| ABR Autism Services of Northumberland | Cobourg |
| Acoustic Neuroma Association of Canada | Toronto |
| Al-Anon, Angus / Borden, District 1 - Love and Hope Group | Adjala-Tosorontio |
| Al-Anon, Bradford, District 18 - Journey to Freedom Group | Bradford West Gwillimbury |
| Al-Anon, Orillia, Orillia - District 1 Muskoka | Orillia |
| Al-Anon / Alateen, Barrie - No Physical Address | Barrie |
| Al-Anon / Alateen Family Groups, No Physical Address | Stratford |
| Al-Anon and Alateen Family Groups, Bruce County - No Physical Address, District 3 Bruce County | Brockton |
| Al-Anon and Alateen Family Groups, Georgian Bay - No Physical Address, District 2 Georgian Bay | Owen Sound |
| Al-Anon and Alateen Family Groups, North Simcoe, Muskoka and Parry Sound - No physical address, District 1 - North Simcoe, Muskoka and Parry Sound | Bracebridge |
| Al-Anon Family Groups, Northumberland - No Physical Address, Al-Anon Family Groups - Northumberland | Cobourg |
| Al-Anon Family Groups, Peterborough - No physical address, Al-Anon / Alateen Family Groups - Peterborough | Peterborough |
| Al-Anon. North Simcoe, Midland, Serenity Al-Anon Family Group | Midland |
| Alcoholics Anonymous, Barrie, Barrie and Area Intergroup | Barrie |
| Alcoholics Anonymous, Lindsay - Mailing Address Only, Victoria Haliburton District | Kawartha Lakes |
| Alcoholics Anonymous, Western Georgian Bay District 9 | Owen Sound |
| Alcoholics Anonymous, Alcoholics Anonymous - Northumberland Chapter | Northumberland County |
| Alcoholics Anonymous | Midland |
| Alcoholics Anonymous, Eastern Georgian Bay District 7 Area 86 | |
| Alcoholics Anonymous, Huntsville-Parry Sound District 17 | Huntsville |
| Alcoholics Anonymous, Huron County Meetings | Clinton |
| Alcoholics Anonymous, Stratford and Perth County Meetings | Stratford |
| Alcoholics Anonymous, Peterborough, Kawartha District 86 | Peterborough |
| Alcoholics Anonymous South Simcoe, Alliston, Alcoholics Anonymous | New Tecumseth |
| Alcoholics Anonymous South Simcoe, Borden CFB, Alcoholics Anonymous | Adjala-Tosorontio |
| Alcoholics Anonymous South Simcoe, Bradford, Alcoholics Anonymous | Bradford West Gwillimbury |
| Alcoholics Anonymous South Simcoe, Innisfil - Alcona, Alcoholics Anonymous | Innisfil |
| Alcoholics Anonymous South Simcoe, Innisfil - Stroud, Alcoholics Anonymous | Innisfil |
| Alcoholics Anonymous South Simcoe, Tottenham, Alcoholics Anonymous | New Tecumseth |
| ALS Canada, Mailing Address, ALS Canada Community Services | Barrie |
| Alz Well That Enz Well, Inc., Alz Well That Enz Well | Alnwick/Haldimand |
| Alzheimer Society, Peterborough Office, Peterborough, Kawartha Lakes, Northumberland and Haliburton | Peterborough |
| Alzheimer Society Huron Perth, Betty Cardno Memorial Centre, Clinton, First Link, Alzheimer Society Huron Perth | Central Huron |
| Alzheimer Society Huron Perth, First Link, Alzheimer Society Huron Perth, Stratford Office | Stratford |
| Alzheimer Society Huron Perth, North Perth Satellite Office - Listowel, First Link, Alzheimer Society Huron Perth | North Perth |
| Alzheimer Society Huron Perth, St Marys Satellite Location, First Link, Alzheimer Society Huron Perth | St Marys |
| Alzheimer Society Huron Perth, Stratford Office | Stratford |
| Alzheimer Society Huron Perth, Support Groups - Huron and Perth, Mailing Address Only | Central Huron |
| Alzheimer Society Huron Perth, Wingham Satellite Location, First Link, Alzheimer Society Huron Perth | North Huron |
| Alzheimer Society Huron Perth, Zurich Satellite Location, First Link, Alzheimer Society Huron Perth | Bluewater |
