Civic Intelligence

Stanford Aviation Association

EIN 51-0188222 • 501(c)3 • Stanford, CA

Profile

Foster and promote the advancement of aviation.

PO Box 20488Stanford, CA 94309

www.flystanford.com

Siviq Scores

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

Liabilities / Assets

24th percentile

0.00x

Higher debt load relative to assets than 24% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2024

Liabilities / Revenue

26th percentile

0.01x

Higher debt load relative to revenue than 26% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2024

Net Margin

77th percentile

26%

Higher net margin than 77% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2024

Top Officer Pay

40th percentile

$0

Higher top officer pay than 40% of similar nonprofits.

Top officer pay equals 0.0% of source-year revenue.

501(c)3 • $1M-$5M nonprofits • Source year 2024

Asset Growth

65th percentile

9.6%

Faster asset growth than 65% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2023 to 2024

Revenue Growth

64th percentile

17%

Faster revenue growth than 64% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2023 to 2024

Balance Sheet
Liabilities / Assets24th percentile

Assets

Up

$1,385,910

Up $121,761 (+9.6%) from 2023

Liabilities

Up

$2,544

Up $2,544 from 2023

Net Assets

Up

$1,383,366

Up $119,217 (+9.4%) from 2023

Operations
Liabilities / Revenue26th percentileNet Margin77th percentile

Revenue

Up

$464,454

Up $66,246 (+17%) from 2023

Expenses

Up

$345,237

Up $75,613 (+28%) from 2023

Net Income

Down

$119,217

Down $9,367 (-7.3%) from 2023

Trend Graphs

Balance Sheet Trend

Asset Growth65th percentile

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

$1.5M$1.0M$500K$0-$500KAssets 2010: $485,220Liabilities 2010: $283Net Assets 2010: $484,9372010Assets 2011: $460,675Liabilities 2011: $253Net Assets 2011: $460,4222011Assets 2012: $593,836Liabilities 2012: $305Net Assets 2012: $593,5312012Assets 2013: $613,570Liabilities 2013: $291Net Assets 2013: $613,2792013Assets 2014: $653,232Liabilities 2014: $212Net Assets 2014: $653,0202014Assets 2015: $687,243Liabilities 2015: $126Net Assets 2015: $687,1172015Assets 2016: $833,789Liabilities 2016: $300Net Assets 2016: $833,4892016Assets 2017: $927,789Liabilities 2017: $341Net Assets 2017: $927,4482017Assets 2018: $804,782Liabilities 2018: -$137Net Assets 2018: $804,9192018Assets 2019: $870,354Liabilities 2019: -$205Net Assets 2019: $870,5592019Assets 2020: $911,431Liabilities 2020: -$35Net Assets 2020: $911,4662020Assets 2021: $1,033,858Liabilities 2021: $420Net Assets 2021: $1,033,4382021Assets 2022: $1,136,432Liabilities 2022: $2Net Assets 2022: $1,136,4302022Assets 2023: $1,264,149Liabilities 2023: $0Net Assets 2023: $1,264,1492023Assets 2024: $1,385,910Liabilities 2024: $2,544Net Assets 2024: $1,383,3662024

Highlighted filing

2024

Assets$1,385,910
Liabilities$2,544
Net Assets$1,383,366
Open 2024 Filing

Operations Trend

Revenue Growth64th percentile

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

$800K$600K$400K$200K$0-$200KExpenses 2010: $619,4452010Revenue 2011: $444,178Expenses 2011: $468,694Net Income 2011: -$24,5162011Expenses 2012: $263,2502012Revenue 2013: $406,071Expenses 2013: $386,323Net Income 2013: $19,7482013Revenue 2014: $389,449Expenses 2014: $349,708Net Income 2014: $39,7412014Revenue 2015: $377,438Expenses 2015: $343,397Net Income 2015: $34,0412015Revenue 2016: $430,666Expenses 2016: $284,294Net Income 2016: $146,3722016Revenue 2017: $412,488Expenses 2017: $318,529Net Income 2017: $93,9592017Revenue 2018: $344,554Expenses 2018: $467,083Net Income 2018: -$122,5292018Revenue 2019: $303,390Expenses 2019: $237,750Net Income 2019: $65,6402019Revenue 2020: $255,535Expenses 2020: $214,628Net Income 2020: $40,9072020Revenue 2021: $465,741Expenses 2021: $343,769Net Income 2021: $121,9722021Revenue 2022: $449,977Expenses 2022: $346,985Net Income 2022: $102,9922022Revenue 2023: $398,208Expenses 2023: $269,624Net Income 2023: $128,5842023Revenue 2024: $464,454Expenses 2024: $345,237Net Income 2024: $119,2172024

