Data / Nonprofits / Missouri / Clayton
Nonprofits in Clayton, MO: 189 registered with the IRS
189 nonprofits are registered with the IRS in Clayton, MO, 164 of them 501(c)(3) charities; the 33 that report revenue took in $21 million. The largest by revenue: Wilson School Corporation ($6.1 million), St Louis Girl Scout Trust Fund ($4 million), Clayton Early Childhood Center ($2.6 million). Most common causes: philanthropy, voluntarism and grantmaking foundations (81), education (15), human services (8).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Wilson School Corporation | Education | 501(c)(3) | 1970 | $6.1 million | $9.1 million | 2025-06 |
| St Louis Girl Scout Trust Fund | Youth development | 501(c)(3) | 1970 | $4 million | $34.9 million | 2025-09 |
| Clayton Early Childhood Center | Human services | 501(c)(3) | 2013 | $2.6 million | $1.5 million | 2025-07 |
| St Louis Regional Advanced Manufacturing Innovation Center | Science and technology | 501(c)(3) | 2023 | $1.9 million | $3.3 million | 2024-12 |
| William P Ingersoll Trust C | Youth development | 501(c)(3) | 2023 | $970,692 | $5.7 million | 2025-09 |
| Saint Louis Art Fair | Arts, culture and humanities | 501(c)(3) | 1994 | $793,534 | $335,685 | 2024-12 |
| Joshua Chamberlain Society | Human services | 501(c)(3) | 2014 | $713,042 | $1.7 million | 2024-12 |
| Ypo Inc | 501(c)(6) | 1989 | $620,203 | $551,358 | 2025-06 | |
| The Snow Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $607,564 | $972,917 | 2024-12 |
| Olin Employees Benefit Association Trust | 501(c)(9) | $415,053 | $7.8 million | 2024-12 | ||
| St Louis Region Porsche Club of America Inc | 501(c)(7) | 1977 | $221,503 | $175,696 | 2025-12 | |
| Elizabeth Lewis Saigh Public School Dist of Cuba Mo Trust | Education | 501(c)(3) | 2008 | $219,644 | $1.7 million | 2025-08 |
| St Louis County Police Welfare Association | Human services | 501(c)(3) | 2023 | $217,678 | $521,987 | 2025-12 |
| Clayton School District Parent- Teachers Organization Council | Education | 501(c)(3) | 1996 | $209,778 | $508,811 | 2025-07 |
| Charles A and Anne Morrow Lindbergh Foundation | Environment | 501(c)(3) | 1977 | $196,505 | $101,109 | 2024-12 |
| Sior-St Louis Chapter | Community improvement and capacity building | 501(c)(6) | 2020 | $192,553 | $141,279 | 2024-12 |
| Launchcode 4811 Delmar Building Owner | Education | 501(c)(3) | 2021 | $189,199 | $4.8 million | 2024-12 |
| Assoc of Intervention Specialists | Mental health and crisis intervention | 501(c)(3) | 2011 | $156,782 | $72,912 | 2025-12 |
| Alice G Ogg Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(4) | 2007 | $117,098 | $598,699 | 2025-12 |
| Norwood Hills Charitable Trust | Education | 501(c)(3) | 2014 | $73,528 | $849,228 | 2025-12 |
| St Louis Area Police Chiefs Association | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2004 | $69,975 | $127,430 | 2025-12 |
| River City Journalism Fund | Arts, culture and humanities | 501(c)(3) | 2019 | $61,018 | $121,696 | 2025-12 |
| School Trust Uw Ivy J Trimmer | Philanthropy, voluntarism and grantmaking foundations | 501(c)(4) | 2007 | $60,208 | $1.2 million | 2024-12 |
| Rotary International | 501(c)(4) | 1942 | $48,543 | $152,393 | 2025-06 | |
| Traver Charitable Trust B | Philanthropy, voluntarism and grantmaking foundations | 501(c)(4) | 2007 | $43,932 | $370,457 | 2025-12 |
| Nina Bozarth Trust Uw Fbo Kampf Cem | Philanthropy, voluntarism and grantmaking foundations | 501(c)(13) | 2014 | $41,998 | $445,070 | 2025-09 |
| St Louis County Bar Association Dennis L Beckley President | 501(c)(6) | 1987 | $39,351 | $33,550 | 2025-12 | |
| Mary Hartmann Foundation | 501(c)(4) | 2007 | $31,345 | $638,598 | 2024-12 | |
| Nsal-Saint Louis Chapter | Arts, culture and humanities | 501(c)(3) | 2021 | $24,673 | $67,550 | 2026-05 |
| William Cullen McBride Alumni Club | Education | 501(c)(7) | 2025 | $12,878 | $68,259 | 2024-12 |
| Church Trust Uw Ivy J Trimmer | Philanthropy, voluntarism and grantmaking foundations | 501(c)(4) | 2007 | $12,830 | $224,743 | 2024-12 |