| Alzheimer Society of Dufferin County | Orangeville |
| Alzheimer Society of Grey-Bruce | Owen Sound |
| Alzheimer Society of Muskoka | Bracebridge |
| Alzheimer Society of Muskoka, First Link Program | Bracebridge |
| Alzheimer Society of Simcoe County, Care Partner Support Groups, Barrie | Barrie |
| Arthritis Society Canada, Owen Sound - Grey and Bruce Region, Arthritis Society Canada - Grey and Bruce Region | Owen Sound |
| Aspire Community & Developmental Services | Barrie |
| Autism Ontario [Central East] | Toronto |
| Barrie Free Methodist Church, Barrie - Cundles Rd E | Barrie |
| Barrie Native Friendship Centre, Barrie - 175 Bayfield St, Akwe:go Program | Barrie |
| Barrie. Recreation and Culture Services, Recreation Programs | Barrie |
| Bereaved Families of Ontario, No Physical/Mailing Address | Peterborough |
| Better Ways for Seniors Ltd., Mobile Service | St Marys |
| Brain Injury Association of London and Region - Perth Huron, Avondale United Church, Perth County Social Leisure Group | Stratford |
| Brain Injury Association of London and Region - Perth Huron, Libro Community Hall, Huron County Support Group | Clinton |
| Brain Injury Association of London and Region - Perth Huron, Local Community Food Centre, Perth County Support Group | Stratford |
| Breaking Down Barriers, Independent Living Resource Centre, Peer Support Program, Independent Living Skills, Information and Referral | Collingwood |
| Canadian Alopecia Areata Foundation | King Township |
| Canadian Angelman Syndrome Foundation, Canadian Angelman Syndrome Society | Edmonton |
| Canadian Celiac Association, Grey Bruce Celiac Support Group | Kincardine |
| Canadian Mental Health Association Grey Bruce, Mental Health and Addiction Services, Hanover - 425 10th St, Pregnancy and/or Parenting | Hanover |
| Canadian Mental Health Association Grey Bruce, Mental Health and Addiction Services, Owen Sound - 1101 2nd Ave E, Suite 207, Pregnancy and/or Parenting | Owen Sound |
| Canadian Mental Health Association Haliburton, Kawartha, Pine Ridge, Journeying Together, Lindsay - 33 Lindsay St S | Kawartha Lakes |
| Canadian Mental Health Association, Muskoka-Parry Sound, Bracebridge Office, General Services | Bracebridge |
| Canadian Mental Health Association, Muskoka-Parry Sound, Council of Consumer / Survivor and Family Initiatives, Bracebridge Office | Bracebridge |
| Canadian Mental Health Association, Muskoka-Parry Sound, Council of Consumer / Survivor and Family Initiatives, Parry Sound Office | Parry Sound |
| Canadian Mental Health Association, Muskoka-Parry Sound, Huntsville Office, Council of Consumer / Survivor and Family Initiatives | Huntsville |
| Canadian Mental Health Association, Muskoka-Parry Sound, Huntsville Office, General Services | Huntsville |
| Canadian Mental Health Association, Muskoka-Parry Sound, Parry Sound Office, General Services - Parry Sound | Parry Sound |
| Canadian Mental Health Association, Muskoka-Parry Sound, Powassan, Council of Consumer / Survivor and Family Initiatives | Powassan |
| Canadian Mental Health Association, Muskoka-Parry Sound, South Muskoka, Council of Consumer / Survivor and Family Initiatives | Gravenhurst |
| Canadian Mental Health Association, Muskoka-Parry Sound, Sundridge Office, General Services | Sundridge |
| Canadian Mental Health Association, Peel Dufferin Branch, Orangeville Office, Mental Health Supports | Orangeville |
| Canadian Mental Health Association. Simcoe County Branch, Online / Telephone Service, Family Caregiver Support Group | Barrie |
| Candlelighters Simcoe - Parents of Children with Cancer, Barrie - Mailing Address | Barrie |
