| S.H.I.F.T, Emergency Overnight Shelter Program | New Tecumseth |
| S.H.I.F.T, Daytime Drop-In Centre Program | New Tecumseth |
| S.H.I.F.T, Mobile Outreach Program | New Tecumseth |
| Sabine Cox, RP, Psychotherapy and Counselling | Innisfil |
| SafeCirc Newborn Circumcision Clinic | Barrie |
| SALT: Seniors And Law Enforcement Together, Orillia | Orillia |
| Salvation Army, Christmas Assistance Program, Midland - Dominion Ave | Midland |
| Salvation Army, Midland - Balm Beach Rd, Thrift Store | Midland |
| Salvation Army, Midland - Dominion Ave, Community Church | Midland |
| Salvation Army, Midland - Dominion Ave, Community Food Bank | Midland |
| Salvation Army, Midland - Dominion Ave, Street Outreach | Midland |
| Salvation Army (The) | Collingwood |
| Salvation Army (The), Christmas Hamper and Gift Program, Collingwood | Collingwood |
| Salvation Army (The), Collingwood Food Bank, Collingwood | Collingwood |
| Salvation Army (The), Collingwood, Collingwood Thrift Store | Collingwood |
| Salvation Army (The), Collingwood, Community and Family Services | Collingwood |
| Salvation Army (The), Collingwood, Hot Breakfast Program | Collingwood |
| Salvation Army (The), Community Church, Collingwood | Collingwood |
| Salvation Army (The), Hope Acres, Treatment Centre | Adjala-Tosorontio |
| Salvation Army Barrie, Barrie - Bayfield St, Christmas Programs | Barrie |
| Salvation Army Barrie, Barrie - Bayfield St, Community and Family Services | Barrie |
| Salvation Army Barrie, Barrie - Bayfield St, Community Emergency Response Unit | Barrie |
| Salvation Army Barrie, Barrie - Bayfield St, Family Emergency Shelter Program | Barrie |
| Salvation Army Barrie, Barrie - Bayfield St, Men's Emergency Shelter | Barrie |
| Salvation Army Barrie, Barrie - Essa Rd, Thrift Store | Barrie |
| Salvation Army Barrie, Barrie - Lillian Cres, Community Church | Barrie |
| Salvation Army Barrie, Barrie - Lillian Cres, Community Fellowship Cafe | Barrie |
| Salvation Army Barrie, Barrie - Mulcaster St, Simcoe County and Muskoka District Bail Verification and Supervision Program | Barrie |
| Salvation Army Barrie, Gravenhurst, Simcoe County and Muskoka District Bail Verification and Supervision Program | Gravenhurst |
| Salvation Army Orillia Citadel (The), Christmas Hamper Program, Orillia - Coldwater Rd W | Orillia |
| Salvation Army Orillia Citadel (The), Community and Family Services, Food Bank, Orillia - Coldwater Rd W | Orillia |
| Salvation Army Orillia Citadel (The), Orillia - Colborne St, Outreach Services - Food Truck | Orillia |
| Salvation Army Orillia Citadel (The), Orillia - Coldwater Rd W, Income Tax Clinic | Orillia |
| Salvation Army Orillia Citadel (The), Orillia - Coldwater Rd W, Orillia Corps (Church) | Orillia |
| Salvation Army Orillia Citadel (The), Orillia - Wyandotte St, Thrift Store | Orillia |
| Salvation Army Orillia Citadel (The), Youth Services, Orillia - Coldwater Rd W | Orillia |
| Samaritan House | Barrie |
| Sandbox Centre, Barrie | Barrie |
| Sandy's Support Services, Orillia | Severn |
| Sara Vista, Elmvale, Long Term Care Home | Springwater |
| Sarah Ann's Foot Care Services | Barrie |
| SCORE Hockey League | Barrie |
| Scottish Connection | Barrie |
| Scottish Country Dancing Group, Barrie | Barrie |
| Scottish Rite Charitable Foundation | Barrie |
| Scottish Rite Charitable Foundation, Barrie, Barrie Learning Centre for Children with Dyslexia | Barrie |
| Scottish Rite Charitable Foundation, Bracebridge, Muskoka Tutoring Room | Bracebridge |
| SE Health, North Simcoe Muskoka Office, Home Health Care Services | Barrie |
| Seasons Centre for Grieving Children | Barrie |
| Second Harvest Canada | Toronto |
| Seconds | Innisfil |
| Secure At Ease (North), Collingwood - First St | Collingwood |
| Seguin Public Libraries, Humphrey Main Branch | Seguin |
| SEIU Healthcare | Barrie |
| Senior Wish Association, Collingwood and Wasaga Beach, Adopt a Senior | Collingwood |
| Senior Wish Association, Mailing Address | Barrie |
| Seniors for Seniors, Barrie | Barrie |
| Seniors for Seniors, Collingwood | Collingwood |
| Serenity Birth Studio | Barrie |
| Serenity Retirement Residence, Barrie | Barrie |
| Service Canada, Virtual Service, Registered Disability Savings Plan | Canada |
| Service Canada | Ontario |
| Service Canada, Barrie, Canada Pension Plan Disability Benefits | Barrie |
| Service Canada, Barrie, Canada Pension Plan Survivor's Benefits - Children's Benefit | Barrie |
| Service Canada, Barrie, Canada Pension Plan Survivor's Benefits - Death Benefits | Barrie |
| Service Canada, Barrie, Canada Pension Plan Survivor's Benefits - Survivor's Pension | Barrie |
| Service Canada, Barrie, Canada Pension Plan | Barrie |
| Service Canada, Barrie, Canada Summer Jobs | Barrie |
| Service Canada, Barrie, Employment Insurance - Work Sharing | Barrie |
| Service Canada, Barrie, Employment Insurance, Barrie | Barrie |
| Service Canada, Barrie, Job Bank and Labour Market Information Program | Barrie |
| Service Canada, Barrie, Old Age Security - Allowance for the Survivor | Barrie |
| Service Canada, Barrie, Old Age Security - Allowance | Barrie |
