- ADM Architects
- Alan Scott Ecological Consultants
- Bancroft’s School
- Black and Veatch
- Capita Symonds Group
- Environment Agency
- Ecology Consultancy Limited
- Friends of the River Crane (FORCE)
- Greater London Authority
- Groundwork
- GDP Architects
- Halcrow
- Historic England
- Historic Palaces
- IMG
- JCA Arboricultural Consultants
- Kier
- Kingston University
- Landscape Partnership
- L.B. Brent
- L.B.Merton
- L.B.Waltham Forest
- L.B. Lewisham
- L.B. Redbridge
- L.B. Southwark
- LB Wandsworth
- Marches Ecology
- Mouchel Consulting Ltd
- Natural England
- Nicholas Hare Architects
- Royal Parks Authority
- R.B. Kingston upon Thames
- R.B.of Richmond upon Thames
- Surrey University
- Skanska
- Thames Water
- Thames Landscape Strategy
- Thames 21
- TP Bennet Architects
- Woodland Trust
- Wilmot Dixon