| Cangrands National Kinship Support, Mailing Address | Saskatchewan |
| Canopy Support Services, Peterborough, Autism Services | Peterborough |
| Canopy Support Services, Peterborough, Fetal Alcohol Spectrum (FASD) | Peterborough |
| CCRC, Peterborough - George St N, Professional Counselling Program and Employee Assistance Programs | Peterborough |
| Celebrate Recovery, Elgin Missionary Church | Stratford |
| Centre de santé communautaire CHIGAMIK Community Health Centre, Midland - Bayshore Dr, Mama Tribe | Midland |
| CFS Counselling + Wellbeing, Barrie - Anne St S, MatureMinds | Barrie |
| Chesley Community Church | Arran-Elderslie |
| Chippewas of Nawash Unceded First Nation, Neyaashiinigmiing - Lighthouse Rd, E'minoyaajig Binojiingyag | Neyaashiinigmiing |
| Christine's Place, Gravenhurst | Gravenhurst |
| Christine's Place, Huntsville | Huntsville |
| Chronic Pain, Fibromyalgia, Arthritis and Long Haul COVID Support Group | Goderich |
| CMHA Huron Perth Addiction and Mental Health Services, Huron County office, CMHA Huron Perth Addiction and Mental Health Services, Goderich | Goderich |
| CMHA Huron Perth Addiction and Mental Health Services, Stratford Office - 10 Downie St, CMHA Huron Perth Addiction and Mental Health Services, Stratford | Stratford |
| CMHA Huron Perth Addiction and Mental Health Services, Stratford Office - 10 Downie St, Phoenix Centre & Peer Support | Stratford |
| CNIB Simcoe / Muskoka, Midland, Penetanguishene, Orillia, and Barrie, Beyond Vision Loss Group | Barrie |
| Cobourg Ostomy Support Group of Northumberland | Cobourg |
| Cocaine Anonymous, Barrie - No Physical Address, Southern Ontario Cocaine Anonymous - Barrie Meetings | Barrie |
| Community Care City of Kawartha Lakes, Lindsay - 2 Kent St W, Hospice Services - Grief Support | Lindsay |
| Community Care City of Kawartha Lakes, Lindsay - 2 Kent St W, Hospice Services - Illness Support | Lindsay |
| Community Health Centres of Northumberland | Port Hope (Municipality of) |
| Community Living Association for South Simcoe, Alliston, Parent / Advocate Support Group | New Tecumseth |
| Community Living Trent Highlands, Haliburton - Victoria St, Family Support | Haliburton |
| Community Living Trent Highlands, Lindsay - McLaughlin Rd, Family Support | Kawartha Lakes |
| Community Living Trent Highlands, Peterborough - Aylmer St, Family Support | Peterborough |
| Couchiching Family Health Organization, Orillia - Forest Ave, Aging Gracefully Group | Orillia |
| Couchiching Family Health Organization, Orillia - Memorial Ave, Fearless Anxiety Group | Orillia |
| Couchiching Family Health Organization, Orillia - Memorial Ave, Worry Warriors | Orillia |
| Cystic Fibrosis Canada, Huron Oxford Perth Chapter | North Perth |
| Cystic Fibrosis Canada, Peterborough - Mailing Address, Peterborough and District Chapter | Peterborough |
| Down Syndrome Association of Simcoe County, Mailing Address | Barrie |
| Dufferin Child and Family Services, Child and Youth Mental Health | Orangeville |
| Emmanuel Baptist Church, Barrie | Barrie |
| Endometriosis Network Canada | Canada |
| Esprit Place Family Resource Centre, Parry Sound | Parry Sound |
| Family Services Perth-Huron, Stratford - Avondale United Church, Seniors Connection & Support Group | Stratford |
| Family Services Perth-Huron, Stratford, Counselling Services | Stratford |
| Family Services Perth-Huron, Stratford | Stratford |
| Fellowship Christian Reformed Church | Brighton (Municipality of) |
| Ferndale Bible Church, DivorceCare | Peterborough |
| Ferndale Bible Church, GriefShare | Peterborough |
