Data / Nonprofits / Washington / Mercer Island
Nonprofits in Mercer Island, WA: 239 registered with the IRS
239 nonprofits are registered with the IRS in Mercer Island, WA, 211 of them 501(c)(3) charities; the 97 that report revenue took in $234.8 million. The largest by revenue: Day 1 Academies ($122 million), Samuel and Althea Stroum Jewish Community Center of Greater Seattl ($34 million), French American School of Puget Sound ($23.7 million). Most common causes: education (38), philanthropy, voluntarism and grantmaking foundations (33), recreation and sports (22).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Day 1 Academies | Education | 501(c)(3) | 2022 | $122 million | $125.5 million | 2024-12 |
| Samuel and Althea Stroum Jewish Community Center of Greater Seattl | Human services | 501(c)(3) | 2014 | $34 million | $46.8 million | 2025-08 |
| French American School of Puget Sound | Education | 501(c)(3) | 1996 | $23.7 million | $42.3 million | 2025-06 |
| Pacific Northwest Ironworkers & Employers Apprenticeship | Education | 501(c)(3) | 2022 | $8.4 million | $9.9 million | 2025-06 |
| Mercer Island Country Club | Recreation and sports | 501(c)(7) | 1983 | $4.8 million | $9 million | 2024-12 |
| Northwest Yeshiva High School | 501(c)(3) | 1979 | $3.8 million | $14.1 million | 2025-06 | |
| Country Village Day School Inc | 501(c)(3) | 1994 | $3.4 million | $4.3 million | 2025-08 | |
| Mercer Island Beach Club | 501(c)(7) | 1955 | $3.2 million | $7.1 million | 2024-12 | |
| Best Christian Workplaces Institute | Religion-related | 501(c)(3) | 2013 | $2.7 million | $1.4 million | 2025-06 |
| The Friendship Circle of Washington | Education | 501(c)(3) | 2010 | $1.9 million | $5.1 million | 2024-12 |
| Mercerwood Shore Club | 501(c)(7) | 1957 | $1.8 million | $4.9 million | 2024-12 | |
| Washington State Council of County & City Emps Health & Welfare Trust | 501(c)(9) | 1977 | $1.7 million | $1.1 million | 2025-04 | |
| Hwazan Buddhist Foundation | Religion-related | 501(c)(3) | 2003 | $1.5 million | $2.7 million | 2024-12 |
| Yemen Relief and Reconstruction Foundation | International, foreign affairs and national security | 501(c)(3) | 2019 | $1.3 million | $1 million | 2024-12 |
| Mercer Island Schools Foundation | 501(c)(3) | 1981 | $1.2 million | $904,609 | 2025-08 | |
| Privett Academy | Education | 501(c)(3) | 2001 | $1.1 million | $216,370 | 2026-06 |
| Northwest & Intermountain Power Producers Coalition | Community improvement and capacity building | 501(c)(6) | 2005 | $1 million | $229,225 | 2025-12 |
| Northwest Parkinsons Foundation | Health care | 501(c)(3) | 1998 | $1 million | $1 million | 2025-09 |
| Mercer Island Youth Soccer Club | 501(c)(3) | 1992 | $922,101 | $272,221 | 2025-03 | |
| Youth Theater Northwest | Arts, culture and humanities | 501(c)(3) | 1984 | $832,664 | $331,901 | 2025-06 |
| Island Synagogue | 501(c)(3) | 1994 | $826,120 | $3.8 million | 2025-08 | |
| Mercer Island Youth and Family Services Foundation | Human services | 501(c)(3) | 1990 | $822,616 | $2.1 million | 2025-06 |
| Human Solidarity Project Inc | Community improvement and capacity building | 501(c)(3) | 2022 | $814,263 | $50,611 | 2024-12 |
| Japan America Society of the State | International, foreign affairs and national security | 501(c)(3) | 1983 | $594,607 | $437,332 | 2025-06 |
| Washington State Jewish Historical Society | 501(c)(3) | 1980 | $578,050 | $1.3 million | 2024-12 | |
| Mercer Island Lacrosse Club | Recreation and sports | 501(c)(3) | 2003 | $499,595 | $125,060 | 2025-09 |
| Hebrew Free Loan Association | Human services | 501(c)(3) | 2011 | $488,913 | $1.1 million | 2025-12 |
| Celebrity Waiters Luncheon | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2012 | $444,385 | $142,437 | 2025-08 |
| Sunnybeam School of Mercer Island | Education | 501(c)(3) | 1989 | $439,158 | $435,768 | 2025-06 |
| Stationary Engineers Local 286 Journeyman Upgrading & Apprentice | 501(c)(5) | 1977 | $413,525 | $383,915 | 2025-07 | |
