STRATEGY STUDIO / PUBLIC DATA EXPLORER

HOLSTEIN FOUNDATION

Cite this

Plain text HOLSTEIN FOUNDATION. Strategy Studio, nonprofit organization profile, tax years 2010–2025. https://strategystudio.org/org/237012134. Retrieved 2026-10-20.

APA Strategy Studio. (n.d.). HOLSTEIN FOUNDATION [Nonprofit organization profile; tax years 2010–2025]. Retrieved October 20, 2026, from https://strategystudio.org/org/237012134

MLA “HOLSTEIN FOUNDATION.” Strategy Studio, tax years 2010–2025, https://strategystudio.org/org/237012134. Accessed 20 Oct. 2026.

Retrieved 2026-10-20; covers tax years 2010–2025. Data: Strategy Studio, CC BY 4.0.

2025 · Form 990PF · revenue $24K · expenses $31K · assets $352K

EIN
23-7012134
Address
12 ROOSEVELT AVENUE, MYSTIC, CT 06355-2809
NTEE code
-
Subsection
501(c)(3)
Ruling year
1969
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Each tax year counts once: when a return was amended, only the latest return for that period is used below (superseded returns stay listed, greyed, under Finances).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

None of the 5 people listed on these returns reported compensation from the organization. They are listed below.

Officers and directors, no compensation reported

5 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
John Holstein TRUSTEE2010-2025 1 $0 reported 1
Jill Bach TRUSTEE2010-2025 1 $0 reported 1
Bruce Holstein TRUSTEE2010-2025 1 $0 reported 1
Patricia Clark TRUSTEE2023-2025 1 $0 reported 1
Edward Stambovsky (former) TRUSTEE2010-2020 1 $0 reported 1

People by year

2025 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOHN HOLSTEIN TRUSTEE1 $0-$0 $01
JILL BACH TRUSTEE1 $0-$0 $01
BRUCE HOLSTEIN TRUSTEE1 $0-$0 $01
PATRICIA CLARK TRUSTEE1 $0-$0 $01
2024 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOHN HOLSTEIN TRUSTEE1 $0-$0 $01
JILL BACH TRUSTEE1 $0-$0 $01
BRUCE HOLSTEIN TRUSTEE1 $0-$0 $01
PATRICIA CLARK TRUSTEE1 $0-$0 $01
2023 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOHN HOLSTEIN TRUSTEE1 $0-$0 $01
JILL BACH TRUSTEE1 $0-$0 $01
BRUCE HOLSTEIN TRUSTEE1 $0-$0 $01
PATRICIA CLARK TRUSTEE1 $0-$0 $01
2022 · 3 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOHN HOLSTEIN TRUSTEE1 $0-$0 $01
JILL BACH TRUSTEE1 $0-$0 $01
BRUCE HOLSTEIN TRUSTEE1 $0-$0 $01
2021 · 3 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOHN HOLSTEIN TRUSTEE1 $0-$0 $01
JILL BACH TRUSTEE1 $0-$0 $01
BRUCE HOLSTEIN TRUSTEE1 $0-$0 $01
2020 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOHN HOLSTEIN TRUSTEE1 $0-$0 $01
JILL BACH TRUSTEE1 $0-$0 $01
BRUCE HOLSTEIN TRUSTEE1 $0-$0 $01
EDWARD STAMBOVSKY TRUSTEE1 $0-$0 $01
2019 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOHN HOLSTEIN TRUSTEE1 $0-- $01
JILL BACH TRUSTEE1 $0-- $01
BRUCE HOLSTEIN TRUSTEE1 $0-- $01
EDWARD STAMBOVSKY TRUSTEE1 $0-- $01
2018 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOHN HOLSTEIN TRUSTEE1 $0-$0 $01
JILL BACH TRUSTEE1 $0-$0 $01
BRUCE HOLSTEIN TRUSTEE1 $0-$0 $01
EDWARD STAMBOVSKY TRUSTEE1 $0-$0 $01
2017 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOHN HOLSTEIN TRUSTEE1 $0-$0 $01
JILL BACH TRUSTEE1 $0-$0 $01
BRUCE HOLSTEIN TRUSTEE1 $0-$0 $01
EDWARD STAMBOVSKY TRUSTEE1 $0-$0 $01
2016 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOHN HOLSTEIN TRUSTEE1 $0-$0 $01
JILL BACH TRUSTEE1 $0-$0 $01
BRUCE HOLSTEIN TRUSTEE1 $0-$0 $01
EDWARD STAMBOVSKY TRUSTEE1 $0-$0 $01
2015 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOHN HOLSTEIN TRUSTEE1 $0-$0 $01
JILL BACH TRUSTEE1 $0-$0 $01
BRUCE HOLSTEIN TRUSTEE1 $0-$0 $01
EDWARD STAMBOVSKY TRUSTEE1 $0-$0 $01
2014 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOHN HOLSTEIN TRUSTEE1 $0-$0 $01
JILL BACH TRUSTEE1 $0-$0 $01
BRUCE HOLSTEIN TRUSTEE1 $0-$0 $01
EDWARD STAMBOVSKY TRUSTEE1 $0-$0 $01
2013 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOHN HOLSTEIN TRUSTEE1 $0-$0 $01
JILL BACH TRUSTEE1 $0-$0 $01
BRUCE HOLSTEIN TRUSTEE1 $0-$0 $01
EDWARD STAMBOVSKY TRUSTEE1 $0-$0 $01
2012 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOHN HOLSTEIN TRUSTEE1 $0-$0 $01
JILL BACH TRUSTEE1 $0-$0 $01
BRUCE HOLSTEIN TRUSTEE1 $0-$0 $01
EDWARD STAMBOVSKY TRUSTEE1 $0-$0 $01
2010 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOHN HOLSTEIN TRUSTEE1 $0-$0 $01
JILL BACH TRUSTEE1 $0-$0 $01
BRUCE HOLSTEIN TRUSTEE1 $0-$0 $01
EDWARD STAMBOVSKY TRUSTEE1 $0-$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 · 10 grants to organizations · $28K
2024 · 11 grants to organizations · $25K
2023 · 15 grants to organizations · $35K
2022 · 13 grants to organizations · $28K
2021 · 14 grants to organizations · $26K
2020 · 12 grants to organizations · $23K
2019 · 10 grants to organizations · $31K
2018 · 16 grants to organizations · $29K
2017 · 14 grants to organizations · $28K
2016 · 15 grants to organizations · $27K
2015 · 12 grants to organizations · $28K
2014 · 11 grants to organizations · $29K
2013 · 12 grants to organizations · $27K
2012 · 18 grants to organizations · $32K
2010 · 17 grants to organizations · $35K

