- Aquamaintain
- Dow Jones Architects
- English Heritage Trust
- Environment Agency
- Friends of the River Crane (FORCE)
- Historic Royal Palaces
- IMG
- Kingston University
- Landscape Partnership
- L.B. Brent
- L.B.Merton
- L.B.Waltham Forest
- L.B. Lewisham
- L.B. Redbridge
- L.B. Sutton
- LB Wandsworth
- Royal Parks Authority
- Royal Botanic Gardens Kew
- R.B.of Richmond upon Thames
- Ruth Willmot Associates
- South East Rivers Trust
- Sports Facility Planning and Design