| ABB Ltd |
| AECOM |
| Agflow |
| Agribusiness Training |
| Agricultural Consulting Services Ltd |
| Agresearch Ltd |
| Allied Water Systems Ltd |
| ANZ National Bank Ltd |
| APS Partners |
| Aqua Flow Irrigation Ltd |
| Aqualinc Research Ltd |
| Aquaspec |
| Arkwrights Irrigation |
| ASB |
| Bank of New Zealand |
| B Burns Ltd |
| Beca Infrastructure Ltd |
| Boraman Consultants Ltd |
| Bosch Irrigation Ltd |
| Brown Brothers Engineers Ltd |
| Busch Irrigation Systems Ltd |
| Southern Water Engineering Ltd |
| Cla Val Pacific |
| Control Tech Ltd |
| Cosio Industries/Firestone |
| CPG New Zealand Ltd |
| Crane Distribution New Zealand |
| Crosstech Engineering Ltd |
| Cuddon Ltd |
| Dairy New Zealand |
| Dama Manufacturing Ltd |
| Datacol |
| David Hamilton & Associates Ltd |
| Deeco Services Ltd |
| Delta Utility Services |
| DHI Water and Environment |
| Downer |
| DRH Consulting Ltd |
| EMC Industrial Group Ltd |
| Sustainable Water |
| Ernst & Young |
| Environment Canterbury |
| Everest Farm Consulting Ltd |
| Farm Supplies Central Ltd |
| Fertigation Systems |
| Foundation for Arable Research |
| Freeeman Irrigation (2004) Ltd |
| Fruitfed Supplies |
| Fruition Horticulture (SI) Ltd |
| Geosearch Ltd |
| GHD Ltd |
| Gill Pumps Ltd |
| Goodman Tavendale Reid Ltd |
| Grafton Irrigation (2005) Ltd |
| Grant Thornton NZ Ltd |
| Greater Wellington Regional Council |
| Grundfos Pumps NZ Ltd |
| Harvest Electronics |
| Hawkes Bay Regional Council |
| Hydroflow Distributors Ltd |
| Hynds LTD |
| HydroServices Ltd |
| Iplex Pipelines |
| Irricon Resource Solutions Ltd |
| Irrigation Evaluation Services |
| Irrigation Logistics |
| Irrigation Services Ltd |
| Kirk Irrigation |
| Kitto Consulting |
| KPMG |
| KSB New Zealand |
| Landcare Research NZ |
| Liquid Action Ltd |
| Loncel Technologies Ltd |
| Macfarlane Rural Business |
| Marley New Zealand |
| Maskell Productions Ltd |
| McConnell Dowell Constructors Ltd |
| McMillan Water Wells Ltd |
| Ministry of Agriculture and Forestry |
| MWH New Zealand Ltd |
| Nelson Irrigation Corporation of Australia |
| Netafim New Zealand Ltd |
| Nevoda Equipment Ltd |
| NIWA Ltd |
| Opus International Consultants Ltd |
| Otago Regional Council |
| Page Bloomer Associates Ltd |
| PGG Wrightson (Irrigation & Pumping) |
| PGG Wrightson |
| Pivotal Irrigation Ltd |
| Plains Irrigators |
| Plant and Food Research |
| Plateau Works |
| Powerswap |
| Precision Irrigation |
| Rainer Irrigation Ltd |
| Rangitata Diversion Race Management Ltd |
| Ravensdown Fertiliser |
| Ray Mayne Hose and Fittings |
| RH Goldie Civil & Environmental Consulting Ltd |
| Riley Consultants Ltd |
| RX Plastics Ltd |
| Schneider Electric New Zealand |
| Scott Technical Ltd |
| SICON Ltd |
| Siemens (NZ) Ltd |
| Sinclair Knight and Mertz |
| Steelpipe Ltd |
| Taranki Regional Council |
| Tasman District Council |
| The Fletcher Construction Company Ltd |
| The NZ Institute of Plant and Food |
| Think Water (NZ) Pty Ltd |
| Thiess Services Ltd |
| Total Eden New Zealand Ltd |
| Total Plumbing & Irrigation Hawke's Bay |
| Tonkin & Taylor Ltd |
| Total Irrigation Ltd |
| URS Coporation NZ Ltd |
| Voss Infrastructure Consulting Ltd |
| Waitaki District Council |
| Wallace and Cooper Ltd |
| Water Accessories Ltd |
| Water Dynamics |
| Water Industry Training |
| Water Meter Verification Ltd |
| Water Supply Products |
| WaterForce Ltd |
| WaterMetrics |
| Whitestone Contracting Ltd |
| Yokogawa NZ Ltd |
