Data / Nonprofits / Oregon / Lake Oswego
Nonprofits in Lake Oswego, OR: 449 registered with the IRS
449 nonprofits are registered with the IRS in Lake Oswego, OR, 364 of them 501(c)(3) charities; the 171 that report revenue took in $177.9 million. The largest by revenue: Marys Woods at Marylhurst Inc ($54.6 million), Northwest Firefighters Relief Assoc Insurance Trust ($21.5 million), Oswego Lake Country Club ($9.3 million). Most common causes: education (79), philanthropy, voluntarism and grantmaking foundations (40), recreation and sports (38).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Marys Woods at Marylhurst Inc | Housing and shelter | 501(c)(3) | 1998 | $54.6 million | $334 million | 2025-06 |
| Northwest Firefighters Relief Assoc Insurance Trust | 501(c)(9) | 1990 | $21.5 million | $14.3 million | 2025-06 | |
| Oswego Lake Country Club | 501(c)(7) | 1937 | $9.3 million | $18.5 million | 2025-09 | |
| Gakko Hoojin Hokkaido International School | Education | 501(c)(3) | 1997 | $5.6 million | $53.2 million | 2025-07 |
| Park Academy | Education | 501(c)(3) | 2006 | $4.3 million | $13.7 million | 2025-06 |
| The One Unmah Foundation in Memory of Nabil and Mustafa Rahman | Education | 501(c)(3) | 2001 | $4 million | $6 million | 2024-12 |
| Friendzy Inc | Health care | 501(c)(3) | 2015 | $3.9 million | $2 million | 2024-12 |
| Organization for Educational Technology and Curriculum | Science and technology | 501(c)(3) | 1995 | $3.8 million | $16.9 million | 2024-12 |
| Western Wood Products Association | 501(c)(6) | 1935 | $3.6 million | $2.4 million | 2025-12 | |
| Northwest Childrens Outreach | Human services | 501(c)(3) | 2002 | $3.4 million | $835,237 | 2024-12 |
| Lakewood Theatre Company | Arts, culture and humanities | 501(c)(3) | 1961 | $3.4 million | $6.9 million | 2025-06 |
| Home Builders Association of Metropolitan Portland | 501(c)(6) | 1945 | $3.3 million | $4 million | 2024-11 | |
| Lake Oswego Corporation | 501(c)(4) | 1980 | $3.3 million | $8 million | 2025-12 | |
| Pacific Northwest Defense Coalition | Community improvement and capacity building | 501(c)(6) | 2006 | $3.2 million | $957,372 | 2024-12 |
| Set Foundation Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2010 | $2.4 million | $255,101 | 2025-12 |
| Child Aid | International, foreign affairs and national security | 501(c)(3) | 1993 | $2.4 million | $1.8 million | 2024-12 |
| International Leadership Academy | Education | 501(c)(3) | 2013 | $2.4 million | $4.4 million | 2025-06 |
| Northwest Firefighters Relief Association Veba Trust | Mutual and membership benefit | 501(c)(9) | 2021 | $2.3 million | $8.9 million | 2025-06 |
| Academic Consortium for Integrative Medicine & Health Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $1.7 million | $1 million | 2025-06 |
| Lake Oswego Soccer Club | Recreation and sports | 501(c)(3) | 1999 | $1.6 million | $572,342 | 2026-01 |
| Maayan Hatorah Day School | Education | 501(c)(3) | 2011 | $1.5 million | $1.5 million | 2025-06 |
| Lake Oswego School Dist Foundation Inc | 501(c)(3) | 1987 | $1.4 million | $2.7 million | 2025-06 | |
| Oregon Medical Association | 501(c)(6) | 1940 | $1.3 million | $5.1 million | 2025-12 | |
| Riverdale School Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1993 | $1.2 million | $1 million | 2025-06 |
| Tualatin Valley Firefighters Union | 501(c)(5) | 1959 | $1.1 million | $1.4 million | 2025-12 | |
| Eastern Vascular Society Inc | 501(c)(6) | 1988 | $1.1 million | $1.5 million | 2025-12 | |
| Northwest Environmental Business Council | Environment | 501(c)(6) | 1999 | $1.1 million | $414,812 | 2025-12 |
| Oregon Business Academy | Youth development | 501(c)(3) | 2022 | $983,754 | $451,791 | 2025-12 |
| Northwest Grocery Association | 501(c)(6) | 1981 | $965,431 | $1.9 million | 2024-12 | |
| Area 1 Plumbers Joint Apprenticeship and Training | Employment | 501(c)(3) | 1989 | $948,207 | $2.2 million | 2024-12 |
| The Coordination Lab Inc | Community improvement and capacity building | 501(c)(3) | 2020 | $940,902 | $787,831 | 2024-12 |
| Lake Oswego Swim Club | 501(c)(3) | 1986 | $923,329 | $457,691 | 2024-12 | |
| Childrens Literacy Project | Education | 501(c)(3) | 2015 | $850,916 | $48,173 | 2025-12 |
| Northwest Small Hydroelectric Association | 501(c)(6) | 1982 | $790,001 | $1.1 million | 2026-02 | |
| Kidspire | Human services | 501(c)(3) | 1994 | $786,039 | $1.2 million | 2025-05 |
| Bethlehem Christian Pre School Inc | Education | 501(c)(3) | 2012 | $701,675 | $81,366 | 2025-06 |
| Mi Casa International | 501(c)(3) | 1993 | $690,656 | $215,782 | 2025-09 | |
| Oregon Recreation and Park Association Inc | 501(c)(3) | 1990 | $636,589 | $473,258 | 2025-12 | |
| Portlands Singing Christmas Tree Inc | 501(c)(3) | 1986 | $635,214 | $121,518 | 2024-12 | |
| Stumptown Stages | Arts, culture and humanities | 501(c)(3) | 2006 | $634,996 | $95,334 | 2024-12 |
| Access To Opportunity | Education | 501(c)(3) | 2016 | $572,621 | $470,801 | 2025-12 |
| Setpath | Youth development | 501(c)(3) | 2021 | $554,360 | $391,076 | 2025-12 |
| Hunger Fighters Oregon | Food, agriculture and nutrition | 501(c)(3) | 2017 | $551,409 | $261,330 | 2025-12 |
| Metro Portland Housing Industry Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $490,334 | $1.6 million | 2024-12 |
| Greater Lake Oswego Chamber of Commerce | 501(c)(6) | 1986 | $465,384 | $111,232 | 2025-09 | |
| Lake Oswego Rotary Foundation Inc | 501(c)(3) | 1989 | $457,295 | $319,975 | 2025-09 | |
