Services for M
- Macmillan Cancer Information and Support Centre
- MAD Academy
- Madhura Mirashi - Childminder
- Maidenhead becomes Moominvalley this Christmas
- Maidenhead Junior Chess Club
- Manoja Fernando - Childminder
- Manor Park Day Centre
- Maria Williams - Childminder
- Marish Primary - Afterschool Club
- Marish Primary School
- Marish Primary School - Breakfast Club
- Mary Broumpton - Childminder
- Mary's Daycare - Childminder
- Maternity Action
- Max Card - Slough Children's Disability Register
- Mediation and disagreement resolution services
- Mediation Bucks
- Meet and Mingle
- Meetup
- Melanie Tolley - Childminder
- Men's Advice Line - Help and support for male victims of domestic violence
- Men's Rugby Training
- Mencap Direct
- Meningitis Research Foundation
- Mental Health First Aid
- Mentally Healthy Schools
- Michelle Browne - Childminder
- Michelle Carter - Childminder
- Mighty Acorns Day Nursery
- Mighty Acorns Day Nursery - Afterschool Club
- Mighty Acorns Day Nursery - Breakfast Club
- Mighty Acorns Day Nursery - Holiday Club
- Millside
- Mind
- Mind Body and Sole
- Mind The Gap Year
- MindEd
- Miscarriage Association
- The Mix
- Mobility Equipment Hire Direct Ltd
- Mobility service
- The Money Advice Service
- Monksfield Way Children's Centre Early Years Service - Afterschool Club
- Monksfield Way Children's Centre Early Years Service - Breakfast Club
- Monksfield Way Children's Centre Early Years Service - Creche
- Monksfield Way Children's Centre Early Years Service - Day nursery
- Monksfield Way Children's Centre Early Years Service - Holiday Club
- Monksfield Way Children's Centre Early Years Service - Sessional Care
- Montem Academy
- Montem Leisure Centre - Everyone Active
- MOORE Pilates
- Motivation Dance Academy
- The Move Up Project
- Mucky Pups - Parent & Toddler group
- Multi-Sports Club
- Multiple Births Foundation
- Muscular Dystrophy Campaign
- Music Time - Wexham Road Children's Centre