| Organization Name(s) | Located In |
| N and G Handyman Renovation Services | Clearview |
| Nadir Jamal Pharmacy | Brechin |
| Nana's Closet | Barrie |
| Nantyr Shores Secondary School | Innisfil |
| Nar-Anon. South Georgian Bay Group | Collingwood |
| Naranon. Barrie | Barrie |
| Narcotics Anonymous, Barrie | Barrie |
| Narcotics Anonymous. Alliston Group | Alliston |
| Narcotics Anonymous. Collingwood | Collingwood |
| Narcotics Anonymous. Orillia | Orillia |
| Narrow Way Ministries (The) | Simcoe County |
| National Music Camp of Canada | Ramara |
| National Service Dogs | Barrie |
| National Ski Academy | Collingwood |
| National Training Rinks | Barrie |
| Native Language Classes and Language Camp | Christian Island |
| Natural Pain Relief Centers | Toronto |
| Natural Wonders Montessori and Nursery School | Beeton |
| Naturally You | Barrie |
| Nature League (The) | Collingwood |
| Nature's Own Bakery | Barrie |
| Naturopathic Medicine | Elmvale |
| Navy League Cadet Corps #24 Chambly | Barrie |
| Navy League of Canada Barrie Branch | Barrie |
| Navy League of Canada. Huronia Branch | Midland |
| Naylor [Dr Tom] | Tottenham |
| Neathery and Mumford Associates | Collingwood |
| Neighbour's Personal Services | Barrie |
| Nel, Dr. J. | Penetanguishene |
| Neville [Dr Drewe] | Midland |
| New Apostolic Church. Barrie | Barrie |
| New Apostolic Church. Orillia | Orillia |
| New Beginnings Christian Church of Alliston | Alliston |
| New Beginnings Support Group | Barrie |
| New Democratic Party Association. Simcoe-Grey Riding | Simcoe County |
| New Democratic Party of Canada, Barrie Electoral District, New Democratic Party Riding Association | Barrie |
| New Democratic Party of Ontario, Barrie Electoral District, New Democratic Party Riding Association | Barrie |
| New Directions Counselling | Collingwood |
| New Farm (The) | Clearview |
| New Life Brethren in Christ Church | Collingwood |
| New Life Brethren in Christ Church, Gift of Giving Ministry | Collingwood |
| New Life Brethren in Christ Church, Maple Lane Nursery School | Collingwood |
| New Life Fellowship Baptist Church | Innisfil |
| New Lowell Central Public School | New Lowell |
| New Lowell Knights | Clearview |
| New Lowell Minor Baseball Association | Clearview |
| New Lowell Moms and Tots | New Lowell |
| New Lowell United Church | New Lowell |
| New Path Foundation of Simcoe County | Barrie |
| New Path Youth and Family Services of Simcoe County. Alliston Office, Partner Abuse Program | Alliston |
| New Path Youth and Family Services of Simcoe County. Alliston Office, Youth and Family Counselling Services | Alliston |
| New Path Youth and Family Services of Simcoe County. Barrie Head Office | Barrie |
| New Path Youth and Family Services of Simcoe County. Barrie Head Office, Adolescent Outreach Program | Barrie |
| New Path Youth and Family Services of Simcoe County. Barrie Head Office, COMPASS | Simcoe County |
| New Path Youth and Family Services of Simcoe County. Barrie Head Office, Early Years Services | Barrie |
| New Path Youth and Family Services of Simcoe County. Barrie Head Office, Respite Care Program | Barrie |
| New Path Youth and Family Services of Simcoe County. Barrie Office, Attendance Centre | Barrie |
| New Path Youth and Family Services of Simcoe County. Barrie Office, Partner Abuse Program | Barrie |
| New Path Youth and Family Services of Simcoe County. Barrie Office, Partner Assault Response Services | Barrie |
| New Path Youth and Family Services of Simcoe County. Barrie Office, Youth and Family Counselling Services | Barrie |
| New Path Youth and Family Services of Simcoe County. Bradford Office, Youth and Family Counselling Services | Bradford |
| New Path Youth and Family Services of Simcoe County. Collingwood Office, Partner Abuse Program | Collingwood |
| New Path Youth and Family Services of Simcoe County. Collingwood Office, Youth and Family Counselling Services | Collingwood |
| New Path Youth and Family Services of Simcoe County. Cookstown Office, Residential Services | Innisfil |
| New Path Youth and Family Services of Simcoe County. Midland Office, Partner Abuse Program | Midland |
