| Macaulay Heritage Park | Picton |
| MacDonald Residence | Vankleek Hill |
| MacEwen Foundation | Maxville |
| Mackay Manor, Residential Recovery Home for Men | Renfrew |
| Mackay Manor, Community Withdrawal Management Services | Renfrew |
| Mackay Manor, Renfrew County Addiction Supportive Housing Program | Renfrew |
| Mackay Manor, STOP Program | Renfrew |
| MacLachlan Woodworking Museum | Kingston |
| Macrobiotics Canada | Almonte |
| Madawaska Valley Association for Community Living | Barry's Bay |
| Madawaska Valley Association for Community Living, The Learning Center | Barry's Bay |
| Madawaska Valley Dance | Madawaska Valley |
| Madawaska Valley Food Bank | Barry's Bay |
| Madawaska Valley Hospice Palliative Care | Barry's Bay |
| Madawaska Valley Midwives, Killaloe | Killaloe, Hagarty and Richards |
| Madawaska Valley Midwives, Petawawa | Petawawa |
| Madawaska Valley Physiotherapy | Barry's Bay |
| Madawaska Valley Public Library | Madawaska Valley |
| Madawaska Valley. Municipal Office, Combermere - Farmer Rd, Combermere and Area Community Centre | Madawaska Valley |
| Madawaska Valley. Municipal Office, Barry's Bay - Bay St | Barry's Bay |
| Madawaska Valley. Municipal Office, Barry's Bay - Arena Rd, Paul J. Yakabuski Community Centre | Barry's Bay |
| Madawaska Valley. Municipal Office, Barry's Bay-341 John St, Walking in the Halls | Barry's Bay |
| Madison Montessori Academy | Kemptville |
| Madoc and District Figure Skating Club, Madoc | Madoc |
| Madoc and District Recreation Centre, Madoc, Arena | Madoc |
| Madoc Seventh-day Adventist Church, Madoc, Seventh-day Adventist Church - Bible School | Madoc |
| Madoc Township Municipal Offices, Madoc | Madoc |
| Madoc Wesleyan and Free Methodist Church, Madoc, Methodist Church | Madoc |
| Madonna Care Community | Orleans |
| Madonna House, St Joseph's House | Combermere |
| Maestro LifeStyles, Ottawa | Ottawa |
| Maggie's Resource Centre, Bancroft, Tamarack Women's Resource Centre | Bancroft |
| Maggie's Resource Centre, Bancroft, Women's Crisis Centre for Domestic Violence | Bancroft |
| Main Street Community Services | Stittsville |
| Maison Baldwin House | Cornwall |
| Maison d'amitié | Ottawa |
| Maison Decision House | Ottawa |
| Maison Interlude House | Hawkesbury |
| Maison Interlude House, Alexandria, Outreach Services | Alexandria |
| Maison Marie-Louise | Vanier |
| Maison Tucker House | Rockland |
| Maitland Education Recreation Centre | Maitland |
| Make A Change Canada | Toronto |
| Make-A-Wish | Québec |
| Make-A-Wish Foundation of Eastern Ontario | Ottawa |
| Making Play Possible | Brockville |
| Makonsag Aboriginal Head Start | Vanier |
| Maky Ukrainian Dance Ensemble | Kingston |
| Malika Home Care Services | Ottawa |
| Maltby Centre, Kingston | Kingston |
| Maltby Centre, Amherstview | Amherstview |
| Maltby Centre, Find Location, Single-Session Walk-In Counselling | Kingston |
| Maltby Centre, Kingston, Ontario Autism Program - Single Point of Access | Kingston |
| Maltby Centre, Napanee | Napanee |
| Maltby Centre, Northbrook | Northbrook |
| Maltby Centre, Sharbot Lake | North Frontenac |
| Maltby Centre, Sydenham | Sydenham |
| Manoir Caledonia Manor | St Isidore de Prescott |
| Manoir McGill Manor, Hawkesbury - 342 McGill St | Hawkesbury |
| Manoir McGill Manor, Hawkesbury - 261 McGill St | Hawkesbury |
| Manoir Rockland Manor | Rockland |
| Manoir Ronald McDonald House Charities Ottawa | Ottawa |
| Manoir Wymering Manor | Ottawa |
| Manor Park Community Council | Ottawa |
| Manor Park Community Council, Ottawa, Ottawa Cares | Ottawa (City of) |
| Manotick Counselling | Manotick |
| Manotick Outreach Emergency Food Cupboard, No Physical Address | Manotick |
| Manotick Place Retirement Community | Manotick |
| Manpower, Ottawa | Ottawa (City of) |
| Manpower, Belleville | Belleville |
| MansioCare | Rockland |