| Local Cedar Hill Cemetery Trust | 501(c)(13) | 1976 | $11,512 | $190,212 | 2025-08 | |
| Charitable Leasing Corporation | 501(c)(2) | 1997 | $3 | $1.1 million | 2025-12 | |
| 3 Legacy Foundation | Animal-related | 501(c)(3) | 2023 | $1,159 | 2024-12 | |
| 360 View of My Peers | Youth development | 501(c)(3) | 2025 | $0 | $0 | 2026-06 |
| Adeline and Edna L Burger Scholarship Foundation | 501(c)(3) | 1981 | $6.9 million | 2026-02 | ||
| Alan Green 4 Chesed Non-Profit Corp | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Anheuser-Busch Foundation | 501(c)(3) | 1975 | $1.2 million | 2024-12 | ||
| Apex Oil Company Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $18.1 million | 2025-12 | |
| Art of Heart Inc | Human services | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Artist Presentation Society | 501(c)(3) | 1949 | $0 | $0 | 2025-06 | |
| Assoc of Chinese Professors at Washington University in St Louis | Education | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Benedictus Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2008 | $318,183 | 2024-12 | |
| Betsy Hosch Patterson and Thomas O Patterson Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $10.5 million | 2025-12 | |
| Birthday Joy Foundation | Human services | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| Bridge To Abilities Inc | Mental health and crisis intervention | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Bryan Lynch Family Foundation | 501(c)(3) | 1980 | $1.6 million | 2025-12 | ||
| Carriers of the Covenant Ministries | 501(c)(3) | 1991 | ||||
| Center for Creative Conflict Resolution | 501(c)(3) | 2000 | $0 | $0 | 2024-12 | |
| Central Presbyterian Church | 501(c)(3) | 1982 | ||||
| Charles E Van Orstrand Trust Uw | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $957,850 | 2025-09 | |
| Charles L Rothwell Irrevocable Charitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1997 | $917,111 | 2025-02 | |
| Clayro Emergency Relief Inc | 501(c)(3) | 1962 | $0 | $0 | 2025-06 | |
| Clayton Community Theatre | Arts, culture and humanities | 501(c)(3) | 1998 | $0 | $0 | 2025-12 |
| Clayton First Responders Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Clayton Girls in Sports Booster Club | Education | 501(c)(3) | 1991 | $0 | $0 | 2026-06 |
| Clayton Recreation Sports and Wellness Commission Inc | Recreation and sports | 501(c)(3) | 1998 | |||
| Clayton South Asian Society | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Congregation Neve Shalom | Religion-related | 501(c)(3) | 1999 | |||
| Cope House Inc | Crime and legal-related | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Cornerstone Chorale Inc | 501(c)(3) | 1990 | $0 | $0 | 2026-06 | |
| Cox Foundation Inc | 501(c)(3) | 1970 | $21.3 million | 2025-12 | ||
| Craig Milby Irrevocable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2012 | $252,458 | 2025-06 | |
| D G Wilson & S R Wilson Charitble Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $11.8 million | 2025-09 | |
| David and Dorothy Kemper Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $9.1 million | 2025-08 | |
| Dca Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $3.8 million | 2025-12 | |
| Delta Sigma Phi Fraternity Inc | 501(c)(7) | 1969 | $0 | $0 | 2025-12 | |
| Dierberg Fam Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $11.5 million | 2024-12 | |
| Dor L Dor Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $138,165 | 2025-12 | |
| Dorothy S Blackburn Charitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $1.7 million | 2025-09 | |
| Dorothy W Ford Memorial Trust St Louis County Bank Ttee | 501(c)(3) | 1977 | $1.4 million | 2025-10 | ||
| Dr Lee B Harrison and Virginia G Harrison Memorial Student Fund | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1996 | $3.3 million | 2026-03 | |
| Earl Charitable Trust Fbo Univ Ozarks 43P013700 | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2007 | $823,163 | 2025-12 | |