| New Path Youth and Family Services of Simcoe County. Orillia Office, Multi Disciplinary Clinic | Orillia |
| New Path Youth and Family Services of Simcoe County. Orillia Office, Partner Abuse Program | Orillia |
| New Path Youth and Family Services of Simcoe County. Orillia Office, Youth and Family Counselling Services | Orillia |
| New Start Personnel | Barrie |
| New Tecumseth & District Skating Club | New Tecumseth |
| New Tecumseth Arthritis Support Group | Alliston |
| New Tecumseth Family Footcare | Beeton |
| New Tecumseth Heritage Committee (The) | Alliston |
| New Tecumseth Optometry Clinic | Alliston |
| New Tecumseth Public Library, DA Jones Branch, Beeton | Beeton |
| New Tecumseth Public Library, Memorial Branch, Alliston | Alliston |
| New Tecumseth Public Library, Pam Kirkpatrick Branch, Tottenham | Tottenham |
| New Tecumseth Recreation Centre | Alliston |
| New Tecumseth Singers (The) | New Tecumseth |
| New Tecumseth Streams Committee (NTSC) | New Tecumseth |
| New Tecumseth, Town of. Fire Department | New Tecumseth |
| New Tecumseth. Administration Department | Alliston |
| New Tecumseth. Building Standards | Alliston |
| New Tecumseth. Environmental Issues Task Force | Alliston |
| New Tecumseth. Finance Department | Alliston |
| New Tecumseth. Parks Recreation and Culture Department | Beeton |
| New Tecumseth. Parks Recreation and Culture Department, Alliston Memorial Arena | Alliston |
| New Tecumseth. Parks Recreation and Culture Department, Alliston Rotary Pool | Alliston |
| New Tecumseth. Parks Recreation and Culture Department, Beeton Memorial Arena and Community Hall | Beeton |
| New Tecumseth. Parks Recreation and Culture Department, Municipal Recreation Programs | New Tecumseth |
| New Tecumseth. Parks Recreation and Culture Department, Summer Day Camps | New Tecumseth |
| New Tecumseth. Parks Recreation and Culture Department, Tottenham and District Community Centre | Tottenham |
| New Tecumseth. Parks Recreation and Culture Department, Tottenham Conservation Area | Tottenham |
| New Tecumseth. Planning Department | Alliston |
| New Tecumseth. Public Works Department | Alliston |
| Newmarket-Tay Power Distribution Ltd, Tay Power Distribution Company | Port McNicoll |
| Newport Adventure Camp | Utterson |
| Newton Robinson Booster Club | Bradford West Gwillimbury |
| Newton Robinson United Church | Bradford West Gwillimbury |
| Ngo [Dr K] | Orillia |
| Nicholls Funeral Home. Midland, A Division of Arbor Memorial Services | Midland |
| Nicholls Funeral Home. Midland, Community Room | Midland |
| Nichols [Dr Bradley] | Creemore |
| Nichols [Lynne] | Barrie |
| Nicholson [Dr W Reginald] | Midland |
| Nixon [Dr D] | Orillia |
| Noble [Dr Edward J] | Collingwood |
| Non-Profit Network of South Georgian Bay | Collingwood |
| Non-violent Crisis Intervention Training, York-Simcoe Brain Injury Services | Richmond Hill |
| Noor-Ul-Islam of Ontario, Barrie | Barrie |
| North Barrie Alternative School | Barrie |
| North Country Baptist Church | Orillia |
| North Dufferin Baseball League | Creemore |
| North River Riders | Orillia |
| North Simcoe 4-H Beef Club | Simcoe North |
| North Simcoe 4-H Club | Elmvale |
| North Simcoe 4-H Dairy Club | Springwater |
| North Simcoe Anglers and Hunters | Perkinsfield |
| North Simcoe Community Futures Development Corporation | Midland |
| North Simcoe Family Health Team | Midland |
| North Simcoe Girls Hockey Association | Midland |
| North Simcoe Grains Project | Elmvale |
| North Simcoe Marriage Officiants | Simcoe County |
| North Simcoe Mothercare Next Step Program | Midland |
| North Simcoe Multiple Sclerosis Information Source | Midland |
| North Simcoe Muskoka Community Care Access Centre, Barrie Office | Barrie |
| North Simcoe Muskoka Community Care Access Centre, Barrie Office, Case Management | Barrie |
| North Simcoe Muskoka Community Care Access Centre, Barrie Office, Nursing | Barrie |
| North Simcoe Muskoka Community Care Access Centre, Barrie Office, Nutritional Services | Barrie |
| North Simcoe Muskoka Community Care Access Centre, Barrie Office, Occupational Therapy | Barrie |
