| Facile: Independent Facilitation Perth, Facile Perth | Stratford |
| Faith Evangelical Missionary Church, Wasaga Beach | Wasaga Beach |
| Faith Fellowship, Food and Clothing Bank | Mono |
| Faith Lutheran Church | Chatsworth |
| Faith Lutheran Church Port Elgin - ELCIC | Saugeen Shores |
| Falstaff Family Centre | Stratford |
| Family & Elder, Community Work Place Mediation Services, No Physical Address, Family Mediation - Judith Denault | |
| Family First Play Therapy Centre | Barrie |
| Family Law Information Centre (FLIC), Cobourg, Family Law Information Centre | Cobourg |
| Family Law Information Centre (FLIC), Lindsay, Family Law Information Centre | Kawartha Lakes |
| Family Law Information Centre (FLIC), Peterborough, Family Law Information Centre | Peterborough |
| Family Mental Health Initiative of Simcoe County | Barrie |
| Family Services Perth-Huron, Adult Protective Services, Stratford | Stratford |
| Family Services Perth-Huron, Building Resiliency with Developmental Services Clients, Stratford | Stratford |
| Family Services Perth-Huron, Clinton, Adult Protective Services | Central Huron |
| Family Services Perth-Huron, Stratford | Stratford |
| Family Services Perth-Huron, Listowel, Familyhome Program | North Perth |
| Family Services Perth-Huron, Stratford - Avondale United Church, Seniors Connection & Support Group | Stratford |
| Family Services Perth-Huron, Stratford - Rotary Respite House, Respite Program | Stratford |
| Family Services Perth-Huron, Stratford, Connecting Seniors | Stratford |
| Family Services Perth-Huron, Stratford, Counselling Services | Stratford |
| Family Services Perth-Huron, Stratford, Employee Assistance Program | Stratford |
| Family Services Perth-Huron, Stratford, Family Support - Case Management | Stratford |
| Family Services Perth-Huron, Stratford, Foundations Initiative | Stratford |
| Family Services Perth-Huron, Stratford, Special Services at Home | Stratford |
| Family Services Perth-Huron, Stratford, Violence Against Women Program | Stratford |
| Family Transition Place | Orangeville |
| Family Transition Place, Emergency Shelter and Programs | Orangeville |
| Family Transition Place, Family Court Support Worker | Orangeville |
| Family Transition Place, Support Within Housing Program | Orangeville |
| Family Transition Place, Individual and Group Counselling Services | Orangeville |
| Farley Foundation | Milton |
| Farm Credit Canada, Clinton Office | Central Huron |
| Farm Credit Canada, Listowel Office | North Perth |
| Farm Credit Canada, Stratford Office | Stratford |
| Farm Credit Canada, Thornton | Essa |
| Farm View newspaper, Farm View | Minesing |
| FAS World Barrie, Barrie Fetal Alcohol Support Group | Barrie |
| Federated Women's Institute of Ontario, Windermere, Windermere Women's Institute | Muskoka Lakes Township |
| Federated Women's Institutes of Ontario, Mailing Address, Simcoe South Kempenfeldt District | Ontario |
| Federated Women's Institutes of Ontario, Meeting Location, Simcoe Area | Minesing |
| Feet For Life Medical Foot Care | Barrie |
| Feline Friends Network, Mailing Address | Stratford |
| Fellowship Baptist Church Collingwood, Clearview, Fellowship Baptist Church | Collingwood |
| Fellowship Christian Reformed Church | Brighton (Municipality of) |
| Fellowship Heights | Orillia |
| Fellowship Towers | Orillia |
| Fellowship Villa | Orillia |
| Fem'aide : Francophone helpline for women affected by violence | Ontario |
| Fenelon Community Health Centre Laboratory | Kawartha Lakes |
| Ferndale Bible Church, DivorceCare | Peterborough |
| Ferndale Bible Church | Peterborough |
| Ferndale Bible Church, GriefShare | Peterborough |
| Ferris Lane Community Daycare, Barrie | Barrie |
| Festival City Co-operative Homes | Stratford |
| Festival Hydro Inc. | Stratford |
| Festival School of Hairstyling | Stratford |
| Festival Sounds Chorus | Stratford |
| Feversham and District Kinsmen Club | Grey Highlands |
| Fiddlehead Care Farm | Mono |
| Fierté Simcoe Pride | Barrie |
| Filipino-Canadian Association of Barrie and Suburban Areas | Barrie |
| Financial Assistance Partners Group, Bracebridge | Bracebridge |
| Find a Registered Assistive Devices Vendor, Online Service | |
| Firearm Safety Education Service of Ontario, Mailing Address | Orillia |
| Firebird Community Cycle | Barrie |
| First Baptist Church, Goderich | Goderich |
| First Baptist Church, Thornbury | Blue Mountains |
| First Christian Reformed Church, Barrie | Barrie |
| First Line Security, Mailing Address | Brockton |
| First Presbyterian Church, Collingwood | Collingwood |
| First Presbyterian Church, Community Dinners, Collingwood | Collingwood |
| First Step Medical Clinic, Peterborough | Peterborough |
| First Student Canada, Owen Sound, First Student Owen Sound | Owen Sound |
| First Student Canada, Wheelchair Accessible Bus, Owen Sound | Owen Sound |
| Fittons IDA Pharmacy, Community Pharmacy and Opiate Addiction Treatment | Orillia |
| Five Counties Children's Centre, Campbellford, Campbellford Office | Trent Hills |
| Five Counties Children's Centre, Cobourg, Cobourg Office | Cobourg |
| Five Counties Children's Centre, Lindsay, City of Kawartha Lakes Office | Kawartha Lakes |