| Four Counties Addiction Services Team, Community Withdrawal Management, Peterborough Office | Peterborough |
| Fragile X Research Foundation of Canada | Brampton |
| Friends (The), Community and Health Care Services, Parry Sound, Parry Sound | Parry Sound |
| Friends (The), Muskoka & Parry Sound Caregiver's Support Network, Parry Sound | Parry Sound |
| Gam-Anon, Innisfil | Innisfil |
| Gamblers Anonymous, Barrie - No Physical Address | Barrie |
| Gamblers Anonymous, Orillia, Gamblers Anonymous, Orillia | Orillia |
| Gilbert Centre for Social and Support Services, Barrie Office, GenQ | Barrie |
| Gilbert Centre for Social and Support Services, Barrie Office, New Horizons for 2S-LGBTQ+ Older Adults | Barrie |
| Gilbert Centre for Social and Support Services, Barrie Office, QT Youth Connection | Barrie |
| Gilbert Centre for Social and Support Services, Barrie Office, Trans Q Social Group | Barrie |
| Gilda's Club Simcoe Muskoka | Barrie |
| Good Grief, Grief Counselling and Education | Orangeville |
| GrandKin of Simcoe County | Barrie |
| H.O.P.E. (Homes of Priority Education), Virtual only | Stratford |
| Haliburton Highlands Health Services, Community Support Services Division - Adult Day Program, Haliburton - 7185 Gelert Road | Haliburton |
| Haliburton Highlands Health Services, Community Support Services Division - Drop-in Grief Support Group, Haliburton - 7185 Gelert Road | Haliburton |
| Hazelbrae Barnardo Home Memorial Group | Peterborough |
| Hemophilia Ontario | Scarborough North |
| Hope Barrie, Barrie - Mary St, Hope Centre | Barrie |
| Hospice Dufferin, Community Hospice | Orangeville |
| Hospice Georgian Triangle | Collingwood |
| Hospice Huntsville | Huntsville |
| Hospice Muskoka | Muskoka Lakes Township |
| Hospice Orillia, Overdose Related Loss Support Group | Orillia |
| Hospice Peterborough | Peterborough |
| Hospice Simcoe, Bell Farm Rd, Grief and Bereavement Support | Barrie |
| Hospice West Parry Sound | Parry Sound |
| Huntington Society of Canada, Peterborough Chapter, Huntington Disease Resource Centre, East Central Ontario Region | Peterborough |
| Huron Perth Healthcare Alliance, Community Stroke Rehabilitation Team - Moving Forward With Stroke Program, Avondale United Church | Stratford |
| Huronia Transition Homes, Choices for Children | Midland |
| Kawartha Lakes Autism Support, Kennedy Place | Kawartha Lakes |
| Keystone Child, Youth and Family Services, Owen Sound - 3rd Ave W, Keystone Prevention Programs | Owen Sound |
| Life After Stroke, Peterborough, Life After Stroke Peterborough | Peterborough |
| Lupus Ontario, Online/Web Service, Online Support Group | |
| March of Dimes Canada, Barrie - Bryne Dr, Brain Injury Services - Outreach Activity Groups in Simcoe County | Barrie |
| Matthews House, Hospice Services - Our Residential Services | New Tecumseth |
| ME / FM Association of Peterborough and District, Peterborough | Peterborough |
| Mitchell and Area Community Outreach, Congregate Dining & Social Programs | West Perth |
| Mitchell and Area Community Outreach, Wellness / Exercise program | West Perth |
| Moose Deer Point First Nation, Mactier - 1025C Mitawbik Rd, Health Services | Georgian Bay Township |
| MS Canada, Durham Northumberland - Mailing Address, Durham Northumberland | Cobourg |
| MS Canada, Mailing Address, Barrie Support Group | Barrie |
| MS Canada, Online/Web Service, Virtual Support Groups | Toronto |
| MS Canada | Toronto |
| Multiple Births Canada | Richmond Hill |
| Muskoka Family Network, Muskoka District - No physical address | |
| Muskoka Tourette Syndrome Resource Unit, Bracebridge, Support Group | Bracebridge |