| Lake Oswego Rowing Club Foundation | Community improvement and capacity building | 501(c)(3) | 1998 | $438,685 | $165,196 | 2025-12 |
| Haki Community Organization | International, foreign affairs and national security | 501(c)(3) | 2021 | $393,756 | $131,070 | 2023-12 |
| Oregon Chiropractic Association | Community improvement and capacity building | 501(c)(6) | 2013 | $381,928 | $97,353 | 2024-12 |
| Lake Oswego Youth Traveling Basketball Association Inc | 501(c)(4) | 1998 | $371,373 | $108,084 | 2025-08 | |
| Oregon Building Officials Assoc | 501(c)(6) | 1993 | $365,472 | $352,871 | 2025-06 | |
| Arts Council of Lake Oswego | Arts, culture and humanities | 501(c)(3) | 2000 | $355,585 | $348,256 | 2025-06 |
| Porsche Club of America Oregon Region | 501(c)(7) | 1972 | $332,559 | $287,788 | 2025-12 | |
| Red Sweater Project | Education | 501(c)(3) | 2013 | $328,099 | $222,249 | 2024-12 |
| Project Pooch | Crime and legal-related | 501(c)(3) | 1999 | $319,155 | $498,855 | 2025-12 |
| Northwest Kidney Council | Diseases, disorders and medical disciplines | 501(c)(6) | 2020 | $318,025 | $126,300 | 2025-12 |
| Global Assistance Inc | International, foreign affairs and national security | 501(c)(3) | 1992 | $297,627 | $3.1 million | 2025-12 |
| Oregon Beverage Association | 501(c)(6) | 1978 | $276,848 | $141,614 | 2024-12 | |
| Comic Book Legal Defense Fund Inc | Civil rights, social action and advocacy | 501(c)(3) | 1995 | $276,582 | $736,253 | 2024-12 |
| Lake Oswego High School Football Booster Club | Recreation and sports | 501(c)(3) | 2008 | $242,590 | $51,086 | 2025-06 |
| Oregon Medical Education Foundation | Education | 501(c)(3) | 1965 | $240,911 | $1.7 million | 2025-12 |
| International Society for Women Vascular Surgeons | Human services | 501(c)(3) | 2024 | $239,764 | $122,723 | 2025-12 |
| Oregon Remodelers Association | 501(c)(6) | 1977 | $234,337 | $63,831 | 2025-12 | |
| Pacer Baseball Inc | Recreation and sports | 501(c)(3) | 2005 | $232,298 | $18,233 | 2025-08 |
| Oregon School Food Service Association | Education | 501(c)(3) | 2006 | $218,751 | $157,875 | 2025-07 |
| Texas Society of Vascular and Endovascular Surgery | Medical research | 501(c)(6) | 2011 | $216,790 | $149,506 | 2025-12 |
| Oregon Firearm Safety Coalition | Human services | 501(c)(3) | 2021 | $216,300 | $338,675 | 2025-12 |
| Oswego Heritage Council Inc | Arts, culture and humanities | 501(c)(3) | 1995 | $214,439 | $973,977 | 2024-12 |
| Oswego Lake Watershed Council | Environment | 501(c)(3) | 2011 | $211,899 | $12,291 | 2025-12 |
| Oregon Academy of Ophthalmology | 501(c)(6) | 1977 | $204,768 | $181,738 | 2024-12 | |
| Pacer Club Inc | Education | 501(c)(3) | 1997 | $204,591 | $92,950 | 2025-06 |
| Friends of the Lake Oswego Public Library | 501(c)(3) | 1976 | $204,074 | $574,320 | 2025-06 | |
| Association of Vascular & Interventional Radiographers | 501(c)(6) | 1990 | $202,860 | $117,075 | 2025-12 | |
| Oregon State Society of Anesthesiologists Inc | 501(c)(6) | 1976 | $199,668 | $501,635 | 2024-12 | |
| Refit - Remodeling for Independence Together | Human services | 501(c)(3) | 1999 | $198,733 | $141,054 | 2025-12 |
| Pacer Pride Inc | Education | 501(c)(3) | 2008 | $197,663 | $16,489 | 2025-12 |
| Parent Booster USA Inc | Education | 501(c)(3) | 2005 | $194,275 | $71,060 | 2026-06 |
| Little League Baseball Inc | 501(c)(3) | 1967 | $183,209 | $89,417 | 2025-09 | |
| Healthy Habitat Org | Environment | 501(c)(3) | 2019 | $182,432 | $78,617 | 2024-09 |
| Oswego Baseball Club Inc | Recreation and sports | 501(c)(3) | 2001 | $181,428 | $60,632 | 2025-12 |
| Lake Oswego High School Parent Club | Education | 501(c)(3) | 2010 | $175,152 | $27,652 | 2025-06 |
| Washington Chapter of the Risk and Insurance Management Society | 501(c)(6) | 1973 | $169,491 | $223,105 | 2024-12 | |
| Oregon Association of Orthopaedists Inc | Community improvement and capacity building | 501(c)(6) | 2012 | $165,140 | $196,656 | 2024-12 |
| Critical Issues America Inc | Health care | 501(c)(3) | 2023 | $164,992 | $638,585 | 2025-12 |
| Indiana Association of Zeta Psi Inc | Education | 501(c)(7) | 2002 | $155,454 | $654,756 | 2026-05 |
| Down Syndrome Network Oregon | Diseases, disorders and medical disciplines | 501(c)(3) | 2005 | $144,857 | $172,210 | 2025-12 |
| Lake Oswego Meal Network Advisory Board | 501(c)(3) | 1982 | $142,601 | $540,974 | 2024-12 | |
| 501 Collective | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2021 | $142,023 | $22,528 | 2025-12 |
| Friends of Laker Baseball | Education | 501(c)(3) | 1994 | $136,211 | $24,491 | 2025-09 |
| Rotary International | 501(c)(4) | 1942 | $135,675 | $238,604 | 2025-06 | |
| One World Chorus | 501(c)(3) | 2009 | $133,104 | $16,529 | 2025-12 | |
| Oregon State Ambulance Association | 501(c)(6) | 1993 | $132,165 | $255,715 | 2024-12 | |
| Skylands Water Company | 501(c)(12) | 1964 | $131,930 | $350,892 | 2023-12 | |
| Tualatin Valley Firefighters Union Peer Support Network Inc | Mental health and crisis intervention | 501(c)(3) | 2025 | $131,239 | $126,525 | 2025-12 |
| Green Tree Swimming Pool Association | Recreation and sports | 501(c)(7) | 2020 | $128,883 | $124,570 | 2025-12 |
| Alabama Vascular Society Inc | Education | 501(c)(3) | 2002 | $126,760 | $16,560 | 2025-12 |
| Wind & Oar Boat School | Education | 501(c)(3) | 2012 | $126,033 | $102,811 | 2025-12 |
| Portland Shakespeare Project | Arts, culture and humanities | 501(c)(3) | 2010 | $119,309 | $80,749 | 2025-12 |
| Palisades Academy of Languages | Education | 501(c)(3) | 2022 | $118,420 | $103,973 | 2025-12 |
