- Development Trust Association – Commonside is a member of the DTA
- London Borough of Merton – services for Older People, Children, Schools, Families, Extended Services, Youth Services
- Housing, Environment, Regeneration & Leisure
- Sutton and Merton PCT
- Merton Voluntary Services Council
- CommTech – Community Technology Project
- London Learning Consortium
- Moat Housing
- Phoenix Housing Association
- Merton Priory Homes Youth Centre
- Pollards Hill Safer Neighbourhoods Team
- Harris Academy Merton
- Hanta Associates and NT Assembly
- SW London and St George’s Mental Health NHS Trust
- The Wildlife Trusts
- Mind
- Her Majesty’s Revenue and Customs
- Merton Adult Education
- Citizens Advice Bureau
- Carers Support Merton
- Merton Chambers of Commerce
- Jobcentre Plus
- Grenfell Housing
- Longthornton Planning Working Group
- Siobhain McDonagh MP
- Polka Theatre
- Merton Volunteer Centre
- Wimbledon Guild
- The Vine Project
- Worcester Polytechnic Institute (USA)
- St Mark’s Family Centre
- Sport England
- Social Market Foundation
- Sutton and Merton Mediation Services
- North East Mitcham Community Association
- Children and Young People Interagency Forum (Merton)
- Child Poverty Action Group (Merton)
- The Merton Partnership
- Sustainable Communities and Transport Thematic Partnership (Merton)
- Merton Adult Learning Partnership
- Croydon, Sutton, Merton Credit Union Partnership
- Pollards Hill Library Board
- East Mitcham Neighbourhood Partnership
- Dignity in Care
- Department of Health Care Networks
- Merton Volunteering Strategy Board
- Merton Economic Partnership
- Sustainable Communities Housing Sub-group (Merton)
- Merton Teen Pregnancy Partnership Board
- Merton Link
- Merton Intergenerational Partnership
