Ian Heptonstall (Action Sustainability), Hilary Hurrey (Action Sustainability), Emma-Jane Allen (Action Sustainability), Ursula Cooper (Action Sustainability), Mark Turner (Action Sustainability), Danielle Bistacchi (Action Sustainability), Ian Nicholson (Responsible Solutions), Peter Johnson (Kier), Dan Firth (Interserve), Aidan Franks (Costain), Julia Barratt (Willmott Dixon), Eddy Taylor (Laing O’Rourke), Ross Primmer (Action Sustainabilty), Jason Nichols (HOCHTIEF)