Civic Intelligence

Ann Arbor Hands-On Museum

EIN 38-2236345 • 501(c)3 • Ann Arbor, MI

Profile

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.

220 East Ann StreetAnn Arbor, MI 48104-1445

www.aahom.org

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

39th percentile

0.09x

Higher debt load relative to assets than 39% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Source year 2025

Liabilities / Revenue

51st percentile

0.23x

Higher debt load relative to revenue than 51% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Source year 2025

Net Margin

31st percentile

-1.7%

Higher net margin than 31% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Source year 2025

Top Officer Pay

45th percentile

$171,973

Higher top officer pay than 45% of similar nonprofits.

Top officer pay equals 3.8% of source-year revenue.

501(c)3 • $10M-$25M nonprofits • Source year 2025

Asset Growth

31st percentile

-0.8%

Faster asset growth than 31% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Annualized from 2024 to 2025

Revenue Growth

26th percentile

-4.2%

Faster revenue growth than 26% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Annualized from 2024 to 2025

Assets

Down

$11,373,109

Down $86,701 (-0.8%) from 2024

Liabilities

Down

$1,066,060

Down $9,477 (-0.9%) from 2024

Net Assets

Down

$10,307,049

Down $77,224 (-0.7%) from 2024

Revenue

Down

$4,568,439

Down $202,430 (-4.2%) from 2024

Expenses

Up

$4,645,663

Up $692,171 (+18%) from 2024

Net Income

Down

-$77,224

Down $894,601 (-109%) from 2024

Trend Graphs

Balance Sheet Trend

Grouped bars show assets, liabilities, and net assets across loaded filings.

$15M$10M$5.0M$0Assets 2010: $5,015,233Liabilities 2010: $340,383Net Assets 2010: $4,674,8502010Assets 2011: $5,066,592Liabilities 2011: $346,300Net Assets 2011: $4,720,2922011Assets 2012: $5,470,703Liabilities 2012: $283,607Net Assets 2012: $5,187,0962012Assets 2013: $5,542,542Liabilities 2013: $144,151Net Assets 2013: $5,398,3912013Assets 2014: $5,766,287Liabilities 2014: $212,635Net Assets 2014: $5,553,6522014Assets 2015: $5,858,222Liabilities 2015: $227,349Net Assets 2015: $5,630,8732015Assets 2016: $6,115,298Liabilities 2016: $270,564Net Assets 2016: $5,844,7342016Assets 2017: $6,458,431Liabilities 2017: $298,481Net Assets 2017: $6,159,9502017Assets 2018: $8,303,468Liabilities 2018: $319,389Net Assets 2018: $7,984,0792018Assets 2019: $8,232,143Liabilities 2019: $280,082Net Assets 2019: $7,952,0612019Assets 2020: $8,062,838Liabilities 2020: $781,730Net Assets 2020: $7,281,1082020Assets 2021: $8,341,268Liabilities 2021: $727,825Net Assets 2021: $7,613,4432021Assets 2022: $8,897,248Liabilities 2022: $241,555Net Assets 2022: $8,655,6932022Assets 2023: $10,640,979Liabilities 2023: $986,649Net Assets 2023: $9,654,3302023Assets 2024: $11,459,810Liabilities 2024: $1,075,537Net Assets 2024: $10,384,2732024Assets 2025: $11,373,109Liabilities 2025: $1,066,060Net Assets 2025: $10,307,0492025

Highlighted filing

2025

Assets$11,373,109
Liabilities$1,066,060
Net Assets$10,307,049

Operations Trend

Revenue, expenses, and net income by year, with the latest filing highlighted.

$6.0M$4.0M$2.0M$0-$2.0MExpenses 2010: $2,014,5682010Expenses 2011: $1,970,6802011Expenses 2012: $2,024,5392012Revenue 2013: $2,255,574Expenses 2013: $2,044,279Net Income 2013: $211,2952013Revenue 2014: $2,544,496Expenses 2014: $2,389,235Net Income 2014: $155,2612014Revenue 2015: $2,644,505Expenses 2015: $2,567,260Net Income 2015: $77,2452015Revenue 2016: $2,930,800Expenses 2016: $2,802,673Net Income 2016: $128,1272016Revenue 2017: $3,292,948Expenses 2017: $2,977,708Net Income 2017: $315,2402017Revenue 2018: $4,820,257Expenses 2018: $2,996,128Net Income 2018: $1,824,1292018Revenue 2019: $2,610,294Expenses 2019: $2,643,613Net Income 2019: -$33,3192019Revenue 2020: $1,659,672Expenses 2020: $2,336,547Net Income 2020: -$676,8752020Revenue 2021: $1,982,882Expenses 2021: $1,677,021Net Income 2021: $305,8612021Revenue 2022: $3,859,721Expenses 2022: $2,817,471Net Income 2022: $1,042,2502022Revenue 2023: $4,344,181Expenses 2023: $3,327,486Net Income 2023: $1,016,6952023Revenue 2024: $4,770,869Expenses 2024: $3,953,492Net Income 2024: $817,3772024Revenue 2025: $4,568,439Expenses 2025: $4,645,663Net Income 2025: -$77,2242025

