Nonprofits in Washington, District of Columbia
Nonprofits in Washington, District of Columbia. Browse 18,177 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
- Sigma Theta Tau International Inc
EIN 900580512 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Sign of Jonah Accupuncture Clinic Inc
EIN 521796774 · Headquarters: Washington, DC, US · Health Care · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Sign Performing Artists Inc
EIN 264534433 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Sign Up to Vote
EIN 871294484 · Headquarters: Washington, DC, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Signsplit Foundation
EIN 413353485 · Headquarters: Washington, DC, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Signum Deaf Empowerment Foundation
EIN 413151072 · Headquarters: Washington, DC, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sikh American Legal Defense & Education
EIN 043382840 · Headquarters: Washington, DC, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sikh Free Press
EIN 471364597 · Headquarters: Washington, DC, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Silence Kills
EIN 854158908 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Silent Partners
EIN 223975031 · Headquarters: Washington, DC, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Silent Soarers Inc
EIN 800192407 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Siltie Community Association
EIN 800439658 · Headquarters: WASHINGTON, DC, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990
- Silverado Policy Accelerator Inc
EIN 851262290 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Silverado Policy Accelerator Inc
EIN 851886884 · Headquarters: WASHINGTON, DC, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990
- Silverlining
EIN 371908884 · Headquarters: WASHINGTON, DC, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990
- Silverlining Policy Inc
EIN 833077934 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Simcha Bbg
EIN 272018212 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Simon Wiesenthal Aza 2525
EIN 271999490 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Sinai Assisted Housing Foundation Inc
EIN 521788685 · Headquarters: Washington, DC, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sinai House a K a Raphael House
EIN 237088171 · Headquarters: Washington, DC, US · Human Services · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- Sindhi Foundation Inc
EIN 473433493 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Singing A-z
EIN 651285171 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Sior Foundation
EIN 520808480 · Headquarters: WASHINGTON, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sipcares
EIN 873991558 · Headquarters: WASHINGTON, DC, US · Health Care · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Sipri North America
EIN 900790172 · Headquarters: WASHINGTON, DC, USA · International, Foreign Affairs & National Security · Latest available filing year: 2014 · Primary form: IRS Form 990
- Sirius Foundation Inc
EIN 141847166 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sistah of Survival
EIN 933517214 · Headquarters: Washington, DC, US · Human Services · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Sister Cities International Foundation
EIN 831090353 · Headquarters: WASHINGTON, DC, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sister Cities International Inc
EIN 520859021 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sister-to-sista Circle of Love
EIN 931660435 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sisters Empowered to Promote Interests & Opportunities in Arts
EIN 521957868 · Headquarters: washington, DC, US · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Sisters for Excellence Inc
EIN 522277577 · Headquarters: Washington, DC, US · Youth Development · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Sisters Lead Sisters Vote Inc
EIN 825413976 · Headquarters: Washington, DC, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sistersondeck
EIN 872166476 · Headquarters: Washington, DC, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Sitar Arts Center
EIN 522113471 · Headquarters: WASHINGTON, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sitting Room Ministry Inc
EIN 833122462 · Headquarters: Washington, DC, US · Employment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Sixteen Hundred Eye Street Corporation
EIN 520854445 · Headquarters: Washington, DC, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2020 · Primary form: IRS Form 990
- Sixteen Thirty Fund
EIN 264486735 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sixth & I
EIN 331036146 · Headquarters: WASHINGTON, DC, United States · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sjac
EIN 813014704 · Headquarters: WASHINGTON, DC, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990
- Sjcs
EIN 522137200 · Headquarters: WASHINGTON, DC, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990
- Sk Shurberg-klein Foundation Inc
EIN 522025779 · Headquarters: WASHINGTON, DC, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Skinner Leadership Institute Inc
EIN 521830868 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Skydragon Foundation Inc Skydragon Foundation Inc
EIN 200852181 · Headquarters: Washington, DC, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- Slavic Art Alliance
EIN 863341815 · Headquarters: WASHINGTON, DC, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Slavic Foundation
EIN 142001736 · Headquarters: Washington, DC, US · International, Foreign Affairs & National Security · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Slovak American Business and Innovation Council Inc
EIN 810976790 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Small Business Alliance for Nutrition
EIN 611624765 · Headquarters: WASHINGTON, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Small Business Association For International Companies
EIN 384089459 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Small Business Association for International Companies
