| Maple View Retirement Residence | Norwood |
| March of Dimes Canada (GTA) | Toronto |
| March of Dimes Canada (MODC), Peterborough, Aphasia and Communication Disabilities (ACD) Program, Peterborough | Peterborough |
| Marycrest At Inglewood Seniors' Residence, Peterborough | Peterborough |
| Maryland Place | Peterborough |
| ME / FM Association of Peterborough and District, Peterborough | Peterborough |
| Medigas, Peterborough | Peterborough |
| Metro, Peterborough | Peterborough |
| Millbrook and District Food Share, Food Bank | Cavan Monaghan |
| Millbrook Cavan Historical Society | Cavan Monaghan |
| Millbrook Non-Profit Housing Corporation, Millbrook Manor | Millbrook |
| Ministry of Tourism, Culture and Gaming and Ministry of Sport, Peterborough, Regional Tourism Unit | Peterborough |
| Moloney Project Development Corp, Argyle St Apartments | Peterborough |
| Moloney Project Development Corp, Hazelbrae Place | Peterborough |
| Moloney Project Development Corp, The Loyola | Peterborough |
| Moloney Project Development Corp, Victoria Park | Peterborough |
| Mood Disorders Association of Ontario | Toronto |
| Morello's Your Independent Grocer | Peterborough |
| Motion, Peterborough | Peterborough |
| Municipal Office. Asphodel-Norwood, Fire Department - Station 1 (Norwood), Fire Department | Asphodel-Norwood |
| Municipal Office. Asphodel-Norwood | Asphodel-Norwood |
| Municipal Office. Asphodel-Norwood, Norwood Branch, Asphodel-Norwood Public Library | Asphodel-Norwood |
| Municipal Office. Asphodel-Norwood, Westwood Branch, Asphodel-Norwood Public Library | Asphodel-Norwood |
| Murray Street Baptist Church | Peterborough |
| Murray Street Baptist Church, Outreach Ministry | Peterborough |