| Oregon Virtual Public Schools Alliance | Education | 501(c)(4) | 2009 | $113,655 | $50,930 | 2025-12 |
| Parent Booster USA Inc | Education | 501(c)(3) | 2005 | $109,809 | $79,405 | 2025-06 |
| Washington C L U B Charity Golf Classic | Youth development | 501(c)(3) | 2001 | $109,647 | $4,877 | 2024-12 |
| New York Society for Vascular Surgery | Diseases, disorders and medical disciplines | 501(c)(3) | 2014 | $107,303 | $21,065 | 2025-12 |
| Westridge Elementary School Parent- Teacher-Student Organization | Education | 501(c)(3) | 1993 | $106,089 | $51,097 | 2025-06 |
| Friends of the Rogerson Clematis Collection | Environment | 501(c)(3) | 2004 | $104,873 | $331,074 | 2025-12 |
| Lake Oswego Youth Football Inc | Recreation and sports | 501(c)(3) | 1998 | $104,226 | $53,770 | 2025-12 |
| Lake Oswego Chamber Foundation | Environment | 501(c)(3) | 2003 | $101,513 | $56,142 | 2025-09 |
| Waterafrica | International, foreign affairs and national security | 501(c)(3) | 2010 | $100,505 | $111,216 | 2025-09 |
| Lake Oswego Robotics | Education | 501(c)(3) | 2014 | $100,503 | $76,343 | 2025-06 |
| Somadigital | Religion-related | 501(c)(3) | 2024 | $96,966 | $8,839 | 2024-12 |
| Parent-Teacher Organization | 501(c)(3) | 1989 | $95,693 | $72,635 | 2025-07 | |
| Lake Oswego Youth Lacrosse | Recreation and sports | 501(c)(3) | 2017 | $95,442 | $130,498 | 2025-12 |
| Goodin Easement | Recreation and sports | 501(c)(7) | 2023 | $94,717 | $323,516 | 2025-12 |
| Lakeridge Youth Football | Recreation and sports | 501(c)(3) | 2000 | $94,443 | $33,624 | 2025-12 |
| Kids Chance of Oregon | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $93,404 | $187,872 | 2025-12 |
| Keisho Japanese School of Portland | Education | 501(c)(3) | 2024 | $91,195 | $44,098 | 2025-08 |
| Lake Oswego Learning Center | Education | 501(c)(3) | 2023 | $90,075 | $1,836 | 2024-06 |
| Oak Creek Elementary Pto | Education | 501(c)(3) | 2017 | $88,139 | $212,852 | 2025-06 |
| Come Rest Awhile | Human services | 501(c)(3) | 1997 | $84,812 | $61,058 | 2025-12 |
| Tualatin Lacrosse Club | Youth development | 501(c)(3) | 2012 | $84,417 | $93,404 | 2025-06 |
| Teen Aeronautics | Education | 501(c)(3) | 2025 | $84,100 | $156,004 | 2025-12 |
| FB4K Portland Inc | Recreation and sports | 501(c)(3) | 2018 | $81,792 | $375,211 | 2024-12 |
| Courageous Girls | Religion-related | 501(c)(3) | 2023 | $81,706 | $31,498 | 2025-06 |
| Beta Nu Chapter of Phi Beta Pi | 501(c)(3) | 1997 | $77,884 | $215,623 | 2025-06 | |
| Forest Hills Elementery School Pto Inc | Education | 501(c)(3) | 1996 | $77,031 | $116,935 | 2025-07 |
| Compassion for Haiti Inc | International, foreign affairs and national security | 501(c)(3) | 2015 | $76,561 | $41,842 | 2025-12 |
| Village On the Lake Marina Association | Recreation and sports | 501(c)(7) | 2021 | $74,712 | $175,788 | 2024-12 |
| River Grove Parent Teacher Organization | Education | 501(c)(3) | 2011 | $71,749 | $42,749 | 2025-06 |
| Pta Oregon Congress | 501(c)(3) | 1955 | $68,379 | $85,906 | 2025-06 | |
| Clackamas County Business Alliance | Community improvement and capacity building | 501(c)(6) | 2003 | $67,055 | $15,955 | 2025-12 |
| Lakeridge Junior High School Parent Club | Education | 501(c)(3) | 1995 | $66,715 | $58,426 | 2025-06 |
| Pamoja House Community Together | Human services | 501(c)(3) | 2008 | $65,140 | $28,104 | 2024-12 |
| Blue Heron Homeowners Association | 501(c)(7) | 1968 | $64,980 | $51,449 | 2025-10 | |
| Oswego Play School | Human services | 501(c)(3) | 1955 | $64,552 | $109,026 | 2025-05 |
| The Interior Design Society Inc | Community improvement and capacity building | 501(c)(6) | 2017 | $63,143 | $42,063 | 2025-12 |
| Lake Oswego High School Boys Basketball Booster Club | Education | 501(c)(3) | 2023 | $61,379 | $29,587 | 2025-12 |
| Lake Oswego Education Association | 501(c)(5) | 1994 | $58,427 | $72,265 | 2024-08 | |
| Project Barnabas Inc | Education | 501(c)(3) | 2014 | $55,920 | $31,751 | 2025-12 |
| Fraternal Order of Police | 501(c)(8) | 1952 | $54,820 | $81,363 | 2024-12 | |
| National Charity League Lake Oswego Chapter | Youth development | 501(c)(3) | 2003 | $52,376 | $108,259 | 2026-05 |
| Columbia Wound Care Consortium | Education | 501(c)(3) | 2013 | $52,334 | $18,557 | 2025-12 |
| Pacer Softball | Education | 501(c)(3) | 2018 | $52,244 | $27,428 | 2025-12 |
| Oswego Pioneer Cemetery Association Inc | 501(c)(13) | 1984 | $52,036 | $570,146 | 2025-12 | |
| Quilts for Empowerment | Employment | 501(c)(3) | 2017 | $51,377 | $38,057 | 2025-12 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $51,103 | $28,549 | 2025-09 | |
| Lake Oswego High School Lacrosse Club | Recreation and sports | 501(c)(3) | 2021 | $49,370 | $24,556 | 2025-12 |
| Oregon Newspapers Foundation Inc | Arts, culture and humanities | 501(c)(3) | 1978 | $47,830 | $536,443 | 2025-09 |
| Lake Oswego Equestrian Center | Recreation and sports | 501(c)(3) | 2018 | $45,580 | $48,642 | 2025-12 |
| Friends of the Hunt | Arts, culture and humanities | 501(c)(3) | 2023 | $41,435 | $21,004 | 2025-12 |
| Radikl | Science and technology | 501(c)(3) | 2024 | $41,007 | $88,706 | 2025-12 |
| Kauai Energy Institute | Medical research | 501(c)(3) | 2011 | $40,379 | $5.2 million | 2024-12 |
| Lake Oswego Middle School Parent Club | Education | 501(c)(3) | 2002 | $39,653 | $50,523 | 2025-06 |
| Friends of Lake Oswego Scouting | Youth development | 501(c)(3) | 2025 | $38,391 | $147,486 | 2025-12 |
