Liabilities / Assets
28th percentile
Higher debt load relative to assets than 28% of similar nonprofits.
EIN 73-0632928 • 501(c)3 • Oklahoma City, OK
Profile
The ninety-nines mission is to promote world fellowship through flight, provide networking and scholarship opportunities for women and aviation education in the community, and preserve the unique history of women in aviation.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
28th percentile
Higher debt load relative to assets than 28% of similar nonprofits.
Liabilities / Revenue
64th percentile
Higher debt load relative to revenue than 64% of similar nonprofits.
Net Margin
21st percentile
Higher net margin than 21% of similar nonprofits.
Top Officer Pay
Score unavailable
No filing with officer rows is available for this organization yet.
Asset Growth
44th percentile
Faster asset growth than 44% of similar nonprofits.
Revenue Growth
3rd percentile
Faster revenue growth than 3% of similar nonprofits.
Assets
Up$15,531,623
Up $489,982 (+3.3%) from 2024
Liabilities
Up$652,926
Up $108,485 (+20%) from 2024
Net Assets
Up$14,878,697
Up $381,497 (+2.6%) from 2024
Revenue
Down$1,582,525
Down $2,143,055 (-58%) from 2024
Expenses
Up$1,700,855
Up $311,519 (+22%) from 2024
Net Income
Down-$118,330
Down $2,454,574 (-105%) from 2024
Most recent year
2025 • Form 990Detailed filing. Detailed filing data is available for this year.
The ninety-nines' mission is to promote world fellowship through flight, provide networking and scholarship opportunities for women and aviation education in the community, and preserve the unique history of women in aviation.
The ninety-nines mission is to promote advancement of aviation through education, scholarships, and mutual support while honoring our unique history and sharing our passion for flight.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Investments in Publicly Traded Securities | $12,278,998 | $14,124,291 | ▲ $1,845,293 |
| Pledges and Grants Receivable | $1,025,000 | - | - |
| Land, Buildings, and Equipment, Net | $502,481 | $484,982 | ▼ $17,499 |
| Cash and Non-Interest-Bearing Accounts | $528,513 | $262,794 | ▼ $265,719 |
| Savings and Temporary Cash Investments | $337,515 | $230,896 | ▼ $106,619 |
| Accounts Receivable | $22,726 | $73,095 | ▲ $50,369 |
| Prepaid Expenses and Deferred Charges | $25,226 | $30,169 | ▲ $4,943 |
| Inventories for Sale or Use | $3,165 | $3,165 | → $0 |
| Total Assets | $15,041,641 | $15,531,623 | ▲ $489,982 |
| Other Assets Total | $318,017 | $322,231 | ▲ $4,214 |
| Liabilities | |||
| Grants Payable | $312,215 | $387,272 | ▲ $75,057 |
| Deferred Revenue | $160,113 | $164,769 | ▲ $4,656 |
| Accounts Payable and Accrued Expenses | $72,113 | $100,885 | ▲ $28,772 |
| Total Liabilities | $544,441 | $652,926 | ▲ $108,485 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $8,557,571 | $8,887,528 | ▲ $329,957 |
| Net Assets With Donor Restrictions | $5,939,629 | $5,991,169 | ▲ $51,540 |
| Total Net Assets Fund Balance | $14,497,200 | $14,878,697 | ▲ $381,497 |
| Total Liabilities and Net Assets / Fund Balance | $15,041,641 | $15,531,623 | ▲ $489,982 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $412,498 | $1,402,894 | $1,815,392 |
| Equipment | $72,484 | $303,779 | $376,263 |
| Land | $0 | - | - |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2024 | $4,253,671 | $45,947 | ▲ $395,248 | $189,478 | $4,505,388 |
| 2023 | $3,841,462 | $16,614 | ▲ $567,955 | $172,360 | $4,253,671 |
| 2022 | $3,971,964 | $14,116 | ▼ $121,996 | $22,622 | $3,841,462 |
