Liabilities / Assets
74th percentile
Higher debt load relative to assets than 74% of similar nonprofits.
EIN 13-3321837 • 501(c)3 • Princeton, NJ
Profile
The primary purpose is to provide teachers and administrators as well as facilities and equipment, including dormitories, faculty and administrative services for a primary and secondary school in Istanbul, Turkey.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
74th percentile
Higher debt load relative to assets than 74% of similar nonprofits.
Liabilities / Revenue
75th percentile
Higher debt load relative to revenue than 75% of similar nonprofits.
Net Margin
24th percentile
Higher net margin than 24% of similar nonprofits.
Top Officer Pay
Score unavailable
No filing with officer rows is available for this organization yet.
Asset Growth
66th percentile
Faster asset growth than 66% of similar nonprofits.
Revenue Growth
45th percentile
Faster revenue growth than 45% of similar nonprofits.
Assets
Down$25,945,189
Down $370,086 (-1.4%) from 2024
Liabilities
Up$13,367,737
Up $373,127 (+2.9%) from 2024
Net Assets
Down$12,577,452
Down $743,213 (-5.6%) from 2024
Revenue
Down$15,959,908
Down $95,171 (-0.6%) from 2024
Expenses
Up$16,703,121
Up $1,016,533 (+6.5%) from 2024
Net Income
Down-$743,213
Down $1,111,704 (-302%) from 2024
Most recent year
2025 • Form 990Detailed filing. Detailed filing data is available for this year.
The primary purpose is to provide teachers and administrators as well as facilities and equipment, including dormitories, faculty and administrative services for a primary and secondary school in Istanbul, Turkey.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Savings and Temporary Cash Investments | $14,397,942 | $12,557,875 | ▼ $1,840,067 |
| Land, Buildings, and Equipment, Net | $10,812,857 | $10,579,768 | ▼ $233,089 |
| Prepaid Expenses and Deferred Charges | $750,883 | $1,180,392 | ▲ $429,509 |
| Accounts Receivable | $152,494 | $491,291 | ▲ $338,797 |
| Inventories for Sale or Use | $19,614 | $60,557 | ▲ $40,943 |
| Total Assets | $26,315,275 | $25,945,189 | ▼ $370,086 |
| Other Assets Total | $181,485 | $1,075,306 | ▲ $893,821 |
| Liabilities | |||
| Deferred Revenue | $11,414,878 | $10,789,756 | ▼ $625,122 |
| Other Liabilities | $1,056,021 | $2,154,827 | ▲ $1,098,806 |
| Accounts Payable and Accrued Expenses | $406,892 | $341,591 | ▼ $65,301 |
| Mortgage Notes Payable Secured by Investment Property | $116,819 | $81,563 | ▼ $35,256 |
| Total Liabilities | $12,994,610 | $13,367,737 | ▲ $373,127 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $13,320,665 | $12,577,452 | ▼ $743,213 |
| Total Net Assets Fund Balance | $13,320,665 | $12,577,452 | ▼ $743,213 |
| Total Liabilities and Net Assets / Fund Balance | $26,315,275 | $25,945,189 | ▼ $370,086 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $8,289,976 | $5,330,080 | $13,620,056 |
| Equipment | $723,396 | $3,654,446 | $4,377,842 |
| Land | $1,338,099 | - | $1,636,953 |
| Leasehold Improvements | $154,000 | $583,212 | $737,212 |
| Other Land Buildings | $74,297 | $417,328 | $491,625 |
| Name | Title |
|---|---|
| Molly Grunberg | Chairperson |
| Elizabeth Duffy | President |
| Sahver Cekirdekci | Vice Chairman |
| Figen Underdown | Board Secretary |
| Andy Nelson | Director |
| Carlo Pigino | Director |
| Charaine Poutasi | Director |
| Ebru Dorman | Director |
| Jaden Lim | Director |
| Omer Kipman | Director |
| Oussama Najjar | Director |
| Rozita Borden | Director |
| Tav Morgan | Director |
| Nicolaas Mostert | Head of School |
| Deirdre A Simon | Secretary/ Treasurer |
| Burak Pullukcu | Treasurer |
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $12,700,815 |
| Other Expenses | $4,002,306 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $12,700,815 | - | - | $12,700,815 |
| Depreciation Depletion | $571,688 | - | - | $571,688 |
| Interest | $89,491 | - | - | $89,491 |
| Other Expenses | $61,597 | - | - | $61,597 |
| Fees for Services Management | - | $16,422 | - | $16,422 |
| Insurance | - | $2,185 | - | $2,185 |
| Fees for Services Accounting | - | $1,355 | - | $1,355 |
| Fees for Services Legal | - | $572 | - | $572 |
| Total Functional Expenses | $16,682,587 | $20,534 | $0 | $16,703,121 |
| Region | Activity | Services | Offices | Employees | Spending |
|---|---|---|---|---|---|
| Europe Including Iceland and Greenland | Program Services | The foundation furnishes financial and administrative support | - | 103 | $16,682,587 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Liability | Amount |
|---|---|
| Non-Current operating Lease Liability | $905,331 |
| Federal income taxes | $625,641 |
| Termination and retirement liability | $419,005 |
| Other Liabilities | $204,850 |
“Copies of Form 990 are reviewed by the Board prior to submission to the Internal Revenue Service.”
