| | Organization Name(s) | Located In |
 | Faethorne Place Housing Co-op | Sarnia |
 | Faethorne Place Housing Co-op | Sarnia |
 | Fairfield Museum, Bothwell | Bothwell |
 | Fairfield Park, Long-Term Care Facility, Wallaceburg | Wallaceburg |
 | FairHavens Baptist Church | Sarnia |
 | Fairview Amish School | Norwich |
 | Fairwinds Lodge | Sarnia |
 | Fairwinds Lodge | Sarnia |
 | Fairwind's Lodge | Sarnia |
 | Faith Baptist Church, Wallaceburg | Wallaceburg |
 | Faith Day Nursery | London |
 | Faith Mennonite Church | Leamington (Town of) |
 | Faith World Outreach | Windsor Central |
| | Falun Dafa Association of Canada, Windsor Chapter | Windsor |
 | Families First Community Action Program for Children (CAPC) Westminster | London |
 | Family & Children's Services of St Thomas and Elgin County | St Thomas |
 | Family Care Medical Clinic | Windsor East |
 | Family Centre (The) | Wallaceburg |
| | Family Connections, Grandparent Rights | Tecumseh |
| | Family Counselling Centre | Sarnia |
 | Family Counselling Centre, Distress Line | Sarnia |
 | Family Counselling Centre, Family Court Support Worker Program; FCSWP, Partner Assault Response | Sarnia |
 | Family Law Information Centre - Elgin County | St Thomas |
 | Family Law Information Centre - London and Middlesex County | London |
 | Family Mediation Centre (The) | London |
 | Family Respite Services, Windsor-Essex | Windsor East |
 | Family Respite Services, Windsor-Essex, Respite Residence, Weekend With Friends - Howard | Windsor South |
 | Family Service Kent, Chatham | Chatham |
 | Family Service Kent, Counselling services, CHAP Program - Community Home-Support Assisting People | Chatham |
| | Family Service Kent, Credit Counselling Program | Chatham-Kent |
 | Family Service Thames Valley | London |
 | Family Service Thames Valley, Community Counselling Program | London |
 | Family Service Thames Valley, Community Integration Program (CIP)/Family Support Worker | London |
 | Family Service Thames Valley, Credit Counselling | London |
 | Family Service Thames Valley, Family Service Employee and Family Assistance Program (FSEAP) | London |
 | Family Service Thames Valley, Group Counselling | London |
 | Family Service Thames Valley, mindyourmind | London |
 | Family Service Thames Valley, Muslim Family Support Service | London |
 | Family Service Thames Valley, Sexual Abuse Services Program - London Region | London |
 | Family Service Thames Valley, Sexual Abuse Services Program - Middlesex Region | Strathroy |
 | Family Services Windsor-Essex | Windsor Central |
 | Family Services Windsor-Essex | Windsor Central |
 | Family Services Windsor-Essex, Advocacy, Planning and Support Worker | Windsor Central |
 | Family Services Windsor-Essex, Community Counselling Alliance, Walk-In Counselling Clinic | Windsor |
 | Family Services Windsor-Essex, Counselling Services | Windsor Central |
 | Family Services Windsor-Essex, Elder Abuse Response Program | Windsor Central |
 | Family Services Windsor-Essex, Matching Program | Windsor Central |
 | Family Services Windsor-Essex, Short Term Advocacy Program | Windsor Central |
 | Family Services Windsor-Essex, St Clair College Paralegal Students Form Clinics | Windsor |
 | Family Services Windsor-Essex, St Clair College Paralegal Students Form Clinics, Community Legal Assistance | Windsor Central |
| | Family Services Windsor-Essex, St Clair College Paralegal Students Form Clinics, Windsor-Essex Bilingual Legal Clinic | Windsor Central |
 | Family Services Windsor-Essex, Training Program | Windsor Central |
 | Family Services Windsor-Essex, Year-Round Income Tax Clinic | Windsor Central |
 | Family Support and Resource Network, Chatham | Chatham |
 | FamilyInfo.ca | London |
 | Fanshawe College | London |
 | Fanshawe College, Adult Upgrading Program - Pre-College Preparation and Academic and Career Entrance Program | London |
 | Fanshawe College, Community Employment Services, Ontario Employment Services | London |
 | Fanshawe College, Community Employment Services, Ontario Employment Services, Citi Plaza - Ontario Employment Services | London |
 | Fanshawe College, Community Employment Services, Ontario Employment Services, Gateway for International Professionals | London |
