Civic Intelligence

The Kalamazoo Aviation History Museum

EIN 38-2144402 • 501(c)3 • Portage, MI

View Organization Page

Profile

Ignite curiosity, celebrate innovation, and connect hisotry and science through past, present, and future dreams of flight.

6151 Portage RoadPortage, MI 49002

www.airzoo.org

Siviq Scores

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

Liabilities / Assets

36th percentile

0.08x

Higher debt load relative to assets than 36% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Source year 2024

Liabilities / Revenue

45th percentile

0.18x

Higher debt load relative to revenue than 45% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Source year 2024

Net Margin

48th percentile

3.4%

Higher net margin than 48% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Source year 2024

Top Officer Pay

67th percentile

$243,733

Higher top officer pay than 67% of similar nonprofits.

Top officer pay equals 3.0% of source-year revenue.

501(c)3 • $10M-$25M nonprofits • Source year 2024

Asset Growth

52nd percentile

5.0%

Faster asset growth than 52% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Annualized from 2023 to 2024

Revenue Growth

68th percentile

18%

Faster revenue growth than 68% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Annualized from 2023 to 2024

Balance Sheet
Liabilities / Assets36th percentile

Assets

Up

$19,182,319

Up $911,739 (+5.0%) from 2023

Liabilities

Up

$1,452,688

Up $91,718 (+6.7%) from 2023

Net Assets

Up

$17,729,631

Up $820,021 (+4.8%) from 2023

Operations
Liabilities / Revenue45th percentileNet Margin48th percentile

Revenue

Up

$8,151,032

Up $1,248,271 (+18%) from 2023

Expenses

Up

$7,875,383

Up $1,135,462 (+17%) from 2023

Net Income

Up

$275,649

Up $112,809 (+69%) from 2023

Trend Graphs

Balance Sheet Trend

Asset Growth52nd percentile

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

$30M$20M$10M$0Assets 2010: $24,584,501Liabilities 2010: $1,519,093Net Assets 2010: $23,065,4082010Assets 2011: $23,669,988Liabilities 2011: $2,237,699Net Assets 2011: $21,432,2892011Assets 2012: $22,162,555Liabilities 2012: $1,073,773Net Assets 2012: $21,088,7822012Assets 2013: $21,181,330Liabilities 2013: $1,068,496Net Assets 2013: $20,112,8342013Assets 2014: $20,385,347Liabilities 2014: $1,138,958Net Assets 2014: $19,246,3892014Assets 2015: $20,175,323Liabilities 2015: $1,473,325Net Assets 2015: $18,701,9982015Assets 2016: $19,272,975Liabilities 2016: $1,164,095Net Assets 2016: $18,108,8802016Assets 2017: $18,839,921Liabilities 2017: $874,056Net Assets 2017: $17,965,8652017Assets 2018: $17,503,285Liabilities 2018: $461,286Net Assets 2018: $17,041,9992018Assets 2019: $17,409,478Liabilities 2019: $502,673Net Assets 2019: $16,906,8052019Assets 2020: $17,058,166Liabilities 2020: $440,584Net Assets 2020: $16,617,5822020Assets 2021: $17,581,493Liabilities 2021: $592,090Net Assets 2021: $16,989,4032021Assets 2022: $18,548,506Liabilities 2022: $1,836,334Net Assets 2022: $16,712,1722022Assets 2023: $18,270,580Liabilities 2023: $1,360,970Net Assets 2023: $16,909,6102023Assets 2024: $19,182,319Liabilities 2024: $1,452,688Net Assets 2024: $17,729,6312024

