| Delaware State University | 501(c)(3) | 1992 | $275.5 million | $529.6 million | 2025-06 |
| Early College High School at Delaware State University Inc | 501(c)(3) | 2015 | $9.5 million | $8.8 million | 2025-06 |
| Academy of Dover Charter School | 501(c)(3) | 2016 | $9.1 million | $15.5 million | 2025-06 |
| Charter School Inc | 501(c)(3) | 1998 | $7 million | $13.1 million | 2025-06 |
| Delaware Technical & Community College Educational Foundation 866 | 501(c)(3) | 1969 | $6.8 million | $44.7 million | 2025-12 |
| Sage Future Inc | 501(c)(3) | 2024 | $2.3 million | $2.2 million | 2025-12 |
| American Academy of Sciences and Letters Inc | 501(c)(3) | 2023 | $2.2 million | $324,413 | 2025-12 |
| Communities in Schools of Delaware Inc | 501(c)(3) | 2022 | $2.1 million | $266,581 | 2025-06 |
| Work-Based Learning Alliance Inc | 501(c)(3) | 2023 | $2.1 million | $585,236 | 2025-06 |
| American College of Bankruptcy | 501(c)(6) | 1999 | $1.2 million | $1.8 million | 2025-12 |
| Malengo Inc | 501(c)(3) | 2022 | $1.1 million | $38,321 | 2024-12 |
| American College of Bankruptcy Foundation | 501(c)(3) | 2002 | $1 million | $3.6 million | 2025-12 |
| Delaware Center for Distance Adult Learning Inc | 501(c)(3) | 2002 | $629,850 | $2,493 | 2025-06 |
| Delaware Association for Adult Community Education Daace | 501(c)(3) | 1996 | $594,818 | $362,976 | 2025-06 |
| Epic Coalition Inc | 501(c)(3) | 2024 | $450,000 | $189,568 | 2025-12 |
| Center for Revolutionary Innovation & Superior Education Corp | 501(c)(3) | 2025 | $442,505 | $413,458 | 2025-12 |
| Delaware School Boards Association | 501(c)(4) | 2017 | $368,391 | $385,814 | 2026-06 |
| Master of Engineering Management Programs Consortium Inc Mempc | 501(c)(3) | 2025 | $353,608 | $287,851 | 2025-09 |
| TRUBEL&CO | 501(c)(3) | 2022 | $346,031 | $186,708 | 2025-07 |
| Du-Zhang Foundation Inc | 501(c)(3) | 2025 | $313,418 | $294,438 | 2025-08 |
| State Education Agency Directors of Arts Education | 501(c)(3) | 2006 | $308,906 | $173,217 | 2025-12 |
| Association for the Study of the Worldwide African Diaspora Inc | 501(c)(3) | 2001 | $246,915 | $44,589 | 2025-12 |
| Ghedi Global A Nonprofit Corporation | 501(c)(3) | 2025 | $230,811 | $230,676 | 2025-12 |
| Carpentries Inc | 501(c)(3) | 2023 | $215,159 | $202,801 | 2024-12 |
| Kai XR Futures Inc | 501(c)(3) | 2024 | $155,000 | $2,279 | 2025-12 |
| Center for Educational Progress | 501(c)(3) | 2025 | $137,850 | $84,569 | 2025-12 |
| Gender Research Advisory Council & Education Inc | 501(c)(3) | 2023 | $100,809 | $73,739 | 2025-12 |
| Association of Law School Diversity Professionals | 501(c)(3) | 2024 | $96,448 | $71,038 | 2024-12 |
| The Student Sponsorship Program of South Africa Inc | 501(c)(3) | 2002 | $61,915 | $132,708 | 2025-12 |
| Insead Alumni Association USA | 501(c)(7) | 2023 | $57,771 | $105,155 | 2024-12 |
| JXTX Foundation | 501(c)(3) | 2023 | $40,459 | $72,909 | 2025-12 |
| Delaware Recreation Education and Athletics Association | 501(c)(3) | 2024 | $32,372 | $323,503 | 2025-12 |
| Northeast Association of State Transportation Officials | 501(c)(6) | 2004 | $28,000 | $148,486 | 2025-08 |
| Dover Library Foundation Committee Inc | 501(c)(3) | 2009 | $18,268 | $375,682 | 2025-06 |
| Johnetta Betsch Cole Legacy Institute Inc | 501(c)(3) | 2023 | $5,275 | $2,699 | 2025-12 |
| Interspecies Io Inc | 501(c)(3) | 2021 | $5,043 | $54,159 | 2025-12 |
| A Peaceful Place Community Health Association | 501(c)(3) | 2025 | | | |
| Aapi Institute | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Adrienne Vaughan Books Change Lives Foundation | 501(c)(3) | 2025 | | | |
| Adulting Foundation | 501(c)(3) | 2022 | $0 | $0 | 2023-12 |
| Afloat Plan Home Limited | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Afri-Global Legacy Foundation | 501(c)(3) | 2025 | | | |
| Africa Climate Policy & Regulatory Environment Initiative Institute | 501(c)(3) | 2025 | | | |
| Al Amal Corporation | 501(c)(3) | 2024 | | | |
| Alumni Abroad Foundation | 501(c)(3) | 2026 | | | |
| American Classical Education Inc | 501(c)(3) | 2023 | $0 | $0 | 2024-06 |
| An Embassy Without A Country Scholarship Foundation Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Angioatlas | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Ardilla Mentor Inc | 501(c)(3) | 2025 | | | |
