barrie |
| Barrie Construction Association | Barrie |
| Barrie Region Innovation Xchange, No Physical Address | Barrie |
| BNI Ontario Central North, Orillia | Orillia |
| Business and Professional Women (BPW) Barrie | Barrie |
| Business Network International. Georgian Triangle Chapter | Collingwood |
| Canadian Association of Farm Advisors | Stratford |
| Collingwood Downtown Business Improvement Area | Collingwood |
| Crosspoint Business Ministry Connections | Barrie |
| Downtown Barrie BIA, Barrie | Barrie |
| Downtown Huntsville BIA | Huntsville |
| Downtown Orillia Management Board | Orillia |
| Georgian Triangle Development Institute, Collingwood - Mailing Address | Collingwood |
| Insurance Bureau of Canada, Ontario Head Office, Consumer Information Centre | Toronto |
| Kawartha Family Business Group | Peterborough |
| Kawartha Manufacturers' Association, Peterborough - George St | Peterborough |
| Lakelands Association of REALTORS®, The | Huntsville |
| Meaford Business Improvement Association | Meaford |
| Midland and District Business Women's Association | Midland |
| Midland, Penetanguishene and District Builders Association | Midland |
| Muskoka Builders Association | Bracebridge |
| Ontario Woodlot Association, Huron Perth Chapter | Stratford |
| Orillia Business Womens Association | Orillia |
| Owen Sound Downtown Improvement Area | Owen Sound |
| Perth-Huron Builders Association, Mailing Address | Stratford |
| Peterborough & District Construction Association | Peterborough |
| Peterborough Downtown Business Improvement Area | Peterborough |
| Ramara Township, Brechin - 2297 Hwy 12, Ramara Chamber of Commerce | Brechin |
| Registered Insurance Brokers of Ontario | Toronto Downtown |
| Simcoe County Home Builders' Association | |
| Simcoe County Young Professionals Association | Barrie |
| Small Business Connect, No Physical Address | Barrie |
| Stratford Perth Centre for Business | Stratford |
| Thornbury Builders and Trades Association, Mailing Address | Blue Mountains |
| Thornbury Business Improvement Area | Thornbury |
| Wasaga Beach Business Association, No Physical Address | Wasaga Beach |
| Wasaga Beach Women's Business Association, No Physical Address | Wasaga Beach |
| Womens Business Network of Peterborough, Mailing Address | Peterborough |