MIDDENDORF FAMILY FOUNDATION

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Cite this

Plain text MIDDENDORF FAMILY FOUNDATION. furp.org, nonprofit organization profile, tax years 2014–2025. https://furp.org/org/middendorf-family-foundation-233069847. Retrieved 2026-11-03.

APA furp.org. (n.d.). MIDDENDORF FAMILY FOUNDATION [Nonprofit organization profile; tax years 2014–2025]. Retrieved November 3, 2026, from https://furp.org/org/middendorf-family-foundation-233069847

MLA “MIDDENDORF FAMILY FOUNDATION.” furp.org, tax years 2014–2025, https://furp.org/org/middendorf-family-foundation-233069847. Accessed 3 Nov. 2026.

Retrieved 2026-11-03; covers tax years 2014–2025. Data: furp.org, CC BY 4.0.

2025 · Form 990PF · revenue $1.2M · expenses $1.4M · assets $6.2M

EIN
23-3069847
Address
PO BOX 1297, NEW YORK, NY 10008-1297
NTEE code
T21
Exempt type
501(c)(3): charitable, religious, educational, scientific or literary (trust)
Ruling date
March 2001 (when the IRS recognized its exemption)
IRS status
Exempt (unconditional) (IRS Business Master File) IRS data ↗
Tax-deductible donations
Yes: listed in IRS Publication 78 (private foundation) Pub 78 ↗
Foundation status
Private non-operating foundation
Cross-check
ProPublica Nonprofit Explorer

Each tax year counts once: when a return was amended, only the latest return for that period is used below (superseded returns stay listed, greyed, under Finances).

People paid by the organization

4 people paid across every filing: current people first, then by total pay from this organization. Organizations counts every nonprofit each person appears on.

NameLatest titleYearsLatest year payTotal pay from hereOrganizations
Deutsche Bank Trust Company N A Institution TRUSTEE2025 $123,940$123,940 66
Deutsche Trust Bank Cimpany N A Institution (former) CURRENT TRUSTEE2020-2023 $114,303$431,407 1
Bank Of America Institution (former) TRUSTEE2014-2018 $82,527$310,291 4369
Deutsche Trust Company Na Institution (former) TRUSTEE2024 $121,337$121,337 36

Officers and directors, no compensation reported

2 people listed on the returns with $0 (or no amount) in every compensation column: current people first. Hours are as filed on the latest return each person appears on.

NameLatest titleYearsHrs/wk (latest)CompensationOrganizations
Patricia A Middendorf CO-TRUSTEE2014-2025 1 $0 reported 1
Frank J Middendorf (former) CO-TRUSTEE2014-2024 1 $0 reported 1

People by year

2025 · 2 people listed · 1 paid, $124K
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
DEUTSCHE BANK TRUST COMPANY N A Institution TRUSTEE1 $123,940-- $123,94066
PATRICIA A MIDDENDORF CO-TRUSTEE1 $0-- $01
2024 · 3 people listed · 1 paid, $121K
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
DEUTSCHE TRUST COMPANY NA Institution TRUSTEE3 $121,337-- $121,33736
FRANK J MIDDENDORF CO-TRUSTEE1 $0-- $01
PATRICIA A MIDDENDORF CO-TRUSTEE1 $0-- $01
2023 · 3 people listed · 1 paid, $114K
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
DEUTSCHE TRUST BANK CIMPANY N A Institution CURRENT TRUSTEE1 $114,303-- $114,3031
FRANK J MIDDENDORF CO-TRUSTEE1 $0-- $01
PATRICIA A MIDDENDORF CO-TRUSTEE1 $0-- $01
2022 · 3 people listed · 1 paid, $114K
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
DEUTSCHE TRUST BANK CIMPANY N A Institution CURRENT TRUSTEE1 $114,324-- $114,3241
FRANK J MIDDENDORF CO-TRUSTEE1 $0-- $01
PATRICIA A MIDDENDORF CO-TRUSTEE1 $0-- $01
2021 · 3 people listed · 1 paid, $112K
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
DEUTSCHE TRUST BANK CIMPANY N A Institution CURRENT TRUSTEE1 $112,289-- $112,2891
FRANK J MIDDENDORF CO-TRUSTEE1 $0-- $01
PATRICIA A MIDDENDORF CO-TRUSTEE1 $0-- $01
2020 · 3 people listed · 1 paid, $90K
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
DEUTSCHE TRUST BANK CIMPANY N A Institution CURRENT TRUSTEE1 $90,491-- $90,4911
FRANK J MIDDENDORF CO-TRUSTEE1 $0-- $01
PATRICIA A MIDDENDORF CO-TRUSTEE1 $0-- $01
2018 · 3 people listed · 1 paid, $83K
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
BANK OF AMERICA N A Institution TRUSTEE1 $82,527-- $82,5274369
FRANK J MIDDENDORF CO-TRUSTEE1 $0-- $01
PATRICIA A MIDDENDORF CO-TRUSTEE1 $0-- $01
2016 · 3 people listed · 1 paid, $77K
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
BANK OF AMERICA N A Institution TRUSTEE1 $76,697-- $76,6974369
FRANK J MIDDENDORF CO-TRUSTEE1 $0-- $01
PATRICIA A MIDDENDORF CO-TRUSTEE1 $0-- $01
2015 · 3 people listed · 1 paid, $76K
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
BANK OF AMERICA N A Institution TRUSTEE1 $75,874-- $75,8744369
FRANK J MIDDENDORF CO-TRUSTEE1 $0-- $01
PATRICIA A MIDDENDORF CO-TRUSTEE1 $0-- $01
2014 · 3 people listed · 1 paid, $75K
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
BANK OF AMERICA N A Institution TRUSTEE1 $75,193-- $75,1934369
FRANK J MIDDENDORF CO-TRUSTEE1 $0-- $01
PATRICIA A MIDDENDORF CO-TRUSTEE1 $0-- $01