Highlighted filing

2024

Revenue$464,454
Expenses$345,237
Net Income$119,217
Open 2024 Filing

Filings

Most recent year

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

Open filing
Assets
$1,385,910
Liabilities
$2,544
Net assets
$1,383,366
Revenue
$464,454
Expenses
$345,237
Net income
$119,217
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2024Detailed filing. Detailed filing data is available for this year.$1.39$0.00$1.38$0.46$0.35$0.12
2023Detailed filing. Detailed filing data is available for this year.$1.26$0.00$1.26$0.40$0.27$0.13
2022Detailed filing. Detailed filing data is available for this year.$1.14$0.00$1.14$0.45$0.35$0.10
2021Detailed filing. Detailed filing data is available for this year.$1.03$0.00$1.03$0.47$0.34$0.12
2020Detailed filing. Detailed filing data is available for this year.$0.91$0.00$0.91$0.26$0.21$0.04
2019Detailed filing. Detailed filing data is available for this year.$0.87$0.00$0.87$0.30$0.24$0.07
2018Detailed filing. Detailed filing data is available for this year.$0.80$0.00$0.80$0.34$0.47$0.12
2017Detailed filing. Detailed filing data is available for this year.$0.93$0.00$0.93$0.41$0.32$0.09
2016Detailed filing. Detailed filing data is available for this year.$0.83$0.00$0.83$0.43$0.28$0.15
2015Detailed filing. Detailed filing data is available for this year.$0.69$0.00$0.69$0.38$0.34$0.03
2014Detailed filing. Detailed filing data is available for this year.$0.65$0.00$0.65$0.39$0.35$0.04
2013Detailed filing. Detailed filing data is available for this year.$0.61$0.00$0.61$0.41$0.39$0.02
2012Facts available. Structured filing facts are available, but richer extracted sections are limited.$0.59$0.00$0.59$0.26
2011Summary only. Only limited summary data is available for this year.$0.46$0.00$0.46$0.44$0.47$0.02
2010Facts available. Structured filing facts are available, but richer extracted sections are limited.$0.49$0.00$0.48$0.62
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2024 to Dec 31, 2024
Signed
Jan 19, 2026
Return Version
2024v5.5
Gross Receipts
$464,454
Mission and Program Overview

Mission

Foster and promote the advancement of aviation.

Foster and promote the advancement of aviation

Balance Sheet Detail
LineBeginningEndChange
Assets
Rtn Earn Endowment Incm Other Fnds$1,264,149$1,383,366▲ $119,217
Cash and Non-Interest-Bearing Accounts$278,790$715,921▲ $437,131
Savings and Temporary Cash Investments$984,166$668,796▼ $315,370
Land, Buildings, and Equipment, Net$0$0→ $0
Pd in Cap Srpls Land Bldg Eqp Fund$0$0→ $0
Cap Stk Tr Prin Current Funds$0$0→ $0
Total Assets$1,264,149$1,385,910▲ $121,761
Other Assets Total$1,193$1,193→ $0
Liabilities
Other Liabilities$0$2,544▲ $2,544
Total Liabilities$0$2,544▲ $2,544
Net Assets / Fund Balance
Total Net Assets Fund Balance$1,264,149$1,383,366▲ $119,217
Total Liabilities and Net Assets / Fund Balance$1,264,149$1,385,910▲ $121,761

Asset Categories

AssetBook ValueDepreciationBasis
Other Land Buildings$0$39,212$39,212
Compensation and Service Providers
Top Officer Pay40th percentile

Board Members and Trustees

NameTitle
Johanna DolanPresident
Bert J PostmaC.f.o.
Peter GodefrooijSecretary
Revenue and Support

Revenue Composition

Contributions and Grants
$0
Program Service Revenue
$368,268
Investment Income
$61,740
Other Revenue
$34,446
Change in Net Assets
$119,217
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Other Expenses$345,237
Grants and Similar Amounts Paid$0
Professional Fundraising Fees$0
Salaries, Compensation, and Employee Benefits$0
Total Fundraising Expense$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Insurance-$52,006-$52,006
Occupancy$30,819--$30,819
All Other Expenses$25,022$5,362-$30,384
Other Expenses$27,493--$27,493
Office Expenses-$16,310-$16,310
Advertising$10,846--$10,846
Fees for Services Accounting-$2,600-$2,600
Total Functional Expenses$268,959$76,278$0$345,237
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
Insider Transactions and Loans