| Herzl Memorial Park Cemetery Association | 501(c)(13) | 1980 | $394,631 | $1.5 million | 2024-12 | |
| Fam177a1 Research Fund | Medical research | 501(c)(3) | 2022 | $333,831 | $327,249 | 2025-12 |
| Jsim Hope Foundation | International, foreign affairs and national security | 501(c)(3) | 2018 | $333,587 | $393,481 | 2025-12 |
| Reflective Earth Foundation | Environment | 501(c)(3) | 2019 | $329,766 | $204,172 | 2025-12 |
| Pitch Your Peers Inc | Human services | 501(c)(3) | 2020 | $316,875 | $19,489 | 2025-12 |
| Washington State Korean-American Education and Culture Foundation | Arts, culture and humanities | 501(c)(3) | 2018 | $287,120 | $1.2 million | 2024-07 |
| Caz Northwest | Recreation and sports | 501(c)(3) | 2025 | $282,427 | $151,172 | 2025-09 |
| Congo Peace | Diseases, disorders and medical disciplines | 501(c)(3) | 2022 | $278,944 | $96,533 | 2025-12 |
| Emmanuel Day School | Education | 501(c)(3) | 2008 | $253,202 | $150,518 | 2025-06 |
| Seavuria | Education | 501(c)(3) | 2012 | $248,622 | $222,902 | 2025-12 |
| Chinese Economists Society Inc | 501(c)(3) | 1988 | $248,168 | $1.9 million | 2025-10 | |
| Washington State Ski & Snowboard Museum | Arts, culture and humanities | 501(c)(3) | 2014 | $243,694 | $547,189 | 2025-12 |
| Island Choral Experience | Arts, culture and humanities | 501(c)(3) | 2001 | $221,935 | $7,598 | 2025-06 |
| Oranjeschool | Education | 501(c)(3) | 2006 | $198,940 | $133,870 | 2025-06 |
| Mercer Island High School Football Booster Club | Education | 501(c)(3) | 2009 | $197,836 | $145,342 | 2024-12 |
| Gospel Association of India Inc | Religion-related | 501(c)(3) | 1980 | $192,130 | $43,215 | 2023-08 |
| Mercer Island Farmers Market | Food, agriculture and nutrition | 501(c)(3) | 2012 | $177,592 | $191,653 | 2026-04 |
| Pixie Hill Preschool | 501(c)(3) | 1978 | $166,522 | $110,376 | 2025-06 | |
| Mercer Island Equestrian Club | Recreation and sports | 501(c)(7) | 2006 | $163,861 | $79,845 | 2025-12 |
| Olympic Cascade Aquatics Foundation | Recreation and sports | 501(c)(3) | 2010 | $155,997 | $166,301 | 2025-08 |
| Mercer Island Womens Lacrosse Club | Recreation and sports | 501(c)(3) | 2023 | $155,040 | $183,212 | 2025-12 |
| Epoch Public Media Seattle | Education | 501(c)(3) | 2013 | $153,494 | $395,153 | 2025-12 |
| Mercer Island Chamber of Commerce | 501(c)(6) | 1948 | $152,844 | $105,007 | 2025-12 | |
| International Oak Society | Environment | 501(c)(3) | 1997 | $151,663 | $269,552 | 2024-12 |
| Mercer Island Boys Basketball Booster Club | Recreation and sports | 501(c)(3) | 2003 | $147,037 | $70,817 | 2025-05 |
| Mercer Island Education Association | 501(c)(5) | 1993 | $145,765 | $362,306 | 2025-08 | |
| Mercer Island Schools Band Boosters | Education | 501(c)(3) | 2011 | $143,956 | $310,562 | 2025-06 |
| Eh Angle Society NW Component | Community improvement and capacity building | 501(c)(6) | 2020 | $136,285 | $159,071 | 2025-12 |
| Essex Community Outreach Corp | Education | 501(c)(3) | 1999 | $132,775 | $168,216 | 2024-12 |
| Project Management Institute | 501(c)(6) | 2001 | $122,579 | $233,668 | 2025-12 | |
| Mercer Island Rowing Club | Youth development | 501(c)(3) | 2024 | $118,085 | $126,314 | 2026-01 |
| Beststart Washington | Medical research | 501(c)(3) | 2001 | $113,917 | $65,465 | 2024-12 |
| National Kitchen & Bath Assoc | 501(c)(6) | 1994 | $113,071 | $100,622 | 2025-12 | |
| Falun Dafa Association of Washington | Religion-related | 501(c)(3) | 2009 | $93,568 | $106,046 | 2024-12 |
| Mercer Island Orchestra Boosters | Education | 501(c)(3) | 2014 | $89,169 | $123,175 | 2025-12 |
| National Association of Women in Construction | 501(c)(6) | 1961 | $82,761 | $53,990 | 2025-09 | |
| Spring Family Trail Fund | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $81,978 | $464,609 | 2025-11 |
| Northwood Elementary Parent Teacher Association | Education | 501(c)(3) | 2016 | $81,854 | $140,013 | 2025-06 |
| Mercer Island Community Fund | Community improvement and capacity building | 501(c)(3) | 1986 | $80,928 | $451,223 | 2025-12 |
