| Advocis, Simcoe-Muskoka Chapter | |
| Association of Administrative Professionals, Barrie / Simcoe County Branch | Barrie |
| Barrie and District Association of Realtors | Barrie |
| Barrie Construction Association | Barrie |
| Canadian Association of Farm Advisors | Stratford |
| Insurance Bureau of Canada, Ontario Head Office, Consumer Information Centre | Toronto |
| Lakelands Association of REALTORS®, The | Huntsville |
| Midland, Penetanguishene and District Builders Association | Midland |
| Muskoka Builders Association | Bracebridge |
| Ontario Woodlot Association, Huron Perth Chapter | Stratford |
| Perth-Huron Builders Association, Mailing Address | Stratford |
| Registered Insurance Brokers of Ontario | Toronto Downtown |
| Simcoe County Home Builders' Association | Barrie |
| Thornbury Builders and Trades Association, Mailing Address | Blue Mountains |