Civic Intelligence

The Mayer Family Foundation

EIN 13-3531984 • Greenwich, CT

Pub. 78 Eligible
10 Creamer Hill RoadGreenwich, CT 06831
Siviq Scores

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

Liabilities / Assets

32nd percentile

0.00x

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

$1M-$5M nonprofits • Source year 2024

Liabilities / Revenue

33rd percentile

0.00x

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

$1M-$5M nonprofits • Source year 2024

Net Margin

2nd percentile

-219%

Higher net margin than 2% of similar nonprofits.

$1M-$5M nonprofits • Source year 2024

Top Officer Pay

47th percentile

$0

Higher top officer pay than 47% of similar nonprofits.

$1M-$5M nonprofits • Source year 2025

Asset Growth

11th percentile

-14%

Faster asset growth than 11% of similar nonprofits.

$1M-$5M nonprofits • Annualized from 2023 to 2024

Revenue Growth

2nd percentile

-82%

Faster revenue growth than 2% of similar nonprofits.

$1M-$5M nonprofits • Annualized from 2023 to 2024

Balance Sheet
Liabilities / Assets32nd percentile

Using 2024 Form 990PF data because the latest 2025 filing does not report standard financial totals.

Assets

Down

$3,580,343

Down $606,002 (-14%) from 2023

Liabilities

Flat

$0

Flat from 2023

Net Assets

Down

$3,580,343

Down $606,002 (-14%) from 2023

Operations
Liabilities / Revenue33rd percentileNet Margin2nd percentile

Revenue

Down

$277,208

Down $1,291,297 (-82%) from 2023

Expenses

Up

$883,210

Up $71,990 (+8.9%) from 2023

Net Income

Down

-$606,002

Down $1,363,287 (-180%) from 2023

Trend Graphs

Balance Sheet Trend

Asset Growth11th percentile

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

$6.0M$4.0M$2.0M$0Assets 2011: $675,997Liabilities 2011: $02011Assets 2012: $613,632Liabilities 2012: $02012Assets 2013: $582,264Liabilities 2013: $02013Assets 2014: $559,190Liabilities 2014: $02014Assets 2015: $634,594Liabilities 2015: $02015Assets 2019: $5,284,579Liabilities 2019: $0Net Assets 2019: $5,284,5792019Assets 2020: $1,805,879Liabilities 2020: $0Net Assets 2020: $1,805,8792020Assets 2021: $2,073,166Liabilities 2021: $0Net Assets 2021: $2,073,1662021Assets 2022: $3,929,060Liabilities 2022: $500,000Net Assets 2022: $3,429,0602022Assets 2023: $4,186,345Liabilities 2023: $0Net Assets 2023: $4,186,3452023Assets 2024: $3,580,343Liabilities 2024: $0Net Assets 2024: $3,580,3432024

Latest loaded filing

2024

Assets$3,580,343
Liabilities$0
Net Assets$3,580,343
Open 2024 Filing

Operations Trend

Revenue Growth2nd percentile

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

$2.0M$0-$2.0M-$4.0MRevenue 2011: -$18,158Expenses 2011: $104,312Net Income 2011: -$122,4702011Revenue 2012: $34,335Expenses 2012: $96,700Net Income 2012: -$62,3652012Revenue 2013: $62,407Expenses 2013: $93,775Net Income 2013: -$31,3682013Revenue 2014: $53,416Expenses 2014: $76,490Net Income 2014: -$23,0742014Revenue 2015: $165,125Expenses 2015: $89,721Net Income 2015: $75,4042015Revenue 2019: $1,105,119Expenses 2019: $277,840Net Income 2019: $827,2792019Revenue 2020: -$1,703,707Expenses 2020: $902,426Net Income 2020: -$2,606,1332020Revenue 2021: $995,330Expenses 2021: $728,043Net Income 2021: $267,2872021Revenue 2022: $1,614,534Expenses 2022: $289,925Net Income 2022: $1,324,6092022Revenue 2023: $1,568,505Expenses 2023: $811,220Net Income 2023: $757,2852023Revenue 2024: $277,208Expenses 2024: $883,210Net Income 2024: -$606,0022024

Latest loaded filing

2024

Revenue$277,208
Expenses$883,210
Net Income-$606,002
Open 2024 Filing

Filings

Most recent year

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

Open filing
Assets
-
Liabilities
-
Net assets
-
Revenue
-
Expenses
-
Net income
-
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2025Detailed filing. Detailed filing data is available for this year.
2024Detailed filing. Detailed filing data is available for this year.$3.58$0.00$3.58$0.28$0.88$0.61
2023Detailed filing. Detailed filing data is available for this year.$4.19$0.00$4.19$1.57$0.81$0.76
2022Detailed filing. Detailed filing data is available for this year.$3.93$0.50$3.43$1.61$0.29$1.32
2021Detailed filing. Detailed filing data is available for this year.$2.07$0.00$2.07$1.00$0.73$0.27
2020Detailed filing. Detailed filing data is available for this year.$1.81$0.00$1.81$1.70$0.90$2.61
2019Detailed filing. Detailed filing data is available for this year.$5.28$0.00$5.28$1.11$0.28$0.83
2015Summary only. Only limited summary data is available for this year.$0.63$0.00$0.17$0.09$0.08
2014Summary only. Only limited summary data is available for this year.$0.56$0.00$0.05$0.08$0.02
2013Summary only. Only limited summary data is available for this year.$0.58$0.00$0.06$0.09$0.03
2012Summary only. Only limited summary data is available for this year.$0.61$0.00$0.03$0.10$0.06
2011Summary only. Only limited summary data is available for this year.$0.68$0.00$0.02$0.10$0.12
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2025 to Dec 31, 2025
Signed
Apr 22, 2026
Return Version
2025v4.1
Compensation and Service Providers
Top Officer Pay47th percentile