| Mercer Island Baseball Booster Club | Education | 501(c)(3) | 2017 | $79,186 | $63,469 | 2025-08 |
| Mercer Island Girls Basketball Booster Club | Youth development | 501(c)(3) | 2005 | $78,546 | $63,279 | 2025-05 |
| Veterans of Foreign Wars of the United States Dept of Washington | 501(c)(19) | 1981 | $75,888 | $121,018 | 2025-06 | |
| Mercer Island Play Center Parents | 501(c)(3) | 1992 | $75,314 | $59,608 | 2025-06 | |
| Community Health Africa - A Poverty Solution Chaps Inc | International, foreign affairs and national security | 501(c)(3) | 2008 | $75,200 | $49,629 | 2025-12 |
| Friars Golf Foundation | Recreation and sports | 501(c)(3) | 2019 | $74,883 | $107,707 | 2025-12 |
| Mudville Youth Baseball Club | Recreation and sports | 501(c)(3) | 2002 | $70,140 | $81,413 | 2025-12 |
| Foundation of the Rotary Club of Mercer Island | Human services | 501(c)(3) | 2011 | $61,262 | $211,354 | 2026-06 |
| Mercer Island Visual Arts League | 501(c)(3) | 1970 | $60,967 | $61,510 | 2025-12 | |
| Pi Kappa Alpha Uw Housing Association | 501(c)(7) | 1997 | $60,000 | $586,881 | 2025-06 | |
| National League of Young Men Inc | 501(c)(3) | 2010 | $56,287 | $80,169 | 2025-06 | |
| Washington Fly Fishing Club | Recreation and sports | 501(c)(7) | 2014 | $55,317 | $89,463 | 2025-12 |
| Ghosh Innovation Lab | Public and societal benefit | 501(c)(3) | 2024 | $55,271 | $22,731 | 2025-12 |
| The Amandla Project | International, foreign affairs and national security | 501(c)(3) | 2019 | $43,782 | $8,171 | 2024-12 |
| Free & Accepted Masons of Washington | Mutual and membership benefit | 501(c)(10) | 1941 | $38,778 | $1.4 million | 2025-12 |
| Stanley Ann Dunham Scholarship Fund | Education | 501(c)(3) | 2011 | $33,990 | $389,251 | 2024-12 |
| Rotary Club of Mercer Island | 501(c)(4) | 2011 | $31,255 | $102,605 | 2026-06 | |
| Mercer Island Preschool Association | Human services | 501(c)(3) | 1978 | $29,154 | $74,463 | 2025-06 |
| Northwest Sherpa Association | Arts, culture and humanities | 501(c)(3) | 2008 | $27,476 | $498,758 | 2025-12 |
| Kyras Hope Foundation | Human services | 501(c)(3) | 2025 | $23,865 | $18,447 | 2025-12 |
| Eastside Youth Soccer Association | Recreation and sports | 501(c)(3) | 1995 | $23,044 | $137,399 | 2025-05 |
| Samir and Sonal Pareek Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $15,000 | $35,819 | 2025-12 |
| Seattle Zen Dojo | Arts, culture and humanities | 501(c)(3) | 2023 | $8,400 | $60,372 | 2025-12 |
| Action for Animals | Animal-related | 501(c)(3) | 2007 | $3,699 | $23,100 | 2025-08 |
| Kiwanis International Inc | 501(c)(4) | 1940 | $2,970 | $38,592 | 2025-09 | |
| Bellevue Kiwanis Foundation | Education | 501(c)(3) | 1995 | $2,446 | $20,874 | 2025-09 |
| Coordinating Council for Refugees CCFR | Arts, culture and humanities | 501(c)(3) | 2022 | $73 | $35,511 | 2025-12 |
| Jingle Cross Rock Inc | Health care | 501(c)(3) | 2014 | $28 | $25,288 | 2024-12 |
| Africa Behavioral Science Network | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Alpine Advocates Community | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Annam Charitable Inc | Education | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Biblical Blueprint Institute | Religion-related | 501(c)(3) | 2003 | |||
| Chabad of Mercer Island | Religion-related | 501(c)(3) | 2017 | |||
| Childrens Book Project From Mercer Island | 501(c)(3) | 2024 | $0 | $0 | 2025-12 | |
| Climate Caravan | Environment | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| David & Lisa Holden Foundation | 501(c)(3) | 1990 | $985 | 2025-12 | ||
| Dink On Mercer Island | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| East Seattle Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $7 million | 2025-12 | |
| Encounter Eastside Church | Religion-related | 501(c)(3) | 2014 | |||
| Excel at Sports Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2011 | $1.2 million | 2025-12 | |
| Facing Forward | Public and societal benefit | 501(c)(3) | 2024 | |||
