| Organization Name(s) | Located In |
| Midland Tornado, Accommodations | Midland |
| M and M Residence for Seniors | Barrie |
| M J Translation | Barrie |
| M M Kelly Counselling and Adoption Agency Inc | Barrie |
| Macaulay Tree House Day Nursery | Bracebridge |
| MacDougall [Dr Lorna] | Creemore |
| MacFadyen [Dr J C] | Orillia |
| MacKenzie [Gordon] | Angus |
| Mackenzie Place Long Term Care | Newmarket |
| MacLaren Art Centre | Barrie |
| MacLaren Art Centre, Day Camps and Art Programs for Children and Youth | Barrie |
| MacLennan [Angie] Tutoring Service | Barrie |
| MacLeod Services | Orillia |
| MacMillan and Associates | Barrie |
| Mad River Ganaraska Trail Club | Simcoe County |
| Madcap Players | Midhurst |
| MADD Canada. Barrie Simcoe Chapter | Barrie |
| Magee [Dr Rick] | Innisfil |
| Major's Guardian Pharmacy | Wasaga Beach |
| Man to Man Prostate Cancer Support Group | Barrie |
| Manita Rebekah Lodge 128 | Collingwood |
| Manito Masonic Lodge 90 | Collingwood |
| Manito Shrine Club. Collingwood | Clearview |
| Manpower | Barrie |
| Manulife Financial | Toronto |
| Maple Grove Public School | Barrie |
| Maple Hill Montessori School, Huronia Rd Location, Elementary Program | Barrie |
| Maple Hill Montessori School, Huronia Rd Location, Toddler and Preschool Program | Barrie |
| Maple Hill Montessori School, Summer Day Camps | Barrie |
| Maple Hill Montessori School, Toronto St Location, Toddler and Preschool Program | Barrie |
| Maple Hill Montessori School., Toronto St Location, Elementary Program | Barrie |
| Maple Valley Sports Bar | Penetanguishene |
| Mapleview Community Church | Barrie |
| Mapleview Heights Elementary School | Barrie |
| Maplewood Retirement Residence | Penetanguishene |
| Marchmont Baptist Church | Oro-Medonte |
| Marchmont Public School | Orillia |
| Marek [Dr Ken] | Barrie |
| Marie of the Incarnation School | Bradford |
| Marilyn's Piano Studio | Barrie |
| Mariposa Arts Theatre Foundation | Orillia |
| Mariposa Folk Festival | Orillia |
| Mariposa Grandmothers for SLF | Orillia |
| Mariposa Gymnastics Club | Orillia |
| Mariposa Mavericks, Orillia Twist Stars, Xtreme All-Star Cheerleading. Orillia | Orillia |
| Mariposa Place | Orillia |
| Mariposa School of Skating | Barrie |
| Mariposa Wrestling Club | Orillia |
| Mariposa Writers Group | Orillia |
| Mark Kleiman D.P.M | Orillia |
| Marlene's Foot Care | Wasaga Beach |
| Marriage Ceremonies at Barrie City Hall | Barrie |
| Marriage Encounter/Retrouvaille Rediscovery | Collingwood |
| Marshall [Dr Bryan] | Stayner |
| Marshall [Dr Peter] | Barrie |
| Martin Luther Court | Barrie |
| Martin's Complete Service & Repairs | Collingwood |
| Martin's Vein and Medical Aesthetics Clinic | Barrie |
| Martyrs' Shrine | Tay |
| Mary McGill Community Mental Health Centre | Alliston |
| Masonic Lodge, Tottenham Lodge 467 | Tottenham |
| Masonic Lodge (The) | Orillia |
| Masonic Lodge. Beeton Spry Lodge 385 | Beeton |
| Masonic Lodge. Cookstown Manitoba Lodge 236 | Cookstown |
| Massage Rx, Registered Massage Therapy, Ronda-Lynne Wiesner, RMT | Midland |
| Masters Outdoor Mini Putt | Barrie |
| Math Medic | Collingwood |
| Math Tutors | Wasaga Beach |
| Matthew Co-operative Housing Inc | Collingwood |
| Matthews House Hospice | Alliston |
| Matthews House Hospice, Client Support, Family and Caregiver Support, Bereavement Support | Alliston |
| Matwijec, (Irene) | Collingwood |
| Matyas Consulting Inc | Midland |
| Mavrou Chiropractic Services | Midland |
