Liabilities / Assets
Score unavailable
Liabilities-to-assets requires both liabilities and assets on this filing.
990EZ • Fiscal year 2025 • EIN 83-0900280
Precomputed percentiles for this filing year versus similar nonprofits in the same peer cohort.
Liabilities / Assets
Score unavailable
Liabilities-to-assets requires both liabilities and assets on this filing.
Liabilities / Revenue
Score unavailable
Liabilities-to-revenue requires both liabilities and revenue on this filing.
Net Margin
95th percentile
Higher net margin than 95% of similar nonprofits.
Top Officer Pay
88th percentile
Higher top officer pay than 88% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
Score unavailable
No earlier valid filing was available within the previous three public years.
Revenue Growth
Score unavailable
No earlier valid filing was available within the previous three public years.
Assets
$104,874
No earlier filing loaded for comparison.
Net Assets
$104,874
No earlier filing loaded for comparison.
Liabilities
-
No earlier filing loaded for comparison.
Revenue
$82,261
No earlier filing loaded for comparison.
Expenses
$18,027
No earlier filing loaded for comparison.
Net Income
$64,234
No earlier filing loaded for comparison.
To advance scientific knowledge and education in the field of image-guided neurointerventions through organizing international scientific conferences, fostering collaboration among researchers and clinicians, and promoting the development of novel therapeutic approaches including intra-arterial drug delivery, blood-brain barrier modulation, and molecular imaging for neurological diseases.
| Description | Grants | Expenses |
|---|---|---|
| SIGN Conference in Basel, Switzerland. But the cost was paid mostly in 2026, so it will be reported on the next year tax return, as cash accounting is selected. | $0 | $59,978 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| - | Secretary | - | $0 | - | - |
| Michal Zawadzki | Vice CEO/President | - | $0 | - | - |
| - | CEO/President | - | $0 | - | - |
“Costs of organizing conference event. The remaining part for the event in 2025 were paid in 2026, so it will be present in the next year tax return”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990EZ/ActivitiesNotPreviouslyRptInd | 0 | false |
| IRS990EZ/BooksInCareOfDetail/PersonNm | 0 | Miroslaw Janowski |
| IRS990EZ/BooksInCareOfDetail/PhoneNum | 0 | 4439348260 |
| IRS990EZ/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 434 Range Road |
| IRS990EZ/BooksInCareOfDetail/USAddress/CityNm | 0 | Towson |
| IRS990EZ/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MD |
| IRS990EZ/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 21204 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/BOYAmt | 0 | 40029 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/EOYAmt | 0 | 104874 |
| IRS990EZ/ChgMadeToOrgnzngDocNotRptInd | 0 | false |
| IRS990EZ/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990EZ/ContributionsGiftsGrantsEtcAmt | 0 | 64340 |
| IRS990EZ/DirectIndirectPltclExpendAmt | 0 | 0 |
| IRS990EZ/DonorAdvisedFndsInd | 0 | false |
| IRS990EZ/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990EZ/ExcessOrDeficitForYearAmt | 0 | 64234 |
| IRS990EZ/FiledScheduleAInd | 0 | true |
| IRS990EZ/ForeignFinancialAccountInd | 0 | false |
| IRS990EZ/ForeignOfficeInd | 0 | false |
| IRS990EZ/Form1120PolFiledInd | 0 | false |
| IRS990EZ/Form990TotalAssetsGrp/BOYAmt | 0 | 40029 |
| IRS990EZ/Form990TotalAssetsGrp/EOYAmt | 0 | 104874 |
| IRS990EZ/GrantsAndSimilarAmountsPaidAmt | 0 | 0 |
| IRS990EZ/GrossReceiptsAmt | 0 | 82261 |
| IRS990EZ/InfoInScheduleOPartIInd | 0 | X |
| IRS990EZ/LobbyingActivitiesInd | 0 | false |
| IRS990EZ/MadeLoansToFromOfficersInd | 0 | false |
| IRS990EZ/MethodOfAccountingCashInd | 0 | X |
| IRS990EZ/NetAssetsOrFundBalancesBOYAmt | 0 | 40029 |
| IRS990EZ/NetAssetsOrFundBalancesEOYAmt | 0 | 104263 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/BOYAmt | 0 | 40029 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/EOYAmt | 0 | 104874 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 0 | 1.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 1 | 1.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 2 | 1.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/BusinessName/BusinessNameLine1Txt | 0 | Piotr Walczak |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/BusinessName/BusinessNameLine1Txt | 1 | Miroslaw Janowski |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 0 | Michal Zawadzki |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 0 | Secretary |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 1 | Vice CEO/President |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 2 | CEO/President |
| IRS990EZ/OperateHospitalInd | 0 | false |
| IRS990EZ/Organization501c3Ind | 0 | X |
| IRS990EZ/OrganizationDissolvedEtcInd | 0 | false |
| IRS990EZ/OrganizationHadUBIInd | 0 | false |
| IRS990EZ/OtherEmployeePaidOver100kCnt | 0 | 0 |
| IRS990EZ/OtherExpensesTotalAmt | 0 | 18027 |
| IRS990EZ/PartVIHghstPdCntrctProfSrvcTxt | 0 | NONE |
| IRS990EZ/PartVIOfCompOfHghstPdEmplTxt | 0 | NONE |
| IRS990EZ/PoliticalCampaignActyInd | 0 | false |
| IRS990EZ/PrimaryExemptPurposeTxt | 0 | To advance scientific knowledge and education in the field of image-guided neurointerventions through organizing international scientific conferences, fostering collaboration among researchers and clinicians, and promoting the development of novel therapeutic approaches including intra-arterial drug delivery, blood-brain barrier modulation, and molecular imaging for neurological diseases. |