| Find Ventures Co | Community improvement and capacity building | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Fine Arts Advisory Committee | Arts, culture and humanities | 501(c)(3) | 2006 | $0 | $0 | 2025-06 |
| First Night Project | Health care | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Friends of Luther Burbank Park | Recreation and sports | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Friends of Mercer Island Scout Troop 624 | Youth development | 501(c)(3) | 2026 | |||
| Friends of the Mercer Island Library | Education | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Frontier Cascadia | Education | 501(c)(3) | 2026 | |||
| Galiotto Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $225,585 | 2025-12 | |
| Gedvila Family Fund | Education | 501(c)(3) | 2023 | $1,028 | 2024-12 | |
| Gospel Seeder International Association | Religion-related | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Gue Seattle | Environment | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Hangarhive | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Harkovy-Mack Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $290,585 | 2025-12 | |
| Hazel Fund | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2015 | $332,772 | 2024-12 | |
| Health and Wellness Foundation | Health care | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Healthcare Information and Management Systems Society | 501(c)(6) | $0 | $0 | 2025-06 | ||
| Hendricks-Felton Foundation | 501(c)(3) | 1991 | $245,746 | 2025-12 | ||
| Herzl-Ner Tamid Conservative Congregation | 501(c)(3) | 1980 | ||||
| Herzl-Ner Tamid Endowment Foundation | Religion-related | 501(c)(3) | 2000 | |||
| Hes Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $2,849 | 2025-12 | |
| Higgins Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $2 million | 2025-12 | |
| Hilawe Foundation | Human services | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Hill Family Foundation | 501(c)(3) | 1992 | $5.3 million | 2024-12 | ||
| His Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $4.2 million | 2025-09 | |
| Homebridge Organization | Housing and shelter | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Hope Forever | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2026 | |||
| Horizon Center for Chinese Culture and Heritage | Arts, culture and humanities | 501(c)(3) | 2024 | $18,466 | 2025-08 | |
| Human Empowerment Outreach Corporation | Human services | 501(c)(3) | 2018 | $0 | $0 | 2024-12 |
| Ichigo Ichie Foundation | Arts, culture and humanities | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Imaging4change Inc | Human services | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Infinite Potential Institute | Food, agriculture and nutrition | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Institute Advancing Womens Health I NC | Diseases, disorders and medical disciplines | 501(c)(3) | 2026 | |||
| Institute of Human Values | Arts, culture and humanities | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| International Esodata Study Group | Health care | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Islander Robotics Academy | Youth development | 501(c)(3) | 2024 | $0 | $0 | 2026-06 |
| Islander Robotics Boosters | Education | 501(c)(3) | 2023 | |||
| Isola Charities | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $1,601 | 2024-12 | |
| Ite - Washington State Section | Education | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Japanese Garden Society of Seattle Washington | 501(c)(3) | 1985 | $0 | $0 | 2025-12 | |
| Jefferson Park Lawn Bowling Club Inc | Recreation and sports | 501(c)(3) | 1999 | $0 | $0 | 2024-11 |
| John Leonard Adams Foundation | Human services | 501(c)(3) | 2013 | $0 | $0 | 2024-12 |
| Kappa Alpha Theta Fraternity | 501(c)(7) | 1940 | $0 | $0 | 2026-06 | |
| Kids Up 365 | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Kiwanis International Inc | 501(c)(4) | 1940 | $0 | $0 | 2025-09 | |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-05 | |