| MAP Reintegration, Ottawa - Mailing Address | Ottawa |
| Maple Diabetes Prevention and Education Centre, Kingston, Diabetes Education Program | Kingston |
| Maple Family Health Team | Kingston |
| Maple Lane Stables | Kingston |
| Maple Leaf Almrausch Club, Inc. | Ottawa (City of) |
| Maple Manor Retirement Residence, Belleville, Retirement Residence | Belleville |
| Maple View Lodge, Long-Term Care Home | Athens |
| MapleCare Physiotherapy Clinic, Nepean - Woodroffe Ave | Nepean |
| MapleCare Physiotherapy Clinic, Ottawa - Bank St | Ottawa |
| MapleCare Physiotherapy Clinic, Ottawa - Wellington St | Ottawa |
| Maplewood Retirement Community | Ottawa |
| Maranatha Church, Belleville | Belleville |
| March of Dimes Canada, Head Office | East York |
| March of Dimes Canada, Ottawa - Centrepointe Dr, Rehabilitation for the Disabled | Ottawa |
| March of Dimes Canada, Brockville - Glenn Wood Pl, Acquired Brain Injury Services | Brockville |
| March of Dimes Canada, Brockville - Glenn Wood Pl, Attendant Services | Brockville |
| March of Dimes Canada, Brockville - Reynolds Dr, Supportive Housing Program | Brockville |
| March of Dimes Canada, Kingston, Rehabilitation for the Disabled | Kingston |
| March of Dimes Canada, London, Assistive Devices Program | London |
| March of Dimes Canada, Ottawa - Centrepointe Dr, Passport Program | Ottawa |
| March of Dimes Canada, Ottawa - Jockvale Rd, Rehabilitation for the Disabled | Ottawa |
| March of Dimes Canada, Toronto, Summer Holiday Program for Adults with Physical Disabilities | Toronto Downtown |
| Margaret's Housing and Community Support Services | Toronto Downtown East |
| Marguerita Residence Corporation, Subsidized Senior Citizen Apartments | Brockville |
| Marianhill Long-Term Care and Community Support Services | Pembroke |
| Marianhill Long-Term Care and Community Support Services, Pembroke, Marianhill Dementia Respite Unit | Pembroke |
| Marianhill Long-Term Care and Community Support Services, Barry's Bay, Adult Day Service | Barry's Bay |
| Marianhill Long-Term Care and Community Support Services, Eganville, Assisted Living Service | Eganville |
| Marianhill Long-Term Care and Community Support Services, Pembroke, Adult Day Service | Pembroke |
| Marianhill Long-Term Care and Community Support Services, Pembroke, Community Services | Pembroke |
| Marianhill Long-Term Care and Community Support Services, Pembroke, Homemaking Program | Pembroke |
| Marianhill Long-Term Care and Community Support Services, Pembroke, Marianhill Hospice Palliative Care Unit | Pembroke |
| Marianhill Long-Term Care and Community Support Services, Pembroke, Respite / Personal Care Program | Pembroke |
| Marianhill Long-Term Care and Community Support Services, Pembroke, Volunteer Program | Pembroke |
| Marianhill Long-Term Care and Community Support Services, Petawawa - Civic Centre Rotary Room, Adult Day Service | Petawawa |
| Marianhill Long-Term Care and Community Support Services, Petawawa - Riverview Apartments, Assisted Living Service | Petawawa |
| Marianhill Long-Term Care and Community Support Services, Pikwakanagan, Adult Day Service | Algonquins of Pikwàkanagàn First Nation |
| Marina Pharmacy, Nepean - Merivale Rd, Pharmacy | Nepean |
| Marine Museum of the Great Lakes at Kingston | Kingston |
| Mariners Park Museum | Picton |
| Marlborough Place Assisted Living | Cornwall |
| Marlborough Place III, Residence du Village | Casselman |
| Marmora & Lake Fire Department, Marmora, Marmora & Lake Fire and Emergency Services | Marmora |
| Marmora and Area Curling Club, Marmora | Marmora |
| Marmora and Lake Public Library, Marmora | Marmora |
| Marmora and Lake, Municipality of, Marmora | Marmora |
| Marmora ATV Club, Marmora | Marmora |
| Marmora Farmers' Market, Marmora, Farmers' Market | Marmora |
| Marmora Free Methodist Church, Marmora | Marmora |