| Maximum Independence and Mobility Inc | Orillia |
| May Court Club of Barrie [The] | Barrie |
| May's Manor | Orillia |
| Mayer's Martial Arts. Elmvale | Elmvale |
| Mayer's Martial Arts. Victoria Harbour | Victoria Harbour |
| Mayers Martial Arts. Penetanguishene | Penetanguishene |
| McArthur's Berry Farm | Oro-Medonte |
| McClure [Dr Douglas] | Midland |
| McComb [Dr W] | Orillia |
| McCutcheon [Dr Larry] | Midland |
| McGillis [Dr Margaret G] | Thornbury |
| McKechnie Counselling Services | Newmarket |
| Mckendry [Susan] | Barrie |
| McKnight [Debbie] | Cookstown |
| McMaster [Dr Carol Corlis] | Barrie |
| McNabb Health Centre. Collingwood Location | Collingwood |
| McNabb Health Centre. Stayner Location | Stayner |
| McQuaig [Wendy] Therapist | Orillia |
| Meadow Creek Montessori School | Barrie |
| Meals On Wheels. Alliston | Alliston |
| Meals on Wheels. Angus | Barrie |
| Meals On Wheels. Innisfil | Innisfil |
| Meals on Wheels. Stayner | Stayner |
| Mediation Centre of Simcoe County Inc (The) | Barrie |
| Medichair Barrie | Barrie |
| Medigas | Barrie |
| Meeting Place (The) | Orillia |
| Mehta [Dr. Shardul] | Midland |
| Melchior Management Corporation | Barrie |
| Melnyk [Dr Ilarion] | Midland |
| Melody Acres Training Centre, Partners in Process Equine Learning Centre | Owen Sound |
| Melody House | Orillia |
| Mens Industrial Dart League | Collingwood |
| Mens Work Counselling and Education Services | Barrie |
| Mental Health and Addiction Services of Simcoe County, Assertive Community Treatment Team | Barrie |
| Mental Health and Addiction Services of Simcoe County, Barrie Office | Barrie |
| Mental Health and Addiction Services of Simcoe County, CARAH House Crisis Services, Mental Health Crisis Line | Barrie |
| Mental Health and Addiction Services of Simcoe County, CARAH House Crisis Services, Mobile Crisis Services | Barrie |
| Mental Health and Addiction Services of Simcoe County, CARAH House Crisis Services, Residential Crisis Beds | Barrie |
| Mental Health and Addiction Services of Simcoe County, Case Management | Barrie |
| Mental Health and Addiction Services of Simcoe County, Collingwood Satellite Office | Collingwood |
| Mental Health and Addiction Services of Simcoe County, Community Awareness Program | Barrie |
| Mental Health and Addiction Services of Simcoe County, Early Psychosis Intervention | Barrie |
| Mental Health and Addiction Services of Simcoe County, Housing Support | Barrie |
| Mental Health and Addiction Services of Simcoe County, Human Services Justice System Program | Barrie |
| Mental Health and Addiction Services of Simcoe County, Midland Satellite Office | Midland |
| Mental Health and Addiction Services of Simcoe County, Orillia Satellite Office | Orillia |
| Mental Health and Addiction Services of Simcoe County, RSVP Clubhouse | Barrie |
| Mental Health and Addiction Services of Simcoe County, South Simcoe Satellite Office | Alliston |
| Mental Health and Addiction Services of Simcoe County, The Volunteer Program | Barrie |
| Mental Health and Addiction Services of Simcoe County, Youth Programs | Barrie |
| Mental Health Centre Penetanguishene | Penetanguishene |
| Mental Health Centre Penetanguishene, Geriatric Services Program | Penetanguishene |
| Mental Health Centre Penetanguishene, Housing Services (Homes for Special Care Program) | Midland |
| Mental Health Centre Penetanguishene, Outpatient Services Program | Midland |
| Mental Health Centre Penetanguishene, Patient/Client and Family Council | Penetanguishene |