| Service Canada, Barrie, Old Age Security - Guaranteed Income Supplement | Barrie |
| Service Canada, Barrie, Old Age Security - Pension | Barrie |
| Service Canada, Barrie, Opportunities Fund for Persons with Disabilities | Barrie |
| Service Canada, Barrie, Service Canada Centre, Barrie | Barrie |
| Service Canada, Barrie, Social Insurance Numbers | Barrie |
| Service Canada, Collingwood, Employment Insurance, Collingwood | Collingwood |
| Service Canada, Collingwood, Service Canada Centre | Collingwood |
| Service Canada, Orillia, Service Canada, Orillia | Orillia |
| Service Canada - Midland, Midland, Service Canada Centre | Midland |
| Service Canada Scheduled Outreach Site, Alliston, Federal Government Services | New Tecumseth |
| ServiceOntario, Alliston, Alliston Service Counter | New Tecumseth |
| ServiceOntario, Barrie - Bayfield St, Barrie (Bayfield St) Service Counter | Barrie |
| ServiceOntario, Barrie - Burton Ave, Barrie (Burton Ave) Service Counter | Barrie |
| ServiceOntario, Barrie - Simcoe St, Barrie (Simcoe St) Service Counter | Barrie |
| ServiceOntario, Barrie - Worsley St, Barrie Land Registry Office 51 | Barrie |
| ServiceOntario, Bradford, Bradford Service Counter | Bradford West Gwillimbury |
| ServiceOntario, Collingwood, Collingwood Service Counter | Collingwood |
| ServiceOntario, Elmvale, Elmvale Service Counter | Springwater |
| ServiceOntario, Midland, Midland Service Counter | Midland |
| ServiceOntario, Office of the Registrar General | Toronto |
| ServiceOntario, Stayner, Stayner Service Counter | Clearview (Simcoe County) |
| ServiceOntario, West and Highway 12 (Orillia), Orillia Service Counter | Orillia |
| Seven South Street Treatment Centre | Orillia |
| Sevenoaks Academy, Barrie | Barrie |
| Severn Sound Environmental Association, Great Canadian Shoreline Cleanup | Tay |
| Severn Sound Environmental Association | Tay |
| Severn Sound Source Protection Authority, Drinking Water Source Protection | Tay |
| Sexaholics Anonymous Ontario, Barrie - No Physical Address, Sexaholics Anonymous Barrie | Barrie |
| Shaks World Community Centre, 59 Maple Ave, Youth Programs | Barrie |
| Shawn's Mixed Martial Arts | Midland |
| Sheffield Park Black History and Cultural Museum | Blue Mountains |
| Shelter Now, Hartog House, Transitional Support Program | Midland |
| Shoebox Project for Women (The), Mailing Address, Simcoe and Grey County Chapter | Barrie |
| Simcare Childcare Services, Orillia | Orillia |
| Simcoe / Muskoka Supervised Access Centre | Midland |
| Simcoe Childcare Services, Innisfil - 25th Sdrd, Before and After School Program | Innisfil |
| Simcoe Childcare Services, Innisfil - St Paul Rd | Innisfil |
| Simcoe Clinic, Chronic Pain Care | Barrie |
| Simcoe Community Access Network Development Corporation | Barrie |
| Simcoe County Airport Service | Barrie |
| Simcoe County Alliance to End Homelessness, Barrie - No Physical Address, Barrie Chapter | Barrie |
| Simcoe County Alliance to End Homelessness, South Georgian Bay Chapter | Collingwood |
| Simcoe County Alliance to End Homelessness, Midland - Mailing address only, North Simcoe Chapter | Midland |
| Simcoe County Alliance to End Homelessness, New Tecumseth, South Simcoe Chapter | New Tecumseth |
| Simcoe County Alliance to End Homelessness, Orillia - Mailing Address, Orillia and Area Chapter | Orillia |
| Simcoe County Archives | Springwater |
| Simcoe County Band | Barrie |
| Simcoe County Chess Club | Barrie |
| Simcoe County Child Care Committee | Simcoe |
| Simcoe County Chinese Association | Barrie |
| Simcoe County District School Board, Adult Day School - North Simcoe Campus, North Simcoe Campus | Midland |
| Simcoe County District School Board, Adult High School Diploma Program, Barrie Learning Centre, Barrie Learning Centre | Barrie |
| Simcoe County District School Board, Adult High School Diploma Program, North Simcoe Campus, North Simcoe Campus | Midland |
| Simcoe County District School Board, Adult Learning and Continuing Education Department, Midhurst - Education Centre | Springwater |
| Simcoe County District School Board, Alliston - 46 Wellington St W, Unit 5, Simcoe Shores Secondary Schools | New Tecumseth |
| Simcoe County District School Board, Alliston Learning Centre Campus, Learning Centre, Alliston Learning Centre Campus | New Tecumseth |
| Simcoe County District School Board, Alliston Learning Centre Campus, Literacy and Basic Skills | New Tecumseth |
| Simcoe County District School Board, Angus, Simcoe Shores Secondary Schools | Essa |
| Simcoe County District School Board, Barrie - Huronia Rd, Simcoe Shores Secondary Schools | Barrie |
| Simcoe County District School Board, Barrie Learning Centre, Adult English as a Second Language | Barrie |
| Simcoe County District School Board, Barrie Learning Centre, International and Indigenous Languages Program | Barrie |
| Simcoe County District School Board, Barrie Learning Centre, Learning Centre, Barrie Learning Centre | Barrie |
| Simcoe County District School Board, Barrie Learning Centre, Literacy and Basic Skills | Barrie |