| Marmora Skating Club, Marmora | Marmora |
| Marochel Manor, Long-Term Care Home | Ottawa |
| Martha's Table | Kingston |
| Martintown Mill Preservation Society Corp (The) | Martintown |
| Marvelous Mouthfuls Gourmet Cooking | Ottawa |
| Mary Homes Inc | Orleans |
| Masonic Lodge, Frederic Earl Eaton Masonic Memorial Bursary | Hawkesbury |
| Masonic Lodge, Picton - 13251 Loyalist Pkwy, Masonic Lodge, Prince Edward Lodge #18 | Picton |
| Masonic Lodge, Consecon 50 | Trenton |
| Masonic Lodge, Picton - 13251 Loyalist Pkwy, Prince Edward Chapter #31 | Picton |
| Masonic Lodge, Picton - 13251 Loyalist Pkwy, St George Preceptory, St George Preceptory #52 | Picton |
| Masonic Lodge, Picton - 13251 Loyalist Pkwy, Star in the East, Star in the East #164 | Picton |
| Masonic Lodge, Stirling | Stirling |
| Masonic Order, Belleville, The Belleville Temple Lodge A.F. and A.M. No.123 G.R.C. | Belleville |
| Master Gardeners of Ontario, Lanark County - No Physical Address | Lanark County |
| Master Gardeners of Ottawa Carleton, No Physical Address, Master Gardener Help Line | Ottawa (City of) |
| Matthew House Ottawa: Refugee Services & Furniture Bank, Refugee Services | Ottawa |
| Matthew House Ottawa: Refugee Services & Furniture Bank, Ottawa - Legget Dr, Furniture Bank | Ottawa |
| Maureen Roe Registered Psychotherapist | Barry's Bay |
| Mavencare | Toronto Downtown |
| MAX Ottawa | Ottawa (City of) |
| Maxville Manor, Maxville | Maxville |
| Maxville Manor, Maxville, Seniors Outreach Services | Maxville |
| Maxville Manor, Maxville, Seniors Outreach Services - Adult Day Program | Maxville |
| Maxville Manor, Maxville, Seniors Outreach Services - Assurance Program | Maxville |
| Maxville Manor, Maxville, Seniors Outreach Services - Caregiver Support | Maxville |
| Maxville Manor, Maxville, Seniors Outreach Services - Client Intervention and Assistance | Maxville |
| Maxville Manor, Maxville, Seniors Outreach Services - Diner's Club | Maxville |
| Maxville Manor, Maxville, Seniors Outreach Services - Foot Care Services | Maxville |
| Maxville Manor, Maxville, Seniors Outreach Services - Home Maintenance Programs | Maxville |
| Maxville Manor, Maxville, Seniors Outreach Services - Meals on Wheels | Maxville |
| Maxville Manor, Maxville, Seniors Outreach Services - Transportation Service | Maxville |
| Maxwell College of Advanced Technology, Belleville | Belleville |
| May Court Bargain Box | Ottawa |
| May Court Club of Brockville, Maycourt Club of Brockville, Thrift Shop | Brockville |
| Maynard Education & Recreation Centre Inc. | Prescott |
| Maynooth and Area Food Bank, Maynooth, Food Bank | Maynooth |
| Maynooth Farmers' Market, Maynooth, Farmers' Market | Maynooth |
| Maytree | Toronto Downtown |
| Mazinaw Powerline Snowmobile Club | Addington Highlands |
| McNab / Braeside. Municipal Office, McNab-Braeside. Muncipal Offices, City/Town Council Office | McNab-Braeside |
| McNab-Braeside. Fire Department, McNab-Braeside. Muncipal Offices, Fire Services | McNab-Braeside |
| McNeely Medical Clinic Family Health Group | Carleton Place |
| MD Connected, Ottawa, Telemedecine Healthcare | Ottawa |
| Meadowbrook Area Community Association | Kingston |
| Meals for Seniors | Whitewater |
| Meals on Wheels, Ottawa | Ottawa |
| Medical Arts Dispensary, Ottawa - Riverside Dr, Pharmacy | Ottawa |
| Medical Arts Pharmacy, Cornwall - 13th St E, Pharmacy | Cornwall |
| Medical Arts Pharmacy, Cornwall - Montreal Rd, Pharmacy | Cornwall |
| Medical Care Clinics, Kilborn Medical Centre | Ottawa |
| Medical Equipment Collection Foundation | Ottawa (City of) |
| Medical Family Planning, Ottawa, Abortion Clinic | Ottawa (City of) |
| Medical Imaging Embrun-Casselman, Embrun | Embrun |
| Medical Imaging Embrun-Casselman, Casselman | Casselman |
| Medical Office & Dispensary | St Eugene |
| Medical Pharmacies Group Limited, Cornwall - Pitt St, Pharmacy | Cornwall |
