Aronson Family Foundation

EIN 13-3693381 • Westport, CT

15 Westfair DriveWestport, CT 06880

Siviq Scores

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

No value available

Liabilities-to-assets requires both liabilities and assets on the latest valid filing.

Source year 2024

0.00x

Tied with the lowest-debt nonprofits in its peer group.

$500k-$1M nonprofits • Source year 2024

-1786%

Higher net margin than 1% of similar nonprofits.

$500k-$1M nonprofits • Source year 2024

Higher top officer pay than 70% of similar nonprofits.

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

$500k-$1M nonprofits • Source year 2024

-100%

Faster asset growth than 2% of similar nonprofits.

$500k-$1M nonprofits • Annualized from 2022 to 2024

-51%

Faster revenue growth than 7% of similar nonprofits.

$500k-$1M nonprofits • Annualized from 2022 to 2024

Balance Sheet

Liabilities / AssetsScore unavailable

Assets

Down

Down $10,608,816 (-100%) from 2023

Liabilities

Flat

Flat from 2023

Net Assets

Down

Down $10,608,816 (-100%) from 2023

Operations

Liabilities / Revenue40th percentile Net Margin1st percentile

Revenue

$594,156

Up $433,988 (+271%) from 2023

Expenses

$11,202,972

Up $10,802,433 (+2697%) from 2023

Net Income

Down

-$10,608,816

Down $10,368,445 (-4314%) from 2023

Trend Graphs

Balance Sheet Trend

Asset Growth2nd percentile

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

Highlighted filing

2024

Assets$0

Liabilities$0

Net Assets$0

Open 2024 Filing

Operations Trend

Revenue Growth7th percentile

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

Highlighted filing

2024

Revenue$594,156

Expenses$11,202,972

Net Income-$10,608,816

Open 2024 Filing

Filings

Most recent year

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

Open filing

Assets: $0
Liabilities: $0
Net assets: $0
Revenue: $594,156
Expenses: $11,202,972
Net income: -$10,608,816

	Balance Sheet			Operations
Year	Assets	Liabilities	Net Assets	Revenue	Expenses	Net Income
2024Detailed filing. Detailed filing data is available for this year.	$0.00	$0.00	$0.00	$0.59	$11.2	$10.6
2023Detailed filing. Detailed filing data is available for this year.	$10.6	$0.00	$10.6	$0.16	$0.40	$0.24
2022Detailed filing. Detailed filing data is available for this year.	$10.8	$0.00	$10.8	$2.48	$0.84	$1.64
2021Detailed filing. Detailed filing data is available for this year.	$7.15	$0.00	$7.15	$1.41	$0.81	$0.60
2020Detailed filing. Detailed filing data is available for this year.	$6.55	$0.00	$6.55	$0.16	$0.70	$0.54
2019Detailed filing. Detailed filing data is available for this year.	$7.09	$0.00	$7.09	$1.88	$0.71	$1.17
2016Detailed filing. Detailed filing data is available for this year.	$5.36	$0.00	$5.36	$0.10	$0.33	$0.23
2015Summary only. Only limited summary data is available for this year.	$5.58	$0.00		$0.06	$0.12	$0.06
2014Summary only. Only limited summary data is available for this year.	$5.65	$0.00		$0.03	$0.17	$0.14
2013Summary only. Only limited summary data is available for this year.	$5.79	$0.00		$0.02	$1.20	$1.19
2012Summary only. Only limited summary data is available for this year.	$6.96	$0.00		$0.04	$0.66	$0.62
2011Summary only. Only limited summary data is available for this year.	$7.58	$0.00		$0.10	$0.60	$0.70

Latest Filing Detail

Jump To

Filing Snapshot

Filing Period: Jan 1, 2024 to Dec 18, 2024
Signed: May 5, 2025
Return Version: 2024v5.1