| Simcoe County District School Board, Barrie Learning Centre, Simcoe Shores Secondary Schools | Barrie |
| Simcoe County District School Board, Bradford - 157 Holland St E, Unit 6A, Simcoe Shores Secondary Schools | Bradford West Gwillimbury |
| Simcoe County District School Board, Bradford Learning Centre Campus, Adult High School Diploma Program, Bradford Campus | Bradford West Gwillimbury |
| Simcoe County District School Board, Collingwood Learning Centre Campus, Adult Education Program, Collingwood Learning Centre Campus | Collingwood |
| Simcoe County District School Board, Collingwood Learning Centre Campus, Simcoe Shores Secondary Schools | Collingwood |
| Simcoe County District School Board, Innisfil, Simcoe Shores Secondary Schools | Innisfil |
| Simcoe County District School Board, Learning Centre, Bradford Campus, Bradford Learning Centre Campus | Bradford West Gwillimbury |
| Simcoe County District School Board, Learning Centre, Orillia Learning Centre, Orillia Learning Centre Campus | Orillia |
| Simcoe County District School Board, Literacy and Basic Skills, Bradford Learning Centre Campus | Bradford West Gwillimbury |
| Simcoe County District School Board, Midhurst - Education Centre, Before and After School Programs | Springwater |
| Simcoe County District School Board, Midhurst - Education Centre | Springwater |
| Simcoe County District School Board, Midland - 7th Fire Campus, Simcoe Shores Secondary Schools | Midland |
| Simcoe County District School Board, Midland - Bay St, Alternative Learning Program for Students | Midland |
| Simcoe County District School Board, Newcomer Welcome Centre, Barrie Learning Centre | Barrie |
| Simcoe County District School Board, North Simcoe Campus, Literacy and Basic Skills | Midland |
| Simcoe County District School Board, North Simcoe Campus, Night School - North Simcoe Campus | Midland |
| Simcoe County District School Board, North Simcoe Campus, Simcoe Shores Secondary Schools | Midland |
| Simcoe County District School Board, Ontario Youth Apprenticeship Program, Midhurst - Education Centre | Springwater |
| Simcoe County District School Board, Orillia Learning Centre Campus, Literacy and Basic Skills | Orillia |
| Simcoe County District School Board, Orillia Learning Centre Campus, Simcoe Shores Secondary Schools | Orillia |
| Simcoe County District School Board, Prior Learning Assessment and Recognition, North Simcoe Campus | Midland |
| Simcoe County District School Board, School Attendance Counsellors, Midhurst - Education Centre | Springwater |
| Simcoe County District School Board, Wasaga Beach, Adult Education Program, Wasaga Beach | Wasaga Beach |
| Simcoe County District School Board, Winter Coat Drive, Orillia Learning Centre Campus | Orillia |
| Simcoe County Elementary Teachers' Federation | Barrie |
| Simcoe County Embroidery Guild | Springwater |
| Simcoe County Federation of Agriculture, Simcoe County Administration Building | Springwater |
| Simcoe County Greenbelt Coalition, Mailing Address | Simcoe |
| Simcoe County Historical Association | Barrie |
| Simcoe County Home Builders' Association | Barrie |
| Simcoe County Home School Info Link | Barrie |
| Simcoe County House Calls, Mobile Service | Barrie |
| Simcoe County House Calls, Georgian Bay House Calls | Midland |
| Simcoe County Housing Corporation, Angus, Angus Gardens Senior Citizens Complex | Angus |
| Simcoe County Ladies Ball Hockey League | Barrie |
| Simcoe County Law Association | Barrie |
| Simcoe County Law Association, Barrie | Barrie |
| Simcoe County Law Association, Barrie, Simcoe County Law Library | Barrie |
| Simcoe County Local Immigration Partnership | Midland |
| Simcoe County Master Gardeners | Springwater |
| Simcoe County Mountain Bike Club | Oro-Medonte |
| Simcoe County Museum, Day Camps | Springwater |
| Simcoe County Museum | Springwater |
| Simcoe County Quilters Guild | Springwater |
| Simcoe County Student Transportation Consortium | Barrie |
| Simcoe County Suicide Awareness Council, No Physical Address | Barrie |
| Simcoe County Trails, Mailing Address, Oro-Medonte Lake Country RailTrail | Oro-Medonte |
| Simcoe County Trappers Council | Severn |
| Simcoe County Violence Against Women Coordinating Committee | Simcoe |
| Simcoe County Young Professionals Association | Barrie |
| Simcoe County, Corporation of, Administration Services, Midhurst Administration Centre | Springwater |
| Simcoe County, Corporation of, Alliston Satellite Office, Ontario Works | New Tecumseth |
| Simcoe County, Corporation of, Barrie Satellite Office, Ontario Works | Barrie |
| Simcoe County, Corporation of, Bradford West Gwillimbury Transfer Station, Solid Waste Management Department - Waste Facilities | Bradford West Gwillimbury |
| Simcoe County, Corporation of, Children and Community Services - Domiciliary Care Services, Midhurst Administration Centre | Springwater |
| Simcoe County, Corporation of, Children and Community Services - LEAP Program, Midhurst Administration Centre | Springwater |
| Simcoe County, Corporation of, Children Services, Midhurst Administration Centre | Springwater |
