| Ladies Marathon Bridge Club of Oakville | Oakville |
| Lakeshore Woods Medical Clinic | Oakville |
| Lakeshore Woods Pharmacy | Oakville |
| LakeviewFoot Care, Mobile Foot Care | Mississauga |
| Lama Yeshe Ling Tibetan Buddhist Group, Burlington, Meditation Classes, Buddhist Philosophy and Prayer Services | Burlington |
| Landlord and Tenant Board | Toronto |
| Landlord's Self Help Centre | Toronto |
| Lao Association of Ontario | Toronto |
| LaSalle Park Community Marina | Burlington |
| LaSalle Park Retirement Community | Burlington |
| Last Post Fund - Toronto | Toronto |
| Laurier Medical and Walk In Clinic | Milton |
| Law Society of Ontario, Law Society Referral Service, Toronto | Toronto |
| Lawson Park Family Tennis Club | Oakville |
| Legal Aid Ontario, Legal Aid Ontario, Provincial Head Office | Toronto |
| Legal Line | Toronto |
| Leon Pharmacy, Pharmacy Services | Oakville |
| Leukemia and Lymphoma Society of Canada, Ontario Region, First Connection Caregiver Support Program | North York East |
| Lifecare Rx Pharmacy & Specialty Compounding Centre | Oakville |
| LifeChurch | Burlington |
| LifeLabs, Oakville - Trafalgar Rd, Medical Laboratory Services | Oakville |
| LifeLabs, Oakville - Speers Rd W, Medical Laboratory Services | Oakville |
| LifeLabs, Oakville - Rebecca St, Medical Laboratory Services | Oakville |
| LifeLabs, Oakville - River Glen Blvd, Medical Laboratory Services | Oakville |
| LifeLabs, Milton - Commercial St, Medical Laboratory Services | Milton |
| LifeLabs, Milton - Bronte St S, Medical Laboratory Services | Milton |
| LifeLabs, Georgetown - Sinclair Ave, Medical Laboratory Services | Halton Hills |
| LifeLabs, Georgetown - Hillside Dr, Medical Laboratory Services | Halton Hills |
| LifeLabs, Oakville - Hospital Gate, Medical Laboratory Services | Oakville |
| LifeLabs, Colorectal Cancer Screening | Mississauga |
| Lifemark - pt Health, Trafalgar Physiotherapy | Oakville |
| Lifemark Physiotherapy Burlington Advance, Physiotherapy Services | Burlington |
| Lifemark Physiotherapy Burlington Brant, Physiotherapy Services | Burlington |
| Lifemark Seniors Wellness, Halton and Peel Locations, Exercise and Falls Prevention and Osteoporosis Program | Mississauga |
| Limehouse Presbyterian Church | Halton Hills |
| Links2Care, Oakville - Head Office, Care at Home for Seniors and Adults with Disabilities | Oakville |
| Links2Care, Acton - Lakeview Villa, Supportive Housing | Acton |
| Links2Care, Acton Community Hub, Care at Home for Seniors and Adults with Disabilities | Acton |
| Links2Care, Care In The Community - Community Volunteer Income Tax Program | Georgetown |
| Links2Care, Georgetown Community Hub, Care at Home for Seniors and Adults with Disabilities | Halton Hills |
| Links2Care, Meals Programs - Congregate Dining | Halton Hills |
| Links2Care, Meals Programs - Hot and Frozen Meals | Halton Hills |
| Links2Care, Bathing Assistance | Oakville |
| Links2Care, Community Navigation | Oakville |
| Links2Care, Home Help | Oakville |
| Links2Care, Home Maintenance and Repair | Oakville |
| Links2Care, Relief for Caregivers | Oakville |
| Links2Care, Social Connection - Friendly Visiting and Calling | Halton Region |
| Links2Care, Shop Assist | Halton Hills |
| Lions Foundation of Canada Dog Guides, Dog Guide Programs | Oakville |
| Live Life Well Care Services, In Home Care Services | Burlington |
| Liver Canada | Markham |
| LiveYoung Mediclinic, Family Practice and Walk-in Clinic | Milton |
| Living Hope Church Georgetown | Georgetown |
| Livita Retirement Residences, Oakville, Queens Avenue Retirement Residence | Oakville |
| LMC Diabetes and Endocrinology, Oakville, Diabetes and Endocrinology | Oakville |
| LMC Diabetes and Endocrinology, Oakville, LMC Footcare Clinic - Chiropody Services | Oakville |
| LMC Pharmacy, Pharmacy Services | Oakville |
| Loblaw Pharmacy, Georgetown, Pharmacy Services | Halton Hills |
| Loblaw Pharmacy, Milton, Pharmacy Services | Milton |
| Loblaw Pharmacy, Oakville - Oak Walk Dr, Pharmacy Services | Oakville |
| Loblaw Pharmacy, Oakville - Dundas St W (Fortinos), Pharmacy Services | Oakville |
| Local Transit and Bus Services in Halton Region | Halton Region |
| Lowville United Church | Burlington (Lowville) |
| Lung Health Foundation | North York East |
| Lymphedema Association of Ontario | Etobicoke South |
