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· Private foundation

Oppenheim Family Fund Inc

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$668k
Granted FY2025still arriving
81
Grants FY2025still arriving
20
States reached
$84k
Largest
01What it funds
0198% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2025.

Health$1.1MPhilanthropy$633kEducation$613kRecreation & Sports$315kEnvironment$306kYouth Development$298kHuman Services$269kArts & Culture$206kOther$0
02FY2025 · 81 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k55 grants · $117k
  • $10k–50k25 grants · $467k
  • $50k–250k1 grant · $84k
$3,000
Median grant
20
States reached
$9.9M
Total assets
Largest grants
RecipientAmount
BETH BRUNSWICK MEMORIAL FUND FOR CHILDREN$84,000
Individual grant recipient$45,000
RANGELEY LAKES HERITAGE TRUST INC$40,000
NATURE CONSERVANCY OF MAINE$40,000
PLANNED PARENTHOOD$30,000
RENAISSANCE CHARITABLE FOUNDATION INC$27,000
UJA FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC$25,000
ACKERMAN FOUNDATION INC$25,000
MONTEFIORE MEDICAL CENTER$25,000
FAIRFIELD COUNTY'S COMMUNITY FOUNDATION$25,000
HS2 AT CRMS (COLORADO ROCKY MOUNTAIN SCHOOL)$20,000
PARK CITY COMMUNITY FOUNDATION$15,000
COLGATE UNIVERSITY$13,000
RANGELEY HEALTH & WELLNESS$12,860
WNET$12,000
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its human-services grants (FY20–25, $115k) land where the poverty rate runs at 10%, against an area that typically sits at 10%. 29% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 10%OPEN ARMS OF MINNESOTA: $500 → 11%GUIDING EYES FOR THE BLIND: $10k → 9%PATHWAYS INC: $5k → 13%RIVER HOUSE: $1k → 14%MOUNTAIN SEED FOUNDATION: $5k → 6%OPEN ARMS OF MINNESOTA: $500 → 11%GUIDING EYES FOR THE BLIND: $10k → 9%PATHWAYS INC: $5k → 13%RIVER HOUSE: $500 → 14%GUIDING EYES FOR THE BLIND: $10k → 9%PATHWAYS INC: $5k → 13%RIVER HOUSE: $350 → 14%GUIDING EYES FOR THE BLIND: $10k → 9%PATHWAYS INC: $5k → 13%GUIDING EYES FOR THE BLIND: $8k → 9%PATHWAYS INC: $3k → 13%GUIDING EYES FOR THE BLIND: $8k → 9%PATHWAYS INC: $3k → 13%GUIDING EYES FOR THE BLIND: $8k → 9%GUIDING EYES FOR THE BLIND: $500 → 9%SAFE HORIZON INC: $1k → 17%SAFE HORIZON INC: $1k → 17%SAFE HORIZON INC: $1k → 17%SAFE HORIZON INC: $1k → 17%SAFE HORIZON INC: $1k → 17%SAFE HORIZON INC: $500 → 17%STAYING PUT IN NEW CANAAN INC: $1k → 9%STAYING PUT IN NEW CANAAN: $500 → 9%STAYING PUT IN NEW CANAAN INC: $500 → 9%STAYING PUT IN NEW CANAAN INC: $500 → 9%STAYING PUT IN NEW CANAAN INC: $500 → 9%SOCIAL VENTURE PARTNERS CONNECTICUT INC: $5k → 9%AT HOME IN GREENWICH: $2k → 9%AT HOME IN GREENWICH: $1k → 9%AT HOME IN GREENWICH INC: $500 → 9%AT HOME IN GREENWICH: $500 → 9%AT HOME IN GREENWICH INC: $500 → 9%AT HOME IN GREENWICH: $500 → 9%AT HOME IN GREENWICH: $500 → 9%AT HOME IN GREENWICH INC: $500 → 9%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

ME
VT
NH
WA
ID
MN
IL
MI
NY
MA
OR
IN
OH
NJ
CT
CA
UT
CO
NE
MO
KY
VA
MD
NM
KS
TN
NC
DC
AL
GA
TX
FL
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

83%of every dollar goes to organizations it has funded before.
$3.2M · 132 repeat orgs$680k to everyone else

Grantees it renews have grown median revenue +24% since the first grant, against 0% for those funded once.

132 repeat relationships: 67 still active in FY2025, 65 since wound down; 7 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

132
71

Total granted

$3.2M
$630k

Median revenue growth · since first grant

+24%
0%

Still filing today

70%
52%

New vs renewed · share of each year

In FY2025, 92% of grant dollars renewed an existing relationship; $50k went to new ones.

50%100%’20’21’22’23’24’25
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’20’21’22’23’24’25
HealthEducationInternationalArts & CultureHuman ServicesEnvironmentOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.