| Big Picture Education Barbados Char Ity Fund | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Black in Physiology Inc | 501(c)(3) | 2025 | | | |
| Born Brown Institute | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Caving Academy Inc | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Central Elementary School Parent Teacher Organization | 501(c)(3) | 2026 | | | |
| Collective Action Center | 501(c)(3) | 2026 | | | |
| Collegiate Penetration Testing Competition LTD | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Corporacion Elite Foundation | 501(c)(3) | 2026 | | | |
| Curious Cat Management Improvement Institute | 501(c)(3) | 2024 | | $22,520 | 2025-12 |
| DHS Athletic Booster Clubs | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| Dahaleez Foundation | 501(c)(3) | 2026 | | | |
| Delaware Families Inc | 501(c)(3) | 2006 | $0 | $0 | 2024-12 |
| Delaware Teacher Academy Foundation | 501(c)(3) | 2019 | $0 | $0 | 2026-06 |
| Delmarva Digital Learning Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Digitalplat Foundation Inc | 501(c)(3) | 2026 | | | |
| Djoumbe Fatima Foundation | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Dover Air Force Base Middle School Pto | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Dover High School Alumni Association | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Dover High School Band Boosters Inc | 501(c)(3) | 2023 | $0 | $0 | 2025-06 |
| Dover Middle School Campus Performing Arts Boosters | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| Dr S Stevan Dweck Foundation | 501(c)(3) | 2025 | | | |
| Dridi Foundation Inc | 501(c)(3) | 2024 | | | |
| Early College High School at Delawa Re State University Ptsa | 501(c)(3) | 2026 | | | |
| Egirl Power Inc | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Eli5 Dao | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Empowered Global Inc | 501(c)(3) | 2025 | | | |
| Esee Inc | 501(c)(3) | 2023 | $0 | $0 | 2023-08 |
| Eyeguru | 501(c)(3) | 2024 | | | |
| Fighaven Foundation | 501(c)(3) | 2026 | | | |
| First State Constitutional Scholarship Foundation | 501(c)(3) | 2014 | | $1 | 2023-12 |
| Forward From Love Nonprofit Corporation | 501(c)(3) | 2025 | | | |
| Friends of Delaware Libraries Inc | 501(c)(3) | 2000 | $0 | $0 | 2026-05 |
| Friends of Kent County Public Library | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Friends of the Library for the BLND & Phys Handicap of State of de Inc | 501(c)(3) | 1996 | $0 | $0 | 2026-04 |
| Futfininfo Corp | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Gerald Harris Foundation | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Global Network for Good Inc | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Global Ties Alliance Foundation | 501(c)(3) | 2025 | $0 | $0 | 2026-07 |
| Glowi Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Groundrise Collective | 501(c)(3) | 2026 | | | |
| Healthcare Simulation Institute | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Higher Learning Lab Co | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Holy Cross High School Inc | 501(c)(3) | 2024 | | | |
| Hope for Girls and Women USA Corporation | 501(c)(3) | 2025 | | | |
| Iachieve Foundation | 501(c)(3) | 2024 | | | |
| Impact Delaware | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Ingressive for Good Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Insights To English Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| Inurere Foundation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Io Network Us Foundation | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Kcar Scholarship Foundation Inc | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Kent County Amateur Radio Club | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Kingdom Christian Academy Inc | 501(c)(3) | 2004 | | | 2011-12 |
| Korean International Mba Associatio N Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-06 |
| Litfin501c Foundation | 501(c)(3) | 2026 | | | |
| Living Better Inc | 501(c)(3) | 2024 | | | |
| Mastery Hour | 501(c)(3) | 2026 | | | |
| Metalmorphosis Customs Inc | 501(c)(3) | 2026 | | | |
| Mosaik Global Foundation | 501(c)(3) | 2025 | | $128,496 | 2025-12 |
| National Association of Holmes Scholars Alumni Inc | 501(c)(3) | 2005 | $0 | $0 | 2026-06 |