Highlighted filing

2025

Revenue$4,568,439
Expenses$4,645,663
Net Income-$77,224

Filings

Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2025Detailed filing. Detailed filing data is available for this year.$11.4$1.07$10.3$4.57$4.65$0.08
2024Detailed filing. Detailed filing data is available for this year.$11.5$1.08$10.4$4.77$3.95$0.82
2023Detailed filing. Detailed filing data is available for this year.$10.6$0.99$9.65$4.34$3.33$1.02
2022Facts available. Structured filing facts are available, but richer extracted sections are limited.$8.90$0.24$8.66$3.86$2.82$1.04
2021Detailed filing. Detailed filing data is available for this year.$8.34$0.73$7.61$1.98$1.68$0.31
2020Detailed filing. Detailed filing data is available for this year.$8.06$0.78$7.28$1.66$2.34$0.68
2019Detailed filing. Detailed filing data is available for this year.$8.23$0.28$7.95$2.61$2.64$0.03
2018Detailed filing. Detailed filing data is available for this year.$8.30$0.32$7.98$4.82$3.00$1.82
2017Detailed filing. Detailed filing data is available for this year.$6.46$0.30$6.16$3.29$2.98$0.32
2016Detailed filing. Detailed filing data is available for this year.$6.12$0.27$5.84$2.93$2.80$0.13
2015Detailed filing. Detailed filing data is available for this year.$5.86$0.23$5.63$2.64$2.57$0.08
2014Detailed filing. Detailed filing data is available for this year.$5.77$0.21$5.55$2.54$2.39$0.16
2013Facts available. Structured filing facts are available, but richer extracted sections are limited.$5.54$0.14$5.40$2.26$2.04$0.21
2012Facts available. Structured filing facts are available, but richer extracted sections are limited.$5.47$0.28$5.19$2.02
2011Facts available. Structured filing facts are available, but richer extracted sections are limited.$5.07$0.35$4.72$1.97
2010Facts available. Structured filing facts are available, but richer extracted sections are limited.$5.02$0.34$4.67$2.01
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Oct 1, 2024 to Sep 30, 2025
Signed
Feb 12, 2026
Return Version
2024v5.0
Gross Receipts
$4,756,012
Mission and Program Overview

Mission

To inspire people to discover the wonder of science, technology, math, art, and engineering and to be the leader in imaginative learning experiences.

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.

Balance Sheet Detail
LineBeginningEndChange
Assets
Savings and Temporary Cash Investments$5,674,566$6,077,670▲ $403,104
Land, Buildings, and Equipment, Net$4,206,827$4,091,734▼ $115,093
Pledges and Grants Receivable$255,846$455,696▲ $199,850
Accounts Receivable$378,110$85,685▼ $292,425
Inventories for Sale or Use$48,102$61,396▲ $13,294
Prepaid Expenses and Deferred Charges$14,001$22,361▲ $8,360
Investments in Publicly Traded Securities$11,584$11,530▼ $54
Cash and Non-Interest-Bearing Accounts$268,249$4,645▼ $263,604
Total Assets$11,459,810$11,373,109▼ $86,701
Other Assets Total$602,525$562,392▼ $40,133
Liabilities
Accounts Payable and Accrued Expenses$350,786$395,722▲ $44,936
Deferred Revenue$371,754$376,704▲ $4,950
Other Liabilities$352,997$293,634▼ $59,363
Total Liabilities$1,075,537$1,066,060▼ $9,477
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$9,021,978$8,839,461▼ $182,517
Net Assets With Donor Restrictions$1,362,295$1,467,588▲ $105,293
Total Net Assets Fund Balance$10,384,273$10,307,049▼ $77,224
Total Liabilities and Net Assets / Fund Balance$11,459,810$11,373,109▼ $86,701

Asset Categories

AssetBook ValueDepreciationBasis
Buildings$1,447,489$2,891,274$4,338,763
Equipment$1,138,277$2,085,141$3,223,418
Leasehold Improvements$1,241,468$1,059,019$2,300,487
Land$264,500-$264,500
Compensation and Service Providers

Employees

NameTitleFull / Part TimeBaseOtherTotal
Susan WesthoffPresident/ceFT$140,012$31,961$171,973
Susan WesthoffPresident/CEO-$140,012$31,961$171,973

Board Members and Trustees

Revenue and Support

Revenue Composition

Contributions and Grants
$1,264,372
Program Service Revenue
$2,747,971
Investment Income
$217,369
Other Revenue
$338,727
All Other Contributions
$1,255,022
Change in Net Assets
$-77,224

