| Odyssey Charter School Incorporated | 501(c)(3) | 2012 | $45.9 million | $82.6 million | 2025-06 |
| Tower Hill School | 501(c)(3) | 1957 | $38.2 million | $134.5 million | 2025-06 |
| Goldey Beacom College Inc | 501(c)(3) | 1971 | $34.2 million | $251.8 million | 2025-06 |
| Lee Inc | 501(c)(4) | 2018 | $24.9 million | $3.6 million | 2024-12 |
| University of the People | 501(c)(3) | 2010 | $22.3 million | $14.8 million | 2025-08 |
| Tatnall School Inc | 501(c)(3) | 1957 | $18.9 million | $44.6 million | 2025-06 |
| Kuumba Academy Charter School Inc | 501(c)(3) | 2014 | $15.4 million | $12.4 million | 2025-06 |
| East Side Charter School of Wilmington Inc | 501(c)(3) | 1997 | $13.5 million | $12.8 million | 2025-06 |
| American Cooperative School of Tunis Acst Association | 501(c)(3) | 2004 | $12.6 million | $32.9 million | 2025-06 |
| First State Montessori Academy Inc | 501(c)(3) | 2014 | $12.1 million | $26.9 million | 2025-06 |
| Mid-Atlantic Region Commission On Higher Education | 501(c)(3) | 2014 | $12 million | $25.1 million | 2025-06 |
| Freire Charter School Wilmington Inc | 501(c)(3) | 2014 | $9.9 million | $20.7 million | 2025-06 |
| Philip F Dupont Trust Ud for University of Virginia 1028-2 Nect | 501(c)(3) | 1972 | $9.7 million | $92.1 million | 2024-12 |
| Delaware Military Academy Inc | 501(c)(3) | 2002 | $9.1 million | $28.9 million | 2025-06 |
| Intercollegiate Studies Institute Inc | 501(c)(3) | 1954 | $8.7 million | $37.1 million | 2025-06 |
| American Trust 33-11272-66 33-11512-98 Fbo | 501(c)(3) | 1949 | $6.3 million | $5.6 million | 2024-12 |
| Gateway Charter School | 501(c)(3) | 2008 | $5.9 million | $4.4 million | 2025-06 |
| Reading Assist Institute | 501(c)(3) | 1989 | $5.3 million | $4.9 million | 2025-06 |
| H Fletcher Brown Trust U/w Fbo University of Delaware 3377 | 501(c)(3) | 1972 | $4.5 million | $54.2 million | 2025-09 |
| Tuso | 501(c)(3) | 2020 | $4.4 million | $16.5 million | 2024-12 |
| Wilmington Montessori School | 501(c)(3) | 1965 | $4.3 million | $10.8 million | 2025-08 |
| Tucc Inc | 501(c)(3) | 2019 | $4.2 million | $21.1 million | 2025-05 |
| Centreville Layton School Inc | 501(c)(3) | 1979 | $4.2 million | $12.2 million | 2025-07 |
| Joe and Jill Biden Presidential Library Foundation | 501(c)(3) | 2025 | $4 million | $4 million | 2024-12 |
| Great Oaks Charter School - Wilmington Inc | 501(c)(3) | 2016 | $4 million | $5.3 million | 2025-06 |
| Urbanpromise Ministries Wilmington | 501(c)(3) | 2007 | $3.1 million | $3.6 million | 2025-06 |
| Challenge Program | 501(c)(3) | 1999 | $2.4 million | $6.7 million | 2025-06 |
| National Tsing Hua University North America Foundation Inc | 501(c)(3) | 2019 | $2.2 million | $465,611 | 2025-12 |
| Babcock Urological Endow FD | 501(c)(3) | 2017 | $2.2 million | $21.8 million | 2024-12 |
| Hbcu Week Foundation Inc | 501(c)(3) | 2020 | $2.1 million | $468,784 | 2024-12 |
| Nanjing University Education Foundation Us Inc | 501(c)(3) | 2009 | $2 million | $17.6 million | 2025-12 |
| Yearrrn Academy 365 | 501(c)(3) | 2022 | $1.8 million | $616,985 | 2025-06 |
| Zip Code Wilmington Inc | 501(c)(3) | 2015 | $1.7 million | $934,522 | 2024-12 |
| Global Investment Foundation Fortomorrow Inc | 501(c)(3) | 2007 | $1.4 million | $333,257 | 2025-12 |
| Oxuf Inc | 501(c)(3) | 2023 | $1.3 million | $1.4 million | 2024-12 |
| New Castle County Childrens House Montessori School Inc | 501(c)(3) | 2000 | $1.3 million | $3.4 million | 2025-05 |
| Albert Einstein Academy Inc | 501(c)(3) | 1971 | $1.2 million | $1.1 million | 2025-06 |
| Infotrends USA Inc | 501(c)(3) | 2003 | $1.1 million | $29,806 | 2025-12 |
| Leading Youth Through Empowerment Inc | 501(c)(3) | 2014 | $1 million | $749,185 | 2024-12 |
