Nonprofits in Delaware
Nonprofits in Delaware. Browse 11,586 public nonprofit profiles. Review organization identities, available filing years, and their complete CharitySense profiles.
Location refers to headquarters recorded in public sources, not an organization’s service area. Classification describes its reported category and does not assess its effectiveness.
Nonprofit profiles
- Nathan Hale Institute
EIN 333446562 · Headquarters: Dover, DE, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Nathan M Clark Foundation 2574-00-48
EIN 201201954 · Headquarters: WILMINGTON, DE, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- National Active and Retired Federal Employees Association
EIN 510270868 · Headquarters: Bridgeville, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Active and Retired Federal Employees Association
EIN 510277535 · Headquarters: WILMINGTON, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Active and Retired Federal Employees Association
EIN 510283429 · Headquarters: MILFORD, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Active and Retired Federal Employees Association
EIN 510316129 · Headquarters: FREDERICA, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Active and Retired Federal Employees Association
EIN 510316936 · Headquarters: Bridgeville, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Active and Retired Federal Employees Association
EIN 582072218 · Headquarters: NEW CASTLE, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Air Traffic Controllers Association
EIN 510324825 · Headquarters: New Castle, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Alliance on Mental Illness in Delaware Foundation
EIN 222490797 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Arab American Bar Association
EIN 934871456 · Headquarters: Wilmington, DE, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Asian Pacific American Law Student Association
EIN 421624445 · Headquarters: Wilmngton, DE, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Assciation of Letter Carriers Branch 191
EIN 516018041 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- National Association for Family and Community Education
EIN 510274916 · Headquarters: Newark, DE, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- National Association for the Advancement of Future Minorities C
EIN 881280897 · Headquarters: Wilmington, DE, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- National Association of Bankruptcy Trustees Foundation Inc
EIN 880790762 · Headquarters: Wilmington, DE, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Boards of Pharmacy District 2 Inc
EIN 463585060 · Headquarters: BEAR, DE, US · Community Improvement & Capacity Building · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- National Association of Hispanic Nurses Foundation Inc
EIN 260509392 · Headquarters: New Castle, DE, US · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- National Association of Holmes Scholars Alumni Inc
EIN 470934080 · Headquarters: Dover, DE, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Housing & Redevelopment Officials
EIN 510314446 · Headquarters: Newark, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Insurance Women
EIN 510272536 · Headquarters: MAGNOLIA, DE, US · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- National Association of Insurance Women
EIN 510326061 · Headquarters: Frankford, DE, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- National Association of Letter Carriers
EIN 510372054 · Headquarters: Milford, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Letter Carriers
EIN 516021845 · Headquarters: MILFORD, DE, USA · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- National Association of Letter Carriers
EIN 516021847 · Headquarters: Newcastle, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Moot Court
EIN 922525254 · Headquarters: Dover, DE, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Association of Negro Business and Professional Womens C
EIN 481285872 · Headquarters: New Castle, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Association of Neonatal Nurses
EIN 273421523 · Headquarters: Middletown, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Parliamentarians
EIN 431558368 · Headquarters: Dover, DE, US · Community Improvement & Capacity Building · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- National Association of Teachers of Singing Inc
EIN 800756976 · Headquarters: Newark, DE, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- National Association of Therapy Animal Organizations
EIN 991933984 · Headquarters: Wilmington, DE, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of University Women
EIN 237207788 · Headquarters: WILMINGTON, DE, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- National Association of Veterinary Emergency Medical Services
EIN 834670563 · Headquarters: Dover, DE, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- National Association of Women Business Owners Delaware Inc
EIN 510399777 · Headquarters: Greenville, DE, US · Housing & Shelter · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- National Auxiliary of Lincoln University
EIN 874068280 · Headquarters: Dover, DE, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Bee Inc
EIN 651189809 · Headquarters: Hockessin, DE, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Campers and Hikers Association of Delaware
EIN 237104076 · Headquarters: Viola, DE, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- National Center for Acupuncture Safety and Integrity
EIN 475350685 · Headquarters: Wilmington, DE, US · Public & Societal Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- National Coalition of 100 Black Women Inc
EIN 510378158 · Headquarters: WILMINGTON, DE, USA · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990
- National Collegiate Rugby Organization Inc
EIN 813992951 · Headquarters: Wilmington, DE, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Community Corporation
EIN 465657085 · Headquarters: WILMINGTON, DE, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Conservation District Employees Association Inc
EIN 203452791 · Headquarters: DOVER, DE, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- National Consortium for Physical Education for Individuals with Dis
EIN 274000249 · Headquarters: Hockessin, DE, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Consortium of Tasc Programs Inc
EIN 930944258 · Headquarters: NEW CASTLE, DE, USA · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ
- National Council of Teachers of English Delaware Dept of Educ
EIN 860722078 · Headquarters: Dover, DE, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- National Council of the United States Society of St Vincent Depau
EIN 270958228 · Headquarters: SEAFORD, DE, US · Human Services · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- National Council of the United States Society of St Vincent Depau
EIN 383806945 · Headquarters: Seaford, DE, US · Community Improvement & Capacity Building · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- National Council of the United States Society of St Vincent Depau
EIN 383806948 · Headquarters: Seaford, DE, US · Community Improvement & Capacity Building · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- National Divorce Support Alliance Inc