Audited Revenue Reconciliation

Revenue per Audited Statements
$4,568,439
Total Revenue per Audited Statements
$4,568,439
Total Revenue per Form 990
$4,568,439
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Salaries, Compensation, and Employee Benefits$2,740,328
Other Expenses$1,905,335
Total Fundraising Expense$358,525
Grants and Similar Amounts Paid$0
Professional Fundraising Fees$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Other Salaries and Wages$1,468,562$422,588$222,601$2,113,751
Depreciation Depletion$477,272$36,268$5,182$518,722
Occupancy$232,916$3,956$3,800$240,672
Other Employee Benefits$129,122$91,927$14,558$235,607
Payroll Taxes$123,773$46,791$15,362$185,926
Office Expenses$90,612$37,137$18,630$146,379
Current Officers, Directors, Trustees, and Key Employees$140,012--$140,012
Fees for Services Other$13,574$113,867$4,700$132,141
Other Expenses$89,440$529$1,785$91,754
All Other Expenses$14,385-$51,795$66,180
Insurance$54,224$10,433$907$65,564
Pension Plan Contributions$35,640$25,374$4,018$65,032
Information Technology$47,901$11,758$1,724$61,383
Advertising$29,241$11,763$4,998$46,002
Travel$36,513$2,760$1,920$41,193
Fees for Services Accounting-$17,500-$17,500
Conferences and Meetings$7,996$5,755$2,274$16,025
Fees for Service Investment Mgmnt Fees-$4,914-$4,914
Total Functional Expenses$3,425,232$861,906$358,525$4,645,663

Audited Expense Reconciliation

Line ItemAmount
Expenses per Audited Statements$4,645,663
Total Expenses per Audited Statements$4,645,663
Total Expenses per Form 990$4,645,663
Fundraising, Events, and Gaming
Fundraising activities
No
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Professional Fundraising Fees$0
Political and Lobbying Activity
Political campaign activity
No
Lobbying activity
No
Subject to proxy tax
No
Debt and Bond Financing

Other Reported Liabilities

LiabilityAmount
Operating Lease Liability$293,634
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
No
Annual disclosure for covered persons
Yes
Audit committee
Yes
Backup withholding compliance
Yes
Business relationship with 35% controlled entity
No
Business relationship with family members
No
Business relationship with organization members
No
Material changes to governing documents
No
Compensation from other sources disclosed
No
CEO compensation reviewed
Yes
Other officer compensation reviewed
Yes
Conflict-of-interest policy
Yes
Audited financial statements prepared
No
Key decisions subject to board approval
No
Management duties delegated
No

Governance Explanations

Form 990, Page 6, Part VI, Line 11B

The organization is sent a preliminary draft of form 990, at which time it is reviewed by management. Questions, comments, or changes are relayed back to the preparer and the proper changes are made before the final draft is approved and filed.

Form 990, Page 6, Part VI, Line 12C

Staff and trustees shall sign a form declaring no conflict of interest, or make prompt and full disclosure on the form any potential situation that may involve a conflict of interest.

Form 990, Page 6, Part VI, Line 15A

The board of trustees uses a salary survey from the michigan nonprofit association as well as industry salary reports from astc, acm, and anca that provides information for area nonprofits in washtenaw county as a determination for the salary and benefits of the ceo/president.

Form 990, Page 6, Part VI, Line 15B

The ceo uses the michigan nonprofit association salary survey, as well as industry salary survey reports, including astc, acm and anca, as a base for compensation comparison and support for key employees.

Form 990, Page 6, Part VI, Line 19

Upon request of individuals

Filing and Contact Details

Filer

Filer Name
Ann Arbor Hands-on Museum
EIN
38-2236345
Phone
7349955439
Address
220 EAST ANN STREET, ANN ARBOR, MI 48104-1445

Signing Officer

Name
Thomas Butler
Title
CFO
Phone
7349955439
Signed
2026-02-12
Discuss with paid preparer
Yes

Organization Details

Principal Officer
Susan Westhoff
Formed
1979
Legal Domicile
Mi
Voting Board Members
19
Independent Board Members
19
Employees
81
Volunteers
500

Preparer

Firm
Willis & Jurasek Pc Cpas
Address
4100 SPRING ARBOR ROAD, JACKSON, MI 49201-9306
Preparer
Nancy L Barton CPA
Phone
5177888660
Supplemental Narrative

Additional Explanations

FORM 990 - ORGANIZATION'S 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.

Form 990, Page 1, Part I, Line 6

Volunteers include trustees as well as community members who contribute their time and talents through wildlife care, graphic design, land management, preparing materials for schools, and serving on-site at the nature center or museum for program support.

Form 990, Page 2, Part III, Line 4A

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.

Financial Statement Notes

Schedule D, Page 3, Part X

Professional standards require an analysis of uncertain tax positions for the purpose of determining whether benefits associated with those positions may be recognized for financial statement purposes. Based on the analysis, the organization has determined that it has no material uncertain tax positions for which the benefits may not be recognized nor for which disclosure is required.

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IRS990/Desc0THE 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.
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