| American Public Gardens Association | Wilmington | B | $3.77M |
| Aquarium Divers for Coral Society | Wilmington | C | $2,451 |
| Arasapha Garden Club Inc | New Castle | C | $14K |
| Aviation Climate Taskforce Inc | Wilmington | C | $496 |
| Breathe Mongolia - Clean Air Coalition Inc | Wilmington | D | $66K |
| Bright's Creek Conservancy Inc | Wilmington | F | $379K |
| Building Decarbonization Coalition | Lewes | B | $15.00M |
| Center for the Inland Bays Inc | Rehoboth BCH | C | $3.54M |
| Christina Conservancy Inc | Wilmington | C | $35K |
| Climate ARC Inc | Dover | C | $44.43M |
| Climate Catalyst Inc | Wilmington | F | $785K |
| Community Resource Center Inc | Rehoboth BCH | B | $932K |
| Conservation Agreement Fund a NJ Nonprofit Corporation | Lewes | D | $62K |
| Delaware Association of Conservation Dis | Dover | D | $6.72M |
| Delaware Botanic Gardens Inc | Dagsboro | D | $1.03M |
| Delaware Center for Horticulture Inc | Wilmington | C | $1.43M |
| Delaware Greenways Inc | Wilmington | B | $174K |
| Delaware Interfaith Power & Light | Dover | B | $67K |
| Delaware Nature Society Inc | Hockessin | C | $4.04M |
| Delaware On-Site Wastewater Recycling Association | Dover | A | $58K |
| Delaware River & Bay | Lewes | F | $111K |
| Delaware Seashore Preservation | Ocean View | D | $15K |
| Earth Hacks Foundation | Claymont | C | $119K |
| First State Resource Conservation and Development Council Inc | Dover | C | $12K |
| Foundation for Renewable Energy and the | Wilmington | C | $92K |
| Friends of Brandywine Springs | Wilmington | C | $2,783 |
| Friends of Forwood Preserve Inc | Wilmington | C | $4,539 |
| Friends of Wilmington Parks | Montchanin | D | $127K |
| Garden Club of Wilmington | Wilmington | D | $73K |
| Global Portal Institute | Dover | C | $14K |
| Integrated Vegetation Management Partners Inc | Newark | D | $213K |
| International Association for Vegetation | Newark | C | $334K |
| Keep Delaware Beautiful Inc | Newark | D | $205K |
| Kids Saving the Rainforest Inc | Frankford | C | $210K |
| Lewes in Bloom Inc | Lewes | C | $262K |
| Long Life Institute Honey Fund | Milton | D | $395K |
| Luesther T Mertz Legacy Trust for the | Wilmington | F | $2,068 |
| Nanticoke River Watershed Conservan | Seaford | D | $52K |
| Nanticoke Watershed Alliance Inc | Seaford | B | $943K |
| National Conservation District Employees Association Inc | Dover | C | $80K |
| Nature Is Nonpartisan Inc | Wilmington | D | $400K |
| Newark Bike Project Inc | Newark | F | $152K |
| Partnership for the Delaware | Wilmington | A | $4.56M |
| Plastic Free Delaware | Wilmington | C | $157K |
| Renew New England Alliance | Dover | F | $2,230 |
| Roatan Marine Park International Inc | Dover | F | $284K |
| Rodney Square Conservancy Inc | Wilmington | F | $500 |
| Save Groundwater Foundation | Lewes | C | $63K |
| Sea Leg Foundation | Lincoln | C | $0 |
| Sussex County Land Foundation Inc | Rehoboth BCH | D | $974K |
| Sussex Health and Environmental Net | Selbyville | C | $314K |
| Sustainable Energy Utility Inc | Dover | B | $48.75M |
| Synchronicity Earth USA Inc | Dover | C | $1.38M |
| The Greater Lewes Foundation | Lewes | C | $4.29M |
| The Sunrise Project Inc | Wilmington | C | $61.11M |
| Trust Ua With H C Green Fbo Chesapeake | Wilmington | D | $373K |
| WRLD Foundation | Wilmington | C | $10.99M |
Charity Clarity