| SSP International Inc | 501(c)(3) | 1999 | $962,702 | $203.3 million | 2024-12 |
| Delaware Futures Inc | 501(c)(3) | 1997 | $961,990 | $234,562 | 2025-06 |
| First State Educate Inc | 501(c)(3) | 2019 | $695,701 | $1.1 million | 2024-12 |
| Vocational Technical Educational Foundation of Delaware | 501(c)(3) | 1992 | $614,117 | $1.4 million | 2025-12 |
| Montessori Works Inc | 501(c)(3) | 1971 | $584,797 | $64,372 | 2025-06 |
| Leon N Weiner Education Foundation | 501(c)(3) | 2006 | $544,387 | $2.5 million | 2024-12 |
| Cab Calloway School Fund | 501(c)(3) | 2004 | $531,324 | $362,640 | 2025-09 |
| The Tell Institute | 501(c)(3) | 2025 | $530,000 | $529,900 | 2024-12 |
| Literacy Delaware Inc | 501(c)(3) | 2001 | $515,188 | $247,992 | 2025-06 |
| Delaware Charter Schools Network Inc | 501(c)(3) | 2002 | $472,084 | $669,296 | 2025-06 |
| Access Group Loan Reserve Trust I 51529-000 | 501(c)(3) | 2002 | $453,203 | $2.5 million | 2025-03 |
| Business History Conference | 501(c)(3) | 1988 | $451,653 | $7.3 million | 2024-12 |
| My First Bitcoin Inc | 501(c)(3) | 2022 | $439,959 | $0 | 2024-12 |
| Schools That Lead Inc | 501(c)(3) | 2012 | $416,128 | $288,199 | 2025-06 |
| Island Futures Fund | 501(c)(3) | 2025 | $397,554 | $76,883 | 2025-12 |
| Laurel District Library Comm Ua | 501(c)(3) | 1963 | $353,635 | $2.5 million | 2025-12 |
| Progress With Practice Inc | 501(c)(3) | 2018 | $353,601 | $66,015 | 2024-12 |
| Garrett House | 501(c)(3) | 2009 | $316,170 | $1.9 million | 2025-12 |
| Padua Academy Foundation | 501(c)(3) | 1995 | $300,469 | $1.7 million | 2025-12 |
| Wonderschool Foundation | 501(c)(3) | 2024 | $300,000 | $7,775 | 2025-12 |
| Culture Restoration Project Inc | 501(c)(3) | 2016 | $208,117 | $239,386 | 2025-06 |
| Delaware Law Related Education Center Inc | 501(c)(3) | 1996 | $206,334 | $718,311 | 2025-06 |
| Urban Bike Project of Wilmingtoninc | 501(c)(3) | 2008 | $177,625 | $548,236 | 2024-12 |
| Delaware Coalition Against Gun Violence Educational Fund | 501(c)(3) | 2014 | $166,353 | $208,545 | 2024-12 |
| Black Doctoral Network Inc | 501(c)(3) | 2019 | $164,753 | $7,028 | 2024-06 |
| Friends of Egyptian Leadership Academy Inc | 501(c)(3) | 2025 | $163,413 | $469,126 | 2025-06 |
| The Delaware State Chamber Foundation | 501(c)(3) | 1999 | $155,522 | $275,861 | 2024-12 |
| Fresh Start Scholarship Foundation Inc | 501(c)(3) | 1997 | $152,774 | $712,822 | 2025-06 |
| International Symposia On Chemical Reaction Engineering Inc | 501(c)(3) | 1999 | $148,646 | $248,476 | 2025-06 |
| Imperial Dynasty Arts Program Inc | 501(c)(3) | 2014 | $146,694 | $145,420 | 2025-12 |
| Charter School of Wilmington Inc | 501(c)(3) | 1996 | $146,387 | $21,282 | 2025-06 |
| First State Educate Action Fund Inc | 501(c)(4) | 2020 | $123,000 | $9,247 | 2024-12 |
| Rewired Incorporated | 501(c)(3) | 2023 | $118,000 | $65,347 | 2024-12 |
| Achievers Program Inc | 501(c)(3) | 1998 | $98,985 | $100,603 | 2025-10 |
| Societa Davinci Inc | 501(c)(3) | 2001 | $89,756 | $193,648 | 2025-12 |
| Wilmington Library Foundation II Inc | 501(c)(3) | 1999 | $88,967 | $2.5 million | 2025-06 |
| Thomas A Edison Charter School of Wilmington Inc | 501(c)(3) | 1999 | $88,100 | $3.9 million | 2025-06 |
| Delaware School Counselors Association Inc | 501(c)(3) | 2009 | $77,012 | $83,166 | 2025-06 |
| Delaware Chapter of the American College of Surgeons Inc | 501(c)(3) | 2008 | $74,696 | $239,413 | 2025-12 |
| Talley Performing Arts Booster | 501(c)(3) | 2024 | $73,933 | $18,546 | 2025-06 |
| Wow Science Corp | 501(c)(3) | 2010 | $71,171 | $257,220 | 2024-12 |
| Yes U Can Corporation | 501(c)(3) | 2010 | $70,537 | $38,767 | 2025-12 |
| Delaware Headstart Association Inc | 501(c)(3) | 2002 | $63,181 | $148,541 | 2025-09 |
| Rainbow Chorale of Delaware Inc | 501(c)(3) | 2000 | $60,083 | $92,074 | 2025-06 |
