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The CORE Foundation

EIN 36-3991833 Chicago, IL

Revenue 2022
$57,746
Expenses 2022
$10,665,702

Program services were 99.7% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
Street
2020 W Harrison Street

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Mission and programs · 2022

Mission

The CORE Foundation promotes & supports the work of the Ruth M. Rothstein CORE Center for prevention, care & research of HIV/AIDS & other related infectious diseases.

Activities or mission (Part I)

To promote and support the work of an outpatient facility.

  • Provided support for the CORE Center's research activities.

    Expenses $10,634,284 · Grants $24,982 · Revenue $13,781

As filed on the 2022 return.

Officers and directors · 2022

As listed in Part VII of the 2022 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • See Schedule O for

    Board of Directors

    Total calculated
    $0
    Hours/week
    1
  • Esther Joo

    Executive Director

    Total calculated
    $68,430
    From this org
    $68,430
    From related orgs
    $0
    Other
    $0
    Hours/week
    40

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

  • 2022
    Revenue
    $57,746
    Expenses
    $10,665,702
    Contributions
    $0
    Grants paid
    $24,982

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

  • 2021 · 990

    Revenue
    $391,940
    Expenses
    $1,674,305
    Assets (EOY)
    $10,986,019
  • 2020 · 990

    Revenue
    -$7,186,343
    Expenses
    $2,843,547
    Assets (EOY)
    $13,733,031
  • 2019 · 990

    Revenue
    $3,148,157
    Expenses
    $1,792,821
    Assets (EOY)
    $23,338,169
  • 2018 · 990

    Revenue
    $1,557,667
    Expenses
    $1,810,307
    Assets (EOY)
    $21,559,837
  • 2017 · 990

    Revenue
    $2,448,565
    Expenses
    $1,977,085
    Assets (EOY)
    $21,405,083
  • 2016 · 990

    Revenue
    $1,705,083
    Expenses
    $1,956,534
    Assets (EOY)
    $21,613,436
  • 2015 · 990

    Revenue
    $1,552,324
    Expenses
    $1,839,812
    Assets (EOY)
    $21,497,555
  • 2014 · 990

    Revenue
    $1,835,951
    Expenses
    $1,928,314
    Assets (EOY)
    $21,935,104
  • 2013 · 990

    Revenue
    $2,171,948
    Expenses
    $2,156,412
    Assets (EOY)
    $22,377,214
  • 2012 · 990

    Revenue
    not reported
    Expenses
    $2,215,147
    Assets (EOY)
    $22,215,284

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all. Showing the 10 most recent; the API carries the rest.

Grants made

  • Hektoen Institute LLC

    $0

    2022 General operating

Where these grants went next →

Grants received

No itemized grant names this organization as a recipient. Only grants over $5,000 are itemized, and only by filers of the full Form 990.

Related organizations

From Schedule R Part II, where a filer lists the tax-exempt organizations it is related to by control. It does not record shared board members or money.

Declared on its 2022 return

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Not present in the most recent drop.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 13 October 2026 and read 29 October 2026, for every organization at once. Returns through tax year 2022, the newest we have parsed for this organization.