Funding search · EIN 866224242 · Tucson, AZ
Ruth McC Tankersley Charitable Fnd
A private foundation (files IRS Form 990-PF). Most private foundations do not take unsolicited applications; the route in is usually a program officer.
- 194
- grants reported
- $18.6M
- total given
- 2022–2025
- filing years
- $50,000
- median grant
Based on grants this organization reported to the IRS for tax years 2022–2025. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.
What they fund
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Funding pattern
What this funder pays for, at what size, and how to position adjacent work. Read from their filings, with every number checked against the record.
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Top recipients
Repeat recipients are the strongest signal of whether a funder has an open door or quietly re-funds the same organizations.
- Michaels Foundation8 grants · $2.9M
- Woodwell Climate Research Cntr4 grants · $2.7M
- World Resources Institute4 grants · $2.7M
- The Gregory School10 grants · $1.2M
- Michaels Foundation2 grants · $726,000
- Rollins College3 grants · $600,000
- Heavenly Hoofs4 grants · $520,000
- Nichlaus Childrens Hosp Fnd2 grants · $500,000
- Elusen4 grants · $416,000
- Community Fnd for Southern Az4 grants · $396,000
Giving over time
Grant history
The 100 largest of 194 grants.
- $950,000
Michaels Foundation · Groveland, FL · 2025
Grant for Veteran Well-Being Endowment Fund
- $940,000
Michaels Foundation · Groveland, FL · 2024
Support of Veterans and their Families
- $700,000
Woodwell Climate Research Cntr · Falmouth, MA · 2025
Grant support general operating exp research
- $700,000
World Resources Institute · Washington, DC · 2025
Grant for general operating Exp
- $700,000
Woodwell Climate Research Cntr · Falmouth, MA · 2024
Grant support general operating exp research
- $700,000
World Resources Institute · Glen Burnie, MD · 2024
Grant for WRIs Climate program
- $700,000
Woodwell Climate Research Cntr · Falmouth, MA · 2023
Grant support general operating exp research
- $700,000
World Resources Institute · Washington, DC · 2023
Grant for WRIs Climate program
- $650,000
Michaels Foundation · Saint Cloud, FL · 2023
Grant for support to Veterans and families
- $600,000
Woodwell Climate Research Cntr · Falmouth, MA · 2022
Grant money Fund for Climate Control Solutions
- $600,000
World Resources Institute · Washington, DC · 2022
WRIs Climate program
- $550,000
Michaels Foundation · Saint Cloud, FL · 2022
Support of Veterans and their Families
- $250,000
Nichlaus Childrens Hosp Fnd · Miami, FL · 2023
General Funding - 2018 Agreement
- $250,000
Nichlaus Childrens Hosp Fnd · Miami, FL · 2022
General Funding - 2018 Agreement
- $210,000
Woodwell Climate Research Ctr · Falmouth, MA · 2022
Grant for General operating exp and Res
- $200,000
Michaels Foundation · Groveland, FL · 2025
Grant for Fundraising programs
- $200,000
Rollins College · Winter Park, FL · 2024
Grant Money for the MM Innovation Fund
- $200,000
The Gregory School · Tucson, AZ · 2024
Grants Friday Exploration Program
- $200,000
Rollins College · Winter Park, FL · 2023
Grant Money for the MM Innovation Fund
- $200,000
Rollins College · Winter Park, FL · 2022
Grant Money for the MM Innovation Fund
- $170,000
Heavenly Hoofs · Saint Cloud, FL · 2024
Grant to support&provide srvs to Veterans PTSD
- $170,000
Heavenly Hoofs · Saint Cloud, FL · 2023
Grant to support&provide srvs to Veterans PTSD
- $170,000
Heavenly Hoofs · Saint Cloud, FL · 2022
Grant to support&provide srvs to Veterans PTSD
- $150,000
Community Fnd of Southern Az · Tucson, AZ · 2025
Grant Miller Luke Jakobsen Donor Advised Fund
- $150,000
St Matthews Episcopal Church Chand · Chandler, AZ · 2025