Compensation and Service Providers

Top Officer Pay70th percentile

Employees

Name	Title	Full / Part Time	Base	Other	Total
HENRY W BERINSTEIN	Trustee	PT	$0	-	-
JOAN POSTER	Trustee	PT	$0	-	-
CYNTHIA POSTER EIGEN	Trustee	PT	$0	-	-
MEREDITH POSTER	Trustee	PT	$0	-	-

Filing and Contact Details

Filer

Filer Name: Aronson Family Foundation
EIN: 13-3693381
In Care Of: % THE FOUNDATION
Phone: 2032552380
Address: 15 WESTFAIR DRIVE, WESTPORT, CT 06880

Signing Officer

Name: Joan Poster
Title: Joan Poster
Phone: 6314144000
Signed: 2025-05-05
Discuss with paid preparer: Yes

Preparer

Firm: CBIZ Advisors LLC
Address: 730 THIRD AVENUE, NEW YORK, NY 10017
Preparer: Carolyn Mazzenga
Phone: 2124855500

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

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IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt	3	15 WESTFAIR DRIVE
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm	0	WESTPORT
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm	1	WESTPORT
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm	2	WESTPORT
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm	3	WESTPORT
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd	0	CT
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd	1	CT
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd	2	CT
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd	3	CT
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd	0	06880
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd	1	06880
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd	2	06880
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd	3	06880
IRS990PF/Organization501c3ExemptPFInd	0	X
IRS990PF/PFQualifyingDistributionsGrp/CharitableAssetsAcquisPaidAmt	0	0
IRS990PF/PFQualifyingDistributionsGrp/ExpensesAndContributionsAmt	0	11128641
IRS990PF/PFQualifyingDistributionsGrp/ProgramRelatedInvstTotalAmt	0	0
IRS990PF/PFQualifyingDistributionsGrp/QualifyingDistributionsAmt	0	11128641
IRS990PF/PFQualifyingDistributionsGrp/SetAsideCashDistriTestAmt	0	0
IRS990PF/PFQualifyingDistributionsGrp/SetAsideSuitabilityTestAmt	0	0
IRS990PF/StatementsRegardingActy4720Grp/BrrwOrLendDisqualifiedPrsnInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/BusinessHoldingsInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/FurnGoodsDisqualifiedPrsnInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/GrantsToIndividualsInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/GrantsToOrganizationsInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/InfluenceElectionInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/InfluenceLegislationInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/JeopardyInvestmentsInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/NoncharitablePurposeInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/PayCompDisqualifiedPrsnInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/PaymentToGovernmentOfficialInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/PayPremiumsPrsnlBnftCntrctInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/ProhibitedTaxShelterTransInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/RcvFndsToPayPrsnlBnftCntrctInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/SaleOrExchDisqualifiedPrsnInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/SubjToTaxRmnrtnExPrchtPymtInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/TransferAstDisqualifiedPrsnInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/UncorrectedPriorActsInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/UncorrectedPYJeopardyInvstInd	0	false
IRS990PF/StatementsRegardingActy4720Grp/UndistributedIncomePYInd	0	false
IRS990PF/StatementsRegardingActyGrp/ActivitiesNotPreviouslyRptInd	0	false
IRS990PF/StatementsRegardingActyGrp/AtLeast5000InAssetsInd	0	true