EIN 464645014 · Headquarters: WASHINGTON, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2017 · Primary form: IRS Form 990-PF
- Small Business Investor Alliance
EIN 530259837 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Small Business Majority Foundation Inc
EIN 030576666 · Headquarters: WASHINGTON, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- Small Business Multicloud Coalition
EIN 331864665 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Small Enterprise Assistance Funds
EIN 133535334 · Headquarters: WASHINGTON, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- Small Environmental Business Action Coalition Inc
EIN 522337987 · Headquarters: Washington, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Small Multifamily Institute
EIN 392230537 · Headquarters: Washington, DC, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Small Point Summer School Inc
EIN 010262891 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Small Town American Media
EIN 871053357 · Headquarters: WASHINGTON, DC, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Small Town Truth
EIN 871216054 · Headquarters: WASHINGTON, DC, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Small Uav Coalition Inc
EIN 471867920 · Headquarters: WASHINGTON, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- Smallworld
EIN 853226968 · Headquarters: Washington, DC, US · Youth Development · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Smart Activities for Fitness and Education Safe
EIN 521791634 · Headquarters: washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Smart Electric Power Alliance
EIN 521794095 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Smart Foundation
EIN 473035199 · Headquarters: Washington, DC, US · Human Services · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Smart General Committee No 001-Sm
EIN 475643679 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2021 · Primary form: IRS Form 990
- Smart General Committee No 002-Sm
EIN 475658103 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Smart Group Vstd Plan and Trust
EIN 276365479 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990
- Smart Growth America
EIN 270038938 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Smart Meter Manufacturers Association of America Inc
EIN 275010267 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Smart Surfaces Coalition
EIN 833274838 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Smart with a Heart
EIN 880712229 · Headquarters: Washington, DC, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Smarter Health Care Coalition
EIN 844263042 · Headquarters: WASHINGTON, DC, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990
- Smarter Regulation
EIN 923566420 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Smartish Pace
EIN 300100275 · Headquarters: WASHINGTON, DC, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Smartmove Cbl
EIN 814173965 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Smex USA Inc
EIN 923039480 · Headquarters: Washington, DC, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990
- Smile & Olive Foundation
EIN 815129089 · Headquarters: WASHINGTON, DC, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990
- Smiles for Guatemala
EIN 412620756 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Smith & Atcheson Fund for Excellence Inc
EIN 823533349 · Headquarters: Washington, DC, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Smith College Class of 1990
EIN 043088288 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- Smith College Class of 1994
EIN 010491403 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Smith Farm Ltd
EIN 521977976 · Headquarters: WASHINGTON, DC, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990
- Smith Foundation Inc
EIN 815113942 · Headquarters: Washington, DC, US · Youth Development · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Smithsonian Early Enrichment Center
EIN 521545108 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Smithsonian Institution
EIN 530206027 · Headquarters: WASHINGTON, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990
- Smokefree Dc Inc
EIN 201166371 · Headquarters: Washington, DC, US · Mental Health & Crisis Intervention · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Smr Foundation
EIN 411957680 · Headquarters: WASHINGTON, DC, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- SMYAL Inc
EIN 521394900 · Headquarters: Washington, DC, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sncc Legacy Project
EIN 273057586 · Headquarters: WASHINGTON, DC, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- So Kids SOAR
EIN 611716117 · Headquarters: Washington, DC, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990
- Soar
EIN 814103992 · Headquarters: WASHINGTON, DC, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Soaring Toward Educational Enrichment Via Eqine Discovery Inc
EIN 200358578 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Sobeknefrus Nation Inc
EIN 933633942 · Headquarters: washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Soccer Courts America
EIN 461283588 · Headquarters: washington, DC, US · Recreation & Sports · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Social Aid for West Africa
EIN 475685396 · Headquarters: Washington, DC, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Social and Promotional Gaming Assoc
EIN 993230655 · Headquarters: WASHINGTON, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990
- Social Art and Culture
EIN 271071883 · Headquarters: WASHINGTON, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Social Change
EIN 853650236 · Headquarters: Washington, DC, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Social Determinants of Health Institute Inc
EIN 464874596 · Headquarters: Washington, DC, US · Health Care · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Social Distance Delivery Inc
EIN 852092104 · Headquarters: washington, DC, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-N