| Laura Ellen & Robert Muglia Family Foundation 340-74C18 | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $92.9 million | 2026-01 | |
| Lee Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2007 | $452,226 | 2025-12 | |
| Light and Shine Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2020 | $414,676 | 2025-09 | |
| Little Mercies | Human services | 501(c)(3) | 2022 | $0 | $0 | 2025-10 |
| Love Her Period Foundation | Human services | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Lovsted Family Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1994 | $5.5 million | 2025-12 | |
| Macrae Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $2 million | 2025-12 | |
| Marcia Paulsell Zech Foundation | 501(c)(3) | 1984 | $229,926 | 2025-09 | ||
| Marine Conservation Alliance | Environment | 501(c)(6) | 2003 | $0 | $0 | 2025-12 |
| Meilan Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2020 | $1.5 million | 2025-12 | |
| Mentorlink | Education | 501(c)(3) | 2026 | |||
| Mercer Island Boys Soccer Booster Club NFP | Recreation and sports | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Mercer Island Center for the Arts | Arts, culture and humanities | 501(c)(3) | 2014 | $0 | $2.1 million | 2023-12 |
| Mercer Island Chinese Association | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2026-03 |
| Mercer Island Girls Soccer Booster Club NFP | Recreation and sports | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Mercer Island High School Cheer Boo Ster Club | Education | 501(c)(3) | 2026 | $0 | $0 | 2026-06 |
| Mercer Island Historical Society | 501(c)(3) | 1980 | $0 | $0 | 2025-12 | |
| Mercer Island Launch Educational Advocacy Project | Education | 501(c)(3) | 2018 | $203,990 | 2024-12 | |
| Mercer Island Mountain Biking Advocates | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Mercer Island Police Association | Employment | 501(c)(5) | 2009 | $0 | $0 | 2025-12 |
| Mercer Island Schools Choir Boosters | Education | 501(c)(3) | 2023 | $0 | $0 | 2026-06 |
| Mercer Island Sister City Association | International, foreign affairs and national security | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Mercer Island Track Club | Recreation and sports | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| Mercer Island Water Polo Club | Youth development | 501(c)(3) | 1996 | $0 | $0 | 2025-05 |
| Mercer Island Womens Club | Mutual and membership benefit | 501(c)(7) | 2014 | $0 | $0 | 2026-05 |
| Mercer Legacy | Environment | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Mi Robotics Booster Club | Education | 501(c)(3) | 2020 | $0 | $0 | 2025-06 |
| Miggs Booster Club | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Mihs Boys Swive Booster Club | Recreation and sports | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Mihs Volleyball Booster Club | Education | 501(c)(3) | 2014 | $0 | $0 | 2026-01 |
| Monkey Square | Education | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Move United | 501(c)(3) | 1975 | $0 | $0 | 2025-12 | |
| My Chess World | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| National Charity League - Evergreen Chapter | Human services | 501(c)(3) | 1998 | $0 | $0 | 2025-05 |
| National Charity League - Lake Washington Chapter | Youth development | 501(c)(3) | 2007 | $0 | $0 | 2026-05 |
| National Federation of Music Clubs | Arts, culture and humanities | 501(c)(3) | 2002 | $0 | $0 | 2026-08 |
| Neighbors in Motion | Community improvement and capacity building | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Newman Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $11.1 million | 2024-12 | |
| North Pacific Conference | 501(c)(3) | 1975 | 2010-12 | |||
| North Star Council for Alcohol and Drug Education | Mental health and crisis intervention | 501(c)(3) | 1997 | $307,241 | 2025-12 | |
| Onchub Alliance | Health care | 501(c)(3) | 2024 | |||
| Parent Booster USA Inc | Education | 501(c)(3) | 2005 | $0 | $0 | 2025-06 |