Highest-paid independent contractors

No independent contractors reported.

Who the money went to

Grants this organization reported paying: Schedule I Part II of the Form 990, or the grants-paid list on the 990-PF. Open a year for every recipient. Recipients link to their own page when the grant names an EIN we have (990-PF grants list no EIN, so those link only on an exact, unique name and state). Grants to individuals are counted; their names are not shown.

2025 · 12 grants to organizations · $1.3M
2024 · 13 grants to organizations · $975K
2023 · 12 grants to organizations · $825K
2022 · 13 grants to organizations · $570K
2021 · 12 grants to organizations · $810K
2020 · 12 grants to organizations · $760K
2018 · 14 grants to organizations · $570K
2016 · 14 grants to organizations · $430K
2015 · 13 grants to organizations · $540K
2014 · 13 grants to organizations · $420K

Negative amounts are returned or refunded grants; they are listed last and left out of the totals of grants paid.

Who gave

Contributors listed on Schedule B of the Form 990-PF: name, city and state as filed (street addresses are not shown), with total and noncash contributions for the year. A link to an organization's page is tagged Fuzzy with its name-similarity score (0 to 1) when it rests on name and state; Schedule B lists no EIN, so no link here is an exact identifier match.

2025 · 1 contributor · $351K
#ContributorTypeCity, stateTotalNoncashSource
1 PATRICIA A MIDDENDORF Person NEW YORK, NY $351,400- Form 990PF Sch. B, 2025 · filing
2023 · 1 contributor · $349K
#ContributorTypeCity, stateTotalNoncashSource
1 FRANK J MIDDENDORF Person NEW YORK, NY $349,206$349,206 Form 990PF Sch. B, 2023 · filing
2022 · 1 contributor · $400K
#ContributorTypeCity, stateTotalNoncashSource
1 FRANK J MIDDENDORF Person NEW YORK, NY $400,004$400,004 Form 990PF Sch. B, 2022 · filing
2018 · 1 contributor · $341K
#ContributorTypeCity, stateTotalNoncashSource
1 FRANK J MIDDENDORF Person PROVDENCE, RI $341,129$341,129 Form 990PF Sch. B, 2018 · filing
2016 · 1 contributor · $299K
#ContributorTypeCity, stateTotalNoncashSource
1 FRANK J MIDDENDORF Person PROVDENCE, RI $299,252$299,252 Form 990PF Sch. B, 2016 · filing
2015 · 1 contributor · $498K
#ContributorTypeCity, stateTotalNoncashSource
1 FRANK J MIDDENDORF Person PROVDENCE, RI $497,962$497,962 Form 990PF Sch. B, 2015 · filing

Contributors listed here are as reported on the filing. Unusual is not the same as improper. Many of these patterns have ordinary explanations. Check the filing.