Interested-Person Transactions

Interested PartyRelationshipDescriptionShared RevenueAmount
Bert Postma CFOOfficer and Stock HolderSTANFORD AVIATION ASSOCIATION COLLECTS FEES FOR AIRCRAFT OWNERS FOR MAKING THEIR AIRCRAFT AVAILABLE FOR AND LEASING / RENTING THEM TO STUDENTS/MEMBERS. PLANE RENTAL COSTS ARE A FUNCTION OF FACTORS SUCH AS: AIRCRAFT VALUE, DEPRECIATION / REPLACEMENT COSTS, SUPPORT, GOVERNMENT FEES, AND OPERATING EXPENSES SUCH AS ENGINE RESERVES, MAINTENANCE AND REPAIR, AND USAGE.No-
Debt and Bond Financing

Other Reported Liabilities

LiabilityAmount
Other Liabilities - Cfi Agency$2,544
Governance and Compliance

Governance Checklist

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

Governance Explanations

Form 990, Part VI, Section A, Line 8B

“There are no committees with authority to act on the behalf of stanford aviation association.”

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

“Stanford aviation association provides a copy of the tax return to the board of directors for review before form 990 is filed.”

Form 990, Part VI, Section C, Line 19

“Stanford aviation association makes its governing documents and financial statements available to the public upon request.”

Filing and Contact Details

Filer

Filer Name
Stanford Aviation Association
EIN
51-0188222
Phone
6508582200
Address
PO BOX 20488, STANFORD, CA 94309
Doing Business As
Stanford Flying Club

Signing Officer

Name
Bert J Postma
Title
CFO
Phone
6508582200
Signed
2026-01-19
Discuss with paid preparer
Yes

Organization Details

Principal Officer
Johanna Dolan
Formed
1977
Legal Domicile
CA
Voting Board Members
3
Independent Board Members
3
Employees
0
Volunteers
0

Preparer

Firm
MACIAS GINI & O'CONNELL LLP
Address
2570 W EL CAMINO REAL 600, MOUNTAIN VIEW, CA 94040
Preparer
Fernanda Amaral
Phone
6502091800
Raw XML Appendix344 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.