| Friends of Vinuniversity Inc | 501(c)(3) | 2024 | $58,638 | $8,434 | 2024-12 |
| Aauw Wilmington Delaware Scholarship & Memorial | 501(c)(3) | 1962 | $56,721 | $1.1 million | 2025-06 |
| Delaware Mathematics Coalition Inc | 501(c)(3) | 2019 | $55,674 | $254,471 | 2025-12 |
| Fundacion Centro Latino Inc | 501(c)(3) | 2022 | $53,825 | $1.6 million | 2024-12 |
| Cab Calloway Band Booster Association | 501(c)(3) | 2017 | $45,693 | $55,413 | 2025-12 |
| Pearls of Hope Foundation of Alpha Kappa Alpha Sorority Inc | 501(c)(3) | 2004 | $38,277 | $122,834 | 2025-12 |
| Delaware Military Academy Sports Booster Club | 501(c)(3) | 2008 | $33,278 | $19,334 | 2025-06 |
| Vatsim Inc | 501(c)(3) | 2022 | $30,885 | $38,557 | 2024-12 |
| The Gamma Theta Lambda Education Foundation | 501(c)(3) | 2001 | $24,469 | $354,654 | 2025-06 |
| Analysts and Associates Collective Incorporated | 501(c)(3) | 2024 | $11,689 | $36,206 | 2025-12 |
| Fortis & Friends Foundation | 501(c)(3) | 2023 | $10,179 | $10,947 | 2025-12 |
| Intercultural Open University Foundation | 501(c)(3) | 2011 | $6,092 | $112,739 | 2024-12 |
| Savant Development & Consulting Inc | 501(c)(3) | 2025 | $5,756 | $1 | 2025-12 |
| Bianchi Memorial Fund | 501(c)(3) | 2019 | $1,703 | $59,257 | 2025-12 |
| Friends of the Woodlawn Library Inc | 501(c)(3) | 2003 | $163 | $21,107 | 2024-12 |
| Centreville Learning Center | 501(c)(3) | 2010 | $1 | $7,920 | 2025-07 |
| 1infore Inc | 501(c)(3) | 2025 | | | |
| 302 Phalanx Foundation Inc | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| 404 Museum Foundation | 501(c)(3) | 2026 | | | |
| A Heros Legacy - the Tony Rivera Foundation Inc | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Advanced Tomorrow Institute Inc | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Aerospace Venture Foundation | 501(c)(3) | 2026 | | | |
| American Association of University Women | 501(c)(4) | 2010 | $0 | $0 | 2026-06 |
| American Council for Global Scholar S Foundation | 501(c)(3) | 2026 | | | |
| American Play Way Inc | 501(c)(3) | 2025 | | | |
| American War Memorials Overseas Inc | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Amigos de Fafi Charitable Trust | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Ania Lynn Moss Foundation | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Anieres Foundation | 501(c)(3) | 2024 | | $87,736 | 2025-12 |
| Anne R Monroe Foundation | 501(c)(3) | 1995 | | $1.5 million | 2025-12 |
| Anton E B Schefer Foundation | 501(c)(3) | 2011 | | $8 million | 2025-12 |
| Artist Corporations Foundation | 501(c)(3) | 2025 | $0 | $1 | 2025-12 |
| Ascend Legacy Academy | 501(c)(3) | 2024 | | | |
| Axle Publications Hawaii | 501(c)(3) | 2026 | | | |
| Ayurveda Yoga Global Foundation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Ballobo Foundation TBF Inc | 501(c)(3) | 2025 | | | |
| Berkana Center for Media and Education Inc | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Beta Eta Boule Foundation Inc | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Beyond Borders Scholarship | 501(c)(3) | 2026 | | | |
| Bishkek International School Development Foundation Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Boca Raton Exchange Foundation Inc | 501(c)(3) | 2017 | $0 | $0 | 2023-12 |
| Bramble Learning Network | 501(c)(3) | 2026 | | | |
| Brandywine High School Parent Teacher Organization Inc | 501(c)(3) | 2019 | $0 | $0 | 2025-06 |
| Brandywine Springs Elementary School Pto | 501(c)(3) | 2001 | $0 | $0 | 2025-06 |
| Briggs Family Foundation | 501(c)(3) | 2015 | | $1.1 million | 2024-12 |
| CPT Brian Faunce Memorial Fund | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| CSW Alumni Association | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Cab Calloway Parent Teacher Studentorganization | 501(c)(3) | 2017 | $0 | $0 | 2026-07 |