 | Fanshawe College, Community Employment Services, Ontario Employment Services, Gateway for International Professionals, Bridging for Internationally Educated Nurses (BIEN) | London |
 | Fanshawe College, Community Fitness Centre | London |
 | Fanshawe College, Continuing Education | London |
 | Fanshawe College, Counselling and Accessibility Services | London |
 | Fanshawe College, Counselling and Accessibility Services, Sharing Shop | London |
 | Fanshawe College, First Nations Centre | London |
 | Fanshawe College, Gateway for International Professionals | London |
 | Fanshawe College, Off-Campus Housing Listings | London |
 | Fanshawe College, St Thomas/Elgin Campus | London |
 | Fanshawe College, St Thomas/Elgin Campus, Adult Upgrading Program (Literacy & Basic Skills) | London |
 | Fanshawe College, Tillsonburg Campus | Tillsonburg |
 | Fanshawe College, Tillsonburg Campus, Academic Career Entrance | Tillsonburg |
 | Fanshawe College, Woodstock Campus | Woodstock |
 | Fanshawe College, Woodstock Campus, Academic Career Entrance | Woodstock |
 | Farm Credit Canada | Woodstock |
 | Farm Safety Association, Oxford County | Embro |
| | FASlink Fetal Alcohol Disorders Society | Bright's Grove |
| | Federal Superannuates National Association, Bluewater | Sarnia |
 | Federation des femmes Canadienne Francais, Section de l'Annonciation/Pointe-aux-Roches | Stoney Point |
| | Fee for Service Meals - Chatham-Kent, Meals on Wheels | Chatham-Kent |
 | Feige Denture Clinics | Sarnia |
| | Femaide, Ligne de soutien pour femmes victimes de violence | Toronto |
 | Festival Gardens Senior Apartments | St Thomas |
 | FGT Family Church | Leamington (Town of) |
 | Fibromyalgia Society of Ontario, Windsor Chapter | Windsor |
| | Fiddick's, Retirement Home and Nursing Home Ltd. | Petrolia |
| | Fiddick's Nursing and Retirement Home Limited | Petrolia |
 | Fiddick's Nursing and Retirement Home Limited | Petrolia |
 | Fifty Plus Housing Co-operative of London, Ontario Inc | London |
| | Filipino Canadian Association of London and District | London |
| | Filipino Canadian Community of Chatham-Kent | Chatham |
| | Finance Department, City of Sarnia, Brian McKay - Director | Sarnia |
| | Financial Fitness | Sarnia |
 | Financial Fitness Centre | Sarnia |
 | Financial Fitness Centre | Windsor Central |
 | Financial Fitness Centre, Amherstburg Satellite | Amherstburg (Town of) |
 | Financial Fitness Centre, Leamington Satellite | Leamington (Town of) |
| | Finchgate Apartments, County of Lambton. Housing Services Department. Sarnia | Sarnia |
 | Findleys Driver Education Services | Sarnia |
| | Firefighters Association of Petrolia | Petrolia |
 | First Baptist Church | Chatham |
 | First Baptist Church, Kingsville | Kingsville (Town of) |
 | First Baptist Church, Leamington | Leamington (Town of) |
 | First Baptist Church, Wallaceburg | Wallaceburg |
 | First Baptist Church - Petrolia | Petrolia |
 | First Baptist Church Ingersoll, Lunch with Us | Ingersoll |
 | First Baptist Church of Windsor | Windsor Central |
 | First Baptist Church Tillsonburg, First Baptist Weekday Nursery | Tillsonburg |
 | First Baptist Church Woodstock, Adelaide Soup Bowl | Woodstock |
 | First Christian Reformed Church | Sarnia |
 | First Christian Reformed Church | Chatham |
 | First Church of Christ Scientist, Windsor | Windsor Central |
 | First Lutheran Church, Kingsville | Kingsville |
 | First Lutheran Church Canada | Windsor Central |
 | First Presbyterian Church | Chatham |
 | First Reformed Church | Chatham |
 | First Regular Baptist Church, Dresden | Dresden |
 | First St Andrew's United Church - Hospitality Meal | London |
 | First Steps Child Care Centre, Tecumseh Site | Tecumseh (Town of) |
 | Fishers of Men, Blenheim | Blenheim |
 | Fletcher United Church | Merlin |
 | Fletcher United Church Womens' Group, Fletcher | Merlin |
 | FlightExec | London |
 | FLK - Taoist Tai Chi - Sarnia Branch | Sarnia |
 | FLK - Taoist Tai Chi™, Woodstock | Woodstock |
 | Focus Fairview Community Centre | St Thomas |
 | Food Bank, Contact House | Forest |
 | Food Bank, Petrolia | Petrolia |
| | Food Banks, Chatham- Kent | Chatham-Kent |
| | Food Matters Windsor-Essex County | Windsor Central |
 | Foot Care Centre | Sarnia |
| | For Men Only, Emotional Support Group | Windsor |
| | Ford City Business Improvement Association | Windsor East |