| 2021 | $4,158,467 | $18,052 | ▼ $33,077 | $171,478 | $3,971,964 |
| 2020 | $2,990,910 | $533,550 | ▲ $691,823 | $57,816 | $4,158,467 |
| Name | Title |
|---|---|
| Robin Hadfield | President |
| Minnetta Gardinier | Vice President |
| Janet Patton | Director |
| Mary Build | Director |
| Nivedita Bhasin | Director |
| Pat Chan | Director |
| Jill Vanegmond | Executive Director (eff 5-25) |
| Debi Dreyfuss | Secretary |
| Aileen Coverdell | Treasurer |
| Line Item | Amount |
|---|---|
| Other Expenses | $929,476 |
| Salaries, Compensation, and Employee Benefits | $426,260 |
| Grants and Similar Amounts Paid | $345,119 |
| Total Fundraising Expense | $63,343 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $210,761 | $215,499 | $0 | $426,260 |
| Grants to Domestic Individuals | $260,411 | - | - | $260,411 |
| Occupancy | $54,478 | $115,597 | $0 | $170,075 |
| Conferences and Meetings | $118,900 | $0 | $0 | $118,900 |
| Office Expenses | $2,415 | $115,785 | $0 | $118,200 |
| Foreign Grants | $84,708 | - | - | $84,708 |
| Advertising | $75,647 | $0 | $0 | $75,647 |
| Depreciation Depletion | $48,231 | $21,674 | $0 | $69,905 |
| Insurance | $4,876 | $59,214 | $0 | $64,090 |
| Fees for Service Investment Mgmnt Fees | $0 | $60,611 | $0 | $60,611 |
| Fees for Services Legal | $0 | $36,085 | $0 | $36,085 |
| All Other Expenses | $0 | $33,787 | $979 | $34,766 |
| Fees for Services Accounting | $0 | $28,280 | $0 | $28,280 |
| Travel | $0 | $28,070 | $0 | $28,070 |
| Information Technology | $0 | $21,425 | $0 | $21,425 |
| Other Expenses | $0 | $6,931 | $0 | $6,931 |
| Total Functional Expenses | $860,442 | $777,070 | $63,343 | $1,700,855 |
| Region | Activity | Services | Offices | Employees | Spending |
|---|---|---|---|---|---|
| North America | Grants to Recipients Located in the Region | - | 0 | 0 | $23,276 |
| East Asia and Pacific | Grants to Recipients Located in the Region | - | 0 | 0 | $16,000 |
| South America | Grants to Recipients Located in the Region | - | 0 | 0 | $11,540 |
| South Asia | Grants to Recipients Located in the Region | - | 0 | 0 | $10,772 |
| Europe | Grants to Recipients Located in the Region | - | 0 | 0 | $10,395 |
| Sub-Saharan Africa | Grants to Recipients Located in the Region | - | 0 | 0 | $6,725 |
| Russia | Grants to Recipients Located in the Region | - | 0 | 0 | $6,000 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“The completed form is provided to the board of directors for review prior to filing.”
“Governing documents and financial statements are available on the website in the member only section. Governing documents are also contained in the printed membership directory.”
“Line 9: change in value of beneficial interest.”
“Board directors are elected by ballots sent to every member.”
“All new board members are required to read and sign acknowledgement of the organizations conflict-of-interest policy and annually complete a questionnaire outlining actual or potential conflicts.”
“There is generally one class of membership which is active member. Within this classification are chapter members, section members, member-at-large, and student pilot member.”
“The collection comprises papers, personal items and other historic artifacts of some of the most significant achievements and adventures of the international community of women pilots. The exhibits provide insights into the role women played in the development of aviation.”
“The endowment funds were established to provide future financial support to the ninety-nines general operations.”