| Calm Nonprofit Corp | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Cameron Logan Scholarship Fund | 501(c)(3) | 2014 | $0 | $0 | 2024-12 |
| Ceb Support Corporation | 501(c)(3) | 2025 | | $7 million | 2025-06 |
| Charter School of Wilmington Ptso | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Childhood RND Educational Foundation Inc | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| Childimagine Incorporated | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Christ Church Episcopal Preschoolinc | 501(c)(3) | 2008 | | | |
| Citizens for Delaware Schools Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Clarke Education Foundation Inc | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Clifford Stevens Scholarship Foundation | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Concord High School Alumni Hall of Achievement Fund | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Concord Music Boosters | 501(c)(3) | 2019 | $0 | $0 | 2025-06 |
| Congo Legacy Center Inc | 501(c)(3) | 2024 | | | 2022-12 |
| Conrad Baseball Association Inc | 501(c)(3) | 2026 | | | |
| Consortium On Graduate Communication | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Crkvenjakov Charitable Foundation | 501(c)(3) | 2020 | | $1.4 million | 2025-12 |
| Cubing for All Inc | 501(c)(3) | 2025 | | | |
| Dawn University Foundation | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Define and Muhtar Kent Educational Foundation | 501(c)(3) | 2012 | | $20.1 million | 2025-12 |
| Delaware Architecture Foundation | 501(c)(3) | 1998 | | $87,884 | 2023-12 |
| Delaware Art Education Association | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Delaware Association of Second Amendment Lawyers II | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Delaware Military Academy Music Association | 501(c)(3) | 2015 | $0 | $0 | 2026-06 |
| Delaware Scholarship Foundation Inc | 501(c)(3) | 2025 | | | |
| Diamond State Pearls Incorporated | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Digital Bridge Delaware | 501(c)(3) | 2025 | $0 | $0 | 2025-06 |
| Diodes Foundation | 501(c)(3) | 2023 | | $12.2 million | 2025-12 |
| Don and Roy Splawn Charitable Foundation West Inc | 501(c)(3) | 1997 | | $3.6 million | 2024-12 |
| Dr Julius B Flynn Jr Memorial Scholarship Fund | 501(c)(3) | 2021 | | $57,634 | 2025-12 |
| Dream Force Foundation | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Early Years Program Pto Inc | 501(c)(3) | 2026 | | | |
| Eastern Shore Sports | 501(c)(3) | 2026 | | | |
| Ecool International Education Co | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Educate Delaware Inc | 501(c)(3) | 2024 | $0 | $0 | 2024-08 |
| Educate Theatre Camp Incorporated | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Education Resource Inc | 501(c)(3) | 2020 | $0 | $0 | 2023-12 |
| Educationdao Foundation | 501(c)(3) | 2024 | | | |
| Engineering Aviation Recording Society | 501(c)(3) | 2026 | | | |
| Esru Foundation | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Eta356 Inc | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Eudaimonia Project Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Evolua Corp | 501(c)(3) | 2025 | | | |
| Expanded Branches Community Development Corporation | 501(c)(3) | 2000 | $0 | $0 | 2025-12 |
| Fighting Abuse Through Education | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| First State Montessori Academy Pto Inc | 501(c)(3) | 2015 | $0 | $0 | 2026-06 |
| Founderorg Inc | 501(c)(3) | 2014 | | $14.2 million | 2024-12 |
| Frederick Douglass Marcus Garvey Leadership Academy | 501(c)(3) | 2020 | $0 | $634,436 | 2024-12 |
| Friends of Aui Inc | 501(c)(3) | 2013 | $0 | $0 | 2026-07 |