| Endovascular Therapies Inc | Education | 501(c)(3) | 2023 | $35,885 | $67,480 | 2025-12 |
| Oregon Washington Community Association Managers | Community improvement and capacity building | 501(c)(6) | 2014 | $30,883 | $67,144 | 2025-12 |
| Oregon Poker Club | Recreation and sports | 501(c)(7) | 2019 | $26,200 | $14,036 | 2025-12 |
| Oregon Gut Club Inc | Health care | 501(c)(4) | 2008 | $25,344 | $102,031 | 2025-12 |
| Just Communities | Civil rights, social action and advocacy | 501(c)(4) | 2026 | $25,000 | $25,000 | 2024-12 |
| Thomas R Hatch Flying Foundation | Public and societal benefit | 501(c)(3) | 2024 | $18,110 | $13,684 | 2025-12 |
| Portland Metro Pipe Band | Arts, culture and humanities | 501(c)(3) | 2008 | $17,278 | $95,844 | 2025-12 |
| Afterlife Education Foundation | Education | 501(c)(4) | 2024 | $12,345 | $82,940 | 2026-06 |
| Oregon Airshow Charitable Foundation | Education | 501(c)(3) | 2019 | $12,112 | $212,397 | 2025-06 |
| Good Deeds | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $6,899 | $39,166 | 2025-12 |
| Oregon United Football Club Foundation | Recreation and sports | 501(c)(3) | 2019 | $4,717 | $49,075 | 2025-05 |
| Friends of Springbrook Park | Recreation and sports | 501(c)(3) | 2004 | $4,655 | $19,798 | 2025-12 |
| Dance for Parkinsons Oregon | Arts, culture and humanities | 501(c)(3) | 2016 | $4,134 | $3,284 | 2024-12 |
| Oregon Wine Brotherhood | 501(c)(5) | 2023 | $3,000 | $1 | 2025-12 | |
| Alumni of Beta Pi Chapter of Sigma Chi Fraternity | Education | 501(c)(7) | 2024 | $2,678 | $627,441 | 2025-06 |
| K Tzar Corp | Religion-related | 501(c)(3) | 2024 | $2,639 | $2,639 | 2025-12 |
| Recycle Beauty Company | Environment | 501(c)(3) | 2017 | $1,250 | $1,393 | 2024-12 |
| 3 Is 1 | Human services | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| 364us | Environment | 501(c)(3) | 2017 | $0 | $0 | 2024-12 |
| A A W Corporation | Human services | 501(c)(3) | 1993 | $0 | $0 | 2024-12 |
| Abc Merit Painting Apprenticeship Trust Fund | 501(c)(5) | 1984 | $0 | $0 | 2025-12 | |
| Acaville | Arts, culture and humanities | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Acts Missions Chapter of Portland in Oregon | Religion-related | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Alamofire Software Foundation | Science and technology | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Alder Point Club | 501(c)(7) | 2021 | $0 | $0 | 2025-12 | |
| American Association of University Women | Education | 501(c)(4) | 2010 | $0 | $0 | 2025-06 |
| American Federation of State County & Municipal Employees | 501(c)(5) | 1957 | $0 | $0 | 2025-12 | |
| American Society for Dental Ethics | 501(c)(6) | 1985 | $0 | $0 | 2025-12 | |
| Apoyo Escolar | Education | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Archinecture Npo | Housing and shelter | 501(c)(3) | 2022 | $0 | $67 | 2025-12 |
| Aria Alessia Research Foundation | Science and technology | 501(c)(3) | 2025 | |||
| Artemis Arts | Arts, culture and humanities | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Asian Art and Culture Foundation | Arts, culture and humanities | 501(c)(3) | 2022 | $1 | 2024-12 | |
| Athena Global Inc | Recreation and sports | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Autism Forum | Health care | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Ballet Through Borders | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2026 | |||
| Behind the Lines Medical Trust | Employment | 501(c)(3) | 2026 | |||
| Beit Haverim | Religion-related | 501(c)(3) | 2000 | |||
| Bieze Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $3.9 million | 2025-12 | |
| Big Kids Edu Films | Arts, culture and humanities | 501(c)(3) | 2026 | $0 | $0 | 2026-01 |
| Blue Heron Easement Association | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Breatheworks Fund Inc | Health care | 501(c)(3) | 2024 | |||
| Burtons Pride Inc | Animal-related | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| C O R N E A Inc | Medical research | 501(c)(3) | 1996 | $0 | $0 | 2023-12 |
| Carewheels Corporation | Employment | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Celebration Church | Religion-related | 501(c)(3) | 2004 | |||
| Chinese Heritage in Art Inc | Arts, culture and humanities | 501(c)(3) | 2011 | $0 | $0 | 2023-12 |
| Chinese Youth and Women Development Organization | Youth development | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Christian Growth Center Inc | Religion-related | 501(c)(3) | 1997 | |||
| Christian Woodruff Foundation | Education | 501(c)(3) | 2023 | $184,121 | 2025-12 | |
| Church of the Holy Sacrament | Religion-related | 501(c)(3) | 2021 | |||
| Clipped Wings United Air Lines Stewardess Alumnae & Flight Attend | 501(c)(7) | 1962 | ||||
| Columbia Seaplane Pilots Association | 501(c)(7) | 1986 | $0 | $0 | 2026-04 | |
| Common Grounds Oregon | Education | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Community Friends | International, foreign affairs and national security | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Crabby Beach Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $56.5 million | 2024-12 | |
| Crane Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $188,420 | 2024-12 | |
| Crossroads Consortium Inc | Religion-related | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Danicas Foundation Inc | 501(c)(3) | 1986 | $162,881 | 2025-12 | ||
| Delta Kappa Gamma Society | 501(c)(6) | 1965 | $0 | $0 | 2026-06 | |
| Directors Mortgage Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2023 | $524 | 2024-12 | |
