| Company Name | Booth(s) | Description |
|
| Acclima, Inc. | 424 |
| AcornVac | 422 |
| ACT Inc., Metlund Systems | 609 |
| Alex-Tronix | 415 |
| Alliance for Water Efficiency | 217 |
| American Innovative Products, Inc. | 121 |
| American Society of Irrigation Consultants | 501 |
| Audubon International | 409 |
| Baseline, Inc. | 712 |
| Black & Veatch | 317 |
| Bushman Rainwater Harvesting | 613, 615 |
| CA-NV AWWA | 215 | California-Nevada Section, American Water Works Association |
| California Urban Water Conservation Council | 110 |
| Caroma | 207 |
| Chemilizer Products, Inc. | 326 |
| Community Environment Alliance | 711 |
| Corrpro | 316 |
| Dynamax, Inc. | 100 |
| Ewing Irrigation | 401, 500 |
| Falcon Waterfree Technologies | 227 |
| FieldTurf | 315 |
| Fluidmaster | 221 |
| Geberit/The Chicago Faucet Company | 319, 321 |
| Global Water Resources | 426 |
| GrassSmart | 314 |
| Grundfos Pumps | 709 |
| Hunter Industries | 503 |
| IAPMO | 214, 216 | International Association of Plumbing and Mechanical Officials |
| ICC, Inc. | 107 |
| International Center for Water Technology | 414 |
| Irrigation and Water Technologies, LLC | 403 |
| Irrigation Association | 405 |
| Irrometer Company | 327 |
| Kohler Co. | 220 |
| Lombardo Associates | 112 |
| MJSI, Inc. | 608 |
| Motorola/SeaCon International | 600 |
| MWH Global | 423,522 |
| Niagra Conservation Corp. | 307 |
| Rain Bird Corporation | 313 |
| Rain Harvesting Pty Ltd. | 219 |
| Rain Master | 601 |
| Rainwater Solutions | 523 |
| Rehbein Environmental Solutions | 708 |
| Resource Action Programs | 416 |
| Signce Design GmbH | 104 |
| Sloan Valve | 101 |
| Southern Nevada Water Authority | 213 |
| Southwest Environmental, Inc. | 508 |
| Springs Preserve | 115 |
| Superior Manufacturing | 114, 116 |
| Toro | 627, 726 |
| Toto | 301 |
| US EPA WaterSense | 113 |
| Vortens | 502, 504 |
| VRTX Technologies | 622 |
| Wastewater Solutions, Inc. | 106 |
| Water Efficiency Magazine | 413, 512 |
| Water Management | 223 |
| Weathermatic | 407 |
| Zurn Industries | 513,612 |