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.

2021 · 1 contributor · $23K
#ContributorTypeCity, stateTotalNoncashSource
1 327-449 HAZELNUT LLC Organization or other MYSTIC, CT $22,565- Form 990PF Sch. B, 2021 · 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 ↗
$24,049$31,024 $352,212$352,212 -- $0--
2024 · Form 990PF period ending 2024-12-31 · view filing · original 990 ↗
$15,334$28,584 $359,187$359,187 -- $0--
2023 · Form 990PF period ending 2023-12-31 · view filing · original 990 ↗
$0$38,281 $372,437$372,437 -- $0--
2022 · Form 990PF period ending 2022-12-31 · view filing · original 990 ↗
$0$29,416 $410,718$410,718 -- $0--
2021 · Form 990PF period ending 2021-12-31 · amended · view filing · original 990 ↗
$10,942$28,347 $440,134$440,134 $22,565- $0--
2021 · Form 990PF period ending 2021-12-31 · superseded · view filing · original 990 ↗
$75,000$28,346 $504,193$504,193 $75,000- $0--
2020 · Form 990PF period ending 2020-12-31 · view filing · original 990 ↗
$0$22,555 $457,539$457,539 -- $0--
2019 · Form 990PF period ending 2019-12-31 · view filing · original 990 ↗
$9,936$30,800 $480,094$480,094 -- ---
2018 · Form 990PF period ending 2018-12-31 · view filing · original 990 ↗
$9,936$30,127 $500,958$500,958 -- $0--
2017 · Form 990PF period ending 2017-12-31 · view filing · original 990 ↗
$8,078$29,249 $521,151$521,149 -- $0--
2016 · Form 990PF period ending 2016-12-31 · view filing · original 990 ↗
$7,881$28,750 $542,320$542,320 -- $0--
2015 · Form 990PF period ending 2015-12-31 · view filing · original 990 ↗
$7,252$29,767 $563,189$563,189 -- $0--
2014 · Form 990PF period ending 2014-12-31 · view filing · original 990 ↗
$4,645$30,775 $585,704$585,704 -- $0--
2013 · Form 990PF period ending 2013-12-31 · view filing · original 990 ↗
$13,326$27,999 $612,880$611,834 -- $0--
2012 · Form 990PF period ending 2012-12-31 · view filing · original 990 ↗
$13,307$33,692 $626,507$626,507 -- $0--
2010 · Form 990PF period ending 2010-12-31 · view filing · original 990 ↗
$15,749$37,041 $669,726$669,726 -- $0--