Path#Value
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IRS990/AllOtherExpensesGrp/TotalAmt030384
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IRS990/ChangeToOrgDocumentsInd00
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IRS990/CollectionsOfArtInd00
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IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt0447830
IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt0464616
IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt0249650
IRS990ScheduleA/Total509Grp/TotalAmt01541154
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IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt0449977
IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt0465741
IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt0255535
IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt01569461
IRS990/ScheduleBRequiredInd00
IRS990ScheduleD/OtherLandBuildingsGrp/BookValueAmt00
IRS990ScheduleD/OtherLandBuildingsGrp/DepreciationAmt039212
IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt039212
IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt02544
IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc0OTHER LIABILITIES - CFI AGENCY
IRS990ScheduleD/TotalBookValueLandBuildingsAmt00
IRS990ScheduleD/TotalLiabilityAmt02544
IRS990/ScheduleJRequiredInd00
IRS990ScheduleL/BusTrInvolveInterestedPrsnGrp/NameOfInterested/PersonNm0BERT POSTMA CFO
IRS990ScheduleL/BusTrInvolveInterestedPrsnGrp/RelationshipDescriptionTxt0OFFICER AND STOCK HOLDER
IRS990ScheduleL/BusTrInvolveInterestedPrsnGrp/SharingOfRevenuesInd00
IRS990ScheduleL/BusTrInvolveInterestedPrsnGrp/TransactionDesc0STANFORD AVIATION ASSOCIATION COLLECTS FEES FOR AIRCRAFT OWNERS FOR MAKING THEIR AIRCRAFT AVAILABLE FOR AND LEASING / RENTING THEM TO STUDENTS/MEMBERS. PLANE RENTAL COSTS ARE A FUNCTION OF FACTORS SUCH AS: AIRCRAFT VALUE, DEPRECIATION / REPLACEMENT COSTS, SUPPORT, GOVERNMENT FEES, AND OPERATING EXPENSES SUCH AS ENGINE RESERVES, MAINTENANCE AND REPAIR, AND USAGE.
IRS990/ScheduleORequiredInd01
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt0THERE ARE NO COMMITTEES WITH AUTHORITY TO ACT ON THE BEHALF OF STANFORD AVIATION ASSOCIATION.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt1STANFORD AVIATION ASSOCIATION PROVIDES A COPY OF THE TAX RETURN TO THE BOARD OF DIRECTORS FOR REVIEW BEFORE FORM 990 IS FILED.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt2STANFORD AVIATION ASSOCIATION MAKES ITS GOVERNING DOCUMENTS AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC UPON REQUEST.
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc0FORM 990, PART VI, SECTION A, LINE 8B
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc1FORM 990, PART VI, SECTION B, LINE 11B
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc2FORM 990, PART VI, SECTION C, LINE 19
IRS990/SchoolOperatingInd00
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IRS990/SignificantNewProgramSrvcInd00
IRS990/StatesWhereCopyOfReturnIsFldCd0CA
IRS990/SubjectToExcsTaxNetInvstIncInd00
IRS990/SubjectToProxyTaxInd00
IRS990/SubjToTaxRmnrtnExPrchtPymtInd00
IRS990/TaxablePartyNotificationInd00
IRS990/TaxExemptBondsInd00
IRS990/TerminateOperationsInd00
IRS990/TotalAssetsBOYAmt01264149
IRS990/TotalAssetsEOYAmt01385910
IRS990/TotalAssetsGrp/BOYAmt01264149
IRS990/TotalAssetsGrp/EOYAmt01385910
IRS990/TotalCompGreaterThan150KInd00
IRS990/TotalEmployeeCnt00
IRS990/TotalFunctionalExpensesGrp/FundraisingAmt00
IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt076278
IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt0268959
IRS990/TotalFunctionalExpensesGrp/TotalAmt0345237
IRS990/TotalGrossUBIAmt00
IRS990/TotalLiabilitiesBOYAmt00
IRS990/TotalLiabilitiesEOYAmt02544
IRS990/TotalLiabilitiesGrp/BOYAmt00
IRS990/TotalLiabilitiesGrp/EOYAmt02544
IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt01264149
IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt01383366
IRS990/TotalOtherCompensationAmt00
IRS990/TotalProgramServiceExpensesAmt0268959
IRS990/TotalProgramServiceRevenueAmt0368268
IRS990/TotalReportableCompFromOrgAmt00
IRS990/TotalRevenueGrp/ExclusionAmt061740
IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt0402714
IRS990/TotalRevenueGrp/TotalRevenueColumnAmt0464454
IRS990/TotalRevenueGrp/UnrelatedBusinessRevenueAmt00
IRS990/TotalVolunteersCnt00
IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt01264149
IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt01385910
IRS990/TotReportableCompRltdOrgAmt00
IRS990/TrnsfrExmptNonChrtblRltdOrgInd00
IRS990/TypeOfOrganizationCorpInd0X
IRS990/UnrelatedBusIncmOverLimitInd00
IRS990/UponRequestInd0X
IRS990/USAddress/AddressLine1Txt0PO BOX 20488
IRS990/USAddress/CityNm0STANFORD
IRS990/USAddress/StateAbbreviationCd0CA
IRS990/USAddress/ZIPCd094309
IRS990/VotingMembersGoverningBodyCnt03
IRS990/VotingMembersIndependentCnt03
IRS990/WebsiteAddressTxt0WWW.FLYSTANFORD.COM
IRS990/WhistleblowerPolicyInd00
ReturnHeader/BuildTS02025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd01
ReturnHeader/BusinessOfficerGrp/PersonNm0BERT J POSTMA
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt0CFO
ReturnHeader/BusinessOfficerGrp/PhoneNum06508582200
ReturnHeader/BusinessOfficerGrp/SignatureDt02026-01-19
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt0STANFORD AVIATION ASSOCIATION
ReturnHeader/Filer/BusinessNameControlTxt0STAN
ReturnHeader/Filer/EIN0510188222
ReturnHeader/Filer/PhoneNum06508582200
ReturnHeader/Filer/USAddress/AddressLine1Txt0PO BOX 20488
ReturnHeader/Filer/USAddress/CityNm0STANFORD
ReturnHeader/Filer/USAddress/StateAbbreviationCd0CA
ReturnHeader/Filer/USAddress/ZIPCd094309
ReturnHeader/IRSResponsiblePrtyInfoCurrInd00
ReturnHeader/PreparerFirmGrp/PreparerFirmEIN0680300457
ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt0MACIAS GINI & O'CONNELL LLP
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt02570 W EL CAMINO REAL 600
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm0MOUNTAIN VIEW
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd0CA
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd094040
ReturnHeader/PreparerPersonGrp/PhoneNum06502091800
ReturnHeader/PreparerPersonGrp/PreparerPersonNm0FERNANDA AMARAL
ReturnHeader/ReturnTs02026-01-21T16:25:24-06:00
ReturnHeader/ReturnTypeCd0990
ReturnHeader/TaxPeriodBeginDt02024-01-01
ReturnHeader/TaxPeriodEndDt02024-12-31
ReturnHeader/TaxYr02024

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