| Mental Health Centre Penetanguishene, Psychiatric Patient Advocate Office | Penetanguishene |
| Mental Health Centre Penetanguishene, Regional and Community Rehabilitation Services, Adult Education Program, Regional Client Education | Simcoe North |
| Mental Health Centre Penetanguishene, Rehabilitation Services, Employment and Education Services | Midland |
| Mental Health Centre Penetanguishene, Rehabilitation Services, Our Place Social Club | Midland |
| Mental Health Centre Penetanguishene, Rehabilitation Services, Recreational Services | Midland |
| Mental Health Centre Penetanguishene, Shuttle Bus Service | Penetanguishene |
| Mental Health Centre Penetanguishene, Spiritual Care Team | Penetanguishene |
| Mental Health Centre Penetanguishene, Volunteer Association | Penetanguishene |
| Mental Health Centre Penetanguishene, Volunteer Services | Penetanguishene |
| Mental Health Centre Penetanguishene. Bayview Dual Diagnosis Program | Penetanguishene |
| Mental Health Consumer Survivor Project for Simcoe County | Collingwood |
| Mental Health Consumer Survivor Project for Simcoe County, People Supporting People | Collingwood |
| Mental Health Social Networking Site | USA |
| Merchant (Jennifer) | Wasaga Beach |
| Mermigis [Dr Lambros] | Barrie |
| Mete [Laurie], Certified Foot Care | Minesing |
| Metis Nation of Ontario, Aboriginal Healing and Wellness Program | Midland |
| Metis Nation of Ontario, Georgian Bay Metis Council | Midland |
| Metis Nation of Ontario Education and Training | Midland |
| Metis Nation of Ontario. Innisfil Office | Innisfil |
| Metro Pharmacy | Collingwood |
| Midhurst Arts and Crafts Home Tour (The) | Midhurst |
| Midhurst Bridge Club | Midhurst |
| Midhurst Historical Society | Midhurst |
| Midhurst Ratepayers Association | Midhurst |
| Midhurst Tennis Club | Midhurst |
| Midhurst United Church | Midhurst |
| Midland Alliance Church | Midland |
| Midland and District Business Women's Association | Midland |
| Midland and District Camera Club | Midland |
| Midland and District Lawn Bowling Club | Midland |
| Midland Area Newcomers Club | Midland |
| Midland Area Reading Council, Books for Brunch | Midland |
| Midland Area Reading Council, Literacy and Basic Skills | Midland |
| Midland Area Reading Council, New Skills North Simcoe | Midland |
| Midland Astronomy Club | Midland |
| Midland Badminton Program | Midland |
| Midland Bay Sailing Club | Midland |
| Midland Civitan Club | Midland |
| Midland Civitan Club, Medical Equipment Loan Program | Midland |
| Midland Curling Club | Midland |
| Midland Denture Clinic | Midland |
| Midland District Kennel and Obedience Club | Midland |
| Midland District Railroad Club (The) | Tiny |
| Midland District Shrine Club | Midland |
| Midland Duplicate Bridge Club | Midland |
| Midland Farmers' and Artisans' Market | Midland |
| Midland Fibromyalgia Group | Midland |
| Midland Figure Skating Club | Midland |
| Midland Flyers Jr C Hockey Team | Midland |
| Midland Foodland, Home Delivery Service | Midland |
| Midland Golf and Country Club | Midland |
| Midland Hiking Club (The) | Midland |
| Midland Horticultural Society | Midland |
| Midland Keegos Aquatic Club | Midland |
| Midland Ladies Softball League | Perkinsfield |
| Midland Lions Club | Midland |
| Midland Lodge of Independent Order of Odd Fellows 274 | Midland |
| Midland Lodge of Independent Order of Odd Fellows 274, Medical Equipment Loan Program | Midland |
| Midland Minor Baseball Association | Midland |