| My Sister's Place | New Tecumseth |
| Nar-Anon Family Groups of Ontario, Barrie - No Physical Address | Barrie |
| Nar-Anon Family Groups of Ontario, Innisfil - Virtual | Innisfil |
| Nar-Anon Family Groups of Ontario, Innisfil | Innisfil |
| Nar-Anon Family Groups of Ontario, Owen Sound | Owen Sound |
| Narcotics Anonymous, Central Lake Ontario Area | Oshawa |
| Narcotics Anonymous, Georgian Heartland Area | Clearview (Simcoe County) |
| New Beginnings Support Group, Online/Web Service | Toronto |
| New Life Church, Collingwood, You in Mind Support Groups | Collingwood |
| New Path Youth and Family Services of Simcoe County, Barrie Head Office, Parenting Support Programs | Barrie |
| Nogojiwanong Friendship Centre, Addictions and Mental Health | Peterborough |
| Nogojiwanong Friendship Centre, Kizhaay Anishinaabe Niin | Peterborough |
| Northumberland Child Development Centre, Northumberland Bridges Program, Port Hope | Port Hope (Municipality of) |
| Northumberland Child Development Centre, Port Hope, Administration | Port Hope (Municipality of) |
| ONE CARE Home & Community Support Services, Clinton, Adult Day Services, Clinton | Central Huron |
| Ontario Parents Advocating for Children with Cancer | Barrie |
| OPAL Self-help for Physically Challenged | West Perth |
| Orillia Depression Anxiety and Manic Depression Self Help Group | Severn |
| Osteoporosis Canada [Central East], Bruce Grey Dufferin Huron Perth Lambton, Ontario Osteoporosis Strategy - Bruce Grey Dufferin Huron Perth Lambton | Owen Sound |
| Osteoporosis Canada [Central East], Peterborough | Peterborough |
| Overeaters Anonymous, Mailing Address, Central Ontario Intergroup | |
| Overeaters Anonymous, St Paul's Center Orillia OA Group, Living in Recovery | Orillia |
| Overeaters Anonymous, Wasaga Beach, Wasaga Beach Support Group | Wasaga Beach |
| Parents Against Racism Simcoe County, Black Fathers Alliance | Barrie |
| Parents Against Racism Simcoe County, Parent Support Group | Barrie |
| Parents for Children's Mental Health, Simcoe County Chapter | |
| Parents for Children's Mental Health, Stratford Chapter | Stratford |
| Parkinson Canada, Support Groups | Barrie |
| Parkinson Canada, Bracebridge, Support Groups | Bracebridge |
| Parkinson Canada, Brighton, Support Groups | Brighton (Municipality of) |
| Parkinson Canada, Cobourg / Port Hope, Support Groups | Cobourg |
| Parkinson Canada, Collingwood, Support Groups | Collingwood |
| Parkinson Canada, Midland, Support Groups | Midland |
| Parkinson Canada, Orillia, Support Groups | Orillia |
| Parkinson Canada, Peterborough, Support Groups | Peterborough |
| PARN, Rainbow Youth Program | Peterborough |
| Patient / Client and Family Council, Penetanguishene | Penetanguishene |
| Peterborough and Central Region Post Polio Support Group | Selwyn Township |
| Peterborough Regional Health Centre, Pediatric Diabetes Education Centre | Peterborough |
| PFLAG Canada, Cobourg / Port Hope Chapter | Cobourg |
| PFLAG Canada, Waterloo-Wellington-Perth Chapter | Ontario |
| PFLAG Canada, No Physical Location, Barrie-Simcoe Chapter | Barrie |
| PFLAG Canada, Grey Bruce Chapter | Owen Sound |
| PFLAG Canada, Peterborough Chapter | Peterborough |
| PFLAG Canada - Stratford ON Chapter, No Physical Address | Stratford |
| Pregnancy Care and Family Support Centre, Pregnancy Care & Family Support Centre | Haliburton |
| ProActive Rehab & Sport Injury Centre, Brain Injury Survivor Support Group | Huntsville |
| Prostate Cancer Support Group Peterborough | Peterborough |
| PTSD The Truth Behind the Smile, United Centre - Stratford | Stratford |