IRS990PF/StatementsRegardingActyGrp/ChangesToArticlesOrBylawsInd	0	true
IRS990PF/StatementsRegardingActyGrp/ComplyWithPublicInspRqrInd	0	true
IRS990PF/StatementsRegardingActyGrp/DonorAdvisedFundInd	0	false
IRS990PF/StatementsRegardingActyGrp/ForeignAccountsQuestionInd	0	false
IRS990PF/StatementsRegardingActyGrp/Form990PFFiledWithAttyGenInd	0	true
IRS990PF/StatementsRegardingActyGrp/LegislativePoliticalActyInd	0	false
IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/AddressLine1Txt	0	68 SOUTH SERVICE ROAD SUITE 300
IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/CityNm	0	MELVILLE
IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/StateAbbreviationCd	0	NY
IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/ZIPCd	0	11747
IRS990PF/StatementsRegardingActyGrp/MoreThan100SpentInd	0	false
IRS990PF/StatementsRegardingActyGrp/NewSubstantialContributorsInd	0	false
IRS990PF/StatementsRegardingActyGrp/OrganizationDissolvedEtcInd	0	true
IRS990PF/StatementsRegardingActyGrp/OrgReportOrRegisterStateCd	0	NY
IRS990PF/StatementsRegardingActyGrp/OwnControlledEntityInd	0	false
IRS990PF/StatementsRegardingActyGrp/PersonsWithBooksName/BusinessNameLine1Txt	0	THE FOUNDATION
IRS990PF/StatementsRegardingActyGrp/PhoneNum	0	6314144000
IRS990PF/StatementsRegardingActyGrp/PrivateOperatingFoundationInd	0	false
IRS990PF/StatementsRegardingActyGrp/Section508eRqrSatisfiedInd	0	true
IRS990PF/StatementsRegardingActyGrp/UnrelatedBusIncmOverLimitInd	0	false
IRS990PF/SummaryOfDirectChrtblActyGrp/Description1Txt	0	NONE
IRS990PF/SupplementaryInformationGrp/ContributingManagerNm	0	NONE
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt	0	329000
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt	1	10758805
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt	0	SEE STATEMENT A
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt	1	TO MAKE DISTRIBUTIONS TO PUBLIC CHARITIES UNDER IRC SECTION 509(A)(1) & (2) FOR CHARITABLE PURPOSES ALIGNED TO THE MISSION OF THE ARONSON FAMILY FOUNDATION.
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt	0	SEE STATEMENT A
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt	1	MS GLOBAL IMPACT FUNDING TRUST
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	0	PC
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	1	PC
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt	0	N/A
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt	1	NONE
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	0	SEE STATEMENT A
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	1	2000 WESTCHESTER AVENUE
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	0	WESTPORT
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	1	PURCHASE
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	0	CT
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	1	NY
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	0	06880
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	1	10577
IRS990PF/SupplementaryInformationGrp/OnlyContriToPreselectedInd	0	X
IRS990PF/SupplementaryInformationGrp/ShareholderManagerNm	0	NONE
IRS990PF/SupplementaryInformationGrp/TotalGrantOrContriPdDurYrAmt	0	11087805
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/LoansOrLoanGuaranteesInd	0	false
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/PerformanceOfServicesEtcInd	0	false
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/PurchaseOfAssetsNonchrtblEOInd	0	false
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/ReimbursementArrangementsInd	0	false
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/RelationshipsNonchrtblEOInd	0	false
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/RentalOfFacilitiesOthAssetsInd	0	false
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/SalesOrExchangesOfAssetsInd	0	false