| Midland Minor Hockey Association | Midland |
| Midland Minor Lacrosse Association | Midland |
| Midland Mountainview Family Co-operative Inc | Midland |
| Midland Nursery School Incorporated | Midland |
| Midland Physiotherapy and Rehabilitation Centre | Midland |
| Midland Power and Sail Squadron | Midland |
| Midland Power Utility Corporation | Midland |
| Midland Public Library | Midland |
| Midland Public Library, Authors Series | Midland |
| Midland Saints Old Timer Hockey Club | Midland |
| Midland Secondary School | Midland |
| Midland Secondary School Scholarship Fund | Midland |
| Midland Shito Ryu Karate | Midland |
| Midland Shuffleboard Club (The) | Midland |
| Midland Ski Club | Midland |
| Midland Small Set Co-op Nursery School | Midland |
| Midland Sports Hall of Fame | Midland |
| Midland Spring Home Show | Midland |
| Midland Tours Inc, Barrie Boat Cruises | Barrie |
| Midland Volleyball Club | Midland |
| Midland Women's Ball Hockey League | Midland |
| Midland, Penetanguishene and District Builders Association | Midland |
| Midland, Town of. Department of Parks and Recreation, North Simcoe Sports and Recreation Centre | Midland |
| Midland, Town of. Department of Parks, Recreation and Culture, Midland Town Dock | Midland |
| Midland, Town of. Department of Parks, Recreation and Culture, Pete Petersen Park. Boat Launching Facility | Midland |
| Midland, Town of. Fire Department | Midland |
| Midland, Town of. Midland Police Service | Midland |
| Midland, Town of. Midland Seniors Council | Midland |
| Midland, Town of. Midland Transit Service | Midland |
| Midland, Town of. Municipal Office | Midland |
| Midland, Town of. Parks and Recreation Department | Midland |
| Midland-Penetanguishene District Community Emergency Response Team | Midland |
| Midland-Penetanguishene Field Naturalists | Midland |
| Midwives Nottawasaga | Collingwood |
| Mikey's Place for Autism Resource Centre | Midland |
| Mill Creek Care Centre, Long Term Care Facility | Barrie |
| Mind Over Math | Barrie |
| Mind to Muscle | Barrie |
| Mindfulness Based Stress Reduction Program | Barrie |
| Minds Alive | Midland |
| Minesing Central Public School | Minesing |
| Minesing Community Association | Minesing |
| Minesing Minor Ball Association | Minesing |
| Minesing United Church | Minesing |
| Mini Major's Guardian Pharmacy | Wasaga Beach |
| Ministry of Community Safety and Correctional Services, Ontario Fire Marshall - Southwest Region | Midhurst |
| Mirror (The) | Midland |
| Mission Church of St Louis. Mount St. Louis | Oro-Medonte |
| Mitchell's Medical Supply Inc. | Midland |
| Mnjikaning Arena Sports Ki | Rama |
| Mnjikaning Fish Fence Circle | Orillia |
| Mnjikaning Kendaaswin Elementary School | Rama |
| Mnjikaning Kendaaswin School Age Program | Rama |
| Mobile Crisis Response Services for Children and Youth. Simcoe County | Barrie |
| Mobile Dental Hygiene Care | Barrie |
| Mobile Seating and Mobility Clinics, PT Health Providing Healthcare Solutions | Midland |
| Mobile Unit | Orillia |
| Mobility Centre Plus | Midland |
| Modern Square and Round Dance Club, Blue Mountain Promenaders | Collingwood |
| Molson Sportsmen Hockey League | Barrie |
| Moms Need a Break | Barrie |
| Moms Supporting Moms, Barrie | Barrie |
| Monday Nights Dart League | Collingwood |
| Monsignor Castex Elementary School. Midland | Midland |
| Monsignor Clair Elementary School | Barrie |
| Monsignor J E Ronan Catholic School | Beeton |
| Monsignor Lee School | Orillia |
| Monte [Dr Myrna] | Wasaga Beach |
