| First State Resource Conservation and Development Council IncDover | Form 990-N | No figure |
| Garden Club Federation of PennsylvaniaNewark | Form 990-N | No figure |
| Garden Club Federation of PennsylvaniaNewark | Form 990-N | No figure |
| Delaware Association for Environmental EducationDover | Form 990-N | No figure |
| Black Forest Wildlife PreserveRehoboth Beach | Form 990-N | No figure |
| Alopias FoundationCamden | Form 990-N | No figure |
| College and University Alumni for a Sustainable PlanetWilmington | Form 990-N | No figure |
| Countryside Garden ClubNewark | Form 990-N | No figure |
| Delaware Environmental Coalition IncRehoboth Beach | Form 990-N | No figure |
| Grow One Future IncWilmington | Form 990-N | No figure |
| Turn the Tide Foundation IncDover | Form 990-N | No figure |
| Apis Academy IncNewark | Form 990-N | No figure |
| Twin Fins Alliance IncNewark | Form 990-N | No figure |
| Soil and Spirit IncMiddletown | Form 990-N | No figure |
| Save Our Lakes AllianceRehoboth Beach | Form 990-N | No figure |
| Kent County Conservancy IncDover | Form 990-N | No figure |
| Delaware Onsite Wastewater Association IncDover | Form 990-N | No figure |
| Inland Bays Foundation IncLewes | Form 990-N | No figure |
| Gardeners by the SeaBethany Beach | Form 990-N | No figure |
| Mill Pond GardenLewes | Form 990-N | No figure |
| Duck Creek GardenersSmyrna | Form 990-N | No figure |
| Advance America FoundationNewark | Form 990-N | No figure |
| Milford Garden ClubMilford | Form 990-N | No figure |
| Ecological Research & Development Group IncDover | Form 990-N | No figure |
| Friends of Prime Hook National Wildlife Refuge IncMilton | Form 990-N | No figure |
| Delaware Native Plant SocietyDover | Form 990-N | No figure |
| Friends of White Clay Creek State ParkNewark | Form 990-N | No figure |
| Milton Garden Club IncMilton | Form 990-N | No figure |
| Delaware Invasive Species Council IncDover | Form 990-N | No figure |
| Delaware Federation of Garden ClubsMiddletown | Form 990-N | No figure |
| Birdsong Gardens IncFrankford | Form 990-N | No figure |
| Plantation Lakes Garden ClubMillsboro | Form 990-N | No figure |
| Sea Leg FoundationLincoln | Form 990-N | No figure |
| Salt Air GardenersOcean View | Form 990-N | No figure |
| Central Atlantic Region of State Garden ClubsMillsboro | Form 990-N | No figure |
| Nanticoke Heritage Byway IncSeaford | Form 990-N | No figure |
| Coastal GardenersOcean View | Form 990-N | No figure |
| Long Life Institute Honey FundMilton | Form 990 | $0FY2024 |
| Four Seasons Gardeners of Heritage ShoresBridgeville | Form 990-N | No figure |
| Garden Gate Garden ClubWilmington | Form 990-N | No figure |
| Delaware Green Recycling Community OutreachWilmington | Form 990-N | No figure |
| Project Rescue Earth FoundationNew Castle | Form 990-N | No figure |
| Congo Conservation FoundationWilmington | Form 990-N | No figure |
| The Research Foundation for the Innovation of Eco-EducationWilmington | Form 990-N | No figure |
| Aquarium Divers for Coral SocietyWilmington | Form 990-N | No figure |
| High Asia Habitat FundDover | Form 990-N | No figure |
| 100 Black Men of DelawareWilmington | Form 990-N | No figure |
| Synq Alliance Foundation IncMiddletown | Form 990-N | No figure |
| Omnicolosx IncMiddletown | Form 990-N | No figure |
| Composting for Carbon IncMilford | Form 990-N | No figure |