| Advocis, Simcoe-Muskoka Chapter | |
| Alpine Ontario, Collingwood, Southern Ontario Division | Collingwood |
| Asperger's Society of Ontario | Toronto Downtown North |
| Association of Administrative Professionals, Barrie / Simcoe County Branch | Barrie |
| Association of Day Care Operators of Ontario (The) | St Catharines |
| Association of Hearing Instrument Practitioners of Ontario | Lindsay |
| Barrie and Area Ontario Health Team, Barrie - no physical address | Barrie |
| Barrie and District Association of Basketball Officials | Barrie |
| Barrie and District Association of Realtors | Barrie |
| Barrie Association of Volunteer Administrators | Barrie |
| Barrie Construction Association | Barrie |
| Barrie Police Association, Barrie | Barrie |
| Barrie Region Innovation Xchange, No Physical Address | Barrie |
| Beeton and District Agricultural Society, Beeton & District Agricultural Society, Beeton Fall Fair | New Tecumseth |
| Blue Mountain Foundation for the Arts | Collingwood |
| BNI Ontario Central North, Orillia | Orillia |
| Business and Professional Women (BPW) Barrie | Barrie |
| Business Network International. Georgian Triangle Chapter | Collingwood |
| CIM Chartered Managers Canada, Head Office, Canadian Institute of Management | Barrie |
| Clearview Ministerial Association, No Physical Address | Clearview (Simcoe County) |
| College of Audiologists and Speech Language Pathologists of Ontario | Toronto Downtown North |
| College of Dental Technologists of Ontario | Scarborough |
| College of Early Childhood Educators | Toronto |
| College of Psychologists of Ontario (The) | Toronto Downtown North |
| College of Registered Psychotherapists of Ontario | Toronto Downtown |
| Collingwood Agricultural Society, Great Northern Exhibition | Clearview (Simcoe County) |
| Collingwood Downtown Business Improvement Area | Collingwood |
| Cookstown Agricultural Society | Innisfil |
| Couchiching Ontario Health Team | Orillia |
| Crosspoint Business Ministry Connections | Barrie |
| Dietitians of Canada | Toronto Downtown Central |
| Downtown Barrie BIA, Barrie | Barrie |
| Downtown Orillia Management Board | Orillia |
| Easter Seals Ontario, Barrie-Simcoe County Office | Barrie |
| Ecological Farmers Association of Ontario | Guelph |
| Essa and District Agricultural Society, Essa Agriplex | Essa |
| Farmers' Markets Ontario | Brighton (Municipality of) |
| Farms at Work | Peterborough |
| Geneva Centre for Autism | Toronto Downtown |
| Georgian Bay Football Officials Association | Barrie |
| Georgian Triangle Development Institute, Collingwood - Mailing Address | Collingwood |
| Georgian Triangle Ministerial Association | Clearview (Simcoe County) |
| Human Resources Professionals Association, Barrie and District Chapter | Barrie |
| Insurance Bureau of Canada, Ontario Head Office, Consumer Information Centre | Toronto |
| International Brotherhood of Electrical Workers, Barrie Office, Local 353 | Barrie |
| Lakelands Association of REALTORS®, The | Huntsville |
| Midland and District Business Women's Association | Midland |
| Midland, Penetanguishene and District Builders Association | Midland |
| North Simcoe Muskoka and District Labour Council | Orillia |
| North Simcoe Muskoka Hospice Palliative Care Network, Orillia, Education and consultation | Orillia |
| North Simcoe Ontario Health Team | Midland |
| Ontario College of Trades | Toronto Downtown |
| Ontario Dental Association | Toronto Downtown North |
| Ontario English Catholic Teachers Association. Simcoe Muskoka Unit | Barrie |
| Ontario Federation for Cerebral Palsy | North York Central |
| Ontario Federation of Teaching Parents | Ontario |
| Ontario Nurses' Association, Orillia, Regional Office | Orillia |
| Ontario Registered Music Teachers Association, No Physical Address | Barrie |
| Orillia and District Agricultural Society, Severn | Severn |
| Orillia Business Womens Association | Orillia |
| Orillia Fine Arts Association | Orillia |
| Orillia Law Association | Orillia |
| Oro Agricultural Society | Oro-Medonte |
| Purple Hills Arts & Heritage Society, Station on the Green | Clearview (Simcoe County) |
| Quest Art School + Gallery, King St | Midland |
| Ramara Township, Brechin - 2297 Hwy 12, Ramara Chamber of Commerce | Brechin |
| Ramona Agricultural Society | Severn |
| Registered Nurses Association of Ontario, South Simcoe Chapter | Toronto |
| SEIU Healthcare | Barrie |
| Simcoe County Elementary Teachers' Federation | Barrie |
| Simcoe County Federation of Agriculture, Simcoe County Administration Building | Springwater |
| Simcoe County Home Builders' Association | Barrie |
| Simcoe County Law Association, Barrie | Barrie |
| Simcoe County Young Professionals Association | Barrie |
| Small Business Connect, No Physical Address | Barrie |
| South Georgian Bay Ontario Health Team | Collingwood |
| South Simcoe Arts Council | New Tecumseth |
| Special Olympics Ontario - Central Ontario | Ontario |
| Thalidomide Victims Association of Canada | Montréal |
| Tourism Simcoe County, No Physical Address, Simcoe County Farm Fresh | Simcoe |
| United Association for Plumbers, Steamfitters and Welders, Barrie Office, Local 46 | Barrie |
| Volunteer Coordinators Network of South Georgian Bay, Collingwood | Collingwood |
| Wasaga Beach Business Association, No Physical Address | Wasaga Beach |
| Wasaga Beach Women's Business Association, No Physical Address | Wasaga Beach |
| Zephyr Art Gallery | Orillia |