| | Forest & District Agricultural Society | Forest |
 | Forest Baptist Church | Forest |
| | Forest BIA | Forest |
| | Forest Business Improvement Association | Forest |
 | Forest City Centre for Occupational Health | London |
| | Forest City Involved Fathers | London |
 | Forest City Occupational Therapy | London |
| | Forest EMS Base, County of Lambton | Forest |
| | Forest Farm & Artisan Market | |
| | Forest Market | Sarnia |
 | Forest United Church | Forest |
 | Forest View Villa | Forest |
 | Forestview Villa, County of Lambton. Housing Services Department. Forest | Forest |
 | Forgotten Harvest Canada, Forgotten Harvest Ontario, Windsor-Essex County | Windsor Central |
 | Forward House of London | London |
 | Foundation of Chatham-Kent Health Alliance | Chatham |
 | Four Counties Family Health Team | Newbury |
 | Four Counties Health Services | Newbury |
 | Four Counties Health Services | Newbury |
 | Four Counties Health Services, Ambulatory Care Clinics | Newbury |
 | Four Counties Health Services, Community Support Services | Newbury |
 | Four Counties Health Services, Community Support Services, Adult Day Away Program | Newbury |
 | Four Counties Health Services, Community Support Services, Alzheimer's Day Away Program | Newbury |
 | Four Counties Health Services, Community Support Services, Four Counties Community Transit System | Newbury |
 | Four Counties Health Services, Community Support Services, Four Counties Community Villa | Newbury |
 | Four Counties Health Services, Diabetes Education Program | Newbury |
 | Four Counties Health Services, Diagnostic Imaging Services | Newbury |
 | Four Counties Health Services, Emergency Department | Newbury |
 | Four Counties Health Services, Laboratory Services | Newbury |
 | Fourth Line United Church | Blenheim |
 | Fowler Kennedy Sport Medicine Clinic | London |
 | Franco-Sol Garderie et centre de ressources, École George P. Vanier | Windsor East |
 | Franco-Sol Garderie et centre de ressources, École Mgr Jean Noël | Windsor West |
 | Franco-Sol Garderie et centre de ressources, École Monseigneur Augustin Caron | LaSalle |
 | Franco-Sol Garderie et centre de ressources, École Pavillon des jeunes | Emeryville |
 | Franco-Sol Garderie et centre de ressources, École St Antoine | Tecumseh |
 | Franco-Sol Garderie et centre de ressources, École St Edmond | Windsor South |
 | Franco-Sol Garderie et centre de ressources, École St Jean Baptiste | Amherstburg |
 | Franco-Sol Garderie et centre de ressources, École St Michel | Leamington (Town of) |
 | Franco-Sol Garderie et centre de ressources, École Ste Marguerite d'Youville | Tecumseh |
 | Franco-Sol Garderie et centre de ressources, École Ste Thérèse | Windsor East |
 | Fraternal Order of Eagles | Sarnia |
 | Free CA Tax Clinics 2013 (for 2012 taxation year), co-sponsored by Institute of Chartered Accountants of Ontario, and Union Gas, Chatham-Kent | Chatham |
 | Free Reformed Church | Chatham |
 | Freemasons, Highgate Lodge no. 336, A.F.& A.M., G.R.C. | Highgate |
 | French Cultural Centre | Sarnia |
| | French Heritage Club | Stoney Point |
| | French Womens Federation of Ontario, St Joachim - Stoney Point - Comber | St Joachim |
 | Fresh Start Maternity Supports | St Thomas |
 | Fresh Start Maternity Supports, Pregnancy Support Centre and Support Housing Program | St Thomas |
| | Freshen Up Shower Ministry, River City Vineyard | Sarnia |
 | FRIENDS, Families Relating Ideas, Emotions, and News on Downs Syndrome | Wallaceburg |
 | Friends of Fort Malden | Amherstburg |
| | Friends of Greater Comber | Comber |
| | Friends of Pittock | Woodstock |
 | Friends of Point Pelee | Leamington |
 | Friends of Rondeau Park (The) | Chatham-Kent |
 | Friends of the Chatham Pipes and Drums | Chatham |
 | Friends of the Court (The), Mackenzie Hall | Windsor West |
 | Friendship Cooperative Playschool | Woodstock |
 | Friendship Group | Sarnia |
 | Friendship House | Sarnia |
 | Full Circle Thrift Shop | Harrow |
| | Full Gospel Businessman's Fellowship International | Sarnia |
 | Fung Loy Kok - Taoist Tai Chi, Windsor / Essex County, Windsor Branch | Windsor Central |
 | Fung Loy Kok Taoist Tai Chi of Canada - London Branch | London |
 | Fusion Youth Activity and Technology Centre | Ingersoll |