| Simcoe County, Corporation of, Collingwood Landfill Site 2, Solid Waste Management Department - Waste Facilities | Collingwood |
| Simcoe County, Corporation of, Collingwood Satellite Office, Ontario Works | Collingwood |
| Simcoe County, Corporation of, Elmvale, Long Term Care and Seniors Services - Adult Day Program | Springwater |
| Simcoe County, Corporation of, Finance Department, Midhurst Administration Centre | Springwater |
| Simcoe County, Corporation of, Linx+ Accessible Transit, No physical address | Midland |
| Simcoe County, Corporation of, Long Term Care and Seniors Services - Sunset Village Independent Living for Seniors, Sunset Village and Manor | Collingwood |
| Simcoe County, Corporation of, Mara Transfer Station - Site 7, Solid Waste Management Department - Waste Facilities | |
| Simcoe County, Corporation of, Matchedash Transfer Station, Solid Waste Management Department - Waste Facilities | Severn |
| Simcoe County, Corporation of, Midhurst Administration Centre, Age-Friendly Seniors Housing Grant Program | Springwater |
| Simcoe County, Corporation of, Midhurst Administration Centre, Community Paramedicine Home Visit Program | Springwater |
| Simcoe County, Corporation of, Midhurst Administration Centre, Community Paramedicine Wellness Clinic | Springwater |
| Simcoe County, Corporation of, Midhurst Administration Centre, Ontario Works | Springwater |
| Simcoe County, Corporation of, Midhurst, Tourism Simcoe County | Springwater |
| Simcoe County, Corporation of, Midland Satellite Office, Ontario Works | Midland |
| Simcoe County, Corporation of, Children and Community Services - Simcoe County Early Intervention Services | Midland |
| Simcoe County, Corporation of, No physical address, LINX Plus+ | Midland |
| Simcoe County, Corporation of, North Simcoe Transfer Station and Recycling Facility, Solid Waste Management Department - Waste Facilities | Midland |
| Simcoe County, Corporation of, Nottawasaga Landfill Site 10, Solid Waste Management Department - Waste Facilities | Clearview (Simcoe County) |
| Simcoe County, Corporation of, Online / Web Service, Simcoe County Immigration Portal | Midhurst |
| Simcoe County, Corporation of, Ontario Works - Funeral and Burial Assistance, Midhurst Administration Centre | Springwater |
| Simcoe County, Corporation of, Orillia Satellite Office, Ontario Works | Orillia |
| Simcoe County, Corporation of, Oro Landfill, Solid Waste Management Department - Waste Facilities | Oro-Medonte |
| Simcoe County, Corporation of, Paramedic Services, Midhurst Administration Centre | Springwater |
| Simcoe County, Corporation of, Penetanguishene, Long Term Care and Seniors Services - Adult Day Program | Penetanguishene |
| Simcoe County, Corporation of, Social and Community Services Division, Midhurst Administration Centre | Springwater |
| Simcoe County, Corporation of, Social Housing - Home Ownership Program, Midhurst Administration Centre | Springwater |
| Simcoe County, Corporation of, Social Housing - Housing Retention Program, Midhurst Administration Centre | Springwater |
| Simcoe County, Corporation of, Social Housing - Ontario Renovates, Midhurst Administration Centre | Springwater |
| Simcoe County, Corporation of, Social Housing - Secondary Suites Program, Midhurst Administration Centre | Springwater |
| Simcoe County, Corporation of, Social Housing Department, Midhurst Administration Centre | Springwater |
| Simcoe County, Corporation of, Solid Waste Management Department - Garbage Collection (Residential), Midhurst Administration Centre | Springwater |
| Simcoe County, Corporation of, Solid Waste Management Department - Green Bin / Organics Program, Midhurst Administration Centre | Springwater |
| Simcoe County, Corporation of, Solid Waste Management Department - Household Hazardous Waste, Midhurst Administration Centre | Springwater |
| Simcoe County, Corporation of, Solid Waste Management Department - Recycling, Midhurst Administration Centre | Springwater |
| Simcoe County, Corporation of, Tosorontio Landfill Site, Solid Waste Management Department - Waste Facilities | Adjala-Tosorontio |
| Simcoe County, Corporation of, Weed Inspection and By-law Enforcement, Midhurst Administration Centre | Springwater |
| Simcoe Early Education and Development Services, Barrie - Algonquin Ridge Elementary School, Before and After School Child Care | Barrie |
| Simcoe Early Education and Development Services, Barrie - Ardagh Bluffs Public School, Child Care Centre | Barrie |
| Simcoe Early Education and Development Services, Barrie - Holly Meadows Elementary School, Before and After School Child Care | Barrie |
| Simcoe Early Education and Development Services, Barrie - St Catherine of Siena Catholic Elementary School, Before and After School Child Care | Barrie |
| Simcoe Early Education and Development Services, Barrie - St John Paul II, Before and After School Child Care | Barrie |
| Simcoe Early Education and Development Services, Barrie - St Marguerite d'Youville Elementary School, Child Care Centre | Barrie |
| Simcoe Early Education and Development Services, Barrie - St Peter's Secondary School, Child Care Centre | Barrie |