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/SharingOfFacilitiesEtcInd	0	false
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/TrnsfrOfCashToNonchrtblEOInd	0	false
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/TrnsfrOtherAssetNonchrtblEOInd	0	false
IRS990PF/UndistributedIncomeGrp/AppliedToCurrentYearAmt	0	467970
IRS990PF/UndistributedIncomeGrp/AppliedToYear1Amt	0	0
IRS990PF/UndistributedIncomeGrp/DistributableAsAdjustedAmt	0	467970
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr2Amt	0	221692
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr3Amt	0	149406
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovToNextYrAmt	0	11031769
IRS990PF/UndistributedIncomeGrp/ExcessFromCurrentYearAmt	0	10660671
IRS990PF/UndistributedIncomeGrp/ExcessFromYear2Amt	0	221692
IRS990PF/UndistributedIncomeGrp/ExcessFromYear3Amt	0	149406
IRS990PF/UndistributedIncomeGrp/PriorYear1Yr	0	2022
IRS990PF/UndistributedIncomeGrp/PriorYear2Yr	0	2021
IRS990PF/UndistributedIncomeGrp/PriorYear3Yr	0	2020
IRS990PF/UndistributedIncomeGrp/PriorYearUndistributedIncmAmt	0	0
IRS990PF/UndistributedIncomeGrp/QualifyingDistributionsAmt	0	11128641
IRS990PF/UndistributedIncomeGrp/RemainingDistriFromCorpusAmt	0	10660671
IRS990PF/UndistributedIncomeGrp/Taxable1Amt	0	0
IRS990PF/UndistributedIncomeGrp/Taxable2Amt	0	0
IRS990PF/UndistributedIncomeGrp/TotalCorpusAmt	0	11031769
IRS990PF/UndistributedIncomeGrp/TotalExcessDistributionCyovAmt	0	371098
IRS990PF/UndistributedIncomeGrp/TotalForPriorYearsAmt	0	0
IRS990PF/UndistributedIncomeGrp/UndistributedIncomeCYAmt	0	0
IRS990PF/UndistributedIncomeGrp/UndistributedIncomePYAmt	0	0
LegalFeesSchedule/LegalFeesGrp/CategoryTxt	0	LEGAL FEES
LegalFeesSchedule/LegalFeesGrp/DisbursementsCharitablePrpsAmt	0	7725
LegalFeesSchedule/LegalFeesGrp/LegalFeesAmt	0	7725
LegalFeesSchedule/LegalFeesGrp/NetInvestmentIncomeAmt	0	0
OtherIncomeSchedule2/OtherIncomeDetail/Desc	0	RECOVERY OF PRIOR YEAR DISTRIBUTION
OtherProfessionalFeesSchedule/OtherProfessionalFeesDetail/Amt	0	41144
OtherProfessionalFeesSchedule/OtherProfessionalFeesDetail/CategoryTxt	0	INVESTMENT ADV FEES
OtherProfessionalFeesSchedule/OtherProfessionalFeesDetail/NetInvestmentIncomeAmt	0	41144
ReturnHeader/BuildTS	0	2025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd	0	true
ReturnHeader/BusinessOfficerGrp/PersonNm	0	JOAN POSTER
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt	0	JOAN POSTER
ReturnHeader/BusinessOfficerGrp/PhoneNum	0	6314144000
ReturnHeader/BusinessOfficerGrp/SignatureDt	0	2025-05-05
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt	0	ARONSON FAMILY FOUNDATION
ReturnHeader/Filer/BusinessNameControlTxt	0	ARON
ReturnHeader/Filer/EIN	0	133693381
ReturnHeader/Filer/InCareOfNm	0	% THE FOUNDATION
ReturnHeader/Filer/PhoneNum	0	2032552380
ReturnHeader/Filer/USAddress/AddressLine1Txt	0	15 WESTFAIR DRIVE
ReturnHeader/Filer/USAddress/CityNm	0	WESTPORT
ReturnHeader/Filer/USAddress/StateAbbreviationCd	0	CT
ReturnHeader/Filer/USAddress/ZIPCd	0	06880
ReturnHeader/IRSResponsiblePrtyInfoCurrInd	0	true
ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt	0	CBIZ Advisors LLC
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt	0	730 THIRD AVENUE
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm	0	NEW YORK
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd	0	NY
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd	0	10017
ReturnHeader/PreparerPersonGrp/PhoneNum	0	2124855500
ReturnHeader/PreparerPersonGrp/PreparationDt	0	2025-05-02
ReturnHeader/PreparerPersonGrp/PreparerPersonNm	0	CAROLYN MAZZENGA
ReturnHeader/ReturnTs	0	2025-05-14T08:26:08-04:00
ReturnHeader/ReturnTypeCd	0	990PF
ReturnHeader/TaxPeriodBeginDt	0	2024-01-01
ReturnHeader/TaxPeriodEndDt	0	2024-12-18
ReturnHeader/TaxYr	0	2024

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