Employees

NameTitleFull / Part TimeBaseOtherTotal
CHARLES B MAYER JRTrustee-$0--
CHARLES B MAYERTrustee-$0--
Grants and Assistance

Foundation Grants and Related Investments

TypeRecipientPurposeStatusLocationAmount
Paid GrantSEE LIST ATTACHEDGENERAL SUPPORT-SEE LIST ATTACHED, CT, US$367,729
Filing and Contact Details

Filer

Filer Name
The Mayer Family Foundation
EIN
13-3531984
In Care Of
% EY US LLP
Phone
2127733000
Address
10 Creamer Hill Road, Greenwich, CT 06831

Signing Officer

Name
Charles Mayer
Title
Trustee
Phone
2127733000
Signed
2026-04-22
Discuss with paid preparer
Yes

Preparer

Firm
Ernst & Young US Llp
Address
ONE MANHATTAN WEST, NEW YORK, NY 10001-8604
Preparer
Christine W Diionna
Phone
2127733000
Raw XML Appendix271 raw XML fields

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/TrnsfrTransRlnNonchrtblEOGrp/TrnsfrOtherAssetNonchrtblEOInd0false
IRS990PF/UndistributedIncomeGrp/AppliedToCurrentYearAmt0372289
IRS990PF/UndistributedIncomeGrp/AppliedToYear1Amt00
IRS990PF/UndistributedIncomeGrp/DistributableAsAdjustedAmt0450619
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovAppCYAmt078330
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr1Amt0433620
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr2Amt0525811
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr3Amt089576
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr4Amt0618618
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr5Amt0542114
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovAppCYCorpusAmt078330
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovFromYr5Amt0463784
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovToNextYrAmt01667625
IRS990PF/UndistributedIncomeGrp/ExcessFromYear1Amt0433620
IRS990PF/UndistributedIncomeGrp/ExcessFromYear2Amt0525811
IRS990PF/UndistributedIncomeGrp/ExcessFromYear3Amt089576
IRS990PF/UndistributedIncomeGrp/ExcessFromYear4Amt0618618
IRS990PF/UndistributedIncomeGrp/PriorYear1Yr02023
IRS990PF/UndistributedIncomeGrp/PriorYear2Yr02022
IRS990PF/UndistributedIncomeGrp/PriorYear3Yr02021
IRS990PF/UndistributedIncomeGrp/PriorYearUndistributedIncmAmt00
IRS990PF/UndistributedIncomeGrp/QualifyingDistributionsAmt0372289
IRS990PF/UndistributedIncomeGrp/RemainingDistriFromCorpusAmt00
IRS990PF/UndistributedIncomeGrp/Taxable1Amt00
IRS990PF/UndistributedIncomeGrp/Taxable2Amt00
IRS990PF/UndistributedIncomeGrp/TotalCorpusAmt02131409
IRS990PF/UndistributedIncomeGrp/TotalExcessDistributionCyovAmt02209739
IRS990PF/UndistributedIncomeGrp/TotalForPriorYearsAmt00
IRS990PF/UndistributedIncomeGrp/UndistributedIncomeCYAmt00
IRS990PF/UndistributedIncomeGrp/UndistributedIncomePYAmt00
OtherExpensesSchedule/OtherExpensesScheduleGrp/Desc0BANK FEES
OtherExpensesSchedule/OtherExpensesScheduleGrp/DisbursementsCharitablePrpsAmt060
OtherExpensesSchedule/OtherExpensesScheduleGrp/RevenueAndExpensesPerBooksAmt060
ReturnHeader/BuildTS02025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd0true
ReturnHeader/BusinessOfficerGrp/PersonNm0Charles Mayer
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt0TRUSTEE
ReturnHeader/BusinessOfficerGrp/PhoneNum02127733000
ReturnHeader/BusinessOfficerGrp/SignatureDt02026-04-22
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt0The Mayer Family Foundation
ReturnHeader/Filer/BusinessNameControlTxt0MAYE
ReturnHeader/Filer/EIN0133531984
ReturnHeader/Filer/InCareOfNm0% EY US LLP
ReturnHeader/Filer/PhoneNum02127733000
ReturnHeader/Filer/USAddress/AddressLine1Txt010 Creamer Hill Road
ReturnHeader/Filer/USAddress/CityNm0Greenwich
ReturnHeader/Filer/USAddress/StateAbbreviationCd0CT
ReturnHeader/Filer/USAddress/ZIPCd006831
ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt0ERNST & YOUNG US LLP
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt0ONE MANHATTAN WEST
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm0NEW YORK
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd0NY
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd0100018604
ReturnHeader/PreparerPersonGrp/PhoneNum02127733000
ReturnHeader/PreparerPersonGrp/PreparationDt02026-04-09
ReturnHeader/PreparerPersonGrp/PreparerPersonNm0CHRISTINE W DIIONNA
ReturnHeader/ReturnTs02026-04-23T00:47:10-05:00
ReturnHeader/ReturnTypeCd0990PF
ReturnHeader/TaxPeriodBeginDt02025-01-01
ReturnHeader/TaxPeriodEndDt02025-12-31
ReturnHeader/TaxYr02025

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