Highlighted filing

2024

Assets$19,182,319
Liabilities$1,452,688
Net Assets$17,729,631
Open 2024 Filing

Operations Trend

Revenue Growth68th percentile

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

$10M$5.0M$0-$5.0MExpenses 2010: $4,407,7572010Revenue 2011: $2,678,721Expenses 2011: $4,298,073Net Income 2011: -$1,619,3522011Revenue 2012: $4,056,613Expenses 2012: $4,401,096Net Income 2012: -$344,4832012Revenue 2013: $3,513,611Expenses 2013: $4,491,135Net Income 2013: -$977,5242013Revenue 2014: $3,422,865Expenses 2014: $4,289,838Net Income 2014: -$866,9732014Revenue 2015: $3,721,051Expenses 2015: $4,265,167Net Income 2015: -$544,1162015Revenue 2016: $3,916,246Expenses 2016: $4,509,364Net Income 2016: -$593,1182016Revenue 2017: $4,597,729Expenses 2017: $4,740,744Net Income 2017: -$143,0152017Revenue 2018: $4,183,564Expenses 2018: $5,107,430Net Income 2018: -$923,8662018Revenue 2019: $5,000,936Expenses 2019: $5,136,130Net Income 2019: -$135,1942019Revenue 2020: $4,379,956Expenses 2020: $4,669,179Net Income 2020: -$289,2232020Revenue 2021: $5,451,685Expenses 2021: $5,079,864Net Income 2021: $371,8212021Revenue 2022: $5,668,255Expenses 2022: $5,897,592Net Income 2022: -$229,3372022Revenue 2023: $6,902,761Expenses 2023: $6,739,921Net Income 2023: $162,8402023Revenue 2024: $8,151,032Expenses 2024: $7,875,383Net Income 2024: $275,6492024

Highlighted filing

2024

Revenue$8,151,032
Expenses$7,875,383
Net Income$275,649
Open 2024 Filing

Filings

Most recent year

2024 • Form 990Detailed filing. Detailed filing data is available for this year.

Open filing
Assets
$19,182,319
Liabilities
$1,452,688
Net assets
$17,729,631
Revenue
$8,151,032
Expenses
$7,875,383
Net income
$275,649
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2024Detailed filing. Detailed filing data is available for this year.$19.2$1.45$17.7$8.15$7.88$0.28
2023Detailed filing. Detailed filing data is available for this year.$18.3$1.36$16.9$6.90$6.74$0.16
2022Detailed filing. Detailed filing data is available for this year.$18.5$1.84$16.7$5.67$5.90$0.23
2021Detailed filing. Detailed filing data is available for this year.$17.6$0.59$17.0$5.45$5.08$0.37
2020Detailed filing. Detailed filing data is available for this year.$17.1$0.44$16.6$4.38$4.67$0.29
2019Detailed filing. Detailed filing data is available for this year.$17.4$0.50$16.9$5.00$5.14$0.14
2018Detailed filing. Detailed filing data is available for this year.$17.5$0.46$17.0$4.18$5.11$0.92
2017Detailed filing. Detailed filing data is available for this year.$18.8$0.87$18.0$4.60$4.74$0.14
2016Detailed filing. Detailed filing data is available for this year.$19.3$1.16$18.1$3.92$4.51$0.59
2015Detailed filing. Detailed filing data is available for this year.$20.2$1.47$18.7$3.72$4.27$0.54
2014Detailed filing. Detailed filing data is available for this year.$20.4$1.14$19.2$3.42$4.29$0.87
2013Detailed filing. Detailed filing data is available for this year.$21.2$1.07$20.1$3.51$4.49$0.98
2012Summary only. Only limited summary data is available for this year.$22.2$1.07$21.1$4.06$4.40$0.34
2011Summary only. Only limited summary data is available for this year.$23.7$2.24$21.4$2.68$4.30$1.62
2010Facts available. Structured filing facts are available, but richer extracted sections are limited.$24.6$1.52$23.1$4.41
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2024 to Dec 31, 2024
Signed
Nov 13, 2025
Return Version
2024v5.2
Gross Receipts
$8,594,568
Mission and Program Overview

Mission

Preserving the legacy of flight for present and future generations

Ignite curiosity, celebrate innovation, and connect hisotry and science through past, present, and future dreams of flight.

Balance Sheet Detail
LineBeginningEndChange
Assets
Land, Buildings, and Equipment, Net$7,487,906$7,488,580▲ $674
Savings and Temporary Cash Investments$1,608,503$2,447,762▲ $839,259
Inventories for Sale or Use$195,323$251,310▲ $55,987
Prepaid Expenses and Deferred Charges$141,302$147,024▲ $5,722
Pledges and Grants Receivable$0$102,088▲ $102,088
Accounts Receivable$124,418$55,095▼ $69,323
Cash and Non-Interest-Bearing Accounts$5,100$5,200▲ $100
Total Assets$18,270,580$19,182,319▲ $911,739
Other Assets Total$8,708,028$8,685,260▼ $22,768
Liabilities
Accounts Payable and Accrued Expenses$662,150$819,424▲ $157,274
Other Liabilities$546,037$468,099▼ $77,938
Deferred Revenue$152,783$165,165▲ $12,382
Total Liabilities$1,360,970$1,452,688▲ $91,718
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$16,908,610$17,240,810▲ $332,200
Net Assets With Donor Restrictions$1,000$488,821▲ $487,821
Total Net Assets Fund Balance$16,909,610$17,729,631▲ $820,021
Total Liabilities and Net Assets / Fund Balance$18,270,580$19,182,319▲ $911,739