| North Simcoe Muskoka Community Care Access Centre, Barrie Office, Personal Support | Barrie |
| North Simcoe Muskoka Community Care Access Centre, Barrie Office, Physiotherapy | Barrie |
| North Simcoe Muskoka Community Care Access Centre, Barrie Office, Respiratory Therapy | Barrie |
| North Simcoe Muskoka Community Care Access Centre, Barrie Office, Social Work | Barrie |
| North Simcoe Muskoka Community Care Access Centre, Barrie Office, Speech and Language Pathology | Barrie |
| North Simcoe Muskoka Community Care Access Centre, Huntsville Office | Huntsville |
| North Simcoe Muskoka Community Care Access Centre, Huntsville Office, Case Management | Huntsville |
| North Simcoe Muskoka Community Care Access Centre, Huntsville Office, Nursing | Huntsville |
| North Simcoe Muskoka Community Care Access Centre, Huntsville Office, Nutritional Services | Huntsville |
| North Simcoe Muskoka Community Care Access Centre, Huntsville Office, Occupational Therapy | Huntsville |
| North Simcoe Muskoka Community Care Access Centre, Huntsville Office, Personal Support | Huntsville |
| North Simcoe Muskoka Community Care Access Centre, Huntsville Office, Physiotherapy | Huntsville |
| North Simcoe Muskoka Community Care Access Centre, Huntsville Office, Respiratory Therapy | Huntsville |
| North Simcoe Muskoka Community Care Access Centre, Huntsville Office, Social Work | Huntsville |
| North Simcoe Muskoka Community Care Access Centre, Huntsville Office, Speech and Language Pathology | Huntsville |
| North Simcoe Muskoka Community Support Services Coalition | Barrie |
| North Simcoe Muskoka Infection Control Network, RICN | Orillia |
| North Simcoe Muskoka Integrated Regional Falls Program | Orillia |
| North Simcoe Muskoka Local Health Integration Network | Simcoe County |
| North Simcoe Muskoka Palliative Care Network | Orillia |
| North Simcoe Puts People First, Drop In Centre | Midland |
| North Simcoe Rail Trail Inc | Midhurst |
| North Simcoe Regional Diabetes Program, North Simcoe Family Health Team | Midland |
| North Simcoe Stewardship | Midhurst |
| North Simcoe Substance Misuse Network | Midland |
| North Simcoe Victim Crisis Services, SupportLink Wireless Phone Programme | Orillia |
| North Simcoe Youth Spring Soccer, Tim Horton Timbit League | Penetanguishene |
| North Star Royal Black Preceptory 384 | Collingwood |
| Northcott [David] | Midland |
| Northern Air Solutions | Gravenhurst |
| Northern Lights Canada, Employment Services | Victoria Harbour |
| Northern Lights Canada, Ontario Employment Services, Barrie | Barrie |
| Northern Lights Canada, Ontario Employment Services, Innisfil | Innisfil |
| Northern Lights Canada, Orillia, Ontario Employment Services | Orillia |
| Northern Ontario Welding College | Barrie |
| Northern Stars Gymnastics Inc | Barrie |
| Northfields After School Program | Barrie |
| Northfields Stay and Play Group | Barrie |
| Northside Bible Chapel | Barrie |
| Northwest Barrie United Church | Barrie |
| Notre Dame | Orillia |
| Nottawa Chiropractic | Clearview |
| Nottawa Elementary School | Clearview |
| Nottawa Minor Softball | Clearview |
| Nottawa United Church of Canada | Clearview |
| Nottawasaga Activity Club | Alliston |
| Nottawasaga and Creemore Public School. Caroline St | Creemore |
| Nottawasaga and Creemore Public School. Collingwood St | Creemore |
| Nottawasaga Cooperative Homes Inc | Alliston |
| Nottawasaga Futures, Business Excellence Resource Centre | Alliston |
| Nottawasaga Futures. Alliston | Alliston |
| Nottawasaga Futures. Bradford | Bradford |
| Nottawasaga Model Railroad Club | Wasaga Beach |
| Nottawasaga Valley Conservation Authority | Essa |
| Nottawasaga Valley Conservation Authority, New Lowell Conservation Area | New Lowell |
| Nottawasaga Valley Conservation Authority, Tiffin Centre for Conservation, John L. Jose Environmental Learning Centre | Essa |
| Novak [Dr Ann] | Wasaga Beach |
| NT Temps Inc. a subsidiary of Nottawasaga Community Economic Development Corporation. Alliston | Alliston |
| Nurses Alumnae of Royal Victoria Hospital | Simcoe County |
| Nurses Alumnae of the Collingwood General and Marine Hospital | Collingwood |