Finances

Newest first. Each filing: its name on one row, its figures on the row beneath. Greyed filings are superseded by a later return for the same period and are left out everywhere else on this page.

RevenueExpensesAssetsNet assetsContributionsProgram revenueOfficer payEmployeesVolunteers
2025 · Form 990PF period ending 2025-12-31 · view filing · original 990 ↗
$1,151,815$1,407,700 $6,233,935$6,233,935 $351,400- $123,940--
2024 · Form 990PF period ending 2024-12-31 · view filing · original 990 ↗
$1,039,524$1,133,127 $6,838,917$6,838,917 -- $121,337--
2023 · Form 990PF period ending 2023-12-31 · view filing · original 990 ↗
$1,659,955$950,756 $6,980,428$6,980,428 $349,206- $114,303--
2022 · Form 990PF period ending 2022-12-31 · view filing · original 990 ↗
$699,578$694,901 $6,545,041$6,545,041 $400,004- $114,324--
2021 · Form 990PF period ending 2021-12-31 · view filing · original 990 ↗
$91,574$934,415 $6,970,672$6,970,672 -- $112,289--
2020 · Form 990PF period ending 2020-12-31 · view filing · original 990 ↗
$580,340$910,345 $8,191,014$8,191,014 -- $90,491--
2018 · Form 990PF period ending 2018-12-31 · view filing · original 990 ↗
$859,547$666,478 $8,250,484$8,250,484 $341,129- $82,527--
2016 · Form 990PF period ending 2016-12-31 · view filing · original 990 ↗
$704,007$523,007 $8,492,079$8,492,079 $299,252- $76,697--
2015 · Form 990PF period ending 2015-12-31 · view filing · original 990 ↗
$1,235,202$625,438 $8,611,139$8,611,139 $497,962- $75,874--
2014 · Form 990PF period ending 2014-12-31 · view filing · original 990 ↗
$725,680$504,046 $8,500,296$8,500,296 -- $75,193--

Funders of this organization

Not reported: no grants to this organization appear in the filings we have (tax years 2010 to 2025).

Nearby + Similar BETA

Organizations like this one: what they do and who they are linked to

Same category: NTEE code and revenue

Ranked without any AI: same NTEE code first, then the same NTEE group; then revenue within 2x, 5x or 10x; then the same state; then similar name and mission text. Same state only · More (100)

