| Agency | No Projects |
| California Resource Connections | 3 |
| City of Anaheim | 10 |
| City of Brea | 1 |
| City of Buena Park | 2 |
| City of Chino | 2 |
| City of Corona | 1 |
| City of Corona Department of Water and Power | 1 |
| city of costa mesa | 2 |
| City of Cypress | 1 |
| City of Fontana | 1 |
| City of Garden Grove | 3 |
| CIty of Huntington Beach | 1 |
| City of Menifee | 2 |
| City of Ontario | 1 |
| City of Ontario Municipal Utlities Company | 1 |
| City of Redlands | 1 |
| City of Riverside | 2 |
| City of San Bernardino Municipal Water Department | 6 |
| City of Tustin | 3 |
| City of Upland | 1 |
| City of Yucaipa | 1 |
| Costa Mesa Sanitary District | 2 |
| County of Orange | 1 |
| County of Orange/OC Watersheds | 2 |
| CUCAMONGA VALLEY WATER DISTRICT | 3 |
| Eastern Municipal Water District | 20 |
| Elsinore Valley Municipal Water District | 2 |
| Inland Empire Utilities Agency | 37 |
| Inland Empire Waterkeeper | 1 |
| Irvine Ranch Water District | 18 |
| Jurupa Community Services District | 4 |
| Lake Elsinore and San Jacinto Watersheds Authority | 11 |
| Mesa Consolidated Water District | 1 |
| Municipal Water District of Orange County | 1 |
| NLine Energy, Inc. | 1 |
| Orange Coast River Park | 1 |
| Orange County Coastkeeper | 6 |
| Orange County Flood Control District | 1 |
| Orange County Great Park Corporation | 1 |
| Orange County Sanitation District (OCSD) | 3 |
| Orange County Water District | 29 |
| Orange County Watersheds Program | 1 |
| Orange County, Public Works, Flood Control Section, Flood Programs | 30 |
| Riverside County Flood Control & Water Conservation District | 2 |
| Rubidoux Community Services District | 6 |
| S4S Solutions Inc | 1 |
| San Bernardino County Flood Control District | 7 |
| San Bernardino Valley Municipal Water District | 36 |
| San Bernardino Valley Water Conservation District | 2 |
| Santa Ana Watershed Association | 1 |
| Santa Ana Watershed Project Authority | 8 |
| Shea/Baker Ranch, LLC | 1 |
| USDA Forest Service - San Bernardino National Forest | 2 |
| West Valley Water District | 2 |
| Western Municipal Water District | 7 |
| Western Riverside County Agriculture Coalition | 1 |