Organization / Program Name(s) Located In
Nankind GTA, North York Office, Nankind [formerly Nanny Angel Network]Toronto
Nar-Anon Family Groups, Halton MeetingsHalton Region
Narcotics AnonymousHalton Region
Nasagiweya Historical SocietyMilton
Naseeha Mental HealthMississauga
Nassagaweya Presbyterian ChurchMilton
Nassagaweya Tennis ClubMilton
National Association of Friendship CentresOttawa
National Cycling Institute MiltonMilton
National Eating Disorder Information CentreToronto Downtown Central
National Initiative for Eating Disorders, Education and Support ServicesToronto
National ME / FM Action NetworkOttawa
National NewsMedia CouncilToronto
National Pardon CentreToronto
National Pensioners FederationMississauga
National Service DogsCambridge
National Student Loans Service Centre, Mississauga - Mailing AddressMississauga
National Trust for CanadaOttawa
Native Canadian Centre of TorontoToronto
Native Child and Family Services of Toronto, Women's Transition HouseToronto
Native Horizons Treatment CentreNew Credit
Native Women's Association of Canada, GatineauGatineau
Native Women's Resource Centre of Toronto, Toronto, Community ProgramsToronto
Naturally Clean, Hoarding and Clutter Clean-up ServicesHalton Region
Navy League of Canada, Acton, Navy League Cadet Corps Compass RoseActon
Neurofibromatosis OntarioLondon
New Horizons Media Inc., New CanadiansPickering
New Life Deaf Church, MiltonMilton
New Life Pentecostal ChurchMilton
Newcomer Centre of PeelMississauga
NewLife Fertility Centre, Burlington, Reproductive CareBurlington
Newlife Fertility Centre, Milton, Reproductive CareMilton
Newlife Fertility Centre, Oakville, Reproductive CareOakville
Niagara Escarpment CommissionGeorgetown
Ninth Life Cat RescueOakville
Nisa Helpline, Muslim Women's Helpline 
Nisa Homes (GTA), Nisa Homes, MississaugaMississauga
Normandy Medical ClinicHalton Hills
North Burlington Baptist ChurchBurlington
North Burlington Medical Centre, Walk-in Medical ClinicBurlington
North Burlington Tennis ClubBurlington
North BurLINKton Community Group, Dinner Night OutBurlington
North Central Community AssociationBurlington
North Halton Community SingersGeorgetown
North Halton Girls Hockey AssociationGeorgetown
North Halton Kitten RescueGeorgetown
North Halton Rugby Football ClubGeorgetown
North Oakville Ward 7 Residents' AssociationOakville
Norval United Church, GeorgetownGeorgetown
Nottinghill Co-operative Preschool, Licensed Child Care CentreOakville
NPower CanadaToronto
Nucleus Independent LivingOakville
Nurse Next Door Home Care Services, Milton, In Home Care ServicesMilton
Nutrition PathwayOakville