“The ninety-nines maintain various collections including archival records, personal memorabilia, oral histories, books, art, films, photographs, and biographical files at the amelia earhart birthplace museum and the ninety-nines museum of women pilots. Contributions are not recognized for contributions of works of art, historical treasures, and similar items if the donated items are added to collections.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 72113 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 100885 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 22726 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 73095 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | THE NINETY-NINES MISSION IS TO PROMOTE ADVANCEMENT OF AVIATION THROUGH EDUCATION, SCHOLARSHIPS, AND MUTUAL SUPPORT WHILE HONORING OUR UNIQUE HISTORY AND SHARING OUR PASSION FOR FLIGHT. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 0 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 0 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 75647 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 75647 |
| IRS990/AllOtherContributionsAmt | 0 | 398228 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 979 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 33787 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 34766 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/AuditCommitteeInd | 0 | true |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | THE ORGANIZATION |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 4056857969 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 4300 AMELIA EARHART RD |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | OKLAHOMA CITY |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | OK |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 73159 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 528513 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 262794 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | true |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | false |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConferencesMeetingsGrp/FundraisingAmt | 0 | 0 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 0 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 118900 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 118900 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | true |
| IRS990/CostOfGoodsSoldAmt | 0 | 1072 |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 818655 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 345119 |
| IRS990/CYInvestmentIncomeAmt | 0 | 541835 |
| IRS990/CYOtherExpensesAmt | 0 | 929476 |
| IRS990/CYOtherRevenueAmt | 0 | 37514 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 184521 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -118330 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 426260 |
| IRS990/CYTotalExpensesAmt | 0 | 1700855 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 63343 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 1582525 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 160113 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 164769 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 21674 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 48231 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 69905 |
| IRS990/Desc | 0 | SCHOLARSHIPS - THE NINETY-NINES, INC. PROVIDES NETWORKING AND SCHOLARSHIP OPPORTUNITIES FOR WOMEN. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | false |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 5939629 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 5991169 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | true |
| IRS990/ElectionOfBoardMembersInd | 0 | true |
| IRS990/EmployeeCnt | 0 | 17 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 345119 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/FundraisingAmt | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 28280 |
| IRS990/FeesForServicesAccountingGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 28280 |
| IRS990/FeesForServicesLegalGrp/FundraisingAmt | 0 | 0 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 36085 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 36085 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/FundraisingAmt | 0 | 0 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 60611 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 60611 |
| IRS990/ForeignActivitiesInd | 0 | true |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignGrantsGrp/ProgramServicesAmt | 0 | 84708 |
| IRS990/ForeignGrantsGrp/TotalAmt | 0 | 84708 |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 30.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | JILL VANEGMOND |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | ROBIN HADFIELD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | MINNETTA GARDINIER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | DEBI DREYFUSS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | AILEEN COVERDELL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | MARY BUILD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | PAT CHAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | NIVEDITA BHASIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | JANET PATTON |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | EXECUTIVE DIRECTOR (EFF 5-25) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | DIRECTOR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1950 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 31445 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 8 |
| IRS990/GrantAmt | 0 | 345119 |
| IRS990/GrantsPayableGrp/BOYAmt | 0 | 312215 |
| IRS990/GrantsPayableGrp/EOYAmt | 0 | 387272 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 260411 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 260411 |
| IRS990/GrantsToIndividualsInd | 0 | true |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 633963 |
| IRS990/GrossReceiptsAmt | 0 | 2186115 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 2658 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 35928 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 8 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 0 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 21425 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 21425 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 0 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 59214 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 4876 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 64090 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 3165 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 3165 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 510390 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 510390 |
| IRS990/InvestmentIncomeGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 12278998 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 14124291 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 1706673 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 502481 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 484982 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 2191655 |
| IRS990/LegalDomicileStateCd | 0 | OK |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 602518 |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | true |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembershipDuesAmt | 0 | 417027 |
| IRS990/MembersOrStockholdersInd | 0 | true |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | THE NINETY-NINES MISSION IS TO PROMOTE ADVANCEMENT OF AVIATION THROUGH EDUCATION, SCHOLARSHIPS, AND MUTUAL SUPPORT WHILE HONORING OUR UNIQUE HISTORY AND SHARING OUR PASSION FOR FLIGHT. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | true |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 14497200 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 14878697 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 31445 |