| Medical Pharmacies Group Limited, Ottawa - Smyth Rd, Pharmacy | Ottawa |
| Medical Pharmacies Group Limited, Ottawa - Broadview Ave, Pharmacy | Ottawa |
| Medical Pharmacies Group Limited, Ottawa - Carling Ave, Pharmacy | Ottawa |
| Medical Pharmacies Group Limited, Ottawa - Kaladar Ave, Pharmacy | Ottawa |
| Medical Pharmacies Group Limited, Ottawa - Algoma Rd, Pharmacy | Ottawa |
| Medical Pharmacies Group Limited, Ottawa - Russell Rd, Pharmacy | Ottawa |
| MedicAlert Foundation Canada | North York East |
| Medi-Call Canada | Ottawa |
| Medicine Shoppe, Ottawa - Kent St, Pharmacy | Ottawa |
| Medicine Shoppe, Gloucester - Canotek Rd, Pharmacy | Gloucester |
| Medigas, Cornwall | Cornwall |
| Medigas, Ottawa | Ottawa |
| Medigas, Arnprior | Arnprior |
| Medigas, Pembroke | Pembroke |
| Medigas, Belleville, Home Medical Equipment | Belleville |
| Medisys, Travel Health Clinic | Nepean |
| Medisystem Pharmacy, Ottawa - Camelot Dr, Pharmacy | Ottawa |
| MedSleep, Pembroke | Pembroke |
| MedSleep, Carleton Place | Carleton Place |
| Medsport Ottawa | Ottawa |
| Med-Team Group | Kanata |
| Melos Choir and Period Instruments | Kingston |
| Memory Matters | Ottawa |
| Men and Healing | Ottawa |
| Ménard Safety Courses | Embrun |
| Meningitis Research Foundation of Canada | Waterloo |
| Men's Counselling Services, Brockville | Brockville |
| Men's Counselling Services, Kingston | Kingston |
| Mensa Canada Society | Kingston |
| Mental Health Commission of Canada | Ottawa |
| Mental Illness Caregivers Association of Canada, Ottawa - Colonnade Rd | Ottawa |
| Mental Illness Caregivers Association of Canada, Ottawa - Merivale Rd, Friendship Support Group | Ottawa |
| Meridian Theatres at Centrepointe | Ottawa |
| Merivale Medical Imaging | Ottawa |
| Merrickville and District Historical Society, Merrickville Blockhouse Museum | Merrickville |
| Merrickville Day Nursery School, Merrickville - Lewis St W | Merrickville |
| Merrickville Pastoral Charge, Merickville - St. Lawrence St N, Merrickville United Church | Merrickville |
| Merrickville Soccer Club | Merrickville-Wolford |
| Merrickville. Fire Department, Merrickville-Wolford. Municipal Offices, Fire Services | Merrickville |
| Merrickville-Wolford Public Library, Public Library | Merrickville |
| Merrickville-Wolford. Municipal Offices | Merrickville |
| Merrickville-Wolford. Recreation Department, Centennial Hall, Easton's Corners | Easton's Corners |
| META Employment Services, Belleville Head Office, Ontario Employment Services | Belleville |
| META Employment Services, Belleville Head Office, Supported Employment, Employment Services | Belleville |
| META Employment Services, Marmora, Ontario Employment Services | Marmora |
| Metcalfe Pharmacy, Metcalfe - Victoria St, Pharmacy | Metcalfe |
| Métis Nation of Ontario, Ottawa - Slater St | Ottawa |
| Métis Nation of Ontario, Bancroft, Healing and Wellness | Bancroft |
| Métis Nation of Ontario, Kingston | Kingston |
| Métis Nation of Ontario, Ottawa - Montreal Rd, Ending Violence & Exploitation Outreach Program | Vanier |
| Métis Nation of Ontario, Ottawa - Montreal Rd, Healing and Wellness Branch Services - Community Support Services - Medical Transportation Services | Ottawa |
| Métis Nation of Ontario, Ottawa - Slater St, Aboriginal Diabetes Education Project | Ottawa |
| Métis Nation of Ontario, Ottawa - Slater St, Aboriginal Healing and Wellness Program | Ottawa |
| Métis Nation of Ontario, Ottawa - Slater St, Education and Training | Ottawa |
| Métis Nation of Ontario, Ottawa - Slater St, Healing and Wellness Branch - Community Support Services Program - Friendly Visits | Ottawa |
| Métis Nation of Ontario, Ottawa - Slater St, Healing and Wellness Branch - Victim Services Program | Ottawa |
| Métis Nation of Ontario, Ottawa - Slater St, Healing and Wellness Branch Services - Community Support Services | Ottawa |
