| WILLIAMS, DAN | COLO CATTLEMAN'S ASSN | Opposing | 2018-2019 |
| Treese, Chris | COLO RIVER WATER CONSERVATION DIST | Amending | 2018-2019 |
| Aloria Governmental Affairs | COLO TROUT UNLIMITED | Supporting | 2018-2019 |
| Stealey II, Inc. | COLORADO CORN GROWERS ASSOCIATION | Opposing | 2018-2019 |
| Colorado Legislative Strategies | COLORADO FARM BUREAU | Opposing | 2018-2019 |
| Colorado Municipal League | COLORADO MUNICIPAL LEAGUE | Monitoring | 2018-2019 |
| REES CONSULTING AND PUBLIC AFFAIRS | COLORADO READY MIX CONCRETE ASSOC | Monitoring | 2018-2019 |
| REES CONSULTING AND PUBLIC AFFAIRS | COLORADO STONE SAND AND GRAVEL ASSOC. | Monitoring | 2018-2019 |
| Kemper, Douglas | COLORADO WATER CONGRESS | Monitoring | 2018-2019 |
| Peetz, Elizabeth A | Colorado Association of Realtors | Monitoring | 2018-2019 |
| Capitol Focus, LLC | Colorado Catllemen's Association | Opposing | 2018-2019 |
| Capitol Focus, LLC | Colorado Cattlemen's Association | Opposing | 2018-2019 |
| Ibach, Emily | Colorado Farm Bureau | Opposing | 2018-2019 |
| DeLange, Brandy | Colorado Municipal League | Monitoring | 2018-2019 |
| Votoupal Government Affairs LLC | Colorado River Water Conservation District | Amending | 2018-2019 |
| G Berry Corp | Colorado River Water District | Monitoring | 2018-2019 |
| Mendez, Barkis and Associates | Colorado Sierra Club | Supporting | 2018-2019 |
| Orf & Orf P.C. | Colorado Water Congress | Monitoring | 2018-2019 |
| Orf & Orf PC | Colorado Water Congress | Monitoring | 2018-2019 |
| Bowditch & Cassell Public Affairs | Colorado Water Trust | Monitoring | 2018-2019 |
| Capitol Focus, LLC | Colorado Wool Growers Association | Opposing | 2018-2019 |
| Belgard, Katie A | Conservation Colorado | Supporting | 2018-2019 |
| Conservation Colorado | Conservation Colorado | Supporting | 2018-2019 |
| Siegel Long Public Affairs, LLC | Conservation Colorado | Supporting | 2018-2019 |
| Siegel Public Affairs, LLC | Conservation Colorado | Supporting | 2018-2019 |
| PIPER, CHRISTOPHER N | DENVER WATER | Supporting | 2018-2019 |
| PIPER, CHRISTOPHER N | DENVER WATER | Monitoring | 2018-2019 |
| Stauffer, Heather LaVon | Denver Water | Supporting | 2018-2019 |
| Stauffer, Heather LaVon | Denver Water | Monitoring | 2018-2019 |
| Allen, Jamee Lynn | FREEPORT-MCMORAN COPPER AND GOLD, INC. | Monitoring | 2018-2019 |
| West Slope Strategies LLC | Grand Valley Water Users Association | Monitoring | 2019-2020 |
| Brosemer, Donna | Greeley Water and Sewer | Opposing | 2018-2019 |
| 5280 Strategies | LEGACY WATER ASSOCIATION | Monitoring | 2018-2019 |
| MANDARICH, MARY ALICE | Legacy Water | Amending | 2018-2019 |
| BRANDEBERRY MCKENNA PUBLIC AFFAIRS | Northern Water | Supporting | 2018-2019 |
| Jarvis, Torie | Northwest Colorado Council of Gov'ts/QQ | Supporting | 2018-2019 |
| Richard G Brown Enterprises, Inc. | PIKES PEAK REGIONAL WATER AUTHORITY | Monitoring | 2018-2019 |
| Capitol Focus, LLC | POLITICAL ACTION TRUST AND COMMITTEE | Opposing | 2018-2019 |
| Capitol Focus, LLC | POLITICAL ACTION TRUST AND COMMITTEE | Monitoring | 2018-2019 |
| BALCEROVICH, STEVE | Parker water and sanitation district | Opposing | 2018-2019 |
| Stealey II, Inc. | RIO GRANDE WATER CONSERVATION DIST | Opposing | 2018-2019 |
| Politicalworks, LLC | THE NATURE CONSERVANCY | Supporting | 2018-2019 |
| Kessler, Zane | The Colorado River Water Conservation District | Amending | 2018-2019 |
| J. Andrew Green & Assoc., Inc. | The Water Rights Association of the South Platte | Opposing | 2018-2019 |
| Robertson, AMY L | Tri-State Generation and Transmission | Supporting | 2018-2019 |
| West Slope Strategies LLC | Ute Water Conservancy District | Monitoring | 2019-2020 |
| West Slope Strategies LLC | Ute Water Conservancy District | Amending | 2018-2019 |
| West Slope Strategies LLC | Ute Water Conservancy District | Opposing | 2018-2019 |
| Western Resource Advocates | Western Resource Advocates | Supporting | 2018-2019 |
| Simpson, Robert Ray | Williams, Dan | Opposing | 2018-2019 |