| Divine Christian Church Inc | Religion-related | 501(c)(3) | 2001 | |||
| Don Pedro Jaramillo Shrine | Arts, culture and humanities | 501(c)(3) | 2019 | $0 | $0 | 2023-12 |
| Dr Quinton-Cox Scholarship Fund | Education | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Earl F and Linda S Bates Family Foundation | Education | 501(c)(3) | 2019 | $600 | 2025-12 | |
| Earle C May Kruse Way Rotary Foundation Inc | Education | 501(c)(3) | 1996 | $0 | $0 | 2024-06 |
| Electrical Signmaker Training Trust | Education | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Embroiderers Guild of America Inc | 501(c)(3) | 1976 | ||||
| Emile Spaulding Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2017 | $2.4 million | 2024-12 | |
| Fairbridge Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2015 | $12.2 million | 2025-12 | |
| Festa Italiana Association Inc | Arts, culture and humanities | 501(c)(3) | 1999 | $0 | $0 | 2025-12 |
| Firefly Foundation | Education | 501(c)(3) | 2024 | |||
| Floryn Wellness | Health care | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Fool House | Arts, culture and humanities | 501(c)(3) | 2022 | $0 | $0 | 2026-03 |
| For Pugs Sake Rescue | Animal-related | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Forest Hill Tutors Corp | Education | 501(c)(3) | 2025 | |||
| Fosseen Foundation | 501(c)(3) | 1994 | $731,587 | 2025-12 | ||
| Foundation A | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Foundation Bible | Religion-related | 501(c)(3) | 2018 | |||
| Frankel Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $79,634 | 2025-12 | |
| Fredrickson Family Memorial Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Friends of Clyde Rice Inc | Arts, culture and humanities | 501(c)(3) | 1994 | $0 | $0 | 2025-12 |
| Friends of Laker HS Soccer | Recreation and sports | 501(c)(3) | 2026 | |||
| Friends of Luscher Farms | Environment | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Friends of Our Lady Queen of Africa | Human services | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Genevieve Hug Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2017 | $0 | $0 | 2026-06 |
| Girls Hope & Beyond | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Give and Go | Youth development | 501(c)(3) | 2026 | |||
| Giveall Foundation | Human services | 501(c)(3) | 2015 | $0 | $0 | 2026-03 |
| Global Talents | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-09 |
| Golad Water Users Association | Mutual and membership benefit | 501(c)(12) | 2013 | $0 | $0 | 2025-12 |
| Gold Star Wives of America Inc | 501(c)(4) | 1950 | $0 | $0 | 2026-03 | |
| Gold Star Wives of America Inc | 501(c)(4) | 1950 | $0 | $0 | 2026-03 | |
| Great Northwest German Shepherd Rescue of Oregon | Animal-related | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Gustav E and Betsy S Schrader Charitable Scholarship Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $466,769 | 2024-12 | |
| Hampton Rising Foundation | Youth development | 501(c)(3) | 2025 | |||
| Heal PG | Health care | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Helen John Foundation | 501(c)(3) | 1971 | $751,825 | 2025-12 | ||
| Henrietta Lacks Foundation Inc | Human services | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| House To House Ministries | Religion-related | 501(c)(3) | 2022 | $0 | $0 | 2022-12 |
| House of Worship Inc | 501(c)(3) | 1976 | ||||
| Human Dignity and Humiliation Studies Inc | Civil rights, social action and advocacy | 501(c)(3) | 2007 | $0 | $0 | 2026-06 |
| Hunting Dog Protection Project | Animal-related | 501(c)(3) | 2026 | |||
| I Choose Love USA | Public and societal benefit | 501(c)(3) | 2022 | $0 | $0 | 2023-12 |
| I Love Lake Oswego | Education | 501(c)(3) | 2019 | $0 | $0 | 2023-12 |
| Inside Out Ministries Inc | 501(c)(3) | 1992 | $0 | $0 | 2025-12 | |
| Institute for Knowledge Organization and Structure Inc | Education | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Intercultural Development Research Institute | Arts, culture and humanities | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| International Association of Lions Clubs | 501(c)(4) | 1940 | $0 | $0 | 2025-06 | |
| International Ocean Law and Science Institute | Environment | 501(c)(3) | 2017 | $0 | $0 | 2023-12 |
| Iraqi Arabic School | Arts, culture and humanities | 501(c)(3) | 2025 | |||
| Iseli Foundation | 501(c)(3) | 1968 | $7.7 million | 2025-12 | ||
| Johns Woods Homeowners Association Inc | Community improvement and capacity building | 501(c)(4) | 2009 | $0 | $0 | 2025-12 |
| Kappa Sigma Fraternity | 501(c)(7) | 1940 | $0 | $0 | 2026-05 | |
| Ken Williams Legacy Guns & Goals Foundation | Arts, culture and humanities | 501(c)(3) | 2025 | |||
| Kigezi Women and Children Health Initiative | Health care | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Kinetic Images Dance Company Inc | Arts, culture and humanities | 501(c)(3) | 2004 | $0 | $0 | 2024-12 |
| Kiwanis Club of Lake Oswego Foundation | Community improvement and capacity building | 501(c)(3) | 2022 | $0 | $0 | 2025-09 |
| Kiwanis International Inc | 501(c)(4) | 1940 | $0 | $0 | 2025-09 | |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2026-06 | |
| Komal Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $2.3 million | 2025-12 | |
| Korean American Coalition Oregon | Civil rights, social action and advocacy | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Ladies in Blue | Community improvement and capacity building | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Lake Baptist Church Lake Oswego Oregon | 501(c)(3) | 1979 | ||||