| Simcoe Early Education and Development Services, Barrie - The Good Shepherd Catholic Elementary School, Before and After School Child Care | Barrie |
| Simcoe Early Education and Development Services, Barrie - W C Little Elementary School, Before and After School Child Care | Barrie |
| Simcoe Early Education and Development Services, Barrie - West Bayfield Elementary School, Child Care Centre | Barrie |
| Simcoe Huronia Home Services | Barrie |
| Simcoe Knitters for Global Warmth | Orillia |
| Simcoe Muskoka Catholic District School Board, Barrie - Alliance Blvd, Catholic Education Centre | Barrie |
| Simcoe Muskoka Catholic District School Board, Barrie - Alliance Blvd, Ontario Youth Apprenticeship Program | Barrie |
| Simcoe Muskoka Catholic District School Board, Barrie - Cundles Rd E, Adult High School Diploma Program | Barrie |
| Simcoe Muskoka District Health Unit, Alliston - 13 Wellington St W, Breastfeeding Place | New Tecumseth |
| Simcoe Muskoka District Health Unit, Barrie - 129 Ferris Lane, Breastfeeding Place | Barrie |
| Simcoe Muskoka District Health Unit, Barrie - 80 Bradford St, Clinical Service | Barrie |
| Simcoe Muskoka District Health Unit, Barrie - 80 Bradford St, Dental Screening and Dental Clinics | Barrie |
| Simcoe Muskoka District Health Unit, Barrie - 80 Bradford St, Immunization Clinic | Barrie |
| Simcoe Muskoka District Health Unit, Barrie - 80 Bradford St, Sexual Health Counselling, Education and Clinic Services | Barrie |
| Simcoe Muskoka District Health Unit, Barrie Head Office - 15 Sperling Dr, Community and Family Health Department | Barrie |
| Simcoe Muskoka District Health Unit, Barrie Head Office - 15 Sperling Dr, Environmental Health Department | Barrie |
| Simcoe Muskoka District Health Unit, Barrie Head Office - 15 Sperling Dr, Healthy Babies Healthy Children Program | Barrie |
| Simcoe Muskoka District Health Unit, Barrie Head Office - 15 Sperling Dr, Parenting Support | Barrie |
| Simcoe Muskoka District Health Unit, Barrie Head Office - 15 Sperling Dr, Prenatal Classes | Barrie |
| Simcoe Muskoka District Health Unit, Barrie Head Office - 15 Sperling Dr | Barrie |
| Simcoe Muskoka District Health Unit, Bradford - 425 Holland St W, Breastfeeding Place | Bradford West Gwillimbury |
| Simcoe Muskoka District Health Unit, Collingwood - 250A Peel St, Breastfeeding Place | Collingwood |
| Simcoe Muskoka District Health Unit, Collingwood Branch - 280 Pretty River Pkwy, Clinical Service | Collingwood |
| Simcoe Muskoka District Health Unit, Collingwood Branch - 280 Pretty River Pkwy, Community and Family Health Department | Collingwood |
| Simcoe Muskoka District Health Unit, Collingwood Branch - 280 Pretty River Pkwy, Environmental Health Department | Collingwood |
| Simcoe Muskoka District Health Unit, Collingwood Branch - 280 Pretty River Pkwy, Healthy Babies Healthy Children Program | Collingwood |
| Simcoe Muskoka District Health Unit, Collingwood Branch - 280 Pretty River Pkwy, Immunization Clinic | Collingwood |
| Simcoe Muskoka District Health Unit, Collingwood Branch - 280 Pretty River Pkwy, Parenting Support | Collingwood |
| Simcoe Muskoka District Health Unit, Collingwood Branch - 280 Pretty River Pkwy, Prenatal Classes | Collingwood |
| Simcoe Muskoka District Health Unit, Collingwood Branch - 280 Pretty River Pkwy, Sexual Health Counselling, Education and Clinic Services | Collingwood |
| Simcoe Muskoka District Health Unit, Collingwood Branch - 280 Pretty River Pkwy | Collingwood |
| Simcoe Muskoka District Health Unit, Cookstown Branch - 25 King St S, Clinical Service | Innisfil |
| Simcoe Muskoka District Health Unit, Cookstown Branch - 25 King St S, Community and Family Health Department | Innisfil |
| Simcoe Muskoka District Health Unit, Cookstown Branch - 25 King St S, Environmental Health Department | Innisfil |
| Simcoe Muskoka District Health Unit, Cookstown Branch - 25 King St S, Healthy Babies Healthy Children Program | Innisfil |
| Simcoe Muskoka District Health Unit, Cookstown Branch - 25 King St S, Immunization Clinic | Innisfil |
| Simcoe Muskoka District Health Unit, Cookstown Branch - 25 King St S, Parenting Support | Innisfil |
| Simcoe Muskoka District Health Unit, Cookstown Branch - 25 King St S, Prenatal Classes | Innisfil |
| Simcoe Muskoka District Health Unit, Cookstown Branch - 25 King St S | Cookstown |
| Simcoe Muskoka District Health Unit, Gravenhurst Branch - 5 Pineridge Gate, Dental Screening and Dental Clinics | Gravenhurst |
| Simcoe Muskoka District Health Unit, Innisfil - 967 Innisfil Beach Rd, Breastfeeding Place | Innisfil |
| Simcoe Muskoka District Health Unit, Midland Branch - Hugel Ave, Clinical Service | Midland |
| Simcoe Muskoka District Health Unit, Midland Branch - Hugel Ave, Community and Family Health Department | Midland |
| Simcoe Muskoka District Health Unit, Midland Branch - Hugel Ave, Environmental Health Department | Midland |
| Simcoe Muskoka District Health Unit, Midland Branch - Hugel Ave, Healthy Babies Healthy Children Program | Midland |
| Simcoe Muskoka District Health Unit, Midland Branch - Hugel Ave, Immunization Clinic | Midland |