| Five Counties Children's Centre, Minden, Haliburton County Office | Minden Hills |
| Five Counties Children's Centre, Peterborough - Dr Mary Thain Site, Headquarters - Services Peterborough & Area | Peterborough |
| Fleming College, Cobourg - William St, LINC | Cobourg |
| Fleming College, Fleming Skills on Demand - Literacy and Basic Skills, Cobourg - William St | Cobourg |
| Fleming College, Haliburton - College Dr, Haliburton School of Art + Design | Haliburton |
| Fleming College, Haliburton - Fleming C.R.E.W. Employment Centre, Fleming Skills on Demand - Literacy and Basic Skills | Haliburton |
| Fleming College, Haliburton - Fleming C.R.E.W. Employment Centre, Integrated Employment Services | Haliburton |
| Fleming College, Lindsay - Frost Campus, Fleming Skills on Demand - Literacy and Basic Skills | Kawartha Lakes |
| Fleming College, Peterborough - Brealey Dr, Counselling and Learning Support Services | Peterborough |
| Fleming College, Peterborough - Brealey Dr, Sutherland Campus | Peterborough |
| Fleming College, Peterborough - George St N, Canada-Ontario Job Grant | Peterborough |
| Fleming College, Peterborough - George St N, Fleming Skills on Demand - Literacy and Basic Skills | Peterborough |
| Fleming College Student Administrative Council, Peterborough - Brealey Dr | Peterborough |
| Flesherton and Community Food Bank | Flesherton |
| Flesherton Community Love Committee, Christmas Assistance | Grey Highlands |
| Flesherton Pharmacy | Flesherton |
| Flixbus | Collingwood |
| FOCUS Employment Services, FOCUS Employment Services - Alliston, Integrated Employment Services | New Tecumseth |
| FOCUS Employment Services, FOCUS Employment Services - Angus, Focus Community Development Corporation | Angus |
| FOCUS Employment Services, Ontario Employment Services, Angus | Angus |
| Foley Agricultural Society, Foley Agricultural Society and Thrift Store | Seguin |
| Food Addicts In Recovery Anonymous, Orillia - No Physical Address | Orillia |
| Food For Kids City of Kawartha Lakes, No physical address | Kawartha Lakes |
| Food In Simcoe County, Online Service | Simcoe |
| Food Not Bombs | Peterborough |
| Food4Kids Muskoka, Muskoka | |
| Foodland, St Marys, Grocery Delivery | St Marys |
| Foodland, Stratford, Grocery Delivery | Stratford |
| Foodland, Wingham - David St, Grocery Delivery | North Huron |
| Foodland Exeter, Exeter, Grocery Store | South Huron |
| Foodland Penetanguishene, Penetanguishene, Home Delivery Service | Penetanguishene |
| Foodtown, Milverton, Grocery Delivery | Perth East |
| Forest and the Trees Counselling Services, Wilgress(Ruth) Psychotherapist, Certified Play Therapist, Expressive Arts Therapist | Gravenhurst |
| Foundation for Education Perth Huron, Foundation for Education | Huron East |
| Four Counties Addiction Services Team, Campbellford - Oliver Rd, Campbellford Office | Trent Hills |
| Four Counties Addiction Services Team, Cobourg - Elgin St W, Cobourg Office | Cobourg |
| Four Counties Addiction Services Team, Community Treatment, Peterborough Office | Peterborough |
| Four Counties Addiction Services Team, Community Withdrawal Management, Peterborough Office | Peterborough |
| Four Counties Addiction Services Team, Housing Programs, Peterborough Office | Peterborough |
| Four Counties Addiction Services Team, Lindsay - Lindsay St S, Lindsay Office | Lindsay |
| Four Counties Addiction Services Team, Minden - IGA Rd, Minden Office | Minden Hills |
| Four Counties Addiction Services Team, Peterborough Office | Peterborough |
| Four Counties Family Mediation | Peterborough |
| Four County Labour Market Planning Board, Huron Perth, Stratford-Bruce Peninsula Economic Region Workforce Board | Brockton |
| Fowlers Corners and District Lions Club | Kawartha Lakes |
| Fragile X Research Foundation of Canada | Brampton |
| Free Spirit Gardens, Collingwood, Community Gardens | Collingwood |
| Free Stuff 4 Daily Needs | Gravenhurst |
| Fresh 93.1, CHAY-FM | Midhurst |
| Friend and Company, Huntsville - No physical address | Huntsville |
| Friendly Wendy Senior Services | Barrie |
| Friends (The), Community and Health Care Services, District of Muskoka, District of Muskoka | Gravenhurst |
| 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 |
| Friends of Ferris Park | Trent Hills |
| Friends of Muskoka Midwives, Bracebridge | Bracebridge |
| Friends of Penetanguishene Centennial Museum | Penetanguishene |
| Friends of Presqu'ile Park | Brighton (Municipality of) |
| Friends of the Community Food Bank and Resource Centre, Clinton - Rattenbury St E | Clinton |
| Friends of the Midland Public Library, Midland Public Library, The Book Cellar | Midland |
| Friends of the Nancy Island Historic Site and Wasaga Beach Park | Wasaga Beach |
| Friendship Force Lake Simcoe | Simcoe County |
| Friendship Force of Stratford and St Marys | Stratford |
| Friendship Ministries, Kincardine Friendship Group | Kincardine |
| Full Circle Lactation Services | Barrie |
| Fullarton Minor Fastball | West Perth |
| Fung Loy Kok Institute of Taoism, Fung Loy Kok Taoist Tai Chi ®, Taoist Tai Chi ® | Stratford |
| Fung Loy Kok Institute of Taoism, Mailing Address, Barrie and Orillia Branch | Barrie |
| Furry Friends Animal Shelter, Barrie | Barrie |
| Future Skills Centre | Toronto |