Grant for ministry programs and interfaith miss
- $150,000
The Gregory School · Tucson, AZ · 2025
Grant to sup budget fin aid programs tutoring
- $150,000
The Gregory School · Tucson, AZ · 2024
Grant general operations
- $150,000
The Gregory School · Tucson, AZ · 2023
Grants money for financial aid
- $150,000
University of Az · Tucson, AZ · 2023
Herd Agreement - Al Marah Arabian Mare Herd
- $150,000
The Gregory School · Tucson, AZ · 2022
Grants Student scholarship annual improvement mnt
- $150,000
University of Az · Tucson, AZ · 2022
Herd Agreement - Al Marah Arabian Mare Herd
- $120,000
Arizona Burn Foundation · Phoenix, AZ · 2024
Grant to support life of burn survivors
- $115,000
Nature Forward · Chevy Chase, MD · 2025
Grant support general Operating Exp
- $115,000
Nature Forward · Chevy Chase, MD · 2024
Grant support general Operating Exp
- $115,000
Nature Forward · Chevy Chase, MD · 2023
Grant for Envir Educ conservation restoration pr
- $115,000
Audubon Naturalist Society · Chevy Chase, MD · 2022
Grant for Envir education programs Conservation
- $104,000
Elusen · Palm Bay, FL · 2025
Grant support Graphic Design prntg Ser
- $104,000
Elusen · Palm Bay, FL · 2024
Grant support Graphic Desgn&prntg Ser
- $104,000
Elusen · Palm Bay, FL · 2023
Grant for graphic design & printing costs
- $104,000
Elusen · Palm Bay, FL · 2022
Grant for graphic design & printing costs
- $100,000
Michaels Foundation · Eustis, FL · 2025
Grant for fundraising programs
- $100,000
Community Fnd for Southern Az · Tucson, AZ · 2024
Grant money earmarked for the HM and LJ donor Fund
- $100,000
Community Fnd for Southern Az · Tucson, AZ · 2023
Grant money earmarked for the HM and LJ donor Fund
- $100,000
Defenders of Wildlife · Washington, DC · 2023
Grant support at risk widlife mntn biodiversity
- $100,000
The Church of the Epiphany · Tempe, AZ · 2023
Grant support reinvigoration programs
- $100,000
The Gregory School · Tucson, AZ · 2023
Grant general operations
- $100,000
Community Fnd for Southern Az · Tucson, AZ · 2022
Grant money earmarked for the HM and LJ donor Fund
- $100,000
Defenders of Wildlife · Washington, DC · 2022
Grant protecting native animals & Plants
- $100,000
The Gregory School · Tucson, AZ · 2022
Grant general operations
- $100,000
Therapeutic Riding of Tucson · Tucson, AZ · 2022
Grant sustainability improvement areas
- $96,000
Community Fnd for Southern Az · Tucson, AZ · 2025
Grant money earmarked for the HM and LJ donor Fund
- $95,000
Defenders of Wildlife · Washington, DC · 2024
Grant support imperiled species & habitats
- $86,000
Michaels Foundation · Groveland, FL · 2025
Grant for support for Veterans
- $85,000
Flandrau Science Center Planetarium · Tucson, AZ · 2025
Grant in Sup Marine Disc Exh k-12 Educ Prog
- $85,000
St Michaels Parish Day School · Tucson, AZ · 2025
Grant support Fac and Bldg improvements
- $85,000
The Gregory School · Tucson, AZ · 2025
Grant for interm Head of School
- $85,000
Ua Foundation Fbo Cooper Center · Tucson, AZ · 2025
Grant assist in hiring Educ staff
- $85,000
St Michaels Parish Day School · Tucson, AZ · 2024
Grant support school counselor
- $85,000
Ua Foundation Fbo Cooper Center · Tucson, AZ · 2024
Grant- assist in hiring Educ staff
- $85,000
St Michaels Parish Day School · Tucson, AZ · 2023
Grant costs school chaplain safety and security
- $85,000
Ua Foundation Fbo Cooper Center · Tucson, AZ · 2023
Grant- assist in hiring Educ staff new Fac
- $85,000
St Michaels Episcopal Church Sch · Tucson, AZ · 2022
Grant Consultant Marketying & Strategic plan Exp
- $85,000
Ua Foundation Fbo Cooper Center · Tucson, AZ · 2022
Grant- assist in hiring Educ staff new Fac
- $80,000
Episcopal Diocese of Arizona · Phoenix, AZ · 2025
Grant support campus ministries
- $80,000
John Hopkins Medicine · Baltimore, MD · 2025
Grant to research patients and proj Alzheimers
- $80,000
Episcopal Diocese of Arizona · Phoenix, AZ · 2024
Grant support rural congregations
- $76,000
Michaels Foundation · Saint Cloud, FL · 2022
Grant for support to Veterans and families
- $73,000
The Intentional Man Project · Los Angeles, CA · 2024
Grant for updating equip skills training & job Dev
- $70,000
The Church of the Epiphany · Tempe, AZ · 2024
Grant reduce debtparish clergy renwl
- $70,000
Friends of Hutto Dog Park · Hutto, TX · 2023
Grant money earmarked Brushy Creek Dog Park
- $70,000
Friends of Hutto Dog Park · Hutto, TX · 2022
Grant money earmarked for general operations
- $67,000
St Matthews Episcopal Church Chand · Chandler, AZ · 2023
Grant for ministry programs and interfaith miss
- $65,000
Arizon Burn Foundation · Phoenix, AZ · 2023
Grant to support life of burn survivors
- $60,000
The Intentional Man Project · Los Angeles, CA · 2025
Grant for updating equip skills training job Dev
- $60,000
Flandrau Science Centerplanetarium · Tucson, AZ · 2024
Grant-support Univ of Sce ExhDisc Trs
- $60,000
The Intentional Man Project · Los Angeles, CA · 2023
Grant support mem of trans experience prog
- $50,000
Arizona Burn Foundation · Phoenix, AZ · 2025
Grant to support life of burn survivors
- $50,000
Chandler Center for the Arts · Chandler, AZ · 2025
Grant for Connecting kids youth arts programs
- $50,000
Friends of Hutto Dog Park · Hutto, TX · 2025
Grant in support dog park and Equip
- $50,000
Tanglewood Music Center · Boston, MA · 2025
Grant Music Center-Rubin
- $50,000
Tucson Childrens Museum · Tucson, AZ · 2025
Grant for general operating exp arts STEM Exh
- $50,000
Chandler Center for the Arts · Chandler, AZ · 2024
Grant for Connecting kids youth arts programs
- $50,000
Friends of Hutto Dog Park · Hutto, TX · 2024
Grant support adl splash pad dogs
- $50,000
Tanglewood Music Center · Boston, MA · 2024
Grant Music Center-Rubin
- $50,000
Tucson Childrens Museum · Tucson, AZ · 2024
Grant for general operating expenses
- $50,000
University of Az Fnd · Tucson, AZ · 2024
Herd Agreement - Al Marah Arabian Mare Herd
- $50,000
Flandrau Science Centerplanetarium · Tucson, AZ · 2023
Grant- overhaul & expan Marine Discv Exh & Educ
- $50,000
Kaunalewa · Kekaha, HI · 2023
Grant support prepare chapter & Verst annotation
- $50,000
Make a Wish Foundation · Scottsdale, AZ · 2023
Grant support granting wishes
- $50,000
Tanglewood Music Center · Boston, MA · 2023
Grant money for benefit of the Music Center
- $50,000
The Gregory School · Tucson, AZ · 2023
Grant student schlr general operations
- $50,000
Tucson Childrens Museum · Tucson, AZ · 2023
Grant for general operating expenses
- $50,000
Chandler Center for the Arts · Chandler, AZ · 2022
Grant for Connecting kids youth arts programs
- $50,000
Flandrau Science Centerplanetarium · Tucson, AZ · 2022
Grant- overhaul & expan Marine Discv Exh & Educ
- $50,000
Make a Wish Foundation · Scottsdale, AZ · 2022
Grant for renovation wishes
- $50,000
Tanglewood Music Center · Boston, MA · 2022
Grant money for benefit of the Music Center
- $50,000
The Gregory School · Tucson, AZ · 2022
Grant Matching EE Ford Fnd enhanc Frid Explr
- $50,000
Tucson Childrens Museum · Tucson, AZ · 2022
Grant for general operating expenses
- $40,000
College Bound · Washington, DC · 2025
Grant support Academic Mentoring
- $40,000
Friends Club · Bethesda, MD · 2025
Grant for support early stages of dementia
Grants already paid are the record; PaperOrbit reads your paper and finds the funders whose record matches it — then explains why.
Search funders like this oneSource: IRS Form 990-PF, Part XV, as filed by the foundation. These are grants already paid — a record of what this funder backs, not an open call.