| Métis Nation of Ontario, Ottawa - Slater St, Healing and Wellness Branch Services - Community Support Services - Care Giver Support Services | Ottawa |
| Métis Nation of Ontario, Renfrew, Aging At Home Program | Renfrew |
| Métis Nation of Ontario, Renfrew, Healing and Wellness Programs | Renfrew |
| Métis Nation of Ontario, Renfrew, Métis Healthy Babies Healthy Children Program | Renfrew |
| Metro Pharmacy, Belleville, Pharmacy Services | Belleville |
| Metro Pharmacy, Trenton, Pharmacy Services | Quinte West |
| Metroland Media, Kingston Heritage / Frontenac Gazette | Kingston |
| Michael R. Manthorpe, M.S.W., R.S.W., R.M.F.T.,, Belleville, Counselling and Psychotherapy | Belleville |
| Michele Heights Community House | Ottawa |
| Midwifery Collective of Ottawa (The) | Ottawa |
| Midwifery Group of Ottawa | Ottawa |
| Mike Powell Counselling Services | Pembroke |
| Military Communications and Electronics Museum | Kingston |
| Military Family Resource Centre of the National Capital Region, National Capital Region | Ottawa |
| Military Family Resource Centre of the National Capital Region, National Capital Region, Emergency Childcare Services | Ottawa |
| Military Family Resource Centre of the National Capital Region, National Capital Region, Playgroups | Ottawa |
| Military Family Resource Centre of the National Capital Region, National Capital Region, Playtime Platoon Child Care Centre | Ottawa |
| Miller Museum of Geology | Kingston |
| Mindful Movements, Belleville, Pilates Yoga Studio | Belleville |
| Miniature Enthusiasts of Kingston and Area | Kingston |
| Ministry of Solicitor General, Bancroft, Probation and Parole | Bancroft |
| Ministry of Solicitor General, Belleville, Probation and Parole | Belleville |
| Ministry of Solicitor General, Picton, Probation and Parole | Picton |
| Ministry of Solicitor General, Quinte West, Probation and Parole Services | Quinte West |
| Minwaashin Lodge - Indigenous Women's Support Centre, Ottawa | Ottawa |
| Minwaashin Lodge - Indigenous Women's Support Centre, Ottawa, Street Team Outreach Mobile | Ottawa |
| Minwaashin Lodge - Indigenous Women's Support Centre, Unpublished, Oshki Kizis Lodge | Ottawa |
| Miramichi Lodge, Pembroke | Pembroke |
| Miramichi Lodge, Pembroke, Auxiliary | Pembroke |
| Miramichi Lodge, Pembroke, Get W.I.T.H It! Community Walking Program, High Activity Level | Pembroke |
| Miramichi Lodge, Pembroke, Meals on Wheels | Pembroke |
| Miramichi Lodge, Pembroke, Recreation and Rehabilitation | Pembroke |
| Miramichi Lodge, Pembroke, Respite Program | Pembroke |
| Miriam Centre | Orleans |
| Missing Children's Network | Québec |
| Mission Thrift Store, Kingston | Kingston |
| Mission Thrift Store, Ottawa | Ottawa (City of) |
| Mission Thrift Store, Orléans | Orleans |
| Mission Thrift Store, Trenton, Thrift Store | Quinte West |
| Mission Thrift Store, Belleville, Thrift Store | Belleville |
| Mississippi Little League | Carleton Place |
| Mississippi Madawaska Land Trust, Mississippi Valley Conservation Centre | Carleton Place |
| Mississippi Mills Public Library, Almonte, Public Library | Almonte |
| Mississippi Mills Public Library, Pakenham Branch, Public Library | Pakenham |
| Mississippi Mills. Fire Department | Almonte |
| Mississippi Mills. Municipal Offices | Almonte |
| Mississippi Mills. Municipal Offices, Almonte - 110 Paterson St, Holy Name of Mary School Age Club | Almonte |
| Mississippi Mills. Municipal Offices, Almonte - 175 Paterson St, R Tait McKenzie School Age Club | Almonte |
| Mississippi Mills. Municipal Offices, Almonte - King St, Naismith School Age Club | Almonte |
| Mississippi Mills. Municipal Offices, Almonte - State St, Almonte Day Care Centre | Almonte |
| Mississippi Mills. Municipal Offices, Almonte Community Centre, Line Dancing | Almonte |