| Simcoe Muskoka District Health Unit, Midland Branch - Hugel Ave, Parenting Support | Midland |
| Simcoe Muskoka District Health Unit, Midland Branch - Hugel Ave, Prenatal Classes | Midland |
| Simcoe Muskoka District Health Unit, Midland Branch - Hugel Ave, Sexual Health Counselling, Education and Clinic Services | Midland |
| Simcoe Muskoka District Health Unit, Midland Branch - Hugel Ave | |
| Simcoe Muskoka District Health Unit, Orillia Branch - 169 Front St S, Clinical Service | Orillia |
| Simcoe Muskoka District Health Unit, Orillia Branch - 169 Front St S, Community and Family Health Department | Orillia |
| Simcoe Muskoka District Health Unit, Orillia Branch - 169 Front St S, Environmental Health Department | Orillia |
| Simcoe Muskoka District Health Unit, Orillia Branch - 169 Front St S, Healthy Babies Healthy Children Program | Orillia |
| Simcoe Muskoka District Health Unit, Orillia Branch - 169 Front St S, Immunization Clinic | Orillia |
| Simcoe Muskoka District Health Unit, Orillia Branch - 169 Front St S, Parenting Support | Orillia |
| Simcoe Muskoka District Health Unit, Orillia Branch - 169 Front St S, Prenatal Classes | Orillia |
| Simcoe Muskoka District Health Unit, Orillia Branch - 169 Front St S, Sexual Health Counselling, Education and Clinic Services | Orillia |
| Simcoe Muskoka District Health Unit, Orillia Branch - 169 Front St S | Orillia |
| Simcoe Muskoka Family Connexions, Barrie Office, Child Welfare, Adoption and Foster Care Services | Barrie |
| Simcoe Muskoka Family Connexions, Barrie Office, Communications, Community Relations and Fundraising | Barrie |
| Simcoe Muskoka Family Connexions, Bracebridge Office, Child and Youth Mental Health Programs | Bracebridge |
| Simcoe Muskoka Family Connexions, Collingwood Office, Child Welfare, Adoption and Foster Care Services | Collingwood |
| Simcoe Muskoka Family Connexions, Huntsville Office, Child and Youth Mental Health Programs | Huntsville |
| Simcoe Muskoka Family Connexions, Huntsville Office, Muskoka Youth Justice Committee Program (YJC) | Huntsville |
| Simcoe Muskoka Family Connexions, Midland Office, Child Welfare, Adoption and Foster Care Services | Midland |
| Simcoe Muskoka Family Connexions, Orillia Office, Child Welfare, Adoption and Foster Care Services | Orillia |
| Simcoe Muskoka Opioid Strategy, Online / Web Service | Barrie |
| Simcoe Muskoka Regional Eating Disorder Program, Royal Victoria Regional Health Centre | Barrie |
| Simcoe Muskoka Skillforce, Barrie, Literacy and Basic Skills Support Organization | Barrie |
| Simcoe Muskoka Skillforce, Barrie, Simcoe Muskoka Local Board | Barrie |
| Simcoe North Provincial Liberal Association | Orillia |
| Simcoe Peer Support for Mental Health and Addictions | Collingwood |
| Simcoe Peer Support for Mental Health and Addictions, Collingwood | Collingwood |
| Simcoe Peer Support for Mental Health and Addictions, People Supporting People, Collingwood | Collingwood |
| Simcoe Rural Fastball League | Springwater |
| Simcoe Scale Modelers, Barrie - No Physical Address | Barrie |
| Simcoe Singers | Barrie |
| Simcoe Singers, Mailing Address | Barrie |
| Simcoe Terrace Retirement Centre, LOFT at Simcoe Terrace | Barrie |
| Simcoe Terrace Retirement Centre | Barrie |
| Simcoe Urban Native Housing | Barrie |
| Simcoe Urban Native Housing, Barrie, Rising SUN Women's Support Group | Barrie |
| Simcoe Urban Native Housing, Barrie | Barrie |
| Simcoe Village Apartments, Supportive Housing | New Tecumseth |
| Simcoe-Grey NDP Riding Association | Wasaga Beach |
| Simcoe-Grey Provincial Liberal Association | Collingwood |
| Simcoe-Grey Provincial Progressive Conservative (PC) Association | Wasaga Beach |
| Simcoside Lifepointe Church | Orillia |
| Simone Maroney Tutoring and Translation Service | Barrie |
| Sir Frederick Banting Legacy Foundation, Banting Homestead Heritage Park, Diabetes Management and Education Centre | New Tecumseth |
| Sistema Huronia Music Academy, Midland | Midland |
| Sixth Line Church | Clearview (Simcoe County) |
| Sixth Line Church, Christmas Assistance | Stayner |
| Sixth Line Church | Stayner |
| Sixth Line Church, Wild Life VBS FREE Summer Day Camp | Stayner |
| Skill Builders Physiotherapy & Rehabilitation Centre | Barrie |
| Slope to Shore Quilters' Guild | Wasaga Beach |
| Small Business Connect, No Physical Address | Barrie |
| Smiles4miles, Mobile Service, Mobile/Onsite Dental Hygiene Clinic | Aurora |
| Smith Psychological, Counselling / Psychotherapy and Psychological Assessment Services | Barrie |
| Snap Newspaper Group Inc, Midland - Mailing address, SNAPD Midland/Penetang | Midland |
| Sno Voyageur Club | Springwater |
| Snow Angels Central East, Online service | Collingwood |
| Sobeys Collingwood, Grocery Delivery | Collingwood |
| Social Benefits Tribunal | Toronto |
| Society of Saint Vincent de Paul, Barrie - Amelia St, St Mary's Conference | Barrie |
| Society of Saint Vincent de Paul, Barrie - Baldwin Lane, St John Vianney Conference | Barrie |
| Society of Saint Vincent de Paul, Barrie - Essa Rd, Holy Spirit Conference | Barrie |
