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GREATER MADISON CONSERVATION SOCIETY INC

EIN 39-6077008 MADISON, WI

Browse the largest nonprofits in Wisconsin

Revenue 2023
$63
Expenses 2023
$71,819

Program services were 70.2% of total expenses calculated — Part III's total program service expenses over total expenses, both as filed.

As filed

Subsection
03
Street
PO BOX 259302

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 · 2023

Primary exempt purpose

TO SUPPORT THE LONG-TERM PROTECTION AND BENEFIT OF PUBLIC OR CONSERVED LANDS AND WILDLIFE IN MADISON AND GREATER SOUTHCENTRAL WISCONSIN REGION THROUGH CONSERVATION, EDUCATION, AND COMMUNITY.

  • THE SOCIETY CONTINUED TO RECEIVE UNSOLICITED DONATIONS AND ESTATE GIFTS THAT PROVIDED BENEFIT TO THE HENRY VILAS ZOO THROUGH ITS DISSOLUTION ON MARCH 31, 2024.

    Expenses $50,426 · Grants $50,426

As filed on the 2023 return. The filer continues this part on Schedule O, which is not shown here.

Officers and directors · 2023

As listed in Part VII of the 2023 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Amy Supple

    PRESIDENT

    Total calculated
    $0
    Hours/week
    2

  • Thomas Hanson

    TREASURER AND SECRETARY

    Total calculated
    $0
    Hours/week
    10

  • Jason Maas

    VICE PRESIDENT

    Total calculated
    $0
    Hours/week
    1

  • Lilly Bickkers

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • Courtney Comer

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • Brad Duesler

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • Laura Gillespsie

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

  • Mark Markel

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

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

  • 2023
    Revenue
    $63
    Expenses
    $71,819
    Contributions
    not reported
    Grants paid
    $50,426
  • 2023
    Revenue
    $180
    Expenses
    $31,961
    Contributions
    not reported
    Grants paid
    not reported
  • 2022
    Revenue
    $68
    Expenses
    $47,671
    Contributions
    not reported
    Grants paid
    not reported

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-EZ

    Revenue
    $1,729
    Expenses
    $28,356
    Assets (EOY)
    $162,135

  • 2020 · 990

    Revenue
    $664
    Expenses
    $142,629
    Assets (EOY)
    $188,645

  • 2018 · 990

    Revenue
    $4,424,741
    Expenses
    $2,795,509
    Assets (EOY)
    $9,220,321

  • 2017 · 990

    Revenue
    $3,764,663
    Expenses
    $2,751,924
    Assets (EOY)
    $8,046,917

  • 2016 · 990

    Revenue
    $4,266,983
    Expenses
    $3,154,486
    Assets (EOY)
    $7,055,757

  • 2015 · 990

    Revenue
    $4,270,091
    Expenses
    $3,063,400
    Assets (EOY)
    $5,463,596

  • 2013 · 990

    Revenue
    $3,261,511
    Expenses
    $2,577,252
    Assets (EOY)
    $4,976,823

  • 2012 · 990

    Revenue
    not reported
    Expenses
    $3,605,125
    Assets (EOY)
    $4,808,427

  • 2011 · 990

    Revenue
    not reported
    Expenses
    $1,847,511
    Assets (EOY)
    $5,462,302

  • 2010 · 990

    Revenue
    not reported
    Expenses
    $3,273,181
    Assets (EOY)
    $5,160,791

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

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

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 1 November 2026, for every organization at once. Returns through tax year 2023, the newest we have parsed for this organization.