| Lakefield Community Food Bank | Selwyn Township |
| Lakefield Golden Years Club | Selwyn Township |
| Lakefield Historical Society, Lakefield Historical Society | Lakefield |
| Lakefield Physiotherapy and Foot Health Clinic | Lakefield |
| Lakelands Public Health, Peterborough - King St, Administration | Peterborough |
| Lakelands Public Health, Peterborough - King St, Community Dental Health Clinic - Ontario Seniors Dental Care Program | Peterborough |
| Lakelands Public Health, Peterborough - King St, Community Dental Health Clinic | Peterborough |
| Lakelands Public Health, Peterborough - King St, Eating and Nutrition | Peterborough |
| Lakelands Public Health, Peterborough - King St, Food for Kids Student Nutrition Programs Peterborough and County | Peterborough |
| Lakelands Public Health, Peterborough - King St, Food Safety | Peterborough |
| Lakelands Public Health, Peterborough - King St, Health Hazard Prevention and Management | Peterborough |
| Lakelands Public Health, Peterborough - King St, Healthy Babies, Healthy Children | Peterborough |
| Lakelands Public Health, Peterborough - King St, Immunization Clinic | Peterborough |
| Lakelands Public Health, Peterborough - King St, Immunization Programs | Peterborough |
| Lakelands Public Health, Peterborough - King St, Infectious Diseases | Peterborough |
| Lakelands Public Health, Peterborough - King St, Rabies Prevention and Control | Peterborough |
| Lakelands Public Health, Peterborough - King St, Safe Water | Peterborough |
| Lakelands Public Health, Peterborough - King St, Sexual Health Clinic | Peterborough |
| Lakelands Public Health, Peterborough - King St, Substance Use Prevention and Harm Reduction Program | Peterborough |
| Lakelands Public Health, Peterborough - King St, Tobacco Use Prevention | Peterborough |
| Lang Pioneer Village Museum | Otonabee-South Monaghan |
| Learning In Leisure Peterborough | Peterborough |
| Legal Aid Ontario, Peterborough - 364 Water St, Peterborough Area Legal Aid Office | Peterborough |
| Legal Aid Ontario, Peterborough - 470 Water St, Duty Counsel Office (Family), Peterborough - 470 Water St | Peterborough |
| Legal Aid Ontario, Peterborough - 70 Simcoe St, Duty Counsel Office (Criminal), Peterborough - 70 Simcoe St | Peterborough |
| Leta Brownscombe Co-operative Homes Inc., Leta Brownscombe Co-operative Homes Inc | Peterborough |
| Life After Stroke, Peterborough, Life After Stroke Peterborough | Peterborough |
| Liftlock Foodland | Peterborough |
| Lighthouse Retreat, Peterborough - Sherbrooke Heights Retirement Residence | Peterborough |
| Lions Club of Peterborough, Peterborough Lions Community Centre | Peterborough |
| Living Well Home Medical Equipment, Peterborough | Peterborough |
| Lovesick Lake Native Women's Association | Selwyn Township |