| Rainbow Service Organization | Peterborough |
| Rainbows For All Children Canada, Canadian National Office, Rainbows For All Children Canada, Canadian National Office | Barrie |
| Rainbows For All Children Canada, Collingwood - No Physical Address, Rainbows Georgian Triangle | Collingwood |
| Recovery International, Muskoka Lakes Township Branch | Huntsville |
| Right to Heal, Peterborough | Peterborough |
| Saugeen First Nation, Saugeen Native Drug and Alcohol Counselling Centre, Saugeen First Nation - 47 Mason Dr | |
| Seasons Centre for Grieving Children | Barrie |
| Sexaholics Anonymous Ontario, Barrie - No Physical Address, Sexaholics Anonymous Barrie | Barrie |
| Simcoe County Suicide Awareness Council, No Physical Address | Barrie |
| Simcoe Muskoka District Health Unit, Alliston, Breastfeeding Support Group | Alliston |
| Simcoe Muskoka District Health Unit, Barrie, Breastfeeding Support Group | Barrie |
| Simcoe Muskoka District Health Unit, Bradford, Breastfeeding Support Group | Bradford West Gwillimbury |
| Simcoe Muskoka District Health Unit, Collingwood, Breastfeeding Support Group | Collingwood |
| Simcoe Muskoka District Health Unit, Gravenhurst Branch - 5 Pineridge Gate, Breastfeeding Support Group | Gravenhurst |
| Simcoe Muskoka District Health Unit, Huntsville Branch - 34 Chaffey St, Breastfeeding Support Group | Huntsville |
| Simcoe Muskoka District Health Unit, Midland Branch - Hugel Ave, Breastfeeding Support Group | Midland |
| Simcoe Muskoka District Health Unit, Orillia Branch - 169 Front St S, Breastfeeding Support Group | Orillia |
| Simcoe Muskoka Family Connexions, Bracebridge Office, Child and Youth Mental Health Programs | Bracebridge |
| Simcoe Muskoka Family Connexions, Huntsville Office, Child and Youth Mental Health Programs | Huntsville |
| Simcoe Peer Support for Mental Health and Addictions, Collingwood | Collingwood |
| South East Grey Community Health Centre, Dundalk - Artemesia St, Erskine Community Health Centre | Southgate |
| Spinal Cord Injury Ontario [Central East], Warsaw - Mailing Address, Peterborough Regional Office | Douro-Dummer |
| St Mary's Roman Catholic Church, Barrie, Bereavement Support Program | Barrie |
| St Paul's Trinity Anglican Church Wingham, Wingham | Wingham |
| Stratford and District Ostomy Association | Stratford |
| Stroke Recovery Association Barrie and District | Barrie |
| Support Group for Family and Friends of People With Brain Injuries | Port Hope (Municipality of) |
| Tanner Steffler Foundation, TSF Youth Hub | Central Huron |
| The Rainbow Club of South Georgian Bay, Collingwood | Collingwood |
| The Uptown Church, Orangeville - 207 Broadway St, Support Groups | Orangeville |
| TOPS, Perth County Chapters | Stratford |
| Tourette Canada, Peterborough and Kawartha Lakes Area Contact | Peterborough |
| Trinity Anglican Church, Bradford | Bradford West Gwillimbury |
| Victorian Order of Nurses - Perth-Huron Branch, Perth-Huron Branch - Long Dr, Perth-Huron Branch - Palliative Care Visiting Program | Stratford |
| VON Canada, Ontario Branch, Various locations, Grief Support Group of Bruce Grey | Owen Sound |
| We Are Warriors! - Canadian MS Collective, Online / Web Service | Canada |
| Wellspring Stratford Cancer Support Centre | Stratford |
| Women's House Serving Bruce and Grey, Mailing Address | Kincardine |
| YMCA Northumberland, Cobourg - Elgin Street West, Mothers of Newborns | Cobourg |
| YMCA of Simcoe/Muskoka, Barrie - Bayfield St, Inner Strength Training | Barrie |
| YMCA of Simcoe/Muskoka, Barrie - Bayfield St, Y Mind Youth | Barrie |