| Lake Bible Church | Religion-related | 501(c)(3) | 1964 | |||
| Lake Learning Center | Education | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Lake Monsters Robotics | Education | 501(c)(3) | 2026 | |||
| Lake Oswego Chinese Council | Arts, culture and humanities | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Lake Oswego Class of 61 | 501(c)(7) | 1984 | $0 | $0 | 2025-12 | |
| Lake Oswego Film Festival | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Lake Oswego Fire Rescue & Life Safety Benevolent Association | 501(c)(4) | 1998 | $0 | $0 | 2026-06 | |
| Lake Oswego Girls Basketball Club | Recreation and sports | 501(c)(3) | 2018 | $0 | $0 | 2025-08 |
| Lake Oswego Girls Lacrosse | Recreation and sports | 501(c)(3) | 2017 | $0 | $0 | 2026-07 |
| Lake Oswego Girls Softball Little League | Recreation and sports | 501(c)(3) | 2013 | $0 | $0 | 2024-12 |
| Lake Oswego High School Track & Cross Country Booster Club | Education | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Lake Oswego Lions Club Charities Inc | Health care | 501(c)(3) | 1996 | $0 | $0 | 2025-06 |
| Lake Oswego Millennium Concert Band | Arts, culture and humanities | 501(c)(3) | 2001 | $0 | $0 | 2025-06 |
| Lake Oswego Open Studios | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Lake Oswego Pickleball Club | Recreation and sports | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Lake Oswego Police Foundation | Crime and legal-related | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Lake Oswego Police Officers Association | Employment | 501(c)(5) | 2011 | $0 | $0 | 2025-12 |
| Lake Oswego Republican Women | Recreation and sports | 501(c)(7) | 2025 | $0 | $0 | 2025-12 |
| Lake Oswego Sustainability Network | Environment | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Lake Oswego Transitional Shelter Ministry | Housing and shelter | 501(c)(3) | 2000 | $0 | $0 | 2026-06 |
| Lake Oswego United Methodist Church | 501(c)(3) | 1974 | 2013-12 | |||
| Lake Oswego Veterans Memorial | Arts, culture and humanities | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Laker Band & Orchestra Parent Group | Youth development | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Laker Performing Arts Booster Club | Youth development | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Laker Softball | Recreation and sports | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Lakeridge Class of 1994 | Recreation and sports | 501(c)(7) | 2015 | $0 | $0 | 2025-12 |
| Lakeridge Girls Lacrosse Sideline Club | Recreation and sports | 501(c)(3) | 2025 | |||
| Lakers Choir Booster Club | Youth development | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Lakewood Bay Community Club Inc | Recreation and sports | 501(c)(7) | 1977 | $0 | $0 | 2024-12 |
| Lakewood Yacht Club | 501(c)(7) | 1976 | $0 | $0 | 2025-12 | |
| Lamb Foundation | 501(c)(3) | 1971 | $5.9 million | 2025-12 | ||
| Lavigne de Lamour | Community improvement and capacity building | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| League of Women Voters of Oregon | Civil rights, social action and advocacy | 501(c)(3) | 1970 | $0 | $0 | 2025-06 |
| Lesh-Hammersley Manpower Memorial Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $69,971 | 2025-12 | |
| Level the Field | Youth development | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Lifeguard | Public safety, disaster preparedness and relief | 501(c)(3) | 2023 | |||
| Liferoads Fellowship | Religion-related | 501(c)(3) | 2015 | |||
| Living Islands Non-Profit | Education | 501(c)(3) | 2014 | $45,969 | 2024-12 | |
| Lo Change | Education | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Lo Parents for Responsible Tech | Education | 501(c)(3) | 2026 | |||
| Lo for Love | Civil rights, social action and advocacy | 501(c)(3) | 2023 | $0 | $0 | 2026-07 |
| Luta Bird Conservation Inc | Animal-related | 501(c)(3) | 2014 | $0 | $0 | 2026-06 |
| MLD Community Care | Health care | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Madison Alumni Association | Recreation and sports | 501(c)(3) | 2019 | $11,243 | 2024-12 | |
| Marcia H Randall Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $68.1 million | 2024-12 | |
| Mardi Schnitzer Spitzer Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $7,399 | 2025-12 | |
| Marguerite Foundation | Education | 501(c)(3) | 2007 | $3.6 million | 2024-12 | |
| Marlene K Sapinsley Private Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $559,647 | 2024-12 | |
| Marys Landing Neighborhood Asssociation | Community improvement and capacity building | 501(c)(4) | 2024 | $0 | $1 | 2025-12 |
| Mercer Family Foundation | Education | 501(c)(3) | 2014 | $354,012 | 2025-12 | |
| Michael & Diane Takac Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $321,456 | 2025-12 | |
| Money for Missionaries | Religion-related | 501(c)(3) | 2025 | |||
| Moore Charitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Mountain Park Church | 501(c)(3) | 1955 | ||||
| Mountain Park Church Foundation | 501(c)(3) | 1985 | ||||
| Nagarathar Physicians of North America Inc | Health care | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Napo Inc | 501(c)(3) | 1998 | ||||
| Nari PNW Apprenticeships | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| National Center for Psychedelic Education | Education | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| National Charity League Inc Three Rivers Chapter | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $0 | $0 | 2026-05 |
