| Rue Colonel Bourg 127 |
| 1140 Brussel, België |
| +32 (0)2 7064080 |
| +32 (0)2 7064081 |
| http://www.eureau.org |
| Alliance House |
| 12 Caxton Street |
| London SW1H 0QS, Engeland |
| +44 207 654 5500 |
| +44 207 654 5555 |
| http://www.iwahq.org |
| Ingenieurshuis - K VIV |
| Desguinlei 214 |
| 2018 Antwerpen, België |
| +32 (0)3 260 08 40 |
| +32 (0)3 216 06 89 |
| http://www.kviv.be |
| 601 Wuthe Street |
| Alexandria, VA |
| 22314-1994, Verenigde Staten |
| 1 703 684 2400 |
| 0 703 684 24 92 |
| http://www.wef.org |
| Theodor-Heuss-Allee 17 |
| D-53773 Hennef, Duitsland |
| +49 2242 872 189 |
| +49 2242 872 135 |
| http://www.ewaonline.de |
| Parkgürtel 24 |
| D-50823 Köln, Duitsland |
| +49 221 178 2991 |
| +49 221 178 2258 |
| http://www.iawr.org |
| Westvest 7 |
| Postbus 3015 |
| 2601 DA Delft |
| 015 215 17 01 |
| 015 212 29 21 |
| http://www.ihe.nl |
| Rotterdamseweg 185 |
| 2629 HD Delft |
| Postbus 177 |
| 2600 MH Delft |
| 015 285 85 85 |
| 015 285 85 82 |
| http://www.wldelft.nl |