“Per Board of Directors and policy manual the board members must disclose any situation that may appear as a conflict of interest at any time.”
“The organizations governing documents, conflict of interest policy and financial statements are available to the public upon request.”
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 | 406892 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 341591 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 152494 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 491291 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | The primary purpose is to provide teachers and administrators as well as facilities and equipment, including dormitories, faculty and administrative services for a primary and secondary school in Istanbul, Turkey. |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 0 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 0 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/AuditCommitteeInd | 0 | true |
| IRS990/BenefitsToMembersGrp/TotalAmt | 0 | 0 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | International Schools Services Inc |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 6094520990 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 15 Roszel Road |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | Princeton |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | NJ |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 08540 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 0 |
| IRS990/CompDisqualPersonsGrp/TotalAmt | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | false |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | true |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 0 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 347832 |
| IRS990/CYOtherExpensesAmt | 0 | 4002306 |
| IRS990/CYOtherRevenueAmt | 0 | 193640 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 15418436 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -743213 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 12700815 |
| IRS990/CYTotalExpensesAmt | 0 | 16703121 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 15959908 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 11414878 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 10789756 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 571688 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 571688 |
| IRS990/Desc | 0 | Operation of a primary and secondary school for International Community of Istanbul, Turkey. The school provides teachers and administration as well as facilities. Approximately 492 students served. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | false |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/EscrowAccountInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 16682587 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 1355 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 1355 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 572 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 572 |
| IRS990/FeesForServicesLobbyingGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesManagementGrp/ManagementAndGeneralAmt | 0 | 16422 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 16422 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 0 |
| IRS990/ForeignActivitiesInd | 0 | true |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignGrantsGrp/TotalAmt | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 005.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 005.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 005.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 005.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 005.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 005.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 005.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 005.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 005.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 005.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 005.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 005.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 005.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 005.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 005.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 005.00 |
| 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/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 11 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 12 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 13 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 14 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 15 | 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/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | Elizabeth Duffy |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | Molly Grunberg |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | Sahver Cekirdekci |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | Burak Pullukcu |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | Deirdre A Simon |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | Figen Underdown |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | Rozita Borden |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | Tav Morgan |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | Ebru Dorman |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | Jaden Lim |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | Nicolaas Mostert |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | Charaine Poutasi |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | Andy Nelson |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | Carlo Pigino |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | Omer Kipman |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | Oussama Najjar |
| 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/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 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/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | President |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | Chairperson |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | Vice Chairman |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Treasurer |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | Secretary/ Treasurer |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | Board Secretary |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | Head of School |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | Director |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1987 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 16 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 0 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 0 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 15959908 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IncmFromInvestBondProceedsGrp/ExclusionAmt | 0 | 347832 |
| IRS990/IncmFromInvestBondProceedsGrp/TotalRevenueColumnAmt | 0 | 347832 |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 16 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 0 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 2185 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 2185 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 89491 |
| IRS990/InterestGrp/TotalAmt | 0 | 89491 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 19614 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 60557 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestTaxExemptBondsInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/JointCostsInd | 0 | X |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 10283920 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 10812857 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 10579768 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 20863688 |
| IRS990/LegalDomicileStateCd | 0 | NY |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | The primary purpose is to provide teachers and administrators as well as facilities and equipment, including dormitories, faculty and administrative services for a primary and secondary school in Istanbul, Turkey. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 116819 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 81563 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 13320665 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 12577452 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 13320665 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 12577452 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/TotalAmt | 0 | 0 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 0 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OnBehalfOfIssuerInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 181485 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 1075306 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/Desc | 0 | Currency translation loss |