| Edna Haddad Char Trust 125590 | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $325,002 | 2025-06 | |
| Edward Chase Garvey Memorial Foundation | 501(c)(3) | 1973 | $3.8 million | 2025-09 | ||
| Elberth R & Gladys F Grant Char Trust 116547 | 501(c)(3) | 1989 | $5.4 million | 2025-07 | ||
| Elizabeth E & Joseph H Bascom Charitable Foundation 510 Locust S | 501(c)(3) | 1959 | $1.5 million | 2025-12 | ||
| Elnel Foundation | 501(c)(3) | 1962 | $285,180 | 2025-12 | ||
| Emphasis Empowerment Inc | Mental health and crisis intervention | 501(c)(3) | 2025 | |||
| Empowerment4life Foundation Inc | Youth development | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Fivefold Foundation | Human services | 501(c)(3) | 2025 | $14 million | 2025-12 | |
| Florence E Wamser Charitable Trust Fbo Childrens Hospital | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $921,745 | 2025-12 | |
| Florence E Wamser Charitable Trust Fbo First Divine Science Church | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $840,021 | 2025-12 | |
| Florence E Wamser Charitable Trust Fbo Tyler Place Pres | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $1.2 million | 2025-12 | |
| Fred A Camman Memorial Trust Fbo Shriners | 501(c)(3) | 1973 | $1.3 million | 2025-05 | ||
| Friends Forever Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $189,472 | 2024-12 | |
| Funks Grove Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $1.2 million | 2025-09 | |
| George E Inglett Scholarship FDN Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $1.5 million | 2025-09 | |
| George L Parker Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $2.4 million | 2024-12 | |
| George S Hanna Estate Trust Uw | 501(c)(92) | $147,042 | 2024-12 | |||
| Graybar Foundation | 501(c)(3) | 1983 | $16.6 million | 2025-11 | ||
| H and H Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $65,759 | 2025-06 | |
| Henry G Schwartz Jr & Sally D Schwartz 2010 Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2011 | $804,563 | 2025-06 | |
| High Point Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $14.4 million | 2025-12 | |
| Interco Charitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $34 million | 2024-12 | |
| Irving & Beatrice Edison Foundation Inc | 501(c)(3) | 1962 | $1.1 million | 2025-07 | ||
| Ivy Leaf Foundation Incorporated | Human services | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| J Michael Char Bev Farm FDN Trust Fbo June Michael Charitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $15.6 million | 2025-06 | |
| Jackes Foundation | 501(c)(3) | 1968 | $1.9 million | 2024-12 | ||
| James Flaherty Trust Ua 43609900 | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $3 million | 2025-09 | |
| James H Woods Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $896,702 | 2026-03 | |
| Janning Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2008 | $1.5 million | 2025-12 | |
| Jasons Legacy | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2023 | $57,251 | 2024-12 | |
| John M Wolff Foundation Commerce Bank | 501(c)(3) | 1958 | $2.6 million | 2025-12 | ||
| John N & Kathleen S Macdonough Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $3.5 million | 2024-12 | |
| John Newell Trust Ua Wappapelo Cem | 501(c)(92) | $144,342 | 2013-12 | |||
| Ken and Donna Irwin Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2026 | $77,249 | 2024-12 | |
| Kent and Jeannine Kalkwarf Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $1.6 million | 2024-12 | |
| Kidz Code | Education | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Labor Tech Research Network | Science and technology | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Leader Foundation | 501(c)(3) | 1950 | $253,065 | 2026-01 | ||
| Les Amis | Arts, culture and humanities | 501(c)(3) | 2019 | $0 | $0 | 2026-03 |
| Linn H Bealke Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2008 | $1.4 million | 2025-12 | |