EIN 931408149 · Headquarters: Dover, DE, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- National Exchange Club
EIN 591692878 · Headquarters: Newark, DE, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- National Federation of the Blind of Delaware
EIN 237024549 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Guard Association Of
EIN 237382759 · Headquarters: New Castle, DE, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National High School Mock Trial Championship Inc
EIN 721154430 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Huguenot Society
EIN 522046088 · Headquarters: Bear, DE, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- National Humane Society
EIN 582399783 · Headquarters: Newark, DE, US · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Institute of Governmental Purchasing Inc
EIN 510394354 · Headquarters: NewCastle, DE, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Jazz Festival Inc
EIN 833751080 · Headquarters: Middletown, DE, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- National Lincoln Sheep Breeders Asso
EIN 386089683 · Headquarters: Greenwood, DE, US · Food, Agriculture & Nutrition · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- National Miss Juneteenth Scholarship
EIN 874227985 · Headquarters: Wilmington, DE, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Network for Justice
EIN 825506342 · Headquarters: MILFORD, DE, USA · Public & Societal Benefit · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ
- National Organization for Women Inc
EIN 421763749 · Headquarters: Newark, DE, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- National Organization for Women Inc
EIN 510242818 · Headquarters: Newark, DE, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- National Organization for Women Inc
EIN 862255031 · Headquarters: Claymont, DE, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- National Organization of Black Law Enforcement Exe
EIN 510326565 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Organization of Mothers of Twins Clubs Inc
EIN 510295321 · Headquarters: MIDDLETOWN, DE, US · Human Services · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- National Organization of Mothers of Twins Clubs Inc
EIN 510395601 · Headquarters: MILFORD, DE, US · Human Services · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- National Organization Pro-human Rights Inc
EIN 452918676 · Headquarters: New Castle, DE, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- National Panhellenic Council of New Castle County
EIN 800655995 · Headquarters: Bear, DE, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Pediatric Disaster Coalition Inc
EIN 393271103 · Headquarters: DOVER, DE, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- National Rural Lender Roundtable
EIN 874068801 · Headquarters: Rehoboth Beach, DE, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- National Rural Letter Carriers Association
EIN 510362816 · Headquarters: Milford, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Society Colonial Dames Xvii Century
EIN 510283407 · Headquarters: Middletown, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Society Daughters of Founders & Patriots of America
EIN 237584650 · Headquarters: Bear, DE, US · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- National Society Daughters of the British Empire in the United State
EIN 576021756 · Headquarters: Newark, DE, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Society Daughters of the British Empire in the United State
EIN 800553316 · Headquarters: New Castle, DE, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Society of New England Women
EIN 590294888 · Headquarters: Bear, DE, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- National Society of the Children of the American Revolution
EIN 237248841 · Headquarters: Lewes, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Society of the Children of the American Revolution
EIN 800246923 · Headquarters: Middletown, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Society of the Colonial Dames of America in the State of Delaware
EIN 516016910 · Headquarters: WILMINGTON, DE, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Society of the Daughters of the American Revolution
EIN 237284027 · Headquarters: Georgetown, DE, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Society of the Daughters of the American Revolution
EIN 516015397 · Headquarters: WILMINGTON, DE, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Society of the Daughters of the American Revolution
EIN 516016950 · Headquarters: Nassau, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Society of the Daughters of the American Revolution
EIN 516016951 · Headquarters: Lewes, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Society of the Daughters of the American Revolution
EIN 516018025 · Headquarters: Harrington, DE, US · Arts, Culture & Humanities · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- National Society of the Daughters of the American Revolution
EIN 516018026 · Headquarters: SEAFORD, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Society of the Daughters of the American Revolution
EIN 516018181 · Headquarters: Frederica, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Society of the Daughters of the American Revolution
EIN 710740539 · Headquarters: Frederica, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Society of the Daughters of the American Revolution
EIN 920953085 · Headquarters: New Castle, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Society of the Sons of the American Revolution
EIN 510357383 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Society of the Sons of the American Revolution
EIN 516018163 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Society of the Sons of the American Revolution
EIN 911771536 · Headquarters: Magnolia, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Society of the Sons of the American Revolution
EIN 911771542 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- National Society of Tole and Decorative Painters Inc
EIN 510300178 · Headquarters: Wilmington, DE, US · Arts, Culture & Humanities · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- National Society of Tole and Decorative Painters Inc
EIN 510385474 · Headquarters: Lewes, DE, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- National Society United States Daughters of 1812
EIN 474903161 · Headquarters: Frederica, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Sojourners Inc
EIN 510253187 · Headquarters: Middletown, DE, US · Recreation & Sports · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- National Sorority of Phi Delta Kappa
EIN 510189579 · Headquarters: Dover, DE, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Sorority of Phi Delta Kappa Inc
EIN 510189542 · Headquarters: WILMINGTON, DE, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Sovereignty Foundation
EIN 861354556 · Headquarters: Dover, DE, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Speakers Association
EIN 742422632 · Headquarters: Wilmington, DE, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N