| IRS990/OtherExpensesGrp/Desc | 1 | Operation and Maintenance of Plant |
| IRS990/OtherExpensesGrp/Desc | 2 | Other Expenses |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 589216 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 2669780 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 61597 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 589216 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 2669780 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 61597 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 1056021 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 2154827 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 611710 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | Recovery of Taxes |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 193640 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 193640 |
| IRS990/OtherRevenueTotalAmt | 0 | 193640 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 12700815 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 12700815 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PaymentsToAffiliatesGrp/TotalAmt | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 0 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 750883 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 1180392 |
| IRS990/PrincipalOfficerNm | 0 | Deirdre Simon |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 611710 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 611710 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 611710 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | Educ Support Services |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | Other Income |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | Other Comprehensive Income |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 15111104 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 287076 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 2 | 20256 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 15111104 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 287076 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 20256 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYInvestmentIncomeAmt | 0 | 609962 |
| IRS990/PymtTravelEntrtnmntPubOfclGrp/TotalAmt | 0 | 0 |
| IRS990/PYOtherExpensesAmt | 0 | 3891361 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 15445117 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 368491 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 11795227 |
| IRS990/PYTotalExpensesAmt | 0 | 15686588 |
| IRS990/PYTotalRevenueAmt | 0 | 16055079 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -743213 |
| IRS990/RegularMonitoringEnfrcInd | 0 | true |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | true |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RevenueAmt | 0 | 15418436 |
| IRS990/RoyaltiesGrp/TotalAmt | 0 | 0 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 14397942 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 12557875 |
| IRS990ScheduleA/SchoolInd | 0 | X |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 8289976 |
| IRS990ScheduleD/BuildingsGrp/DepreciationAmt | 0 | 5330080 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 13620056 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 723396 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 3654446 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 4377842 |
| IRS990ScheduleD/FederalIncomeTaxLiabilityAmt | 0 | 625641 |
| IRS990ScheduleD/InclEscrowCustodialAcctLiabInd | 0 | false |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 1338099 |
| IRS990ScheduleD/LandGrp/OtherCostOrOtherBasisAmt | 0 | 1636953 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/BookValueAmt | 0 | 154000 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/DepreciationAmt | 0 | 583212 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/OtherCostOrOtherBasisAmt | 0 | 737212 |
| IRS990ScheduleD/OtherLandBuildingsGrp/BookValueAmt | 0 | 74297 |
| IRS990ScheduleD/OtherLandBuildingsGrp/DepreciationAmt | 0 | 417328 |
| IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 491625 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 0 | 625641 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 1 | 419005 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 2 | 204850 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 3 | 905331 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | Federal income taxes |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 1 | Termination and retirement liability |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 2 | Other Liabilities |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 3 | Non-Current operating Lease Liability |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 0 | Financial derivatives and other financial products |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 1 | Closely-held equity interests |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 10579768 |
| IRS990ScheduleD/TotalLiabilityAmt | 0 | 2154827 |
| IRS990ScheduleE/ComplianceWithRevProc7550Ind | 0 | true |
| IRS990ScheduleE/DiscriminateRaceAdmissPlcyInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceAthltProgInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceEducPlcyInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceEmplmFcultyInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceOtherActyInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceSchsInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceStdntsRghtsInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceUseOfFcltsInd | 0 | false |
| IRS990ScheduleE/GovernmentFinancialAidRcvdInd | 0 | false |
| IRS990ScheduleE/GovernmentFinancialAidRvkdInd | 0 | false |
| IRS990ScheduleE/MaintainCpyOfAllSolInd | 0 | true |
| IRS990ScheduleE/MaintainCpyOfBrochuresEtcInd | 0 | true |
| IRS990ScheduleE/MaintainRacialCompRecsInd | 0 | true |
| IRS990ScheduleE/MaintainScholarshipsRecsInd | 0 | true |
| IRS990ScheduleE/NondiscriminatoryPolicyStmtInd | 0 | true |
| IRS990ScheduleE/PlcyPblczdViaBroadcastMediaInd | 0 | true |
| IRS990ScheduleE/PolicyStmtInBrochuresEtcInd | 0 | true |
| IRS990ScheduleF/AccountActivitiesOutsideUSGrp/EmployeeCnt | 0 | 103 |
| IRS990ScheduleF/AccountActivitiesOutsideUSGrp/RegionTotalExpendituresAmt | 0 | 16682587 |
| IRS990ScheduleF/AccountActivitiesOutsideUSGrp/RegionTxt | 0 | Europe Including Iceland and Greenland |
| IRS990ScheduleF/AccountActivitiesOutsideUSGrp/SpecificServicesProvidedTxt | 0 | The foundation furnishes financial and administrative support |
| IRS990ScheduleF/AccountActivitiesOutsideUSGrp/TypeOfActivitiesConductedTxt | 0 | Program Services |
| IRS990ScheduleF/BoycottCountriesInd | 0 | false |
| IRS990ScheduleF/ForeignCorpOwnershipInd | 0 | false |
| IRS990ScheduleF/ForeignPartnershipInd | 0 | false |
| IRS990ScheduleF/InterestInForeignTrustInd | 0 | false |
| IRS990ScheduleF/PassiveForeignInvestmestCoInd | 0 | false |
| IRS990ScheduleF/SubtotalEmployeesCnt | 0 | 103 |
| IRS990ScheduleF/SubtotalSpentAmt | 0 | 16682587 |
| IRS990ScheduleF/TotalEmployeeCnt | 0 | 103 |
| IRS990ScheduleF/TotalSpentAmt | 0 | 16682587 |
| IRS990ScheduleF/TransferToForeignCorpInd | 0 | false |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | true |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | Copies of Form 990 are reviewed by the Board prior to submission to the Internal Revenue Service. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | Per Board of Directors and policy manual the board members must disclose any situation that may appear as a conflict of interest at any time. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | The organizations governing documents, conflict of interest policy and financial statements are available to the public upon request. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Form 990, Part VI, Section B, Line 11b |
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