1Day 1Thing events supporting our environment
| Atlanta | DeKalb Memorial Park |
| Austin | Zilker Botanical Garden |
| Baltimore | Blue Water Baltimore |
| Boston | The Charlies River Watershed Association |
| Buffalo | Buffalo Niagra Waterkeeper |
| Chattanooga | City of Chattanooga Dept of Park + Outdoors |
| Chicago | The Nature Conservancy |
| Cleveland | Cleveland Metroparks |
| Dallas | EarthX |
| Denver | We Don’t Waste |
| Detroit | City of Southfield |
| Gainesville | Arc of Alachua County |
| Greensboro | Piedmont Environmental Alliance |
| Greenville | Greenville County |
| Hartford/Springfield | Connecticut River Conservation |
| Houston | Rebuilding Together Houston |
| Kansas City | Audacy Kansas City |
| Los Angeles | The Standard Design Group Nurseries (TSDGN) |
| Las Vegas | Audacy Nevada LLC |
| Madison | Free Bikes 4 Kidz |
| Memphis | Memphis City Beautiful |
| Miami | Ft Lauderdale Visitors Bureau |
| Milwaukee | The Urban Ecology Center |
| New Orleans | N.O City Park |
| New York | Hudson Square Business Improvement District |
| Norfolk | Ask HR Green / HRPDC |
| Orlando | Conservation Florida |
| Philadelphia | Fairmount Park Conservancy |
| Phoenix | City of Phoenix Parks & Rec |
| Pittsburgh | Audacy |
| Portland | Free Geek |
| Providence | RI Dept of Environmental Management |
| Richmond | Keep Henrico Beautiful – Henrico County |
| Riverside | Riverside Market: Sale Ranch in Temecula |
| Rochester | Greentopia |
| Sacramento | Ronald McDonald House Charities Northern California (RMHCNC) |
| San Diego/Riverside | Audacy, Inc |
| San Francisco | San Francisco Zoo |
| Seattle | City of Seattle Parks & Rec. Dept. |
| Springfield | Connecticut River Conservancy |
| St. Louis | The Tower Grove Park Foundation |
| Washington D.C. | The Reed Center |
| Wichita | Great Plains Nature Center |
| Wilkes Barre | Lackawanna Heritage Valley Authority |
