Name
 | URL | Country
| Market Cap (US$)
|
|---|
| Suez S.A. | http://www.suez.com/ | France | 60,199 |
| Suez Environnement Company | http://www.suez-environnement.com | France | 12,017 |
| Severn Trent plc | http://www.severn-trent.com | United Kingdom | 5,268 |
| Pennon Group plc | http://www.pennon-group.co.uk/ | United Kingdom | 3,608 |
| American Water Works Company, Inc. | http://www.amwater.com | United States | 3,122 |
| Companhia de Saneamento Basico Sao Paulo (SABESP) | http://www.sabesp.com.br | Brazil | 3,044 |
| Sociedad General de Aguas de Barcelona, S.A. | http://www.agbar.es | Spain | 2,868 |
| Aqua America, Inc. | http://www.aquaamerica.com | United States | 2,306 |
| Nalco Holding Company | http://www.nalco.com/ | United States | 2,186 |
| Shanghai Chengtou Holding Co., Ltd. | NA | China | 2,127 |
| Gelsenwasser AG | http://www.gelsenwasser.de | Germany | 2,123 |
| Aguas Andinas S.A. | http://www.aguasandinas.cl/ | Chile | 2,042 |
| Beijing Capital Co Ltd. | NA | China | 1,739 |
| Homeserve plc | http://www.homeserve.com | United Kingdom | 1,718 |
| Athens Water Supply & Sewarage Co | http://www.eydap.gr/ | Greece | 1,219 |
| Companhia De Saneamento De Minas Gerais. | http://www.copasa.com.br/ | Brazil | 973 |
| California Water Service Group | http://www.calwater.com | United States | 754 |
| Empresa de Obras Sanitarias de Valparaiso S.A. (ESVAL) | http://www.esval.cl/ | Chile | 749 |
| Manila Water Company Incorporated | http://www.manilawater.com | Philippines | 676 |
| American States Water Company | http://www.aswater.com | United States | 640 |
|