| Friends of Talley Pto Inc | 501(c)(3) | 2018 | $0 | $0 | 2024-08 |
| Friends of the American International School of Monrovia | 501(c)(3) | 2014 | $0 | $0 | 2026-07 |
| Friends of the Kirkwood Highway Library | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Gay D and William F Scott Family Foundation | 501(c)(3) | 2006 | | $1.9 million | 2025-10 |
| Generations of Promise Inc | 501(c)(3) | 2026 | | | |
| Georgian International University Inc | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Glory Ride Education Foundation | 501(c)(3) | 2026 | | | |
| Golden Opportunities Foundation | 501(c)(3) | 2026 | | | |
| Grad Village Corporation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Hamoye Foundation | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Health Diversity Equity & Inclusion Alliance | 501(c)(3) | 2024 | $0 | $0 | 2026-02 |
| Healthcare Awareness Education Charity Inc | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Heilongjiang University Alumni Association of the United States | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Henry C Conrad Alumni Association | 501(c)(3) | 2014 | $0 | $0 | 2026-06 |
| Hesed University Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Hexner Foundation | 501(c)(3) | 2014 | | $3.3 million | 2025-12 |
| Highlighting Hope Foundation Inc | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Homer Skelton Charitable Foundation | 501(c)(3) | 1995 | | $58.3 million | 2024-12 |
| Howard High Alumni Association Incorporated | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| Immaculate Conception High School International Alumnae Association | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Institute for Dignity and Grace | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Institute of Cubergy Interactions Ici Inc | 501(c)(3) | 2016 | | $19.7 million | 2025-12 |
| Integrity Foundation for St Timothys School Inc | 501(c)(3) | 2002 | | $1.5 million | 2025-12 |
| Interexchange Group Inc | 501(c)(3) | 2020 | | $1 | 2026-03 |
| International Accreditation Federation Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| International Automotive Federation Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| International Network in Philosophy of Religion Corp | 501(c)(3) | 2025 | | | |
| International Talent Hunt Foundation | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| James C Cassie Jr Charitable Foundation | 501(c)(3) | 2018 | | $1.9 million | 2025-12 |
| Jcap Inc | 501(c)(3) | 2024 | | | |
| John J Robinson Scholarship Fund | 501(c)(3) | 2011 | | $1.4 million | 2025-12 |
| John and Helen Timo Foundation | 501(c)(3) | 2014 | | $4.2 million | 2024-12 |
| Just Mentoring Inc | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Kappa Alpha Foundation for Leadership and Service | 501(c)(3) | 2000 | $0 | $0 | 2024-12 |
| Kinetic Council Incorporated | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Kratom Anonymous Foundation | 501(c)(3) | 2026 | | | |
| Kusum-Jyoti Foundation | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Latimgs Foundation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Luba Comprehensive High School Alumni Association | 501(c)(3) | 2013 | $0 | $0 | 2023-06 |
| Luminas Inc | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Lyc Foundation | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Melton Foundation | 501(c)(3) | 1992 | | $10.1 million | 2024-12 |
| Mongolian Students in America Association | 501(c)(3) | 2017 | $0 | $0 | 2026-02 |
| Montessori Green School Inc | 501(c)(3) | 2026 | | | |
| Mothers Advocating for School Kids Education Fund Inc | 501(c)(3) | 2025 | | | |
| Mt Pleasant Band Boosters Association Inc | 501(c)(3) | 2019 | $0 | $0 | 2025-06 |