OrganizationStateNTEELatest revenueLatest expensesTop-paid titleTop payWhy similar
LTGE FAMILY FOUNDATIONNYT21 $727,665$241,460 Trustee$0 Same NTEE code T21, revenue within 2x, same state, similar name
KRAUS FAMILY FOUNDATIONNYT21 $987,433$2,324,830 TRUSTEE$0 Same NTEE code T21, revenue within 2x, same state, similar name
ADELSON FAMILY FOUNDATIONNYT21 $1,877,694$817,833 TRUSTEE$0 Same NTEE code T21, revenue within 2x, same state, similar name
FEIN ROSS FAMILY FOUNDATIONNYT21 $619,128$130,122 PRESIDENT$0 Same NTEE code T21, revenue within 2x, same state, similar name
WYCKOFF FAMILY FOUNDATION INCNYT21 $1,076,657$10,198,820 PRESIDENT$0 Same NTEE code T21, revenue within 2x, same state, similar name
ALLEN A STEIN FAMILY FOUNDATIONNYT21 $1,166,381$668,520 VP, DIRECTOR$40,000 Same NTEE code T21, revenue within 2x, same state, similar name
MCU FOUNDATIONNYT21 $1,122,953$164,607 DIRECTOR (AS OF 08/2024)$0 Same NTEE code T21, revenue within 2x, same state
THOMAS D AND DENISE R STERN FAMILY FOUNDATIONNYT21 $1,895,647$1,654,193 TRUSTEE$0 Same NTEE code T21, revenue within 2x, same state
M F K FOUNDATION INCNYT21 $623,611$570,857 Trustee$0 Same NTEE code T21, revenue within 2x, same state
PAJWELL FOUNDATIONNYT21 $952,621$346,480 President$0 Same NTEE code T21, revenue within 2x, same state
ELSEVIER FOUNDATIONNYT21 $982,511$1,258,461 EXTERNAL BOARD MEMBER$0 Same NTEE code T21, revenue within 2x, same state
HOLLIDAY FOUNDATIONNYT21 $626,281$374,329 PRESIDENT$0 Same NTEE code T21, revenue within 2x, same state
CHESTER FOUNDATION TRNYT21 $1,698,004$695,763 TRUSTEE$0 Same NTEE code T21, revenue within 2x, same state
NATIONAL GRID FOUNDATIONNYT21 $2,113,602$5,546,659 BOARD MEMBER$2,103 Same NTEE code T21, revenue within 2x, same state
WESTMINSTER FOUNDATIONNYT21 $716,355$1,040,068 CHAIR$0 Same NTEE code T21, revenue within 2x, same state
JAPAN ICU FOUNDATION INCNYT21 $1,453,761$1,287,856 PRESIDENT & CEO$244,079 Same NTEE code T21, revenue within 2x, same state
SUSAN ISABEL FOUNDATIONNYT21 $774,392$733,661 TRUSTEE$0 Same NTEE code T21, revenue within 2x, same state
MUTUAL OF AMERICA FOUNDATIONNYT21 $1,017,224$1,167,224 CHAIRMAN OF THE BOARD, DIRECTOR$0 Same NTEE code T21, revenue within 2x, same state
ARDIAN US FOUNDATION INCNYT21 $1,453,866$1,406,795 DIRECTOR$0 Same NTEE code T21, revenue within 2x, same state
BERNARD BERGREEN FOUNDATIONNYT21 $1,825,179$95,451 Director$0 Same NTEE code T21, revenue within 2x, same state
ZICHRON YONASON FOUNDATIONNYT21 $715,788$632,226 TRUSTEE$0 Same NTEE code T21, revenue within 2x, same state
SCHLUMBERGER FOUNDATION INCNYT21 $1,367,308$1,418,407 CHAIRMAN$0 Same NTEE code T21, revenue within 2x, same state
CITY IN THE COMMUNITY FOUNDATIONNYT21 $1,174,150$1,343,172 CHAIRMAN$0 Same NTEE code T21, revenue within 2x, same state
SIEBERT WILLIAMS SHANK FOUNDATIONNYT21 $869,007$892,633 PRESIDENT$10,000 Same NTEE code T21, revenue within 2x, same state
LEIBOWITZ-GREENWAY FAM CHARITABLE FOUNDATIONNYT21 $842,164$993,056 TRUSTEE$0 Same NTEE code T21, revenue within 2x, same state

Who funds organizations like this

Grantors that funded the 100 most similar organizations. Ranked by total given to them. Foundations (990-PF) and donor-advised fund sponsors only. Same matching as Funders above (by EIN, or by name for foundations).

GrantorTypeTotal givenGrantsOrganizations fundedYearsWhich ones
INTERLAKEN FOUNDATION INC Private foundation$1,875,0001 12021–2021 WESTMINSTER FOUNDATION
ANNIE E CASEY FOUNDATION Private foundation$1,848,3555 12013–2020 WESTMINSTER FOUNDATION
WILLIAM & ELAINE KAPLAN FAMILY CHARITABLE FOUNDATION Private foundation$644,15010 12018–2023 ACCESS-SUPPORTS FOR LIVING FOUNDATION INC
JOHN TEMPLETON FOUNDATION Private foundation$620,1026 12012–2015 JAPAN ICU FOUNDATION INC
COMMUNITY FOUNDATION FOR GREATER BUFFALO INC DAF sponsor$522,4314 22013–2024 JAPAN ICU FOUNDATION INC; WESTMINSTER FOUNDATION
JOHN R OISHEI FOUNDATION Private foundation$250,0001 12019–2019 WESTMINSTER FOUNDATION
FOUNDATION TO PROMOTE OPEN SOCIETY Private foundation$175,0001 12024–2024 AEON AMERICA INC
ERIE FAMILY FOUNDATION Private foundation$175,0001 12014–2014 WESTMINSTER FOUNDATION
WEST FERRY FOUNDATION Private foundation$173,1502 12011–2013 WESTMINSTER FOUNDATION
COMMUNITY FOUNDATION OF ORANGE COUNTY DAF sponsor$135,5002 12019–2023 ACCESS-SUPPORTS FOR LIVING FOUNDATION INC
FIDELITY INVESTMENTS CHARITABLE GIFT FUND DAF sponsor$66,9856 22016–2022 ACCESS-SUPPORTS FOR LIVING FOUNDATION INC; AEON AMERICA INC
VANGUARD CHARITABLE ENDOWMENT PROGRAM DAF sponsor$52,0005 12020–2024 AEON AMERICA INC
THE RALPH C WILSON JR FOUNDATION Private foundation$50,0001 12020–2020 WESTMINSTER FOUNDATION
AMERICAN ONLINE GIVING FOUNDATION INC DAF sponsor$21,7401 12025–2025 WESTMINSTER FOUNDATION
NEIL JANE WILLIAM ESTELLE GOLUB FAMILY FOUNDATION INC Private foundation$20,5003 12019–2021 FMI FOUNDATION

