| Jenkins Arboretum & GardensEIN 23-2726419 | Environment | PA | $1,101,078Small | 84.21 |
| LAND studioEIN 34-1212421 | Environment | OH | $3,900,114Mid-sized | 86.27 |
| Lauritzen GardensEIN 47-0659701 | Environment | NE | $6,507,988Mid-sized | 84.42 |
| Lewis Ginter Botanical GardenEIN 54-1273467 | Environment | VA | $8,265,053Mid-sized | 95.14 |
| Madison Square Park ConservancyEIN 14-1859935 | Environment | NY | $4,811,212Mid-sized | 85.67 |
| Massachusetts Horticultural SocietyEIN 04-2104714 | Environment | MA | $1,690,583Small | 83.57 |
| McKee Botanical GardenEIN 65-1189895 | Environment | FL | $1,443,755Small | 81.60 |
| Mill River Park CollaborativeEIN 06-1507648 | Environment | CT | $1,758,191Small | 91.45 |
| Missouri Botanical GardenEIN 43-0666759 | Environment | MO | $45,210,838Large | 87.76 |
| Naples Botanical GardenEIN 65-0511429 | Environment | FL | $8,405,351Mid-sized | 87.78 |
| National Park FoundationEIN 52-1086761 | Environment | DC | $70,306,163Large | 91.50 |
| National Parks Conservation AssociationEIN 53-0225165 | Environment | DC | $31,688,823Large | 82.54 |
| National Tropical Botanical GardenEIN 52-6057064 | Environment | HI | $11,377,135Mid-sized | 92.74 |
| New England Wild Flower SocietyEIN 04-2104768 | Environment | MA | $2,639,084Small | 89.30 |
| New York Restoration ProjectEIN 13-3959056 | Environment | NY | $7,143,770Mid-sized | 80.87 |
| New York-New Jersey Trail ConferenceEIN 22-6042838 | Environment | NJ | $3,106,977Small | 99.71 |
| Norfolk Botanical GardenEIN 54-0788933 | Environment | VA | $5,367,710Mid-sized | 85.06 |
| North Carolina Botanical Garden Foundation, Inc.EIN 56-6076622 | Environment | NC | $1,521,702Small | 86.84 |
| North Lakeland Discovery CenterEIN 39-1852858 | Environment | WI | $872,690Small | 82.53 |
| Olbrich Botanical SocietyEIN 39-1357247 | Environment | WI | $2,874,467Small | 88.26 |
| Outdoor Discovery Center Macatawa GreenwayEIN 38-2461102 | Environment | MI | $2,992,451Small | 88.77 |
| Park PrideEIN 58-1883895 | Environment | GA | $2,703,793Small | 93.91 |
| Phipps Conservatory and Botanical GardensEIN 25-1492587 | Environment | PA | $12,253,992Mid-sized | 92.53 |
| Piedmont Park ConservancyEIN 58-1551369 | Environment | GA | $3,079,715Small | 83.89 |
| Pittsburgh Botanic GardenEIN 25-1648405 | Environment | PA | $1,549,227Small | 81.44 |
| Pittsburgh Parks ConservancyEIN 23-2882145 | Environment | PA | $13,182,731Mid-sized | 90.94 |
| Planting Fields FoundationEIN 11-1770097 | Environment | NY | $2,404,069Small | 87.56 |
| Project for Public SpacesEIN 13-2808114 | Environment | NY | $4,480,337Mid-sized | 83.89 |
| Prospect Park AllianceEIN 11-2843763 | Environment | NY | $9,890,402Mid-sized | 83.78 |
| Randall's Island Park AllianceEIN 13-3787630 | Environment | NY | $7,982,600Mid-sized | 89.46 |
| Regional Parks FoundationEIN 23-7011877 | Environment | CA | $1,649,524Small | 90.50 |
| Riveredge Nature CenterEIN 39-6108549 | Environment | WI | $1,881,013Small | 91.18 |
| Riverfront RecaptureEIN 06-1045653 | Environment | CT | $3,088,203Small | 92.56 |
| RiverlifeEIN 31-1674160 | Environment | PA | $2,120,404Small | 85.03 |
| Riverside Park ConservancyEIN 13-3443825 | Environment | NY | $4,726,703Mid-sized | 88.60 |
| San Antonio Botanical Garden SocietyEIN 74-2178792 | Environment | TX | $2,825,220Small | 88.42 |
| San Diego Botanic GardenEIN 95-6120581 | Environment | CA | $2,978,807Small | 84.42 |
| San Diego River Park FoundationEIN 01-0565671 | Environment | CA | $939,333Small | 85.40 |
| San Francisco Botanical Garden SocietyEIN 94-6050168 | Environment | CA | $4,261,791Mid-sized | 92.52 |
| San Francisco Parks AllianceEIN 23-7131784 | Environment | CA | $15,142,255Large | 92.48 |
| Santa Barbara Botanic GardenEIN 95-1644628 | Environment | CA | $3,907,707Mid-sized | 90.80 |
| Seattle Parks FoundationEIN 91-1998597 | Environment | WA | $2,525,864Small | 97.13 |
| Shelburne FarmsEIN 03-0229347 | Environment | VT | $5,255,194Mid-sized | 91.56 |
| The Atlanta Botanical GardenEIN 58-1313284 | Environment | GA | $22,065,406Large | 93.53 |
| The Battery ConservancyEIN 13-3769101 | Environment | NY | $3,380,474Small | 92.17 |
| The Dallas Arboretum and Botanical SocietyEIN 23-7375815 | Environment | TX | $24,493,663Large | 92.50 |
| The Holden ArboretumEIN 34-0750346 | Environment | OH | $9,101,643Mid-sized | 91.14 |
| The Horticultural Society of New YorkEIN 13-0854930 | Environment | NY | $2,923,366Small | 88.81 |
| The Morton ArboretumEIN 36-1505770 | Environment | IL | $34,397,968Large | 91.76 |
| The Nature Center at Shaker LakesEIN 34-6576569 | Environment | OH | $1,349,517Small | 87.76 |
| The New York Botanical GardenEIN 13-1693134 | Environment | NY | $85,186,570Large | 90.56 |
| The Park PeopleEIN 84-6045624 | Environment | CO | $1,289,591Small | 86.10 |
| The Polly Hill ArboretumEIN 13-3873765 | Environment | MA | $1,509,918Small | 89.60 |
| This Is The Place FoundationEIN 84-1426573 | Environment | UT | $6,104,884Mid-sized | 88.14 |
| Thomas Irvine Dodge Nature CenterEIN 41-6081794 | Environment | MN | $2,497,503Small | 89.57 |
| Venture OutdoorsEIN 20-3275291 | Environment | PA | $1,387,705Small | 70.35 |
| Vermont Institute of Natural ScienceEIN 03-0231665 | Environment | VT | $1,479,008Small | 74.45 |
| Walkway Over the HudsonEIN 14-1753502 | Environment | NY | $1,129,219Small | 76.97 |
| Wave HillEIN 13-6178903 | Environment | NY | $7,249,821Mid-sized | 87.08 |
| Worcester County Horticultural SocietyEIN 04-1988945 | Environment | MA | $3,644,678Mid-sized | 81.83 |