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ANN ARBOR HANDS ON MUSEUM

EIN 38-2236345 ANN ARBOR, MI

Revenue 2024
$4,568,439
Expenses 2024
$4,645,663

Program services were 73.7% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
A520
Classification
1000
Street
220 E ANN ST

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 · 2024

Mission

ANN ARBOR HANDS-ON MUSEUM CREATES MOMENTS OF DISCOVERY THAT INSPIRE CURIOSITY, EXPLORATION AND RESPECT FOR STEM AND THE NATURAL WORLD. TOGETHER WITH THE LESLIE SCIENCE & NATURE CENTER, WE ENVISION A WORLD WHERE CURIOSITY TODAY LEADS TO MORE PURPOSEFUL LIVES TOMORROW.

  • THE ANN ARBOR HANDS-ON MUSEUM AND LESLIE SCIENCE & NATURE CENTER PROVIDE UNIQUE, INSPIRING PROGRAMS AND SPACES FOR COMMUNITIES ACROSS SOUTHEASTERN MICHIGAN TO ENJOY. WE SERVE OVER 300,000 ANNUALLY THROUGH OUR INNOVATIVE PROGRAMMING, ENGAGING AREA SCHOOLS, SCOUTS, COMMUNITY GROUPS AND FAMILIES TO EXPLORE STEM CONCEPTS AND CAREERS. THROUGH OUR ANN ARBOR LOCATIONS AND OUTREACH PROGRAMMING, WE ENGAGE PEOPLE ACROSS 11 COUNTIES IN SOUTHEAST MICHIGAN AS WELL AS THROUGHOUT THE STATE AND NATION THROUGH OUR DISTANCE LEARNING PROGRAMS. IN ADDITION, WE PROVIDE ROBUST TOP-RATED VIRTUAL PROGRAMMING ACROSS THE COUNTRY AND EVEN WORLD-WIDE. THE MUSEUM OPERATES DAILY PROGRAMMING BOTH ON- AND OFF-SITE; BRINGING SCIENTIFIC CONCEPTS TO LIFE THROUGH HANDS-ON EXPERIMENTS. THE MUSEUM CENTERS ACCESSIBILITY IN OUR PROGRAMMING WITH SCHOLARSHIPS, AS WELL AS DISCOUNTED ADMISSIONS FOR UNDERSERVED COMMUNITIES. BARRIER-FREE ACCESS IS PARAMOUNT TO OUR WORK, AND WE SEEK TO EXPLORE EXPANDING OPPORTUNITIES FOR ALL TO LEARN ABOUT STEM AND EXPLORE CAREER PATHWAYS. THE LESLIE SCIENCE AND NATURE CENTER PROVIDES PROGRAMMING WHICH INCLUDES ENVIRONMENTAL EDUCATION ALONG WITH WILDLIFE AND SCIENCE-BASED PROGRAMS FOR CHILDREN AND FAMILIES. PROGRAMMING INCLUDES SCHOOL FIELD TRIPS TO THE NATURE CENTER, OUTREACH ACROSS SOUTHEASTERN MICHIGAN INCLUDING LIVE WILDLIFE PRESENTATIONS AND ENVIRONMENTAL PROGRAMMING AS WELL AS A ROBUST SUMMER CAMP PROGRAM.

    Expenses $3,425,232 · Revenue $3,086,698

As filed on the 2024 return. The filer continues this part on Schedule O, which is not shown here.