| IRS990/NetGainOrLossInvestmentsGrp/RelatedOrExemptFuncIncomeAmt | 0 | 0 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 31445 |
| IRS990/NetGainOrLossInvestmentsGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 34856 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 34856 |
| IRS990/NetRentalIncomeOrLossGrp/ExclusionAmt | 0 | 2658 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 2658 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 491459 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 8557571 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 8887528 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NoncashContributionsAmt | 0 | 2593 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 115597 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 54478 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 170075 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 115785 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 2415 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 118200 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 318017 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 322231 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 8368 |
| IRS990/OtherExpensesGrp/Desc | 0 | MEMBERSHIP DEVELOPMENT |
| IRS990/OtherExpensesGrp/Desc | 1 | PUBLIC RELATIONS |
| IRS990/OtherExpensesGrp/Desc | 2 | PRESIDENTS ALLOWANCE |
| IRS990/OtherExpensesGrp/Desc | 3 | DUES AND SUBSCRIPTIONS |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 33708 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 28656 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 2 | 0 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 3 | 0 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 6334 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 27778 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 3 | 6931 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 15 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 0 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 0 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 33708 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 35005 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 27778 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 6931 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 0 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 215499 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 210761 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 426260 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 1025000 |
| IRS990/PoliciesReferenceChaptersInd | 0 | true |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 25226 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 30169 |
| IRS990/PrincipalOfficerNm | 0 | ROBIN HADFIELD |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | PROGRAM SERVICE REVENUE |
| IRS990/ProgramServiceRevenueGrp/ExclusionAmt | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 184521 |
| IRS990/ProgramServiceRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | MUSEUMS - THE NINETY-NINES, INC. PROVIDES AVIATION EDUCATION IN THE COMMUNITY BY OPERATING THE AMELIA EARHART BIRTHPLACE MUSEUM AND THE MUSEUM OF WOMEN PILOTS. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 320656 |
| IRS990/ProgSrvcAccomActy2Grp/GrantAmt | 0 | 0 |
| IRS990/ProgSrvcAccomActy2Grp/RevenueAmt | 0 | 112385 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | OTHER ACTIVITIES TO FURTHER THE ORGANIZATIONS MISSION INCLUDING NINETY-NINE NEWS PUBLICATION. |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 194667 |
| IRS990/ProgSrvcAccomActy3Grp/GrantAmt | 0 | 0 |
| IRS990/ProgSrvcAccomActy3Grp/RevenueAmt | 0 | 106992 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 3053391 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 308986 |
| IRS990/PYInvestmentIncomeAmt | 0 | 477870 |
| IRS990/PYOtherExpensesAmt | 0 | 700376 |
| IRS990/PYOtherRevenueAmt | 0 | 34300 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 160019 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 2336244 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 379974 |
| IRS990/PYTotalExpensesAmt | 0 | 1389336 |
| IRS990/PYTotalRevenueAmt | 0 | 3725580 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -118330 |
| IRS990/RegularMonitoringEnfrcInd | 0 | true |
| IRS990/RelatedEntityInd | 0 | true |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | true |
| IRS990/RelatedOrganizationsAmt | 0 | 3400 |
| IRS990/RentalIncomeOrLossGrp/RealAmt | 0 | 2658 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RevenueAmt | 0 | 0 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 337515 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 230896 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 818655 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 3053391 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 568340 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 653883 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 1020224 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 6114493 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 513048 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 376462 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 363840 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 374428 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 358088 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 1985866 |
| IRS990ScheduleA/GrossReceiptsRltdActivitiesAmt | 0 | 723900 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0 |
| IRS990ScheduleA/OtherIncome170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/OtherSupportSumAmt | 0 | 0 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.49380 |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.47940 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 4000242 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 0 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 2114251 |
| IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 818655 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 3053391 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 568340 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 653883 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 1020224 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 6114493 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 8100359 |
| IRS990ScheduleA/UnrelatedBusinessNetIncm170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990/ScheduleBRequiredInd | 0 | true |
| IRS990ScheduleD/BoardDesignatedBalanceEOYPct | 0 | 0.12200 |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 412498 |
| IRS990ScheduleD/BuildingsGrp/DepreciationAmt | 0 | 1402894 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 1815392 |
| IRS990ScheduleD/CollectionUsedPubExhibitionInd | 0 | X |
| IRS990ScheduleD/CYEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 4253671 |
| IRS990ScheduleD/CYEndwmtFundGrp/ContributionsAmt | 0 | 45947 |
| IRS990ScheduleD/CYEndwmtFundGrp/EndYearBalanceAmt | 0 | 4505388 |
| IRS990ScheduleD/CYEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 395248 |
| IRS990ScheduleD/CYEndwmtFundGrp/OtherExpendituresAmt | 0 | 189478 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 3841462 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/ContributionsAmt | 0 | 16614 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 4253671 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 567955 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/OtherExpendituresAmt | 0 | 172360 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 3971964 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/ContributionsAmt | 0 | 14116 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 3841462 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | -121996 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/OtherExpendituresAmt | 0 | 22622 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 4158467 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/ContributionsAmt | 0 | 18052 |
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