| Mississippi Mills. Municipal Offices, Almonte Community Centre, Public Skating | Almonte |
| Mississippi Mills. Municipal Offices, Almonte Community Centre, Senior's Shuffleboard | Almonte |
| Mississippi Mills. Municipal Offices, Stewart Community Centre, Public Skating | Pakenham |
| Mississippi Mills. Municipal Offices, Stewart Community Centre, Senior Friendly Aerobics | Pakenham |
| Mississippi Mills. Municipal Offices, Stewart Community Centre, Senior's Shuffleboard | Pakenham |
| Mississippi Squares Dance Club - Modern Square Dancing, Find Location | Carleton Place |
| Mississippi Valley Conservation Authority, Mill of Kintail, Conservation Area | Almonte |
| Mississippi Valley Field Naturalists | Almonte |
| Mississippi Valley Textile Museum | Almonte |
| Modern Fuel Artist-Run Centre, Kingston Artists Association Inc | Kingston |
| Mohawk Council of Akwesasne | Akwesasne |
| Mohawk Council of Akwesasne, Akwesasne - 95 Snye School Rd, Department of Health - Ratinatare Outreach Day Services - Congregate Dining Program | Akwesasne |
| Mohawk Council of Akwesasne, Akwesasne - 95 Snye School Rd, Department of Health - Ratinatare Outreach Day Services - Senior Day Program | Akwesasne |
| Mohawk Council of Akwesasne, Akwesasne - Community Centre Rd, Community and Social Services - Akwesasne Private Home Day Care Program | Akwesasne |
| Mohawk Council of Akwesasne, Akwesasne - Community Centre Rd, Community and Social Services - Kawehnoke Child Care Centre | Akwesasne |
| Mohawk Council of Akwesasne, Akwesasne - Hilltop Dr, Department of Health - Diabetes Education Program | Akwesasne |
| Mohawk Council of Akwesasne, Akwesasne - International Rd, Ahkwesahsne Mohawk Board of Education | Akwesasne |
| Mohawk Council of Akwesasne, Akwesasne - Iohahi:io Rd, Iohahi:io Akwesasne Adult Education Training Center - Literacy and Basic Skills | Akwesasne |
| Mohawk Council of Akwesasne, Akwesasne - Kawehnoke Apartments Rd, Department of Health - Tsiiokwanonhso:te Long Term Care Facility | Akwesasne |
| Mohawk Council of Akwesasne, Akwesasne Mohawk Board of Education - Akwesasne Head Start Program | Akwesasne |
| Mohawk Council of Akwesasne, Community and Social Services - Iethinisten:ha Akwesasne Family Wellness Program | Akwesasne |
| Mohawk Council of Akwesasne, Akwesasne - Tewesateni Rd, Department of Health - Home Care and Home Support | Akwesasne |
| Mohawk Council of Akwesasne, Saint-Régis, Department of Health - Kanonhkwat’sheri:io Health Facility | Akwesasne |
| Mohawk Council of Akwesasne, Syne, Community and Social Services - TSI' Snaihne Child Care Center | Akwesasne |
| Mohawk Pentecostal Church, Tyendinaga, Tyendinaga, Mohawk Pentecostal Church | Tyendinaga Mohawk Territory |
| Mohawks Bay of Quinte/Kanhiote - Tyendinaga Territory Public Library | Tyendinaga Mohawk Territory |
| Mohawks of the Bay of Quinte, Tyendinaga Mohawk Territory - 24 Meadow Dr, First Nation Administration | Tyendinaga Mohawk Territory |
| Mohawks of the Bay of Quinte, Kingston, Enyonkwa’nikonhriyo:hake Program (GoodMinds) | Kingston |
| Mohawks of the Bay of Quinte, Shannonville, Tyendinaga Fitness Resource Centre | Shannonville |
| Mohawks of the Bay of Quinte, Tyendinaga Mohawk Community Wellbeing Centre, Indigenous Victim Services | Tyendinaga Mohawk Territory |
| Mohawks of the Bay of Quinte, Tyendinaga Mohawk Territory - 24 Meadow Dr, Community Health program-Moms-in-Waiting Program | Tyendinaga Mohawk Territory |
| Mohawks of the Bay of Quinte, Tyendinaga Mohawk Territory - 24 Meadow Dr, Eksa O'Kon:a Childcare Centre | Tyendinaga Mohawk Territory |
| Mohawks of the Bay of Quinte, Tyendinaga Mohawk Territory - 50 Meadow Dr, Community Wellbeing | Tyendinaga Mohawk Territory |
| Mohawks of the Bay of Quinte, Tyendinaga Mohawk Territory - 50 Meadow Dr, Community Wellbeing-Meals On Wheels (Hot) | Tyendinaga Mohawk Territory |