Funders of this organization

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

Similar organizations

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
HOLL FOUNDATIONMIT22 $25,047$8,001 PRESIDENT$0 Similar name, revenue within 2x
RODSTEIN FOUNDATIONFLNot reported $36,847$16,054 Trustee$0 Similar name, revenue within 2x
HOLMES FOUNDATIONTXO50 $23,633$13,430 PRESIDENT$0 Similar name, revenue within 2x
ROTHSTEIN FOUNDATIONMANot reported $22,653$23,849 PRESIDENT$0 Similar name, revenue within 2x
HONG FOUNDATIONCAT22 $42,988$72,495 President$0 Similar name, revenue within 2x
HE FOUNDATIONCAT50 $17,000$22,861 President & CEO$0 Similar name, revenue within 2x
HORAN FOUNDATIONDEV21 $20,326$0 Director$0 Similar name, revenue within 2x
HOBBS FOUNDATIONTXNot reported $17,735$18,063 PRESIDENT$0 Similar name, revenue within 2x
HES FOUNDATIONNYT22 $22,987$16,346 Foundation Mana$0 Similar name, revenue within 2x
HRI FOUNDATIONTXA12 $20,918$12,580 PRES/SEC/DIR$0 Similar name, revenue within 2x
HDH FOUNDATIONCOM12 $20,000$0 President$0 Similar name, revenue within 2x
HEP FOUNDATIONKYT22 $31,439$16,505 Trustee$0 Similar name, revenue within 2x
HUT FOUNDATIONTXS12 $32,495$31,380 DIRECTOR$0 Similar name, revenue within 2x
A-H FOUNDATIONCAT99 $38,407$64,632 PRESIDENT$15,000 Similar name, revenue within 2x
H&M FOUNDATIONNYT90 $45,485$588,916 President$0 Similar name, revenue within 2x
HORNER FOUNDATIONILNot reported $19,298$738,212 PRESIDENT/TR$0 Similar name, revenue within 2x
I HOPE FOUNDATIONNCR20 $31,000$20,539 PRESIDENT$0 Similar name, revenue within 2x
HONG FA FOUNDATIONTXX50 $47,023$86,217 PRESIDENT$0 Similar name, revenue within 2x
THE HOLLY FOUNDATIONMST22 $28,518$8,000 PRESIDENT/TR$0 Similar name, revenue within 2x
HOLTON FOUNDATION INCWINot reported $14,071$9,292 TREASURER$500 Similar name, revenue within 2x
HOLLIS FOUNDATION INCMST20 $23,927$26,848 PRESIDENT$0 Similar name, revenue within 2x
FG FOUNDATIONNYT20 $25,661$17,238 Trustee$0 Similar name, revenue within 2x
FB FOUNDATIONSCP20 $26,911$45,616 Executive Director$12,150 Similar name, revenue within 2x
HERT FOUNDATIONMTB90 $27,568$4,077 EXECUTIVE DIRECTOR$0 Similar name, revenue within 2x
HURON FOUNDATIONOHNot reported $28,901$82,728 PRESIDENT$0 Similar name, revenue within 2x