| Parent Booster USA Inc | Education | 501(c)(3) | 2005 | $0 | $0 | 2025-06 |
| Paul Bao-Ho & Mei-Yea Liao Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2012 | $1.3 million | 2025-11 | |
| Peggy and Brian Sassi Charitable Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $1.2 million | 2025-12 | |
| Pipe Organ Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $0 | $0 | 2024-12 |
| Puget Sound Research Forum | 501(c)(6) | 1982 | $0 | $0 | 2025-08 | |
| Pure Land Buddhism Seattle Nonprofit Foundation | Religion-related | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Raman Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $2 million | 2024-12 | |
| Redeemer Lutheran Church | 501(c)(3) | 1941 | ||||
| Rhythm Unity | Arts, culture and humanities | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Rokka Ski School | 501(c)(3) | 1983 | $0 | $0 | 2025-06 | |
| Russian Chamber Music Foundation of Seattle | Arts, culture and humanities | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Salang Foundation | International, foreign affairs and national security | 501(c)(3) | 2013 | $439,863 | 2025-12 | |
| Schoenfeld-Gardner Foundation | 501(c)(3) | 1959 | $3.2 million | 2025-12 | ||
| Schroeder Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2015 | $892,268 | 2025-12 | |
| Schulze Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $1.3 million | 2025-04 | |
| Seattle Chinese Broadcasting Association | Arts, culture and humanities | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Seattle Community Baseball Academy | Recreation and sports | 501(c)(3) | 2024 | |||
| Shep-Rock Inc | 501(c)(3) | 1983 | $1.5 million | 2024-12 | ||
| Shirley & David Allen Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $1.1 million | 2025-12 | |
| Sogge Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $24,720 | 2024-12 | |
| Spiritual Assembly of the Bahais of Mercer Island | 501(c)(3) | 1995 | ||||
| Spitzer Foundation | 501(c)(3) | 1982 | $1.8 million | 2024-12 | ||
| St Monicas Parish | 501(c)(3) | 1946 | ||||
| Summit Seekers A Non Profit Corporation | Youth development | 501(c)(3) | 2001 | $16,695 | 2025-06 | |
| Sunset Covenant Church Portland Or | 501(c)(3) | 1975 | ||||
| Table Covenant Church | 501(c)(3) | 1975 | ||||
| Team Taiwan Association | Arts, culture and humanities | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| The Karl Foundation | 501(c)(3) | 1988 | $309,264 | 2025-10 | ||
| The Larry & Sherry Benaroya Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $31,045 | 2024-12 | |
| The Sanford Foundation | 501(c)(3) | 1983 | $24,825 | 2025-08 | ||
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Traditional Reform Synagogue of Greater Seattle Temple Bnai Torah | 501(c)(3) | 1969 | ||||
| Underhill House | 501(c)(3) | 1940 | ||||
| Vishal Himalaya Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Vision Mercer Island | Public and societal benefit | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Visually Inspired Foundation | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Wallace - Elizabeth and Isabella Wong Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $432,145 | 2024-12 | |
| Welfund Inc | 501(c)(3) | 1964 | $970,210 | 2025-12 | ||
| Wen Lacross Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $831,899 | 2024-12 | |
| Wenaweser Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2007 | $398,931 | 2026-04 | |
| Yonsei Foundation USA | Education | 501(c)(3) | 2026 | |||
| Yonsei University Alumni Associatio N of America | Education | 501(c)(3) | 2026 |
By cause in Mercer Island, WA
- Education 38
- Philanthropy, voluntarism and grantmaking foundations 33
- Recreation and sports 22
- Arts, culture and humanities 20
- Human services 14
- Religion-related 10
- Youth development 7
- International, foreign affairs and national security 7
- Environment 6
- Community improvement and capacity building 6
- Health care 6
- Public and societal benefit 3
Nonprofits in every city of the state
Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.