| Mohawks of the Bay of Quinte, Tyendinaga Mohawk Territory - 50 Meadow Dr, Home and Community Care | Tyendinaga Mohawk Territory |
| Mohawks of the Bay of Quinte, Tyendinaga Mohawk Territory - 50 Meadow Dr, Mohawk Family Services | Tyendinaga Mohawk Territory |
| Mohawks of the Bay of Quinte, Tyendinaga Mohawk Territory - 50 Meadow Dr, Social Services Department | Tyendinaga Mohawk Territory |
| Mohawks of the Bay of Quinte, Tyendinaga Mohawk Territory - Deserontyon Dr, Tahatikonhsotóntie Head Start | Tyendinaga Mohawk Territory |
| Mohawks of the Bay of Quinte, Tyendinaga Mohawk Territory - G-Tech Training Centre, Community Health program - Breastfeeding Support Program | Tyendinaga Mohawk Territory |
| Mohawks of the Bay of Quinte, Tyendinaga Mohawk Territory - Unpublished, Red Cedars Shelter | Tyendinaga Mohawk Territory |
| Moira Lake Property Owners' Association, Madoc | Madoc |
| Mommy Connections, Ottawa - Find Location | Ottawa (City of) |
| Mon Plaisir Residence | Vanier |
| Monarch Maternal and Newborn Health, Ottawa - Cleopatra Dr | Ottawa |
| Monarch Maternal and Newborn Health, Ottawa - Bank St | Ottawa |
| Montague. Fire Department, Montague. Municipal Offices, Fire Services | Montague |
| Montague. Municipal Offices | Smiths Falls |
| Montfort Academic Family Health Team | Ottawa (City of) |
| Montfort Renaissance, Ottawa - 162 Murray St, Résidence Montfort Renaissance | Ottawa |
| Montfort Renaissance, Ottawa - 159 Murray St, Centre de services Guigues | Ottawa |
| Montfort Renaissance, Maison Billy Buffett, Men's Residential Stabilization Program | Ottawa (City of) |
| Montfort Renaissance, Maison Gilles Chagnon, Women's Residential Stabilization Program | Ottawa (City of) |
| Montfort Renaissance, Ottawa - 159 Murray St, Centre de services Guigues - Mon Centre à distance | Ottawa |
| Montfort Renaissance, Ottawa - 159 Murray St, Centre de services Guigues - Programme de jour | Ottawa |
| Montfort Renaissance, Ottawa - 159 Murray St, Centre de services Guigues - Programme social et récréatif | Ottawa |
| Montfort Renaissance, Ottawa - 159 Murray St, Centre de services Guigues - Soins des pieds | Ottawa |
| Montfort Renaissance, Ottawa - 159 Murray St, Centre de services Guigues - Soutien Palliatif | Ottawa |
| Montfort Renaissance, Ottawa - 159 Murray St, Centre de services Guigues - Transport et accompagnement | Ottawa |
| Montfort Renaissance, Ottawa - 159 Murray St, Centre de services Guigues - Visites amicales / Télébonjour | Ottawa |
| Montfort Renaissance, Ottawa - 162 Murray St, Housing Services | Ottawa |
| Montfort Renaissance, Ottawa - 1777 Montreal Rd, Ottawa Withdrawal Management Centre | Ottawa |
| Montfort Renaissance, Ottawa - 338 Montreal Rd, Mental Health Services | Vanier |
| Montfort Renaissance, Ottawa - 338 Montreal Rd, Service Access to Recovery | Ottawa |
| Montfort Renaissance, Ottawa - 346 Montreal Rd, Les Ateliers de L'Élan | Vanier |
| Montreal Road Medical Centre | Ottawa |
| Mood Disorders Association of Ontario | Toronto Downtown North |
| Mood Disorders of Ottawa, Mailing Address | Ottawa |
| Mood Disorders Support Group of Kingston | Kingston |
| Moose Creek Medical Centre, Moose Creek Medical Clinic | Moose Creek |
| Moose Creek Villa | Moose Creek |
| Moral Courage, No Physical Address | Canada |
| More Than Just Babysitting Child Care Centre, Kemptville - Tophmar Dr | Kemptville |
| More Than Just Babysitting Child Care Centre, Kemptville - Clothier St | Kemptville |
| More Than Just Babysitting Child Care Centre, Prescott - Jessup St, TR Leger Site | Prescott |
| More Than Just Babysitting Child Care Centre Inc | Prescott |
| Morgentaler Clinic, Abortion Services | Ottawa |
| Morningstar Mission | Napanee |
| Morrisburg Pentecostal Tabernacle | Morrisburg |
| Morrison Gardens Community House | Ottawa |
| Mortgages Act | Ottawa |
| Moscow United Church | Yarker |