| Mythos Sutra Foundation | 501(c)(3) | 2025 | | | |
| Naamans Creek Watershed Association | 501(c)(3) | 1998 | $0 | $0 | 2025-12 |
| National Asian Pacific American Law Student Association | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| National Association of Bankruptcy Trustees Foundation Inc | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| National Sorority of Phi Delta Kappa Inc | 501(c)(3) | 1976 | $0 | $0 | 2025-06 |
| Neurobeacon Foundation | 501(c)(3) | 2025 | | | |
| Next Up Athletes Foundation | 501(c)(3) | 2026 | | | |
| Noir Edu Inc | 501(c)(3) | 2025 | $0 | $0 | 2026-06 |
| Omni Youth Circle of New Castle Inc | 501(c)(3) | 2025 | $0 | $570 | 2024-12 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $0 | $0 | 2026-06 |
| Parliamentarians of Kent County Delaware PKCD | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Peace Page Foundation | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Ponix Cares Inc | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Powerup4more Inc | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Project Stempathy Foundation | 501(c)(3) | 2026 | $0 | $0 | 2025-08 |
| Psychiatric Leadership Collaborative Inc | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Pta Delaware Congress | 501(c)(3) | 1971 | $0 | $0 | 2026-06 |
| Push Through Corporation | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Randy Rainey Scholarship Fund | 501(c)(3) | 2017 | $0 | $0 | 2024-12 |
| Richey Elementary Pto Corporation | 501(c)(3) | 2023 | $0 | $0 | 2026-06 |
| Safe Streets Project Foundation | 501(c)(3) | 2026 | | | |
| Simplify Ai Foundation | 501(c)(3) | 2025 | | | |
| Skilgro Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Skylight Foundation Inc | 501(c)(3) | 2016 | | $12.3 million | 2025-05 |
| Skyline Support Association | 501(c)(3) | 2005 | $0 | $0 | 2026-06 |
| Smiths Global Nexus Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Sociedad de Biofisicos Latinoamericanos | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Springer Middle School Family Association | 501(c)(3) | 2018 | $0 | $0 | 2025-06 |
| Start Where You Are Inc | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Suzan Hughes Education Foundation | 501(c)(3) | 2017 | | $885,613 | 2024-12 |
| Swava Corporation | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Tax Club of New York | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Textbook Exchange Network Inc | 501(c)(3) | 2021 | $0 | $0 | 2025-06 |
| The Epiphany Project Inc | 501(c)(3) | 2026 | | | |
| The Gallagher Foundation | 501(c)(3) | 2026 | | | |
| The Gear for Grades Foundation | 501(c)(3) | 2026 | | | |
| The Isaac Woodard Foundation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| The Upsilon Foundation | 501(c)(3) | 2026 | | | |
| Tmpaa Institute Inc | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Trautwein Family Foundation | 501(c)(3) | 2019 | | $250,052 | 2025-12 |
| Troupe Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Umsizi Fund | 501(c)(3) | 2013 | | $7.3 million | 2024-12 |
| V I S I O N Program Inc | 501(c)(3) | 2025 | | | |
| Vernon Family Charitable Foundation Inc | 501(c)(3) | 2022 | | $1.2 million | 2024-12 |
| Volpe Foundation | 501(c)(3) | 2019 | | $366,549 | 2024-12 |
| West Point Society of Delmarva | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| William E and Patricia J Kassling Family Foundation | 501(c)(3) | 1997 | | $18 million | 2024-12 |
| Williams & Dollard Community Development Corporation | 501(c)(3) | 2013 | $0 | $300 | 2023-12 |
| Wilmington Friends School Inc | 501(c)(3) | 1972 | | | 2025-06 |
| Wilmington High School Alumni Inc | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Wilmington Sudbury School | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |