Nonprofits in Seattle, Washington
Nonprofits in Seattle, Washington. Browse 7,909 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
- Illinois Design Challenge Corp
EIN 922704533 · Headquarters: Seattle, WA, US · Science & Technology · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Illuminating Humankindness
EIN 821392741 · Headquarters: SEATTLE, WA, USA · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Illyricum Movement
EIN 461394300 · Headquarters: Seattle, WA, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990
- Imaginal Network
EIN 863859151 · Headquarters: Seattle, WA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Immanuel Community Services
EIN 260881300 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990
- Immigrant Guide
EIN 833303032 · Headquarters: SEATTLE, WA, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Immigration Counseling and Referral Service
EIN 843246020 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ
- Impact 100 Seattle
EIN 842569736 · Headquarters: Seattle, WA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990
- Impact Capital
EIN 943196958 · Headquarters: SEATTLE, WA, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990
- Impact Foundation
EIN 352810682 · Headquarters: Seattle, WA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Impact Latin America
EIN 851316184 · Headquarters: Seattle, WA, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990
- Impact Partners Ua
EIN 334975343 · Headquarters: Seattle, WA, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Impactful Fund
EIN 452562072 · Headquarters: Seattle, WA, United States · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Improved Benevolent & Protective Order of Elks of the World
EIN 910952589 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- In Ballard Merchants Association
EIN 270252836 · Headquarters: SEATTLE, WA, USA · Community Improvement & Capacity Building · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ
- Inatai Community Fund
EIN 911246278 · Headquarters: SEATTLE, WA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Inatai Foundation
EIN 300889914 · Headquarters: SEATTLE, WA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990
- Incayuda
EIN 274372998 · Headquarters: Seattle, WA, US · Human Services · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Incipio
EIN 201943657 · Headquarters: Seattle, WA, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Independent Colleges of Washington
EIN 910614877 · Headquarters: SEATTLE, WA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Independent Order of Odd Fellows
EIN 237608557 · Headquarters: Seattle, WA, US · Mutual & Membership Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Independent Order of Odd Fellows
EIN 237611821 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Independent Schools Experiential Education Network
EIN 270825624 · Headquarters: SEATTLE, WA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Indigenous Athletics Advancement Council
EIN 921289203 · Headquarters: SEATTLE, WA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Indigenous Creatives Collective
EIN 861235460 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Indigenous Just Transition
EIN 994837385 · Headquarters: Seattle, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Indigenous Living
EIN 854038796 · Headquarters: Seattle, WA, US · Mental Health & Crisis Intervention · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Indigenous Showcase
EIN 824677160 · Headquarters: Seattle, WA, US · Arts, Culture & Humanities · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Indigenous Voices
EIN 454938653 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Indochina Chinese Elderly Association
EIN 911192103 · Headquarters: SEATTLE, WA, USA · Human Services · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ
- Indochina Chinese Refugee of Wa
EIN 911094800 · Headquarters: SEATTLE, WA, USA · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ
- Indonesia Calls Inc
EIN 237442826 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Industrial Workers of the World
EIN 452855189 · Headquarters: Seattle, WA, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Industrial Workers of the World
EIN 821099738 · Headquarters: Seattle, WA, US · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Infinity Box Theatre Project
EIN 911032654 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Inframe Academy
EIN 332196859 · Headquarters: SEATTLE, WA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ingersoll Gender Center
EIN 911262502 · Headquarters: Seattle, WA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Ingraham Athletic Booster Club
EIN 821599207 · Headquarters: Seattle, WA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Ingraham High School Parent-teacher Student Association
EIN 911223129 · Headquarters: Seattle, WA, US · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Ingraham Water Polo Club
EIN 842124467 · Headquarters: Seattle, WA, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Initiative for Diversity Governing Council
EIN 263378690 · Headquarters: Seattle, WA, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Initiative for Responsible Mining Assurance
EIN 841973536 · Headquarters: SEATTLE, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Inner-city Developmental Education in Action
EIN 911540818 · Headquarters: Seattle, WA, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Innis Arden Activity Committee
EIN 911017861 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Innovate Washington
EIN 943242281 · Headquarters: SEATTLE, WA, USA · Science & Technology · Latest available filing year: 2011 · Primary form: IRS Form 990
- Innovation Schools
EIN 473156745 · Headquarters: SEATTLE, WA, USA · Education · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ
- Innovations for Scaling Impact (Iscale)
EIN 251904171 · Headquarters: SEATTLE, WA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2013 · Primary form: IRS Form 990
- Inspirational Workshops
EIN 824494610 · Headquarters: SEATTLE, WA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Inspire Family Institute
EIN 873281367 · Headquarters: Seattle, WA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Inspired Child Community
EIN 920468012 · Headquarters: Seattle, WA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Inspired Life Therapy
EIN 832673448 · Headquarters: Seattle, WA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Inspiring Special Kids