The full list · all similar organizations

Where the money went

Every expense line on each return, biggest first: Form 990 Part IX (with its program, management and fundraising columns), 990-EZ Part I, or 990-PF Part I. Event marks lines the organization itself describes as events. “Events” in each summary adds those lines, conferences and meetings, and the direct costs of fundraising events. Unusual is not the same as improper. Many of these patterns have ordinary explanations. Check the filing.

2025 · Form 990PF · $1,407,700 spent · pay $123,940 · grants $1,270,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $1,270,000 90.2%
Pay: officers, directors, trustees $123,940 8.8%
Taxes $12,746 0.9%
Other expenses $1,014 0.1%
Total$1,407,700100%

View the filing

2024 · Form 990PF · $1,133,127 spent · pay $121,337 · grants $975,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $975,000 86.0%
Pay: officers, directors, trustees $121,337 10.7%
Taxes $33,644 3.0%
Fees: legal $2,058 0.2%
Other expenses $1,088 0.1%
Total$1,133,127100%

View the filing

2023 · Form 990PF · $950,756 spent · pay $114,303 · grants $825,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $825,000 86.8%
Pay: officers, directors, trustees $114,303 12.0%
Taxes $10,407 1.1%
Other expenses $1,046 0.1%
Total$950,756100%

View the filing

2022 · Form 990PF · $694,901 spent · pay $114,324 · grants $570,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $570,000 82.0%
Pay: officers, directors, trustees $114,324 16.5%
Taxes $9,531 1.4%
Other expenses $1,046 0.2%
Total$694,901100%

View the filing

2021 · Form 990PF · $934,415 spent · pay $112,289 · grants $810,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $810,000 86.7%
Pay: officers, directors, trustees $112,289 12.0%
Taxes $10,748 1.2%
Other expenses $1,378 0.1%
Total$934,415100%

View the filing

2020 · Form 990PF · $910,345 spent · pay $90,491 · grants $760,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $760,000 83.5%
Pay: officers, directors, trustees $90,491 9.9%
Fees: accounting $30,000 3.3%
Taxes $25,884 2.8%
Fees: legal $2,904 0.3%
Other expenses $1,066 0.1%
Total$910,345100%

View the filing

2018 · Form 990PF · $666,478 spent · pay $82,527 · grants $570,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $570,000 85.5%
Pay: officers, directors, trustees $82,527 12.4%
Taxes $11,703 1.8%
Fees: accounting $1,250 0.2%
Other expenses $750 0.1%
Fees: other professional $248 0.0%
Total$666,478100%

View the filing

2016 · Form 990PF · $523,007 spent · pay $76,697 · grants $430,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $430,000 82.2%
Pay: officers, directors, trustees $76,697 14.7%
Taxes $14,089 2.7%
Fees: accounting $1,250 0.2%
Other expenses $971 0.2%
Total$523,007100%

View the filing

2015 · Form 990PF · $625,438 spent · pay $75,874 · grants $540,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $540,000 86.3%
Pay: officers, directors, trustees $75,874 12.1%
Taxes $6,677 1.1%
Other expenses $1,635 0.3%
Fees: accounting $1,250 0.2%
Printing and publications $2 0.0%
Total$625,438100%

View the filing

2014 · Form 990PF · $504,046 spent · pay $75,193 · grants $420,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $420,000 83.3%
Pay: officers, directors, trustees $75,193 14.9%
Taxes $6,578 1.3%
Fees: accounting $1,250 0.2%
Other expenses $1,023 0.2%
Printing and publications $2 0.0%
Total$504,046100%

View the filing

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