Asset Categories

AssetBook ValueDepreciationBasis
Buildings$4,615,220$13,197,019$17,812,239
Equipment$1,027,568$4,413,601$5,441,169
Land$1,558,276-$1,558,276
Other Land Buildings$287,516-$287,516
Other Assets Org$19,163--

Endowment Activity

PeriodBeginningContrib.Gain/LossOther UsesEnd
2024$79,989,757-▲ $8,737,238$3,333,000$84,942,915
2023$65,526,415-▲ $18,071,918$3,164,004$79,989,757
2022$89,123,049-▼ $20,148,455$3,015,107$65,526,415
2021$79,492,780-▲ $13,149,803$3,212,175$89,339,104
2020$63,020,808$2,000,000▲ $17,159,133$2,733,888$79,373,049
Compensation and Service Providers
Top Officer Pay67th percentile

Employees

NameTitleFull / Part TimeBaseOtherTotal
Troy a ThrashPresident/CEOFT$220,694$23,039$243,733
David UllreyDirector of FinanceFT$84,941-$84,941

Board Members and Trustees

NameTitle
Jerry CulpChairperson
Donald R ParfetVice-chairperson
Brian MullallyTrustee
Clarence LloydTrustee
David J CampbellTrustee
Heather OestrikeTrustee
Jamie PleuneTrustee
Johnny EdwardsTrustee
Judy K JolliffeTrustee
Kelly ParrishTrustee
Marc a SchupanTrustee
Mark IveyTrustee
Preston ParishTrustee
Randall W EbertsTrustee
Rita RaichoudhuriTrustee
Janice M BrownSecretary
Cliff MulderTreasurer
Revenue and Support

Revenue Composition

Contributions and Grants
$4,882,469
Program Service Revenue
$2,175,736
Investment Income
$70,596
Other Revenue
$1,022,231
All Other Contributions
$1,386,108
Change in Net Assets
$275,649

Audited Revenue Reconciliation

Revenue per Audited Statements
$8,151,032
Revenue Not Reported on Financial Statements
$0
Revenue Not Reported on Form 990
$927,418
Total Revenue per Audited Statements
$9,078,450
Total Revenue per Form 990
$8,151,032
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Other Expenses$4,162,709
Salaries, Compensation, and Employee Benefits$3,712,674
Total Fundraising Expense$319,517
Grants and Similar Amounts Paid$0
Professional Fundraising Fees$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Other Salaries and Wages$2,167,189$487,075$151,871$2,806,135
All Other Expenses$980,415$63,262$2,076$1,045,753
Depreciation Depletion$828,319$60,813$4,915$894,047
Fees for Services Other$509,739$116,406$21,278$647,423
Advertising-$403,538$7,382$410,920
Occupancy$325,307$28,009$7,002$360,318
Other Employee Benefits$228,164$86,442$33,196$347,802
Current Officers, Directors, Trustees, and Key Employees$55,750$217,176$55,750$328,676
Payroll Taxes$162,901$50,089$15,215$228,205
Insurance$163,550$7,584$6,501$177,635
Travel$82,219$19,065$9,954$111,238
Fees for Services Accounting-$50,725-$50,725
Other Expenses$28,766$0$0$28,766
Fees for Services Legal-$4,451-$4,451
Pension Plan Contributions$1,149$540$167$1,856
Total Functional Expenses$5,933,746$1,622,120$319,517$7,875,383

Audited Expense Reconciliation

Line ItemAmount
Total Expenses per Audited Statements$8,258,429
Expenses per Audited Statements$7,875,383
Total Expenses per Form 990$7,875,383
Expenses Not Reported on Form 990$383,046
Expenses Not Reported on Financial Statements$0
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
Deferred Lease Liability$468,099
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
Yes
Key decisions subject to board approval
No
Management duties delegated
No

Governance Explanations

Form 990, Part VI, Section A, Line 2

“Don parfet & randy eberts have a business relationship.”

Form 990, Part VI, Section B, Line 11B

“The director of finance & president & ceo review prior to filing. A copy of the complete 990 is circulated to the board prior to filing for their records.”