| IRS990EZ/ProgramServiceRevenueAmt | 0 | 17921 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 0 | SIGN Conference in Basel, Switzerland. But the cost was paid mostly in 2026, so it will be reported on the next year tax return, as cash accounting is selected. |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt | 0 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 0 | 59978 |
| IRS990EZ/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990EZ/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990EZ/SchoolOperatingInd | 0 | false |
| IRS990EZ/StatesWhereCopyOfReturnIsFldCd | 0 | MD |
| IRS990EZ/SubjectToProxyTaxInd | 0 | false |
| IRS990EZ/TanningServicesProvidedInd | 0 | false |
| IRS990EZ/TaxImposedOnOrganizationMgrAmt | 0 | 0 |
| IRS990EZ/TaxImposedUnderIRC4911Amt | 0 | 0 |
| IRS990EZ/TaxImposedUnderIRC4912Amt | 0 | 0 |
| IRS990EZ/TaxImposedUnderIRC4955Amt | 0 | 0 |
| IRS990EZ/TaxReimbursedByOrganizationAmt | 0 | 0 |
| IRS990EZ/TotalExpensesAmt | 0 | 18027 |
| IRS990EZ/TotalProgramServiceExpensesAmt | 0 | 59978 |
| IRS990EZ/TotalRevenueAmt | 0 | 82261 |
| IRS990EZ/TrnsfrExmptNonChrtblRltdOrgInd | 0 | false |
| IRS990EZ/TypeOfOrganizationCorpInd | 0 | X |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 0 | The organization is a scientific and educational nonprofit that derives its public support primarily from conference registration fees and grants. It is not a supporting organization. No amounts were reported on Part III, Line 12. The organization has been recognized as tax-exempt under Section 501(c)(3) since 2018 and qualifies as a publicly supported organization under Section 509(a)(2) as demonstrated in Part III |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc | 0 | Part III, line 12 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 64340 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 3000 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 67340 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearAmt | 0 | 0 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 17921 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 27000 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 44921 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearAmt | 0 | 0 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt | 0 | 0 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt | 0 | 0 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus2YearsAmt | 0 | 0 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt | 0 | 0 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt | 0 | 0 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.00000 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.00000 |
| IRS990ScheduleA/NetIncomeFromOtherUBIGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/OtherIncome509Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/OtherSupportSumAmt | 0 | 0 |
| IRS990ScheduleA/Post1975UBTIGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0.52790 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 0.00000 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 59261 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearAmt | 0 | 53000 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/TotalAmt | 0 | 53000 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearAmt | 0 | 53000 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/TotalAmt | 0 | 53000 |
| IRS990ScheduleA/SupportedOrganizationsCnt | 0 | 0 |
| IRS990ScheduleA/SupportedOrganizationsTotalCnt | 0 | 0 |
| IRS990ScheduleA/SupportSumAmt | 0 | 0 |
| IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft509Grp/CurrentTaxYearAmt | 0 | 0 |
| IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft509Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 82261 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 30000 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 0 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 0 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 0 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 112261 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 82261 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 30000 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 0 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt | 0 | 0 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt | 0 | 0 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 112261 |
| 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 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | Costs of organizing conference event. The remaining part for the event in 2025 were paid in 2026, so it will be present in the next year tax return |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Part I, Line 16 |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | Miroslaw Janowski |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | CEO/President |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 4439348260 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2026-04-15 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | SOCIETY FOR IMAGE-GUIDED NEUROINTERVENTIONS |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | SOCI |
| ReturnHeader/Filer/EIN | 0 | 830900280 |
| ReturnHeader/Filer/PhoneNum | 0 | 4439348260 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 606 Coventry Road |
| ReturnHeader/Filer/USAddress/CityNm | 0 | Baltimore |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | MD |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 21286 |
| ReturnHeader/ReturnTs | 0 | 2026-04-15T20:01:37Z |
| ReturnHeader/ReturnTypeCd | 0 | 990EZ |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2025-01-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2025-12-31 |
| ReturnHeader/TaxYr | 0 | 2025 |
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Displayed year
2025 • Form 990EZDetailed filing. Detailed filing data is available for this year.