| Association for Instrumentation Control Automation (GAMBICA) | www.gambica.org.uk |
| Association of Drainage Authorities (ADA) | www.ada.org.uk |
| Association of Plumbing and Heating Contractors (APHC) | www.aphc.co.uk |
| British Hydrological Society (BHS) | www.hydrology.org.uk |
| British Water | www.britishwater.co.uk |
| British Waterways | www.britishwaterways.co.uk |
| CABWI Awarding Body | www.cabwi.co.uk |
| Chartered Institution of Water and Environmental Management (CIWEM) | www.ciwem.org.uk |
| European Point of Use Drinking Water Association | www.epdwa.org |
| Institution of Water Officers (IWO) | www.iwo.org.uk |
| Maritime and Coastguard Agency | www.mcga.gov.uk |
| Pipeline Industries Guild | www.pipeguild.co.uk |
| Royal Yachting Association | www.rya.org.uk |
| Society of British Water Industries (SBWI) | www.sbwi.co.uk |
| Union Fenosa | www.uef.es |
| United Kingdom Society for Trenchless Technology (UKSTT) | www.ukstt.org.uk |
| Water in the School | www.waterintheschool.co.uk |
| Water Regulations Advisory Scheme (WRAS) | www.wras.co.uk |
| Water Research Centre (WRc) | www.wrcplc.co.uk |
| Water Supply and Sanitation Collaborative Council | www.wsscc.org |
| Water Technology | www.water-technology.net |
| Waterways Trust | www.thewaterwaystrust.com |