EIN 272848477 · Headquarters: Seattle, WA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Institute for Consumer Responsibility
EIN 911443186 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Institute for Educational Inquiry
EIN 943129409 · Headquarters: Seattle, WA, US · Youth Development · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Institute for Natural Medicine
EIN 020464611 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Institute For Progressive Sustainable Development
EIN 862059693 · Headquarters: SEATTLE, WA, US · Human Services · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Institute for Public Service Training
EIN 912027998 · Headquarters: Seattle, WA, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- Institute For Research of Chats
EIN 831602344 · Headquarters: Seattle, WA, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Institute for Systemic Learning the Corporation
EIN 911659644 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Institute for Systems Biology
EIN 912003593 · Headquarters: Seattle, WA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990
- Institute of Applied Physiology and Medicine
EIN 910875212 · Headquarters: Seattle, WA, US · Medical Research · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Institute of Industrial Engineers Inc
EIN 916185673 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Institute of Neurotoxicology and Neurological Disorders
EIN 911721338 · Headquarters: SEATTLE, WA, US · Medical Research · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Interaction Transition
EIN 510175651 · Headquarters: SEATTLE, WA, USA · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990
- Interbay Golf Club of Wa
EIN 991270894 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Intercommunity Peace and Justice Center
EIN 943083964 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Interconnection
EIN 931262843 · Headquarters: SEATTLE, WA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Interfaith Enlightenment Center
EIN 461659737 · Headquarters: Seattle, WA, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Interfaith Network of Washington State
EIN 911468650 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Interfraternity Council
EIN 911035548 · Headquarters: SEATTLE, WA, USA · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- Interim Community Development Association
EIN 911071277 · Headquarters: SEATTLE, WA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- Interim Housing Association
EIN 911630508 · Headquarters: SEATTLE, WA, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990
- Interior Design Coalition of Washington State
EIN 510444452 · Headquarters: Seattle, WA, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Interlake Child Care And Learning Center
EIN 911186874 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Interlochen Rowing Club
EIN 911768187 · Headquarters: Seattle, WA, US · Recreation & Sports · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Intermec Foundation
EIN 954453230 · Headquarters: SEATTLE, WA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2014 · Primary form: IRS Form 990-PF
- International Academy of Adhesive Dentistry
EIN 334571876 · Headquarters: Seattle, WA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- International Alliance Theatrical Stage Employees & Moving Picture
EIN 936050022 · Headquarters: Seattle, WA, US · Employment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- International Alliance Theatrical Stage Employees & Moving Picture- Local No 793
EIN 911885291 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- International Alliance Theatrical Wardrobe Union
EIN 916054462 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- International Assoc of Machinists & Aerospace
EIN 910267922 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- International Assoc of Machinists & Aerospace
EIN 910522760 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- International Association for Near -Death Studies Inc
EIN 943035299 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- International Association of Administrative Professionals
EIN 916057939 · Headquarters: Seattle, WA, US · Community Improvement & Capacity Building · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- International Association of Fire
EIN 916060501 · Headquarters: Seattle, WA, USA · Employment · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ
- International Association of Fire Fighters Local 27
EIN 910635137 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- International Association of Hospitality Accountan
EIN 911119590 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- International Association of Human- Animal Interaction Organizations
EIN 911568655 · Headquarters: SEATTLE, WA, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- International Association of Lions Clubs
EIN 916037208 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- International Association of Lions Clubs
EIN 916054299 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- International Association of Lions Clubs
EIN 916076994 · Headquarters: seattle, WA, US · Community Improvement & Capacity Building · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- International Association of Machinists & Aerospace Workers
EIN 910164652 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- International Association of Machinists & Aerospace Workers
EIN 910267923 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- International Association of Machinists & Aerospace Workers
EIN 910267927 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- International Association of Machinists & Aerospace Workers
EIN 912086120 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- International Association of Machinists & Aerospace Workers
EIN 912169712 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- International Association of Machinists & Aerospace Workers
EIN 916031753 · Headquarters: Seattle, WA, US · Employment · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- International Association of Machinists & Aerospace Workers
EIN 916033401 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- International Association of Machinists & Aerospace Workers
EIN 916055783 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- International Association of Machinists and Aerospace Workers
EIN 831580530 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N