| Living Insights | Religion-related | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Lorence I Millstead Irrevocable Charitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $4.6 million | 2026-04 | |
| Louis L & Julia Dorothy Coover Charitable Foundation | 501(c)(3) | 1995 | $6.4 million | 2025-12 | ||
| Louis W Riethmann Jr Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $1.6 million | 2025-06 | |
| Louise B Empson Trust Under Will | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $4.6 million | 2025-09 | |
| M-A-S Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2008 | $483,840 | 2024-11 | |
| MR and MRS Norman B Heimos Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $54,240 | 2024-11 | |
| Mae K Steele Trust | 501(c)(92) | $6.8 million | 2025-09 | |||
| Maor Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2004 | $12.3 million | 2024-12 | |
| Marie & Mayer Winkler Peter C & Helen D Johannes Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $4.4 million | 2025-06 | |
| Marie Wootten Charitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2023 | $916,112 | 2025-04 | |
| Mary Gridley Bell Trust Uw | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $435,880 | 2024-12 | |
| Mary Gridley Bell Trust Uw Fbo St Joseph 3284B | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2023 | $275,528 | 2025-12 | |
| Mary N Moody Irrv Trust Fbo R-V School | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $1.1 million | 2024-12 | |
| Mary P Humble Private Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2009 | $805,277 | 2025-05 | |
| Matie R Viles Charitable Trust 7001100-0283500 | 501(c)(3) | 1972 | $1.2 million | 2025-12 | ||
| May & Wallace Cady Memorial Trust | 501(c)(3) | 1975 | $703,806 | 2025-12 | ||
| Michelle P and Steven L Trulaske Sr Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2006 | $295,538 | 2025-12 | |
| Midwest Regional Payroll Conference Organization | Employment | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Mildred Herbert & Julian Simon Foundation | 501(c)(3) | 1994 | $11.5 million | 2025-09 | ||
| Missouri Collaborative Institute | Education | 501(c)(3) | 2025 | $0 | $0 | 2021-12 |
| Missouri Society of Pathologists Foundation | Education | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Mizis Fam Educational Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $5 million | 2025-06 | |
| Mound City Medical Forum | 501(c)(6) | 1983 | $0 | $0 | 2025-08 | |
| Museum Docent Education Association | Arts, culture and humanities | 501(c)(3) | 2008 | $0 | $0 | 2024-12 |
| Mysun Charitable Foundation | 501(c)(3) | 1969 | $67.3 million | 2025-10 | ||
| Napier Foundation T-3422 | 501(c)(3) | 1957 | $1.9 million | 2024-12 | ||
| Nina May Bozarth Testamentary Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $2.8 million | 2025-09 | |
| Norman J Stupp Foundation | 501(c)(3) | 1953 | $19 million | 2025-06 | ||
| O V Douglass Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2007 | $1 million | 2025-09 | |
| Oscar M Cohn Charitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $552,202 | 2025-09 | |
| Peterson Fam Charitable Trust 0414999011 | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $1.4 million | 2025-12 | |
| Preston M Green Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $15.9 million | 2025-07 | |
| Ray Marglous Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $2.3 million | 2024-12 | |
| Richard J Wilkinson-Wash Univ | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2010 | $668,950 | 2026-03 | |
| Richard W and Phyllis B Duesenberg Foundation | 501(c)(3) | 1989 | $15.4 million | 2024-12 | ||
| Robert F Empson Trust | 501(c)(3) | 2022 | $2 million | 2025-09 | ||
| Ross Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $27.3 million | 2024-12 | |
| Rubin Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $8.8 million | 2024-12 | |
| Saint Louis Colombian Society | Arts, culture and humanities | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Saint Louis County Save Shelter Animals Valued Every Day | Animal-related | 501(c)(3) | 2024 | $0 | $0 | 2026-08 |
