Nonprofits in District of Columbia
Nonprofits in District of Columbia. Browse 18,651 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
- Ntl Institute for Applied Behavioral Science
EIN 520851457 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Nu Alpha Kdp Alumni Corp
EIN 352234168 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Nu Sass Productions
EIN 810989746 · Headquarters: Washington, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Nu Vision Media Foundation
EIN 301028855 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Nubian Language Society
EIN 833685676 · Headquarters: Washington, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Nuca of Dc Foundation for Education
EIN 842761603 · Headquarters: WASHINGTON, DC, USA · Education · Latest available filing year: 2019 · Primary form: IRS Form 990-PF
- Nuclear Energy and National Security Coalition
EIN 992089884 · Headquarters: WASHINGTON, DC, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990
- Nuclear Energy Institute
EIN 521209124 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Nuclear Matters
EIN 823863414 · Headquarters: WASHINGTON, DC, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990
- Nuclear Matters Inc
EIN 472496174 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Nuclear Power Labor Management Cooperation Committee Trust
EIN 272715179 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Nuclear Threat Initiative Inc
EIN 522289435 · Headquarters: Washington, DC, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990
- Numbersalive Foundation
EIN 832762214 · Headquarters: Washington, DC, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Nurish
EIN 461518948 · Headquarters: Washington, DC, US · Food, Agriculture & Nutrition · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Nurse Practitioner Association of the District of Columbia Inc
EIN 710964052 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Nurses Organization of the Veterans Affairs
EIN 911299535 · Headquarters: Washington, DC, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Nuru International
EIN 261250716 · Headquarters: WASHINGTON, DC, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990
- Nutmeg Research Initiative Inc
EIN 841921820 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990
- NVFC 21St Century Fund
EIN 521962943 · Headquarters: Washington, DC, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990
- Nw Community Food
EIN 921285692 · Headquarters: WASHINGTON, DC, USA · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990
- Nw Opportunity Partners Community Development Corporation
EIN 871602821 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Nw Saturday Academy
EIN 472299274 · Headquarters: WASHINGTON, DC, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Nwc Spouse Club
EIN 934171374 · Headquarters: FT L J MCNAIR, DC, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nyame Kua Farm Collective Foundation
EIN 992988286 · Headquarters: Washington, DC, US · Food, Agriculture & Nutrition · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Nyame Nti Foundation for Health and Healing
EIN 841886925 · Headquarters: Washington, DC, US · Health Care · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Nysae Education & Research Foundation
EIN 134135373 · Headquarters: WASHINGTON, DC, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- O Street Museum Foundation
EIN 311550078 · Headquarters: WASHINGTON, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Oak Hill Cemetery Company
EIN 530120090 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oak Hill Cemetery Historic Preservation Foundation
EIN 562369785 · Headquarters: WASHINGTON, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oakland Bbg 2
EIN 271999476 · Headquarters: WASHINGTON, DC, US · Education · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Oakw Fund
EIN 884172468 · Headquarters: WASHINGTON, DC, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oasis Community Partners
EIN 810709350 · Headquarters: WASHINGTON, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2020 · Primary form: IRS Form 990
- Oasis Peace Initiative
EIN 820954607 · Headquarters: Washington, DC, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Obatalas Children
EIN 874029371 · Headquarters: WASHINGTON, DC, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Oberlin Cooperative Education Fund Inc
EIN 884398759 · Headquarters: WASHINGTON, DC, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Obinofia USA Inc
EIN 852613530 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Observer Research Foundation America
EIN 852694328 · Headquarters: WASHINGTON, DC, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990
- Obstetrics and Gynecology Dept
EIN 880993486 · Headquarters: Washington DC, DC, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Ocase Foundation Inc
EIN 455238766 · Headquarters: Washington, DC, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ocean Ana Rising Incorporated
EIN 202179933 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Ocean Awareness Project Inc
EIN 141861309 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ocean Carrier Equipment Management Association Inc
EIN 202563404 · Headquarters: WASHINGTON, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ocean Conservancy
EIN 237245152 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ocean Doctor Inc
EIN 461431787 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Ocean Risk and Resilience Action Alliance Inc
EIN 833580499 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ocean Stewards Institute
EIN 208882514 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oceana
EIN 510401308 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oceana Action Inc
EIN 311814181 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oceangate Foundation
EIN 463977125 · Headquarters: Washington, DC, USA · Science & Technology · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- Ocular Melanoma Foundation
