A & C De Coster Foundation

EIN 86-2043687 • Greenwich, CT

38 Woodside DriveGreenwich, CT 06830

Siviq Scores

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

0.00x

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

$5M-$10M nonprofits • Source year 2025

0.00x

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

$5M-$10M nonprofits • Source year 2025

-2.1%

Higher net margin than 33% of similar nonprofits.

$5M-$10M nonprofits • Source year 2025

$1,023

Higher top officer pay than 65% of similar nonprofits.

Top officer pay equals 0.2% of source-year revenue.

$5M-$10M nonprofits • Source year 2025

-0.3%

Faster asset growth than 34% of similar nonprofits.

$5M-$10M nonprofits • Annualized from 2023 to 2025

No value available

A valid growth rate could not be computed from the available filing history.

Annualized from 2023 to 2025

Balance Sheet

Liabilities / Assets24th percentile

Assets

Down

$8,912,759

Down $9,076 (-0.1%) from 2024

Liabilities

Down

Down $1 (-100%) from 2024

Net Assets

Down

$8,912,759

Down $9,076 (-0.1%) from 2024

Operations

Liabilities / Revenue22nd percentile Net Margin33rd percentile

Revenue

$440,968

Up $45,553 (+12%) from 2024

Expenses

$450,044

Up $9,508 (+2.2%) from 2024

Net Income

-$9,076

Up $36,045 (+80%) from 2024

Trend Graphs

Balance Sheet Trend

Asset Growth34th percentile

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

Highlighted filing

2025

Assets$8,912,759

Liabilities$0

Net Assets$8,912,759

Open 2025 Filing

Operations Trend

Revenue GrowthScore unavailable

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

Highlighted filing

2025

Revenue$440,968

Expenses$450,044

Net Income-$9,076

Open 2025 Filing

Filings

Most recent year

2025 • Form 990PFDetailed filing. Detailed filing data is available for this year.

Open filing

Assets: $8,912,759
Liabilities: $0
Net assets: $8,912,759
Revenue: $440,968
Expenses: $450,044
Net income: -$9,076

	Balance Sheet			Operations
Year	Assets	Liabilities	Net Assets	Revenue	Expenses	Net Income
2025Detailed filing. Detailed filing data is available for this year.	$8.91	$0.00	$8.91	$0.44	$0.45	$0.01
2024Detailed filing. Detailed filing data is available for this year.	$8.92	$0.00	$8.92	$0.40	$0.44	$0.05
2023Detailed filing. Detailed filing data is available for this year.	$8.97	$0.00	$8.97	$0.25	$0.32	$0.57
2022Detailed filing. Detailed filing data is available for this year.	$9.54	$0.00	$9.54	$9.55	$0.01	$9.54

Latest Filing Detail

Jump To

Filing Snapshot

Filing Period: Feb 1, 2024 to Jan 31, 2025
Signed: May 15, 2025
Return Version: 2024v5.1

Compensation and Service Providers

Top Officer Pay65th percentile

Employees

Name	Title	Full / Part Time	Base	Other	Total
Alain De Coster	Trustee	PT	$0	$1,023	$1,023
Catherine De Coster	Trustee	PT	$0	-	-

Filing and Contact Details

Filer

Filer Name: A & C De Coster Foundation
EIN: 86-2043687
Phone: 2038691200
Address: 38 Woodside Drive, Greenwich, CT 06830

Signing Officer

Name: Alain De Coster
Title: Trustee
Phone: 2038691200
Signed: 2025-05-15
Discuss with paid preparer: Yes

Preparer

Firm: Cummings & Lockwood LLC
Address: PO Box 2505, Greenwich, CT 06836
Preparer: Albert C Rua
Phone: 2038691200

