Amey Infrastructure Services

Arup Environmental

Atkins

BAA

Balfour Beatty Major Projects

Barnet and Chase Farm Hospitals NHS Trust

Barratt West London

BdR Civil and Structural Engineers

Bell Fischer Landscape Architects

Berkeley Homes

Black & Veatch

BTP Hyder

BUJ Architects

CABE Space

Capita Symonds

Care Principles

CIRIA

Colvin & Moggridge

Corus Rail

Costain

Countryside Properties

Crystal Palace Park London

Donaldson Associates

Davis Langdon LLP

Dorset Healthcare NHS Trust

DP9 Planners

East Architects

Environ UK

EC Harris

EDAW

English Nature

Environment Agency

Gifford

GLA

Gleeson Homes

GL Hearn

Greenpeace

Goals Soccer Centres

Groundwork Trusts

Hastoe Housing Association

Helmsley Orrell Partnership

Hochtief Construction Ltd

Indigo Planning Ltd

Innogy (RWE)

J & L Gibbons Landscape Architects

Just Ecology Ltd

Kent County Council

Kier

Laing Homes

Laing O'Rourke

Land Use Consultants

Latz + Partners

London Boroughs: Barnet, Barking & Dagenham, Bexley, Camden, Enfield, Greenwich, Hackney, Islington, Lewisham, Merton, Wandsworth, Waltham Forest and Westminster

Lee Valley Regional Park Authority

London Wildlife Trust and London Conservation Services

Martha Schwartz

Mayer Brown

Mouchell Parkman

NPS Property Consultants Ltd

Newhall Projects Ltd

Nisbet and Partners

Norton Associates

Norwest Holst

Osborne

Owen Williams

Peter Brett Associates

Project Climate Ltd

PRP Architects

Quantic Associates

Raymond Brown

RMP

Robinson Kenning & Gallagher

Roger Evans Associates

RPS Planning

RSPB

RWE Npower

Savills

Skanska Construction Ltd

St James's Homes

Stiles, Harold and Williams

Stock Woolstencroft

Tebbot & Wells Architects

Telford Homes Plc

Temple Environmental

Thames Water Property

Tomei & Mackley

Turley Associates

Urban Evolution

URS Corporation

Waterman Environmental

Whitelaw & Turkington

Wilkinson Eyre

WSP