Name
 | URL | Country
| Market Cap (US$)
|
|---|
| Suez S.A. | http://www.suez.com/ | France | 61,276 |
| Veolia Environnement | http://www.veoliaenvironnement.com | France | 14,530 |
| Suez Environnement Company | http://www.suez-environnement.com | France | 8,573 |
| United Utilities Group PLC | http://www.unitedutilities.com/ | United Kingdom | 6,479 |
| Severn Trent plc | http://www.severn-trent.com | United Kingdom | 4,164 |
| Sociedad General de Aguas de Barcelona, S.A. | http://www.agbar.es | Spain | 3,364 |
| American Water Works Company, Inc. | http://www.amwater.com | United States | 3,278 |
| Shanghai Chengtou Holding Co., Ltd. | NA | China | 2,834 |
| Aqua America, Inc. | http://www.aquaamerica.com | United States | 2,803 |
| Pennon Group plc | http://www.pennon-group.co.uk/ | United Kingdom | 2,769 |
| Companhia de Saneamento Basico Sao Paulo (SABESP) | http://www.sabesp.com.br | Brazil | 2,750 |
| Northumbrian Water Group plc | http://www.nwl.co.uk/ | United Kingdom | 2,006 |
| Gelsenwasser AG | http://www.gelsenwasser.de | Germany | 2,005 |
| Nalco Holding Company | http://www.nalco.com/ | United States | 1,699 |
| Aguas Andinas S.A. | http://www.aguasandinas.cl/ | Chile | 1,697 |
| Beijing Capital Co Ltd. | NA | China | 1,471 |
| Homeserve plc | http://www.homeserve.com | United Kingdom | 1,003 |
| California Water Service Group | http://www.calwater.com | United States | 938 |
| Companhia De Saneamento De Minas Gerais. | http://www.copasa.com.br/ | Brazil | 850 |
| Athens Water Supply & Sewarage Co | http://www.eydap.gr/ | Greece | 789 |
|
