Organization / Program Name(s) Located In
MacLaren Art Centre, Art Classes and Day Camps for Children and YouthBarrie
MacLaren Art CentreBarrie
MADD Canada, Mailing Address, Barrie Simcoe ChapterBarrie
Make-A-Wish, Ontario ChapterPickering
Making Change, Mailing AddressBarrie
Manito Shriner's ClubClearview (Simcoe County)
Maplewood Retirement ResidencePenetanguishene
March of Dimes Canada, Barrie - Bryne Dr, Brain Injury Services - Outreach Activity Groups in Simcoe CountyBarrie
March of Dimes Canada, Midland, Assisted Living Services and Low Acuity Services - Community Support Services ProgramMidland
March of Dimes Canada, Midland, Homemaking ServicesMidland
March Of Dimes Canada - Midland, Midland, Community Support ServicesMidland
March of Dimes Canada (GTA)Toronto
Mariposa Folk FoundationOrillia
Marlene's Foot CareClearview (Simcoe County)
Marriage Officiants211 Central East Region
Martyrs' ShrineMidland
Massage Rx, Registered Massage TherapyMidland
Matheson, Kamerin, Wiesner Centre for Health and Wellness, Naturopathic DoctorMidland
May Court Club of Barrie, BarrieBarrie
May Court Club of Barrie, Barrie, May Court ShopBarrie
MBA - Midland Basketball Association, Midland Mystics Girls' League and Midland Magic Boys' LeagueMidland
McArthur's Berry Farm, Oro MedonteOro-Medonte
McQuaig (Wendy), Orillia, Registered PsychotherapistOrillia
Meadow Creek Montessori School, Barrie - Cundles Rd E, Meadow Creek Montessori School - EastBarrie
Meadow Creek Montessori School, Barrie - Ferndale Dr N, Meadow Creek Montessori School - WestBarrie
Meadow Creek Montessori School, Shanty Bay, Meadow Creek Montessori School - The Bay 
Meals On Wheels, AllistonNew Tecumseth
Mediation Centre of Simcoe CountyBarrie
Mermigis (Dr Lambros) PsychologistBarrie
Mete (Laurie Ann), Certified Advanced Foot CareSpringwater
Métis Nation of Ontario - Georgian Bay Council - Midland, Education and Training, MidlandMidland
Métis Nation of Ontario - Georgian Bay Council - Midland, Healing and Wellness Program, MidlandMidland
Métis Nation of Ontario - Georgian Bay Council - Midland, Metis Healthy Babies, Healthy Children, MidlandMidland
Metroland MediaBarrie
Midhurst Ratepayers' AssociationSpringwater
Midhurst Tennis ClubSpringwater
Midland Alliance ChurchMidland
Midland and District Business Women's AssociationMidland
Midland and District Lawn Bowling ClubMidland
Midland Area Pickleball ClubMidland
Midland Bay DentalMidland
Midland Bay Sailing ClubMidland
Midland Bridge ClubMidland
Midland Chiropractic ClinicMidland
Midland Civitan Club, MidlandMidland
Midland Community Gardens, Midland Community GardenMidland
Midland Cultural Centre, King St, Midland Cultural Centre (MCC)Midland
Midland Curling ClubMidland
Midland District Camera Club, No physical addressMidland
Midland District Shrine ClubMidland
Midland Drive-In TheatreMidland
Midland Family Dentistry, Dr. Joell La Brie, Dr. Farkhunda Rahimy, Midland DentistryMidland
Midland Family LawMidland
Midland Flyers Jr C Hockey TeamMidland
Midland Golf and Country ClubMidland
Midland Hearing Centre, MidlandMidland
Midland Hiking Club (The)Midland
Midland Horticultural SocietyMidland
Midland Keegos Aquatic ClubMidland
Midland Lions ClubMidland
Midland Midwives By the BayMidland
Midland Midwives By the Bay, Chigamik-Waypoint Community Health HubMidland
Midland Minor Hockey AssociationMidland
Midland Minor Lacrosse Association, Midland Titans LacrosseMidland
Midland Mountainview Family Co-operative, MidlandMidland
Midland Penetanguishene Baseball AssociationMidland
Midland Physiotherapy and Rehabilitation CentreMidland
Midland Public Library, Food PantryMidland
Midland Public LibraryMidland
Midland Shuffleboard Club (The)Tay
Midland Small Set Nursery School, St. Pauls United Church, Midland Small Set Co-op Nursery SchoolMidland
Midland Sports Hall of FameMidland
Midland Spring Home ShowMidland
Midland Town CrierMidland
Midland, Penetanguishene and District Builders AssociationMidland
Midland, Town of., Community Reach, Accessible Transit ServiceMidland
Midland, Town of., Midland Penetanguishene Transit ServiceMidland
Midland, Town of., Midland - Bayshore Dr, Fire DepartmentMidland
Midland, Town of., Midland - Dominion Ave, Municipal OfficeMidland
Midland, Town of., Midland - Len Self Blvd - NSSRC, North Simcoe Sports and Recreation CentreMidland
Midland, Town of., Midland - Town Dock- King St, Midland HarbourMidland
Midland, Town of., Pete Petersen Park, Public Boat LaunchMidland
Midland, Town of., Midland Seniors Council, Midland - Len Self Blvd - NSSRCMidland
Midland, Town of., No physical address, Rest Stations for Extreme Weather ReliefMidland
Midland-Penetanguishene District Community Emergency Response Team, Colborn StPenetanguishene
Mill Creek Care Centre, Long Term Care FacilityBarrie
Minesing Central Public SchoolMinesing
Minesing Community Association, Minesing Community CentreSpringwater
Minesing Minor Ball AssociationSpringwater
Mirror (The)Midland
Mnjikaning Arena Sports KiChippewas of Rama First Nation
Mobile Footcare Service, Bring Joy 2 Your FeetPenetanguishene
Mom Concierge, Mailing address, Services for Birth, Breastfeeding, and Beyond!Barrie
Monarchist League Barrie Huronia Branch 
Monsignor Castex Elementary School. MidlandMidland
Mortgage Centre (The), Christmas Hamper ProgramCollingwood
Mountainview Ski AreaMidland
MTM Conservation Association, Tiny Marsh Nature Centre, Tiny Marsh Provincial Wildlife AreaTiny
MultiSport CanadaBarrie
Mundy's Bay Public School. MidlandMidland
Municipal Property Assessment Corporation, Barrie Assessment OfficeBarrie
Music Therapy Services of Simcoe County, BarrieBarrie
My Friend's House, Domestic Violence ShelterCollingwood
My Sister's PlaceNew Tecumseth