| Society of Saint Vincent de Paul, VincenPaul Community Homes (VP Homes) | Barrie |
| Society of Saint Vincent de Paul - Guardian Angels Conference, Orillia, Christmas Baskets | Orillia |
| Society of Saint Vincent de Paul - Guardian Angels Conference, Orillia, Food Bank | Orillia |
| Society of Saint Vincent de Paul - Guardian Angels Conference, Vinnies Children's Clothing, Orillia | Orillia |
| Society of St Vincent de Paul | Collingwood |
| Society of St Vincent de Paul, Alliston, St Paul's Alliston Conference | Alliston |
| Society of St Vincent de Paul, Collingwood, St Mary's Conference | Collingwood |
| Society of St Vincent de Paul, Midland, St Margaret's Conference, Food Pantry | Midland |
| Society of St Vincent de Paul, Penetanguishene, St Ann's Conference | Penetanguishene |
| Society of St Vincent de Paul, Ste Mary's Conference, Post Secondary Educational Assistance Support Grant, Collingwood | Collingwood |
| Society of St Vincent de Paul, Victoria Harbour, St. Mary's Conference | Tay |
| Society of St. Vincent de Paul - St Patrick's / St Noel Chabanel Conference, Christmas Assistance, Wasaga Beach | Wasaga Beach |
| Society of St. Vincent de Paul - St Patrick's / St Noel Chabanel Conference, Wasaga Beach, St Patrick's Conference | Wasaga Beach |
| Solely Yours Mobile Foot Care, Mobile, Advanced Foot Care | Orillia |
| Sound Investment Community Choir | Collingwood |
| South Asian Association of Simcoe County | Barrie |
| South Georgian Bay Community Health Centre, Needle Exchange Program, Wasaga Beach | Wasaga Beach |
| South Georgian Bay Community Health Centre, Springwater, Springwater Health Services Centre | Springwater |
| South Georgian Bay Community Health Centre, Wasaga Beach, Community Programs | Wasaga Beach |
| South Georgian Bay Community Health Centre, Wasaga Beach, Health Care Services | Wasaga Beach |
| South Georgian Bay Community Health Centre, Wasaga Beach, Volunteer Opportunities | Wasaga Beach |
| South Georgian Bay Ontario Health Team, Collingwood - Huron St, Pap-a-Palooza, Cervical Cancer Screening Clinic | Collingwood |
| South Georgian Bay Ontario Health Team, Simcoe County Recreation and Social Activities Calendar | Collingwood |
| South Georgian Bay Ontario Health Team | Collingwood |
| South Georgian Bay Ontario Health Team, Wasaga Beach, Shoreline Health Clinic | Wasaga Beach |
| South Georgian Bay Ontario Health Team, Wasaga Beach, Single-Session Mental Health Counselling | Wasaga Beach |
| South Georgian Bay Ontario Health Team, Wasaga Beach, Wasaga Beach After Hours Clinic | Wasaga Beach |
| South Georgian Bay Small Business Enterprise Centre | Collingwood |
| South Georgian Bay Tourism, Collingwood | Collingwood |
| South River. Municipal Office, South River - Ottawa Ave, South River and Machar Fire Department | South River |
| South Simcoe Arts Council | New Tecumseth |
| South Simcoe Ball Hockey League | Barrie |
| South Simcoe Dufferin Track and Field Club | Barrie |
| South Simcoe Ladies Fast Pitch League, Simcoe County - No Physical Address | Simcoe |
| South Simcoe Medical Walk-in Clinic | Bradford West Gwillimbury |
| South Simcoe Police, Bradford - South Division | Bradford West Gwillimbury |
| South Simcoe Police, Innisfil - North Division | Innisfil |
| South Simcoe Rebel Rollers Roller Derby League | Orillia and area |
| South Simcoe Streams Network | New Tecumseth |
| South Simcoe Theatre (The), Cookstown Town Hall | Innisfil |
| Sparrow Lake Historical Society | Severn |
| Speak Freely Therapy Services | Barrie |
| Speaking of Wildlife | Severn |
| Special Olympics Ontario - Central Ontario, Barrie - No Physical Address, Special Olympics Ontario - Barrie Chapter | Barrie |
| Special Olympics Ontario - Central Ontario, Collingwood and District - Mailing Address, Special Olympics Ontario - Collingwood and District Chapter | Collingwood |
| Special Olympics Ontario - Central Ontario, Huronia - Mailing Address, Special Olympics Ontario - Huronia Chapter | Midland |
| Special Olympics Ontario - Central Ontario | Ontario |
| Special Olympics Ontario - Central Ontario, Orillia - No Physical Address, Special Olympics Ontario - Orillia Chapter | Orillia |
| Special Olympics Ontario - Central Ontario, South Simcoe - Mailing Address, Special Olympics Ontario - South Simcoe Chapter | New Tecumseth |
| Specialty Transportation By Park Place Plus, Mailing Address | New Tecumseth |
| Speech Clinic (The) | Barrie |
| Spinal Cord Injury Ontario [Central East], Barrie, Barrie Regional Office | Barrie |
| SPN Slo-Pitch | |
| SPN Slo-Pitch, Mailing Address, Indoor Winter Dome Slo-Pitch | Barrie |
| SPN Slo-Pitch, Mailing Address, Outdoor Slo-Pitch | Midhurst |
| Sport Dispute Resolution Centre of Canada, Ville-Marie, Canadian Sport Helpline | Québec |
| Springbrook Montessori Academy | Essa |
| Springwater Child Care Centre | Barrie |
| Springwater News | Elmvale |
| Springwater Township, Elmvale Branch, Public Library, Elmvale Branch | Springwater |
| Springwater Township, Grenfel Community Hall, Recreation Services - Grenfel Community Hall | Minesing |
