| American Guild of Organists AgoWilmington | Form 990-N | No figure |
| National Society of the Daughters of the American RevolutionSeaford | Form 990-N | No figure |
| National Society of the Sons of the American RevolutionWilmington | Form 990-N | No figure |
| National Society of the Daughters of the American RevolutionFrederica | Form 990-N | No figure |
| Archaeological Society of DelawareDover | Form 990-N | No figure |
| Road Runners Club of AmericaWilmington | Form 990-N | No figure |
| Delaware Ornithological SocietyGreenville | Form 990-N | No figure |
| Toastmasters InternationalNewark | Form 990-N | No figure |
| Dover Century ClubDover | Form 990-N | No figure |
| Sweet Adelines InternationalWilmington | Form 990-N | No figure |
| Ladybug Chapter of the National Quilting AssociationNewark | Form 990-N | No figure |
| Solid Waste Association of North America IncDover | Form 990-N | No figure |
| Womens National Book Association IncWilmington | Form 990-N | No figure |
| Mid-Atlantic Chapter of the American Fisheries SocietyDover | Form 990-N | No figure |
| Rehoboth Bay FoundationRehoboth Beach | Form 990-N | No figure |
| American Volkssport Association IncCamden Wyoming | Form 990-N | No figure |
| PTA Delaware CongressWilmington | Form 990-N | No figure |
| National Huguenot SocietyBear | Form 990-N | No figure |
| PTA Delaware CongressMiddletown | Form 990-N | No figure |
| North American Folk Music and Dance Alliance IncNewark | Form 990-N | No figure |
| Morgan State University Alumni Association IncorporatedWilmington | Form 990-N | No figure |
| Toastmasters InternationalSmyrna | Form 990-N | No figure |
| Toastmasters InternationalWilmington | Form 990-N | No figure |
| United States Power SquadronsSeaford | Form 990-N | No figure |
| Smocking Arts Guild of America IncNewark | Form 990-N | No figure |
| National Society of New England WomenBear | Form 990-N | No figure |
| Reception Study SocietyNewark | Form 990-N | No figure |
| Global Pulso FundDover | Form 990-N | No figure |
| National Society of the Daughters of the American RevolutionFrederica | Form 990-N | No figure |
| National High School Mock Trial Championship IncWilmington | Form 990-N | No figure |
| National Society of the Children of the American RevolutionMiddletown | Form 990-N | No figure |
| American International School of Vienna FoundationWilmington | Form 990-N | No figure |
| Sussex County Volunteer Delaware 50PLUS Advisory Council IncGeorgetown | Form 990-N | No figure |
| Mark Bader Jr Legacy FundWilmington | Form 990-N | No figure |
| Future Promises FoundationMiddletown | Form 990-N | No figure |
| Abbas Safe HavenNew Castle | Form 990-N | No figure |
| Friends of the Blue Hen SpecialSeaford | Form 990-N | No figure |
| Hands for LifeNewark | Form 990-N | No figure |
| Reseau Docteur IncLewes | Form 990-N | No figure |
| Psi Chi the International Honor Society in PsychologyNew Castle | Form 990-N | No figure |
| I Can Do 26 Point 2 KidsWilmington | Form 990-N | No figure |
| Stanford Community Development CorporationDover | Form 990-N | No figure |
| Orient of Delaware Benevolent FoundationMiddletown | Form 990-N | No figure |
| Northern Delaware Shriners FoundationNew Castle | Form 990-N | No figure |
| Maternal RightsDover | Form 990-N | No figure |
| Heart to HeartsWilmington | Form 990-N | No figure |
| Most Worshipful Prince Hall Grand Lodge of Delaware FoundationDover | Form 990-N | No figure |
| Society of Critical Care MedicineNewark | Form 990-N | No figure |
| Youniquely Creative School of Arts IncNewark | Form 990-N | No figure |
| PTA Delaware CongressWilmington | Form 990-N | No figure |