| Most Holy Name of Jesus Roman Catholic Parish | Pembroke |
| Mothercraft Ottawa | Ottawa |
| Mothercraft Ottawa, Birth and Parent Companion Program | Ottawa |
| Mothercraft Ottawa, EarlyON Child and Family Centre | Ottawa |
| Mothercraft Ottawa, New Dads: Providing Postpartum Support Drop-In | Ottawa |
| Mothercraft Ottawa, Postpartum Support Drop-in for Women | Ottawa |
| Mothers Against Drunk Driving (MADD) Canada, Ottawa Chapter | Ottawa (City of) |
| Mothers Against Drunk Driving Canada, Quinte Chapter | Belleville |
| Mothers Offering Mutual Support | Ottawa (City of) |
| Motion Kingston | Kingston |
| Motion Matters, Ottawa - 170 Laurier Ave W, Physiotherapy and Sports Injury Clinic | Ottawa (City of) |
| Motion Matters, Ottawa - 164 Laurier Ave W, Exercise and Rehabilitation Centre | Ottawa (City of) |
| Motion Ottawa | Ottawa (City of) |
| Mount Pakenham Ski Resort | Pakenham |
| Mountain River Child Care Association, Deep River, Children's Junction Day Care | Deep River |
| Mouvement d'implication francophone d'Orléans, Ottawa | Orleans |
| Mouvement d'implication francophone d'Orléans, Find Location, Spectacles | Orleans |
| Mouvement d'implication francophone d'Orléans, Ottawa, Activités récréatives | Orleans |
| Mouvement d'implication francophone d'Orléans, Ottawa, Camps | Orleans |
| Mouvement d'implication francophone d'Orléans, Ottawa, Centre Séraphin-Marion d'Orléans | Orleans |
| Mouvement d'implication francophone d'Orléans, Ottawa, École de musique | Orleans |
| Mouvement d'implication francophone d'Orléans, Ottawa, Galerie d’arts Eugène-Racette | Orleans |
| Mouvement d'implication francophone d'Orléans, Ottawa, Objectif Cinéma | Orleans |
| Mouvement d'implication francophone d'Orléans, Ottawa, Services de garde | Orleans |
| Moving Forward Matters | Ottawa |
| Msgr Rudy Villeneuve Foundation | Cornwall |
| Mulberry Waldorf School | Kingston |
| Multifaith Housing Initiative | Ottawa (City of) |
| Multiple Birth Families Association | Ottawa (City of) |
| Multiple Sclerosis Society of Canada, Ottawa | Ottawa |
| Multiple Sclerosis Society of Canada, Belleville, Multiple Sclerosis Quinte Support Group | Belleville |
| Multiple Sclerosis Society of Canada, Cornwall | Cornwall |
| Multiple Sclerosis Society of Canada, Frontenac, Lennox and Addington Counties | Kingston |
| Multiple Sclerosis Society of Canada, Leeds & Grenville (United Counties of) | Brockville |
| Multiple Sclerosis Society of Canada, Pembroke, Multiple Sclerosis Society of Canada Support Group | Pembroke |
| Multiple Sclerosis Society of Canada, Renfrew, Multiple Sclerosis Society of Canada Support Group | Renfrew |
| MultiSport Canada, K-Town Triathlon | Kingston |
| Multitrek | Ottawa |
| Mulvihill Drug Mart, Petawawa - Petawawa Blvd, Pharmacy | Petawawa |
| Mulvihill Drug Mart, Pembroke - Pembroke St W | Pembroke |
| Mulvihill Drug Mart, Pembroke - Deacon St | Pembroke |
| Mulvihill Drug Mart, Pembroke - Pembroke St E | Pembroke |
| Mulvihill Drug Mart, Pembroke - Pembroke St W, Ostomy Clinic | Pembroke |
| Municipality of Hastings Highlands | Maynooth |
| Murney Tower National Historic Site | Kingston |
| Muscular Dystrophy Canada, Ottawa Chapter | Ottawa |
| Muscular Dystrophy Canada - Ontario Regional Office | Toronto Downtown North |
| Musée Bytown Museum | Ottawa |
| Musée Vankleek Hill Museum | Vankleek Hill |
| Museum of Health Care at Kingston | Kingston |
| Music At Port Milford Festival and Summer Academy, Milford | Prince Edward County |
| Music for Young Children, Kanata - Head Office | Kanata |
| MusicMates | Kingston |
| Muslim Family Services | Ottawa |
| Muslim Non-Profit Housing Corporation of Ottawa-Carleton | Ottawa |
| Mutual Aid Katarokwi, Kingston | Kingston |
| My Ottawa Maternity Medical Associates | Ottawa |
| My Place Home Care | Ottawa |
| MyQuit, No Physical Address | Ottawa |