| Saint Louis LGBTQ Chamber of Commerce | Community improvement and capacity building | 501(c)(6) | 2024 | $0 | $0 | 2025-12 |
| Sara Jean Revocable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2008 | $806,372 | 2025-10 | |
| Serbian Attorney Association | Crime and legal-related | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Show-Me State Opticians Society | Public and societal benefit | 501(c)(3) | 2025 | $0 | $0 | 2025-03 |
| Shwartz Fam Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $1.6 million | 2025-09 | |
| Sigma Legacy Foundation | Education | 501(c)(3) | 2017 | $0 | $0 | 2025-10 |
| St Louis Area Cit Coordinating Council | Mental health and crisis intervention | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| St Louis Area Womens Police Soccer Team | Recreation and sports | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| St Louis Chapter of the American Society of Landscape Architects | Community improvement and capacity building | 501(c)(6) | 2020 | $0 | $0 | 2025-10 |
| St Louis Impact | Recreation and sports | 501(c)(3) | 2018 | $0 | $0 | 2025-10 |
| St Louis for St Rock STL 4 STR | Human services | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| St Michael School of Clayton | Education | 501(c)(3) | 2022 | |||
| Sylvester Hunt Charitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $4.7 million | 2026-03 | |
| Technology for Disabled Americanstfda | Employment | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| The Heart of Oak Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1990 | $793,144 | 2025-12 | |
| The Joseph and Diana Carter Foundation | Community improvement and capacity building | 501(c)(3) | 1995 | $295,733 | 2024-12 | |
| The Scottish St Andrew Society of Greater St Louis | 501(c)(3) | 1978 | $0 | $0 | 2025-08 | |
| The St Louis Chapter of the Risk Management Association | Community improvement and capacity building | 501(c)(6) | 2014 | $0 | $0 | 2025-08 |
| The Tim and Lillian Soldwedel Foundation | Education | 501(c)(3) | 1996 | $257,386 | 2025-09 | |
| Thiemann Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $882,559 | 2025-12 | |
| Thomas Campbell Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2007 | $2.2 million | 2025-09 | |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Toko Math | Education | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Triple A Youth Foundation | Recreation and sports | 501(c)(3) | 1966 | $0 | $0 | 2024-12 |
| Triumphant West Church | Religion-related | 501(c)(3) | 2020 | |||
| Victor & Selene Deliniere Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2009 | $3.2 million | 2026-04 | |
| Virgil & Norma Haderlein Char Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2015 | $1.4 million | 2025-09 | |
| Voss Fam Foundation Trust Agreement | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2017 | $2.5 million | 2025-12 | |
| Walter L Spurck TW | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2007 | $6,331 | 2024-12 | |
| Westermann Joint LVG Rvoc Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $867,945 | 2025-09 | |
| William S Barnickel Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1996 | $652,721 | 2024-12 | |
| William W Bryant Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2026 | |||
| Working Group for Bosnia and Herzegovina | International, foreign affairs and national security | 501(c)(4) | 2023 | $0 | $0 | 2024-12 |
| Wydown Terrace Association | 501(c)(4) | 1943 | $0 | $0 | 2025-12 | |
| Zechus Hatorah Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
By cause in Clayton, MO
- Philanthropy, voluntarism and grantmaking foundations 81
- Education 15
- Human services 8
- Arts, culture and humanities 8
- Community improvement and capacity building 5
- Mental health and crisis intervention 4
- Recreation and sports 4
- Youth development 4
- Religion-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.