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • MATTHIAS BAUER

    TRUSTEE

    Total calculated
    $0
    Hours/week
    0.5

  • PAIGE MORRISON

    CHAIR

    Total calculated
    $0
    Hours/week
    1

  • KIRA BARTON

    TRUSTEE

    Total calculated
    $0
    Hours/week
    0.5

  • ROSA BUSHKUHL

    TRUSTEE

    Total calculated
    $0
    Hours/week
    0.5

  • PAUL FANSON

    VICE CHAIR

    Total calculated
    $0
    Hours/week
    1

  • SCHUYLER FERGUSON

    TRUSTEE

    Total calculated
    $0
    Hours/week
    0.5

  • MARK HOLTZ

    TREASURER

    Total calculated
    $0
    Hours/week
    1

  • WAYNE MILLETTE

    MEMBER AT LA

    Total calculated
    $0
    Hours/week
    0.5

  • NICK SCHMIDT

    TRUSTEE

    Total calculated
    $0
    Hours/week
    0.5

  • SUSAN WESTHOFF

    PRESIDENT/CE

    Total calculated
    $171,973
    From this org
    $140,012
    From related orgs
    $0
    Other
    $31,961
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $140,012
    Bonus
    not reported
    Other
    not reported
    Deferred
    $31,961
    Nontaxable benefits
    not reported
    Filer's total
    $171,973

  • ANDY BUCHSBAUM

    TRUSTEE

    Total calculated
    $0
    Hours/week
    0.5

  • SEAN ETHERIDGE

    TRUSTEE

    Total calculated
    $0
    Hours/week
    0.5

  • JEFFREY EVANS

    TRUSTEE

    Total calculated
    $0
    Hours/week
    0.5

  • SHOSHANNAH LENSKI

    SECRETARY

    Total calculated
    $0
    Hours/week
    1

  • ALAN P JESIEL

    TRUSTEE

    Total calculated
    $0
    Hours/week
    0.5

  • PRAVEENA RAMASWAMI

    TRUSTEE

    Total calculated
    $0
    Hours/week
    0.5

  • THERESE PERLOWSKI

    TRUSTEE

    Total calculated
    $0
    Hours/week
    0.5

  • MIKE SHRIBERG

    TRUSTEE

    Total calculated
    $0
    Hours/week
    0.5

  • KARTHIK RAMANI

    TRUSTEE

    Total calculated
    $0
    Hours/week
    0.5

  • ROBERT J ROCK

    TRUSTEE

    Total calculated
    $0
    Hours/week
    0.5

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. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $4,568,439
    Expenses
    $4,645,663
    Contributions
    $1,264,372
    Grants paid
    $0
  • 2023
    Revenue
    $4,770,869
    Expenses
    $3,953,492
    Contributions
    $1,542,742
    Grants paid
    $0
  • 2022
    Revenue
    $4,344,181
    Expenses
    $3,327,486
    Contributions
    $772,809
    Grants paid
    $0

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
    $3,859,721
    Expenses
    $2,817,471
    Assets (EOY)
    $8,897,248

  • 2020 · 990

    Revenue
    $1,982,882
    Expenses
    $1,677,021
    Assets (EOY)
    $8,341,268

  • 2019 · 990

    Revenue
    $1,659,672
    Expenses
    $2,336,547
    Assets (EOY)
    $8,062,838

  • 2018 · 990

    Revenue
    $2,610,294
    Expenses
    $2,643,613
    Assets (EOY)
    $8,232,143

  • 2017 · 990

    Revenue
    $4,820,257
    Expenses
    $2,996,128
    Assets (EOY)
    $8,303,468

  • 2016 · 990

    Revenue
    $3,292,948
    Expenses
    $2,977,708
    Assets (EOY)
    $6,458,431

  • 2015 · 990

    Revenue
    $2,930,800
    Expenses
    $2,802,673
    Assets (EOY)
    $6,115,298

  • 2014 · 990

    Revenue
    $2,644,505
    Expenses
    $2,567,260
    Assets (EOY)
    $5,858,222

  • 2013 · 990

    Revenue
    $2,544,496
    Expenses
    $2,389,235
    Assets (EOY)
    $5,766,287

  • 2012 · 990

    Revenue
    not reported
    Expenses
    $2,044,279
    Assets (EOY)
    $5,542,542

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

The 10 largest by cash amount. The API serves every itemized grant.

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

Listed as of 13 October 2026, under deductibility PC.

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 26 October 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.