Form 990, Part VI, Section B, Line 15

“Aam salary survey comparison and board approval used for executive director; aam salary survey & local information used for other key employees. This process was last undertaken in 2021 for 2022.”

Form 990, Part VI, Section C, Line 19

“Documents open for public inspection are available upon request.”

Filing and Contact Details

Filer

Filer Name
The Kalamazoo Aviation History Museum
EIN
38-2144402
Phone
2693826555
Address
6151 PORTAGE ROAD, PORTAGE, MI 49002
Doing Business As
Air Zoo

Signing Officer

Name
Jerry Culp
Title
Chairperson
Phone
2693826555
Signed
2025-11-13
Discuss with paid preparer
Yes

Organization Details

Principal Officer
Troy a Thrash
Formed
1977
Legal Domicile
Mi
Voting Board Members
15
Independent Board Members
15
Employees
152
Volunteers
150

Preparer

Firm
Plante & Moran Pllc
Address
750 TRADE CENTRE WAY STE 300, PORTAGE, MI 49002
Preparer
David Lowenthal
Phone
2695674500
Supplemental Narrative

Additional Explanations

FORM 990, PART XI, LINE 9:

“Transfer of restricted grants from air zoo legacy foundation 478,582.”

FORM 990, PART XII, LINE 2C:

“There has not been a change in process since the prior year.”

Financial Statement Notes

PART III, LINE 4:

“Aircraft and artifacts preserving the legacy of flight”

PART V, LINE 4:

“The endowment fund income is used in the manner directed by the donors when the fund was established, to support the charitable and educational activities of the kalamazoo aviation history museum (air zoo).”

PART XI, LINE 2D - OTHER ADJUSTMENTS:

“Cost of goods sold 383,046. Transfer of restricted grants from air zoo legacy foundation 478,582.”

PART XII, LINE 2D - OTHER ADJUSTMENTS:

“Cost of goods sold 383,046.”

Raw XML AppendixShowing 400 of 826 raw XML fields

This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.

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IRS990/Desc0THE AIR ZOO IS A NATIONALLY ACCLAIMED, SMITHSONIAN-AFFILIATED, AEROSPACE AND SCIENCE MUSEUM BOASTING A RENOWNED COLLECTION OF OVER 100 RARE AND HISTORICALLY SIGNIFICANT AIRCRAFT, AND MORE THAN 100,000 UNIQUE ARTIFACTS, DISPLAYS AND EXHIBITS SHOWCASING HISTORY, SCIENCE, AND TECHNOLOGY. THE AIR ZOO STANDS APART FROM SIMILAR MUSEUMS AND LEARNING CENTERS OF ITS KIND, WITH A KEEN FOCUS ON HANDS-ON LEARNING AND ENGAGING EDUCATIONAL PROGRAMS. OUR FACILITIES INCLUDE MULTIPLE CLASSROOMS FOR INTERACTIVE LESSONS, AN UPDATED THEATER, STATE OF THE ART FLIGHT SIMULATORS, AND AN EXCITING INDOOR AMUSEMENT PARK. THE MUSEUM'S GROWING COLLECTION OF PERMANENT EXHIBITS HIGHLIGHT THE DIVERSE CONTRIBUTIONS FROM MEN AND WOMEN OF AEROSPACE HISTORY. THE AIR ZOO IS ALSO A NATIONAL LEADER IN LONG-TERM LOST OR DAMAGED HISTORICAL AIRCRAFT RESTORATION. THROUGH OUR ACTIVE AND INNOVATIVE RESTORATION PROCESS, OUR GUESTS ARE ABLE TO WITNESS AND EVEN PARTICIPATE IN THE REBUILDING OF PLANES LONG DESTROYED OR LOST. WITH OUR STRONG FOCUS ON EDUCATION, THE AIR ZOO IS A UNIQUE RESOURCE FOR ORGANIZATIONS, STUDENTS AND TEACHERS IN OUR COMMUNITY. THROUGH A FOCUSED EDUCATION DEPARTMENT, THE AIR ZOO PROVIDES COUNTLESS EDUCATIONAL PROGRAMS AND CAMPS.
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IRS990/Form990PartVIISectionAGrp/TitleTxt6TRUSTEE
IRS990/Form990PartVIISectionAGrp/TitleTxt7TRUSTEE
IRS990/Form990PartVIISectionAGrp/TitleTxt8TRUSTEE
IRS990/Form990PartVIISectionAGrp/TitleTxt9TRUSTEE
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