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
AMERICAN ONLINE GIVING FOUNDATION INC DAF sponsor$581,4959 42019–2024 HOPE3 FOUNDATION; HHOP FOUNDATION; Q FOUNDATION; HUYS FOUNDATION
CRANKSTART FOUNDATION Private foundation$200,0001 12020–2020 Q FOUNDATION
DONOR ADVISED CHARITABLE GIVING DAF sponsor$161,5004 32017–2024 HOW FOUNDATION; HOPE FOUNDATION; HOSHYAR FOUNDATION
DEL MAR GLOBAL TR Private foundation$116,2501 12024–2024 HES FOUNDATION
TRI-STATE 1ST BANC CHARITABLE TRUST Private foundation$96,0501 12015–2015 HHH FOUNDATION
HJH FOUNDATION 501 C 3 Private foundation$85,0004 12022–2025 FOUNDATION FOR HOPE
CHARITIES AID FOUNDATION AMERICA DAF sponsor$41,5002 12022–2023 FB FOUNDATION
WOMENCONNECT4GOOD INC Private foundation$30,0003 12015–2018 HOPE FOUNDATION
MISSION INCREASE FOUNDATION Private foundation$25,0001 12010–2010 HOPE FOUNDATION
HORIZONS FOUNDATION DAF sponsor$25,0002 12017–2019 Q FOUNDATION
SHIELD-AYRES FOUNDATION Private foundation$20,0001 12019–2019 HRI FOUNDATION
NATIONAL CHRISTIAN CHARITABLE FOUNDATION DAF sponsor$17,6984 12015–2018 HOPE FOUNDATION
RAYMOND JAMES CHARITABLE ENDOWMENT FUND DAF sponsor$15,0002 12023–2024 HOPE FOUNDATION
AUSTIN COMMUNITY FOUNDATION DAF sponsor$15,0002 12018–2020 HRI FOUNDATION
ROBERT M -BOBBY- ALLISON CHARITABLE TRUST Private foundation$13,5001 12023–2023 HOPE 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 · $31,024 spent · pay $0 · grants $27,850 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $27,850 89.8%
Fees: accounting $2,305 7.4%
Other expenses $500 1.6%
Taxes $219 0.7%
Fees: other professional $150 0.5%
Total$31,024100%

View the filing

2024 · Form 990PF · $28,584 spent · pay $0 · grants $24,525 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $24,525 85.8%
Fees: accounting $3,559 12.5%
Other expenses $500 1.7%
Total$28,584100%

View the filing

2023 · Form 990PF · $38,281 spent · pay $0 · grants $35,100 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $35,100 91.7%
Fees: accounting $2,256 5.9%
Fees: legal $925 2.4%
Total$38,281100%

View the filing

2022 · Form 990PF · $29,416 spent · pay $0 · grants $28,500 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $28,500 96.9%
Fees: accounting $898 3.1%
Other expenses $18 0.1%
Total$29,416100%

View the filing

2021 · Form 990PF · $28,347 spent · pay $0 · grants $26,200 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $26,200 92.4%
Fees: accounting $2,140 7.5%
Taxes $7 0.0%
Total$28,347100%

View the filing

2020 · Form 990PF · $22,555 spent · pay $0 · grants $22,555 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $22,555 100.0%
Total$22,555100%

View the filing

2019 · Form 990PF · $30,800 spent · pay $0 · grants $30,800 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $30,800 100.0%
Total$30,800100%

View the filing

2018 · Form 990PF · $30,127 spent · pay $0 · grants $28,750 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $28,750 95.4%
Fees: accounting $1,300 4.3%
Taxes $77 0.3%
Total$30,127100%

View the filing

2017 · Form 990PF · $29,249 spent · pay $0 · grants $27,850 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $27,850 95.2%
Fees: accounting $1,300 4.4%
Taxes $99 0.3%
Total$29,249100%

View the filing

2016 · Form 990PF · $28,750 spent · pay $0 · grants $27,450 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $27,450 95.5%
Fees: accounting $1,300 4.5%
Total$28,750100%

View the filing

2015 · Form 990PF · $29,767 spent · pay $0 · grants $28,350 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $28,350 95.2%
Fees: accounting $1,300 4.4%
Printing and publications $92 0.3%
Taxes $25 0.1%
Total$29,767100%

View the filing

2014 · Form 990PF · $30,775 spent · pay $0 · grants $29,350 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $29,350 95.4%
Fees: accounting $1,300 4.2%
Taxes $125 0.4%
Total$30,775100%

View the filing

2013 · Form 990PF · $27,999 spent · pay $0 · grants $26,570 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $26,570 94.9%
Fees: accounting $1,300 4.6%
Taxes $129 0.5%
Total$27,999100%

View the filing

2012 · Form 990PF · $33,692 spent · pay $0 · grants $32,170 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $32,170 95.5%
Fees: accounting $1,400 4.2%
Taxes $122 0.4%
Total$33,692100%

View the filing

2010 · Form 990PF · $37,041 spent · pay $0 · grants $35,347 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $35,347 95.4%
Fees: accounting $1,400 3.8%
Fees: other professional $245 0.7%
Taxes $49 0.1%
Total$37,041100%

View the filing