| Narcotics Anonymous, Infinity Recovery Group | Malton |
| Narcotics Anonymous - Ontario Regional Service Committee, Brampton/Mississauga Meetings | Peel Region |
| National Eating Disorder Information Centre | Toronto Central |
| National Home Doctor | Greater Toronto Area |
| National Home Doctor Service, MedVisit | Toronto |
| Navy League of Canada, Navy League Cadet Corps, 139 Revenge Group | Mississauga |
| Neurodevelopmental and Educational Assessment Centre (The) | Mississauga |
| New Care Pharmacy | Etobicoke North |
| New Life Covenant Centre | Malton |
| New Motion, Physio and Sports Rehab | Brampton |
| New Playland Nursery School | Cooksville |
| New Steps Child Care Division 2 | Brampton |
| Newcomer Centre of Peel | Mississauga |
| Newcomers Centre of Peel, Settlement & Immigration Services | Mississauga |
| Newton's Grove School, Mississauga Private School | Mississauga (City of) |
| Next Step to Active Living, Adult Day Program | Mississauga |
| Next Steps Employment Centre, Dixie-Dundas, Ontario Employment Services | Mississauga |
| Next Steps Employment Centre, Mississauga-Meadowvale, Ontario Employment Services | Mississauga |
| Nexus Youth Services, Community Counselling Program | Mississauga |
| Nexus Youth Services, Nexus Youth Centre | Mississauga |
| NKS Health | Mississauga |
| No Frills DRUGStore Pharmacy, Mississauga - Burnhamthorpe Rd W, South Common Mall | Mississauga |
| No Frills DRUGStore Pharmacy, Mississauga - Creditview Rd | Mississauga |
| No Frills DRUGStore Pharmacy, Mississauga - South Service Rd, Dixie Outlet Mall | Mississauga |
| Nofrills DRUGStore Pharmacy, Brampton - 295 Queen St E | Brampton |
| Nofrills DRUGStore Pharmacy, Brampton - 70 Clementine Dr | Brampton |
| Nofrills DRUGStore Pharmacy, Etobicoke - Albion Rd | Etobicoke North |
| Nofrills DRUGStore Pharmacy, Shelburne | Shelburne |
| North Bramalea Pharmacy | Brampton |
| North Peel & Dufferin Community Legal Services | Brampton |
| North Peel Family Health Team, Kensington Office | Brampton |
| North Peel Family Health Team, Queen Street East | Brampton |
| Northridge Montessori School | Erin Mills |
| NorthStar Montessori | Cooksville |
| Northstar Montessori Private School | Mississauga |
| Northview Pharmacy, Brampton | Brampton |
| Norton Lake, Seniors and Family Apartments | Brampton |
| Nucleus Independent Living | Oakville |
| Nurse Next Door Homecare Services - Brampton and Caledon | Brampton |
| Nurse Next Door Mississauga, Home Care Services | Peel Region |