EIN 200355509 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Odaa Bulluq Global Foundation Obgf
EIN 990984381 · Headquarters: NW DC, DC, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Odd Fellows Temple Independent Order of Odd Fellows Dc
EIN 530087680 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Odi North America Inc
EIN 933388787 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Off My Block
EIN 475522600 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Off the Street Ministries Inc
EIN 474965806 · Headquarters: WASHINGTON, DC, US · Religion Related · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Office of Management and Budget Employee Welfare Fund
EIN 521911768 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Official Service Dogs
EIN 844517450 · Headquarters: Washington, DC, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Official Tottenham Hotspur Supporters Club of Washington Dc
EIN 861862314 · Headquarters: Washington, DC, US · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Offshore Research Association Unasyest
EIN 854341934 · Headquarters: WASHINGTON, DC, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Offshore Wind Development Coalition Inc
EIN 273544829 · Headquarters: WASHINGTON, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- OGG
EIN 872545911 · Headquarters: WASHINGTON, DC, USA · Education · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ
- Ogwashi-uku Association Dmv Incorporated
EIN 993097638 · Headquarters: Washington, DC, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ogwashi-Uku Association U-S-A Inc
EIN 364478416 · Headquarters: Washington, DC, US · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Ohavim Bbg 418
EIN 272017099 · Headquarters: WASHINGTON, DC, US · Education · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Ohev Bbg
EIN 272033838 · Headquarters: WASHINGTON, DC, US · Education · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Ohio Black Civic Engagement Coalition
EIN 331280966 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ohio Business Council Inc C/o Hannah Schmidt Alpine Group
EIN 472581851 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ohio Conservative Restoration Project
EIN 871142309 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- Ohio Cued Speech Association
EIN 311255263 · Headquarters: Washington, DC, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Ohio Society of Washington Dc
EIN 204477796 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Ohio State University Alumni Association Inc
EIN 311484803 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Ohioans for Free and Fair Elections
EIN 871141973 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- Oikocredit
EIN 363697513 · Headquarters: Washington, DC, USA · Religion Related · Latest available filing year: 2016 · Primary form: IRS Form 990
- Oil and Gas Educational Foundation Incorporated
EIN 521934264 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Oil and Natural Gas Industry Labor Management Committee
EIN 270567842 · Headquarters: WASHINGTON, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oil Change International Inc
EIN 203272355 · Headquarters: Washington, DC, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oil Change USA
EIN 743181474 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oil of Joy Ministries Inc
EIN 472234560 · Headquarters: Washington, DC, US · Human Services · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Old Grand Theater Company
EIN 454323764 · Headquarters: washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Old School Boxing Athletic Center
EIN 205960251 · Headquarters: Washington, DC, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Old Soldiers Home Foundation Inc
EIN 815214355 · Headquarters: WASHINGTON, DC, USA · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Old Umuahia Development Union North America
EIN 510402326 · Headquarters: WASHINGTON, DC, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Olive Branch Inc
EIN 522145325 · Headquarters: Washington, DC, US · Human Services · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Oliver and Harriet Sockwell Foundation
EIN 521661837 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Olmsted Network Inc
EIN 133052765 · Headquarters: WASHINGTON, DC, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990
- Olympism for Humanity Alliance
EIN 473931589 · Headquarters: WASHINGTON, DC, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Omega Life Membership Foundation
EIN 222608127 · Headquarters: WASHINGTON, DC, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Omega Network for Action Inc
EIN 852947719 · Headquarters: Washington, DC, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Omega Psi Phi Fraternity
EIN 461873882 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Omega Psi Phi Fraternity
EIN 526071184 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Omega Psi Phi Fraternity Inc Alpha Chapter
EIN 526057267 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Omega Theta Rho Sorority
EIN 843648496 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Omicron Delta Epsilon Intl Honor Society in Economics Inc
EIN 237350210 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Omicron Delta Epsilon Intl Honor Society in Economics Inc
EIN 742593248 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Omicron Delta Epsilon Intl Honor Society in Economics Inc
EIN 911955148 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Omicron Eta Lambda Charitable Foundation
EIN 522001949 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Omicron Omicron Charitable Foundation
EIN 853320839 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Omicron Phi Zeta
EIN 811574929 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Omna Tigray
EIN 862849940 · Headquarters: WASHINGTON, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- OmniAir Certification Services
EIN 452722778 · Headquarters: Washington, DC, USA · Science & Technology · Latest available filing year: 2016 · Primary form: IRS Form 990