| National Charity League-Blue Heron Chapter | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2008 | $0 | $0 | 2026-05 |
| National League of Young Men Inc | Human services | 501(c)(3) | 2010 | $0 | $0 | 2026-06 |
| Natt McDougall Family Charitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $934,056 | 2025-12 | |
| Navah Retreats Inc | Mental health and crisis intervention | 501(c)(3) | 2026 | |||
| New Thought Center for Spiritual Li | Religion-related | 501(c)(3) | 2014 | |||
| New and Living Way Ministries | Religion-related | 501(c)(3) | 1996 | |||
| Newcomers Welcome Club of Lake Oswego | 501(c)(7) | 1987 | $0 | $0 | 2026-06 | |
| Next Step Uganda | International, foreign affairs and national security | 501(c)(3) | 2026 | |||
| Nicoli Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1996 | $1.9 million | 2025-08 | |
| North Lake Club | Recreation and sports | 501(c)(7) | 2021 | $0 | $0 | 2025-12 |
| North Star Education Foundation | Education | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Northwest Classical Theatre Collaborative Inc | Arts, culture and humanities | 501(c)(3) | 2015 | $0 | $0 | 2025-06 |
| Northwest Environmental Education F Oundation | Education | 501(c)(3) | 2026 | |||
| Northwest Institute for Conflict Resolution | Education | 501(c)(3) | 2002 | $0 | $0 | 2023-06 |
| Northwest Spine Foundation | Medical research | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Nuevas Sonrisas | Health care | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Oliphant Hoover Community Charity | Public and societal benefit | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Oregon Automatic Fire Alarm Association Inc | Community improvement and capacity building | 501(c)(6) | 2018 | $0 | $0 | 2025-12 |
| Oregon Aviation Industries | Community improvement and capacity building | 501(c)(6) | 2019 | $0 | $0 | 2025-12 |
| Oregon Catholic Press | Religion-related | 501(c)(3) | 2001 | 2025-06 | ||
| Oregon Chapter Pnwis-Awma | Science and technology | 501(c)(3) | 2019 | $18,140 | 2026-03 | |
| Oregon Community Choir and Youth Chorale | Arts, culture and humanities | 501(c)(3) | 2025 | |||
| Oregon Energy System Technology and Research Alliance | Environment | 501(c)(3) | 2014 | $1,864 | 2025-12 | |
| Oregon Fraternal Order of Police Foundation | Crime and legal-related | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| Oregon Gerontological Association | 501(c)(3) | 1992 | $0 | $0 | 2025-12 | |
| Oregon Music Giving Organization | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-11 |
| Oregon Raceway Quarter Midget Association | Recreation and sports | 501(c)(3) | 2022 | $17,874 | 2024-12 | |
| Oregon Recovery High School Initiative | Education | 501(c)(3) | 2019 | $0 | $42,520 | 2024-12 |
| Oregon Society of Dermatology Associates | 501(c)(3) | 2010 | $0 | $0 | 2025-12 | |
| Oregon State Federation of Gardens Club Inc | Environment | 501(c)(3) | 2003 | $0 | $0 | 2025-06 |
| Osm Foundation | Health care | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Oswego Garden Club | Environment | 501(c)(7) | 2018 | $0 | $0 | 2025-09 |
| Our Lady of the Lake Endowment Fund | 501(c)(3) | 1946 | ||||
| Our Saviors Lutheran Church | 501(c)(3) | 1988 | ||||
| Our Saviors Lutheran Church Foundation | 501(c)(3) | 1988 | ||||
| PPG Circle of Giving Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Pacific NW Chapter of Asse | Religion-related | 501(c)(3) | 1990 | |||
| Pacific Rivers Charitable Trust | 501(c)(3) | 1994 | $194,217 | 2025-08 | ||
| Pamplin Christian Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1996 | $5.8 million | 2023-12 | |
| Pamplin Foundation | 501(c)(3) | 1961 | $53 million | 2023-12 | ||
| Pastors Kid Support Foundation | Religion-related | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Patricks Children Without Sponsors | Human services | 501(c)(3) | 2004 | $0 | $0 | 2024-12 |
| Personalized Education Foundation | Education | 501(c)(3) | 2023 | $10,259 | 2025-06 | |
| Physician Leadership Project | Health care | 501(c)(3) | 2021 | $520 | 2025-12 | |
| Portland Shotokan | Arts, culture and humanities | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Portlandin Suomi-Koulu-Portland Finnish School | Education | 501(c)(3) | 2004 | $0 | $0 | 2026-06 |
| Press On Journal | Education | 501(c)(3) | 2026 | |||
| Quinsey Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $2.5 million | 2024-12 | |
| Resident Resources | Housing and shelter | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Rip City Reign | Recreation and sports | 501(c)(3) | 2026 | |||
| Robert Zagunis Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $2.9 million | 2025-12 | |
| Roth-Melott Scholarship Foundation | Employment | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Running Wild Track Club | Recreation and sports | 501(c)(3) | 2023 | $1 | 2025-06 | |
| Santi School Project Inc | Education | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Sawyer and Jean Marglous Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $1 million | 2025-12 | |
| Security Traders Association of Portland | 501(c)(6) | 1990 | $0 | $0 | 2024-12 | |
| Senior Housing Initiatives Inc | Housing and shelter | 501(c)(3) | 1997 | $0 | $0 | 2024-12 |
| Seven Thunders | 501(c)(3) | 1994 | $0 | $0 | 2025-12 | |
| Shauna M and Kevin B Flanigan Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2008 | $4.2 million | 2025-12 | |