| National Auxiliary of Lincoln University | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| National Institute of Governmental Purchasing Inc | 501(c)(3) | 1945 | $0 | $0 | 2025-12 |
| National Sorority of Phi Delta Kappa | 501(c)(3) | 1976 | $0 | $0 | 2026-06 |
| National Sovereighty Foundation | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Nebj Scholarship Fund Inc | 501(c)(3) | 2026 | | | |
| New Foundations of Learning Inc | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Next Step Collective Foundation | 501(c)(3) | 2025 | | | |
| No Name Foundation | 501(c)(3) | 2025 | $0 | $1 | 2025-12 |
| Nonprofit Your Business Corp | 501(c)(3) | 2025 | | | |
| Organization of Chinese Career Inc | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Patricia A Beaulieu Memorial Scholarship Fund Inc | 501(c)(3) | 2006 | $0 | $0 | 2024-12 |
| Peace Connection Foundation | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Primrose Education Foundation | 501(c)(3) | 2025 | | $1 | 2025-12 |
| Pta Delaware Congress | 501(c)(3) | 1971 | $0 | $0 | 2025-06 |
| Ptcmi Management Inc | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Pubsub Global Inc | 501(c)(3) | 2026 | | | |
| Ready Force Cyber | 501(c)(3) | 2023 | $0 | $0 | 2025-09 |
| Recursive Pioneer Corporation | 501(c)(3) | 2024 | | | |
| Reeves Organization for Growth and Leadership | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Rhody Exchange Inc | 501(c)(3) | 2025 | | | |
| Scholarship Support Services Inc | 501(c)(3) | 2026 | | | |
| Sciall Org Inc | 501(c)(3) | 2017 | $0 | $0 | 2023-12 |
| Sdcforme Us Citizens Alliance Inc | 501(c)(4) | 2026 | | | |
| Seeka Educational Foundation | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Self-Direction Center | 501(c)(3) | 2025 | | | |
| Sigma Outreach and Education Initiative Inc | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Sigma Phi Epsilon Fraternity Inc | 501(c)(7) | 2017 | $0 | $0 | 2025-12 |
| Silicon 54 Foundation | 501(c)(3) | 2021 | $0 | $0 | 2026-06 |
| Simply Wiser in Stem Inc | 501(c)(3) | 2025 | | | |
| Skillcamp Co | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Skygoats Parachute Team Alumni Asso Ciation Incorporated | 501(c)(3) | 2026 | | | |
| Stony Brook Black and Latino Alumni Association | 501(c)(3) | 2022 | | | |
| Stop Asian Hate Global Network Inc | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Taiwan America Student Conference Inc | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Teach Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| The Alexander Hamilton Foundation | 501(c)(3) | 2026 | | | |
| The Merl Tech Initiative Inc | 501(c)(3) | 2026 | | | |
| The Soraya Foundation Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| The William Penn High School Graduation Foundation | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Trace Initiative | 501(c)(3) | 2026 | | | |
| Trafika Europe Books Inc | 501(c)(3) | 2024 | | | |
| Try Ai Inc | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Tullopy Inc | 501(c)(3) | 2023 | | $44,446 | 2025-12 |
| Udya Dbanu Sahasrabha | 501(c)(3) | 2026 | $0 | $0 | 2026-03 |
| University Information Policy Officers Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Urban Planning Community Development Students of America in | 501(c)(3) | 2025 | | | |
| Utila Childrens Relief Foundation | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Victor Preston Foundation | 501(c)(3) | 2023 | | $1,375 | 2025-12 |
| W Reily Brown Pto | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| WNBRB Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Weird Science Lab Edutech Inc | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| When We Grow Up Foundation | 501(c)(3) | 2025 | | | |
| Wilkinson Stem Education Foundation | 501(c)(3) | 2026 | | | |
| Women in Aviation International Delaware Diamond Chapter | 501(c)(3) | 2003 | $0 | $0 | 2024-09 |
| Words for Wellness Inc | 501(c)(3) | 2024 | | | |
| XR Inclusion | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Youth Passion Project Inc | 501(c)(3) | 2020 | $0 | $0 | 2026-08 |
| Youths for Excellence Limited | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Z Revolution Center Inc | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Zeta Rho Lambda Education Foundation Inc | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |