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    3. Alonzo Mather Foundation Trust C/O the Chicago Trust Company Na
    Alonzo Mather Foundation Trust C/O the Chicago Trust Company Na logo

    Alonzo Mather Foundation Trust C/O the Chicago Trust Company Na

    ActiveHousing & Shelter
    GRAYSLAKE, ILWebsite3124316599

    About Alonzo Mather Foundation Trust C/O the Chicago Trust Company Na

    The Alonzo Mather Foundation Trust concentrates its philanthropy almost entirely on a single organization, providing unrestricted general operating support. Grants are education-classified and routed to The Mather Foundation, suggesting the trustee prioritizes sustained institutional funding for that flagship entity rather than a diversified portfolio. The foundation appears locally focused (Grayslake/Chicago area) and oriented toward long-term stability of one core grantee.

    Focus Areas

    Sustained general operating support for The Mather FoundationCapacity and institutional support for a single flagship educational/organizational entityLocal (Grayslake/greater Chicago area) institutional philanthropy

    Giving Approach

    Highly concentrated: very large, repeat grants directed to one primary grantee; no evidence of diversified or small-scale giving.

    Funding Style

    unrestricted supportgeneral operating supportflexible/general-use funding

    Notable grantees: The Mather Foundation

    Financial Snapshot

    Annual Giving

    $2M

    Total Assets

    $32.4M

    Total Revenue

    $1.5M

    Total Expenses

    $2.3M

    Typical Grant Size

    Most grants fall between $2M and $2M, with a median of $2M.

    25th Percentile

    $2M

    Median

    $2M

    75th Percentile

    $2M

    Geographic Reach

    Local1 state funded

    About 100% of grants go to recipients in IL.

    Funding intensity
    Low
    High
    Headquarters

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    EIN: 36-6015440
    3 filings on record
    See If You're a Fit — FreeFree account · instant fit score · similar funders

    Topics

    no programmatic focus / general purpose
    Latest 990 Filing

    2025

    Source: IRS Form 990-PF, fiscal year 2025.

    Recent Grants

    Most recent grants reported to the IRS.

    RecipientLocationAmountYearPurpose
    THE MATHER FOUNDATIONEVANSTON, IL$1,980,0002025GENERAL OPERATING PURPOSES
    THE MATHER FOUNDATIONEVANSTON, IL$2,000,0002024GENERAL USE
    THE MATHER FOUNDATIONEVANSTON, IL$2,000,0002023GENERAL USE

    THE MATHER FOUNDATION

    $1,980,000
    EVANSTON, IL2025

    GENERAL OPERATING PURPOSES

    THE MATHER FOUNDATION

    $2,000,000
    EVANSTON, IL2024

    GENERAL USE

    THE MATHER FOUNDATION

    $2,000,000
    EVANSTON, IL2023

    GENERAL USE