1 - Nikken Sekkei, Japan, http://www.nikken.co.jp/2 - Gensler, USA, http://www.gensler.com/3 - HOK, USA, http://www.hok.com/4 - Aedas, UK, http://www.aedas.com/5 - SOM, USA, http://www.som.com/6 - BDP international, UK, http://www.bdp.co.uk/7 - Perkins & Will, USA, http://www.perkinswill.com/8 - Foster & Partners, UK, http://www.fosterandpartners.com/9 - RTKL Associates, USA, http://www.rtkl.com