| Springwater Township, Midhurst Branch, Public Library, Midhurst Branch | Springwater |
| Springwater Township, Minesing - Township of Springwater Administration Centre, Municipal Office | Springwater |
| Springwater Township, Minesing Branch, Public Library, Minesing Branch | Springwater |
| Springwater Township, No physical address, Rest Stations for Extreme Weather Relief | |
| Springwater Township, Public Library - Summer Programs & Story Time, Midhurst Branch | Springwater |
| Springwater Township, Recreation Services, Minesing - Township of Springwater Administration Centre | Springwater |
| Springwater-Elmvale Farmers' Market | Springwater |
| St Andrew Anglican Church, Alliston, Alliston, St Andrews Anglican Church | New Tecumseth |
| St Andrew's Presbyterian Church, Barrie | Barrie |
| St Andrew's Presbyterian Church, Orillia and Area Seniors' Centre, Orillia | Orillia |
| St Andrew's Presbyterian Church, Orillia | Orillia |
| St Andrew's Society of Simcoe County, Mailing Address | Barrie |
| St Athanasius Anglican Church | Orillia |
| St David's Anglican Lutheran Church, Free Community Christmas Breakfast, Orillia | Orillia |
| St David's Anglican Lutheran Church, Orillia | Orillia |
| St George's Quilters | Barrie |
| St James Anglican Church Orillia, Orillia, Free Community Breakfast | Orillia |
| St James Anglican Church Orillia, Orillia, Loonie Lunch | Orillia |
| St James Anglican Church Orillia, Pennywise Shop, Orillia | Orillia |
| St James Court Nonprofit Housing | Orillia |
| St John Ambulance, Barrie Simcoe Muskoka, Babysitting and Home Alone Courses | Barrie |
| St John Ambulance, Barrie Simcoe Muskoka, Car Seat Education | Barrie |
| St John Ambulance, Barrie Simcoe Muskoka, First Aid Training | Barrie |
| St John Ambulance, Barrie Simcoe Muskoka, St John Fellowship | Barrie |
| St John Ambulance, Barrie Simcoe Muskoka, Therapy Dog Program | Barrie |
| St John Ambulance, Barrie Simcoe Muskoka, Youth Programs | Barrie |
| St John Ambulance Therapy Dogs, New Tecumseth 1169 Branch | New Tecumseth |
| St John the Evangelist Catholic Church, Waubaushene | Tay |
| St John Vianney Church, Parish Outreach to Seniors | Barrie |
| St John Vianney Church, Youth / Children's Groups | Barrie |
| St John's Anglican Church, Cookstown | Innisfil |
| St John's Presbyterian Church, Bradford | Bradford West Gwillimbury |
| St John's United Church, Alliston | New Tecumseth |
| St Joseph Roman Catholic Chapel, CFB Borden | Adjala-Tosorontio |
| St Luke's Anglican Church | Clearview (Simcoe County) |
| St Luke's Anglican Church, Christmas Assistance, Creemore | Clearview (Simcoe County) |
| St Luke's Anglican Church, Creemore, Creemore Food Bank | Clearview (Simcoe County) |
| St Luke's Anglican Church, Creemore | Clearview (Simcoe County) |
| St Margaret's Catholic Church, Midland | Midland |
| St Mary's Catholic Cemetery, Barrie | Barrie |
| St Mary's Roman Catholic Church, Barrie, Bereavement Support Program | Barrie |
| St Noel Chabanel Catholic Mission Church, Wasaga Beach | Wasaga Beach |
| St Paul the Apostle Catholic Church, Alliston | New Tecumseth |
| St Paul's Anglican Church, Barrie | Barrie |
| St Paul's United Church, Outreach and Community Support, Midland | Midland |
| St Thomas Anglican Church, Shanty Bay | |
| St. Mark's Presbyterian Church, St Mark's Presbyterian Church | Orillia |
| Stackhouse Chiropractic Health Clinic | Collingwood |
| Stanhope Museum | Minden Hills |
| Stayner Farmers Market, Music Market & Park It | Stayner |
| Stayner Figure Skating Club | Clearview (Simcoe County) |
| Stayner Granite Club, Stayner Curling Club, Stayner Curling Centre | Clearview (Simcoe County) |
| Stayner Heritage Society | Clearview (Simcoe County) |
| Stayner Horticultural Society | Clearview (Simcoe County) |
| Stayner Lawn Bowling Club | Clearview (Simcoe County) |
| Stayner Physiotherapy and Massage Therapy | Clearview (Simcoe County) |
| Stayner Senior Citizens Friendship Club | Clearview (Simcoe County) |
| Stayner Siskins | Clearview (Simcoe County) |
| Stellar Montessori School, Oxford St, Child Care | Orillia |
| STEM Camp, Barrie | Barrie |
| Step Ahead Nursing Foot Care | New Tecumseth |
| Stephen Lewis Foundation, No physical address, Grandmothers Campaign | Midland |
| Stepping Stones Childcare Learning Centre | Wasaga Beach |
| Stepping Stones, Speech & Language Services, Angus | Essa |
| Stevenson Memorial Hospital, Obstetrics | New Tecumseth |
| Stevenson Memorial Hospital, Mary McGill Community Mental Health Program | New Tecumseth |
| Stevenson Memorial Hospital | New Tecumseth |
| Story Book Meadows, Equine Assisted Learning and Life Coaching Programs | Adjala-Tosorontio |
| Storytelling Orillia | Orillia |
| Street Cats Rescue | Barrie |
| Stroke Recovery Association Barrie and District | Barrie |
| Stronger Together | Wasaga Beach |
| Stuff | Barrie |
| Stuff, Barrie - 44 Dunlop St E, Downtown Thrift Store | Barrie |
| Stuff, Barrie - 525 Bryne Dr, South End Thrift Store | Barrie |
| Sunday Night Co-ed Slo Pitch League, Barrie - Mailing Address | Springwater |
| Supervised Access for Everyone (S.A.F.E.) Collingwood | Collingwood |