| Sisters of the Holy Names of Jesusand Mary Us-Ontario Province | 501(c)(3) | 1946 | 2018-06 | |||
| Sky View Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $37.8 million | 2024-12 | |
| Smashing Barriers Organization | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| South Gate City Church | Religion-related | 501(c)(3) | 2001 | |||
| Sparrow Foundation | Education | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Special Living | Human services | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Spiritual Assembly of the Bahais of Lake Oswego | 501(c)(3) | 1995 | ||||
| Stevens Family Foundation | Human services | 501(c)(3) | 2025 | $1 | 2025-12 | |
| Stonefly Maidens | Recreation and sports | 501(c)(7) | 2014 | $0 | $0 | 2025-12 |
| Summit Court Easement Association | Human services | 501(c)(7) | 2020 | $0 | $0 | 2025-12 |
| Supporting Women in Agriculture | Food, agriculture and nutrition | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| The Childrens Hour Academy Foundation | Education | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| The Columbia River Orienteering Club | Recreation and sports | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| The Gurdjieff Foundation of Oregon | Religion-related | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| The Neurodiversity Platform | Human services | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| The Shapira Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $1.1 million | 2025-12 | |
| Theta Epsilon Educational Foundation | Education | 501(c)(3) | 2017 | $0 | $0 | 2026-06 |
| Three Little Words | Human services | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Thurman Street Care | Mental health and crisis intervention | 501(c)(3) | 2024 | |||
| Title 35 Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2023 | $130,310 | 2025-12 | |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Tolu Foundation | Human services | 501(c)(3) | 2025 | |||
| Tools4troops | Public and societal benefit | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Transformative Mediation Alliance | Civil rights, social action and advocacy | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Tributary Foundation Inc | Health care | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Triumphant King Lutheran Church | 501(c)(3) | 1941 | 2013-12 | |||
| Tualatin Valley Professional Firefighters Benevolent Fund | Public safety, disaster preparedness and relief | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Umpqua Bank Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $16.8 million | 2024-12 | |
| Unite 4 Democracy | Education | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Uplift Leadership | Human services | 501(c)(3) | 2020 | $0 | $0 | 2025-09 |
| Veterans Treatment Court Community Support Association | Mental health and crisis intervention | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Veterans of Foreign Wars of the United States Dept of Oregon | Public and societal benefit | 501(c)(19) | 2000 | $0 | $0 | 2025-12 |
| Vets Beyond the Wall | Animal-related | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Visionenvoy | Human services | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Vnam Childrens Foundation | Human services | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| WWLLJ Ministries | Religion-related | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Wag-Able | Animal-related | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Wells Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2007 | $155,604 | 2024-12 | |
| West Linn Lions Womens Lacrosse Booster Club | Recreation and sports | 501(c)(3) | 2025 | |||
| Westover - Lehrer Baseball Scholarship | Education | 501(c)(3) | 2016 | $0 | $0 | 2026-05 |
| Wild Women Society | Public and societal benefit | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Willamette Corridor Association | 501(c)(6) | 2014 | $0 | $0 | 2026-01 | |
| Willamette Women Democrats | Civil rights, social action and advocacy | 501(c)(4) | 2021 | $0 | $0 | 2026-05 |
| Willow and Paw Animal Rescue | Animal-related | 501(c)(3) | 2026 | |||
| Wine & Food Society of Oregon Inc | 501(c)(7) | 1993 | $0 | $0 | 2025-12 | |
| Wisniewski Foundation Declaration of Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $524,406 | 2025-12 | |
| With Love Farms Foundation | Food, agriculture and nutrition | 501(c)(3) | 2026 | |||
| Womens Golf Club at Lake Oswego Municipal Golf Club | Recreation and sports | 501(c)(7) | 2012 | $0 | $0 | 2025-12 |
| Youth Charity League | Youth development | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Advanced Vascular Surgical Skills and Simulation Assessment Prog Inc | Education | 501(c)(3) | 2023 | $-98,781 | $55,665 | 2025-12 |
By cause in Lake Oswego, OR
- Education 79
- Philanthropy, voluntarism and grantmaking foundations 40
- Recreation and sports 38
- Arts, culture and humanities 31
- Human services 24
- Religion-related 23
- Community improvement and capacity building 15
- Health care 15
- Youth development 14
- Environment 13
- Civil rights, social action and advocacy 8
- Animal-related 8
- International, foreign affairs and national security 7
- Employment 6
- Public and societal benefit 6
- Science and technology 5
- Housing and shelter 5
- Diseases, disorders and medical disciplines 4
- Medical research 4
- Mental health and crisis intervention 4
- Food, agriculture and nutrition 3
- Crime and legal-related 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.