| Mood Disorders Self Help Group of Barrie | Barrie |
| Moonglow | Elmvale |
| Moonshine Theatre Company | Orillia |
| Moonstone Elementary | Oro-Medonte |
| Moore Dentistry [Dr D] | Orillia |
| Moran Medical Centre | Collingwood |
| Moreau [Dr Monique] | Alliston |
| Morgan [Michael J], Private Tutoring | Midhurst |
| Morton House | Barrie |
| MotherCare Barrie | Barrie |
| MotherCare Barrie Next Step Program | Barrie |
| MotherCare Innisfil | Innisfil |
| MotherCare Innisfil Next Step Program | Innisfil |
| Mothercare North Simcoe, Community Action Program for Children / Canada Prenatal Nutrition Program, Catulpa Community Support Services Inc. | Midland |
| Mothercare Orillia, Next Step Program, Community Action Program for Children (CAP-C), Catulpa Community Support Services Inc. | Orillia |
| Mothercare. Orillia, Canada Prenatal Nutrition Program (CPNP), Community Action Program for Children (CAPC), Catulpa Community Support Services Inc. | Orillia |
| Motion Specialties | Barrie |
| Mount Lakeview Non Profit Housing Corporation | Midland |
| Mountain Chiropractic | Collingwood |
| Mountain View Public School | Collingwood |
| Mountainview Cycling Club | Midland |
| Mountainview Ski Area | Midland |
| Moving Art | Barrie |
| Mrs Alfred Watt Memorial Womens Institute (Simcoe West) | Clearview |
| MTM Conservation Association Incorporated, Tiny Marsh Provincial Wildlife Area | Tiny |
| MTN Communications Systems | Midland |
| Mueller [Dr J] | Orillia |
| Mulcaster Mews | Barrie |
| Multiple Sclerosis Society of Canada, Simcoe County Chapter | Barrie |
| Multiple Sclerosis Society of Canada, Simcoe County Chapter, Alliston Support Group | Alliston |
| Multiple Sclerosis Society of Canada, Simcoe County Chapter, Barrie Support Group | Barrie |
| Multiple Sclerosis Society of Canada, Simcoe County Chapter, Midland Support Group | Midland |
| Multiple Sclerosis Society of Canada, Simcoe County Chapter, Orillia Support Group | Orillia |
| Multiple Sclerosis Society of Canada, Simcoe County Chapter, Wasaga Beach Support Group | Wasaga Beach |
| Mundy's Bay Public School. Midland | Midland |
| Municipal Property Assessment Corporation, Simcoe County, Municipal Assessment Office #16, Property Assessment Program | Barrie |
| Munro Chiropractic | Orillia |
| Murlyn Health Centre. Orillia, Murray [G] | Orillia |
| Muscular Dystrophy Canada, Ontario Region | Toronto |
| Muscular Dystrophy Canada. Simcoe Region Chapter of Muscular Dystrophy | Simcoe County |
| Museum on the Boyne | Alliston |
| Music For Little People | Alliston |
| Music for Young Children. Barrie North East Area | Barrie |
| Music for Young Children. Barrie North West Area | Barrie |
| Music For Young Children. Orillia | Orillia |
| Music Pro Education Centre, Summer Day Programs and Courses | Barrie |
| Music Therapy Services of Simcoe County | Barrie |
| Muskoka Lakes Preschool | Port Carling |
| Muskoka Landing | Huntsville |
| Muskoka Lodge 360. Bracebridge | Bracebridge |
| Muskoka Medical Centre Pharmacy | Huntsville |
| Muskoka North Residential | Gravenhurst |
| Muskoka Pathways to Independence | Huntsville |
| Muskoka Stretchers, Bracebridge | Bracebridge |
| Muskoka Stretchers. Gravenhurst | Gravenhurst |
| Muskoka Wildlife Centre | Severn |
| Muskoka Woods | Rosseau |
| Muskoka-Simcoe Dental Society | Simcoe County |
| Muzzle Control | Wyevale |
| My Friend's House | Collingwood |
| My Friend's House, Community Outreach / Transition Program | Collingwood |
| My Pre Academy | Barrie |