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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/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	5	PC
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	6	PC
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	7	PC
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	8	PC
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt	0	None
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt	1	None
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt	2	None
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt	3	None
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt	4	None
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt	5	None
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt	6	None
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt	7	None
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt	8	None
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	0	63 Mason Street
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	1	15 East Putnam Avenue
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	2	925 East 37th Street
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	3	144 Danbury Road
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	4	1 Salem Street
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	5	1785 Stratford Avenue
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	6	551 5th Ave Suite 2400
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	7	248 E Putnam Ave
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	8	139 E Putnam Ave Suite 220
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	0	Greenwich
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	1	Greenwich
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	2	Broooklyn
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	3	Wilton
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	4	Cos Cob
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	5	Stratford
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	6	New York
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	7	Greenwich
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	8	Greenwich
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	0	CT
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	1	CT
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	2	NY
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	3	CT
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	4	CT
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	5	CT
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	6	NY
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	7	CT
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	8	CT
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	0	06830
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	1	06830
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	2	11210
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	3	06897
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	4	06807
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	5	06615
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	6	10176
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	7	06830
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	8	06830
IRS990PF/SupplementaryInformationGrp/OnlyContriToPreselectedInd	0	X
IRS990PF/SupplementaryInformationGrp/TotalGrantOrContriApprvFutAmt	0	0
IRS990PF/SupplementaryInformationGrp/TotalGrantOrContriPdDurYrAmt	0	435000
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/LoansOrLoanGuaranteesInd	0	0
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/PerformanceOfServicesEtcInd	0	0
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/PurchaseOfAssetsNonchrtblEOInd	0	0
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/ReimbursementArrangementsInd	0	0
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/RelationshipsNonchrtblEOInd	0	0
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/RentalOfFacilitiesOthAssetsInd	0	0
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/SalesOrExchangesOfAssetsInd	0	0
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/SharingOfFacilitiesEtcInd	0	0
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/TrnsfrOfCashToNonchrtblEOInd	0	0
IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/TrnsfrOtherAssetNonchrtblEOInd	0	0
IRS990PF/UndistributedIncomeGrp/AppliedToCurrentYearAmt	0	1751
IRS990PF/UndistributedIncomeGrp/AppliedToPriorYearsAmt	0	0
IRS990PF/UndistributedIncomeGrp/AppliedToYear1Amt	0	434272
IRS990PF/UndistributedIncomeGrp/CorpusDistri170b1EOr4942g3Amt	0	0
IRS990PF/UndistributedIncomeGrp/DistributableAsAdjustedAmt	0	455565
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovAppCYAmt	0	0
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovAppCYCorpusAmt	0	0
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovFromYr5Amt	0	0
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovToNextYrAmt	0	0
IRS990PF/UndistributedIncomeGrp/PriorYearDeficiencyOrTaxAmt	0	0
IRS990PF/UndistributedIncomeGrp/PriorYearUndistributedIncmAmt	0	0
IRS990PF/UndistributedIncomeGrp/QualifyingDistributionsAmt	0	436023
IRS990PF/UndistributedIncomeGrp/RemainingDistriFromCorpusAmt	0	0
IRS990PF/UndistributedIncomeGrp/Taxable1Amt	0	0
IRS990PF/UndistributedIncomeGrp/Taxable2Amt	0	0
IRS990PF/UndistributedIncomeGrp/TotalCorpusAmt	0	0
IRS990PF/UndistributedIncomeGrp/TotalExcessDistributionCyovAmt	0	0
IRS990PF/UndistributedIncomeGrp/TotalForPriorYearsAmt	0	0
IRS990PF/UndistributedIncomeGrp/TreatedAsDistriFromCorpusAmt	0	0
IRS990PF/UndistributedIncomeGrp/UndistributedIncomeCYAmt	0	453814
IRS990PF/UndistributedIncomeGrp/UndistributedIncomePYAmt	0	434272
LegalFeesSchedule/LegalFeesGrp/CategoryTxt	0	Cummings & Lockwood
LegalFeesSchedule/LegalFeesGrp/DisbursementsCharitablePrpsAmt	0	0
LegalFeesSchedule/LegalFeesGrp/LegalFeesAmt	0	3000
LegalFeesSchedule/LegalFeesGrp/NetInvestmentIncomeAmt	0	3000
TaxesSchedule/TaxesDetail/Amt	0	11021
TaxesSchedule/TaxesDetail/CategoryTxt	0	US Treasury - Excise Tax
TaxesSchedule/TaxesDetail/DisbursementsCharitablePrpsAmt	0	0
TaxesSchedule/TaxesDetail/NetInvestmentIncomeAmt	0	0
ReturnHeader/BuildTS	0	2025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd	0	1
ReturnHeader/BusinessOfficerGrp/PersonNm	0	Alain De Coster
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt	0	Trustee
ReturnHeader/BusinessOfficerGrp/PhoneNum	0	2038691200
ReturnHeader/BusinessOfficerGrp/SignatureDt	0	2025-05-15
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt	0	A & C De Coster Foundation
ReturnHeader/Filer/BusinessNameControlTxt	0	A&CD
ReturnHeader/Filer/EIN	0	862043687
ReturnHeader/Filer/PhoneNum	0	2038691200
ReturnHeader/Filer/USAddress/AddressLine1Txt	0	38 Woodside Drive
ReturnHeader/Filer/USAddress/CityNm	0	Greenwich
ReturnHeader/Filer/USAddress/StateAbbreviationCd	0	CT
ReturnHeader/Filer/USAddress/ZIPCd	0	06830
ReturnHeader/IRSResponsiblePrtyInfoCurrInd	0	0
ReturnHeader/PreparerFirmGrp/PreparerFirmEIN	0	060312590
ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt	0	Cummings & Lockwood LLC
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt	0	PO Box 2505
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm	0	Greenwich
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd	0	CT
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd	0	06836
ReturnHeader/PreparerPersonGrp/PhoneNum	0	2038691200
ReturnHeader/PreparerPersonGrp/PreparerPersonNm	0	Albert C Rua
ReturnHeader/ReturnTs	0	2025-06-12T08:02:03-05:00
ReturnHeader/ReturnTypeCd	0	990PF
ReturnHeader/TaxPeriodBeginDt	0	2024-02-01
ReturnHeader/TaxPeriodEndDt	0	2025-01-31
ReturnHeader/TaxYr	0	2024

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