Backed again, and grew

  • THE BROTHERHOOD SISTER SOL INC
    6× · 2020–2025 · $286k · revenue +34%
  • GH
    GREENWICH HOSPITAL
    6× · 2020–2025 · $180k · revenue +20%
  • RL
    RANGELEY LAKES HERITAGE TRUST INC
    4× · 2022–2025 · $162k · revenue +16%

Funded once

  • SM
    Saddleback Mountain Foundation
    one grant, 2020 · $250k · revenue -100%
  • PP
    PLANNED PARENTHOOD OF CT INC
    one grant, 2020 · $30k
  • AI
    ACKERMAN INSTITUTE FOR THE FAMILY
    one grant, 2023 · $25k · revenue +6%
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
University of New Haven

The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…

Education
2
Massachusetts Institute of Technology

The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.

Education
3
New York Genome Center Inc

Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.

Health
4
Manhattanville University

To educate students to be ethical and socially responsible leaders in a global community.

Education
5
Long Island Community Hospital At Nyu Langone Health

The goals and objectives of the corporation are as follows:(a) to operate and maintain a nonsectarian, general hospital at one or more locations for the furnishing of inpatient, ambulatory, restorative, preventative and emergency medical…

—
6
New York University

Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.

Education
7
Neurology Associates of Stony Brook University Faculty Practice Corp

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
8
Metropolitan Jewish Health System Inc

Mjhs health system is a charitable not-for-profit established to support the activities of affiliated organizations. mjhs is built on the core values of compassion, dignity and respect, first established by the four brooklyn ladies in…

Health
9
Stony Brook Internists University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
10
Stony Brook Urology University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
11
City Report Inc

CITY REPORT, INC. serves the people of New York through independent journalism that answers their information needs and holds the powerful to account.

Arts & Culture
12
The Rand Corporation

Help improve policy and decision making through research and analysis.

Public Benefit
How this is measured
The grantee most central to the portfolio’s shape is Fairfield County's Community Foundation Inc; the most unlike its peers is The Ackerman Foundation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

147 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 147 of the 222 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

0
Load-bearing (≥25% of a budget)
18
Early backer (in before they grew)
146/147
Grantees still filing
96/147
Grew since first funded

Where the money sits, by cause and then by grantee

PLANNED PARENTHOOD: $155,000 · OtherPLANNED PARENTHOODRANGELEY REGION HEALTH & WELLNESS: $146,651 · OtherRANGELEY REGION HEALTH & WELLNESSHS2 AT CRMS (COLORADO ROCKY MOUNTAIN SCHOOL): $121,500 · OtherHS2 AT CRMS (COLORADO ROCKY MOUNTAIN SCHOOL)ACKERMAN INSTITUTE: $110,000 · OtherACKERMAN INSTITUTEUNITED WAY OF GREENWICH INC: $85,000 · Other+127 more: $1,388,456 · Other+127 moreBETH BRUNSWICK MEMORIAL FUND FOR CH: $184,000 · EducationBETH BRUNSWIC…COLGATE UNIVERSITY: $80,500 · EducationCOLGATE UNIVE…Horizons at CT State Norwalk Inc: $56,000 · EducationHorizons at C…Cornell University: $35,000 · EducationCornell Unive…LITERACY INC: $34,000 · EducationLITERACY INCTHE NEW CANAAN COUNTRY SCHOOL INCORPORATED: $32,000 · EducationTHE NEW CANAA…THE HUNTER COLLEGE FOUNDATION INC: $19,000 · Education+13 more: $84,100 · Education+13 moreFAIRFIELD COUNTY'S COMMUNITY FOUNDATION INC: $155,000 · PhilanthropyFAIRFIELD COU…UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC: $125,000 · PhilanthropyUNITED JEWISH…PARK CITY COMMUNITY FOUNDATION: $72,000 · PhilanthropyPARK CITY COM…THE NEW YORK TIMES COMMUNITIES FUND: $30,000 · PhilanthropyTHE NEW YORK …Renaissance Charitable Foundation Inc: $27,000 · PhilanthropyOMPRAKASH INC: $26,000 · PhilanthropyVENN FOUNDATION: $25,000 · PhilanthropyTHE ACKERMAN FOUNDATION INC: $25,000 · Philanthropy+5 more: $33,650 · Philanthropy+5 moreGREENWICH HOSPITAL: $180,000 · HealthGREENWICH H…MONTEFIORE MEDICAL CENTER: $75,100 · HealthMONTEFIORE …NAMI National: $45,000 · HealthNAMI Nation…Parkinson Research Foundation Inc: $30,000 · HealthParkinson R…ACKERMAN INSTITUTE FOR THE FAMILY: $25,000 · HealthACKERMAN IN…MIRACLEFEET: $22,000 · Health+15 more: $69,296 · Health+15 moreSaddleback Mountain Foundation: $250,000 · Recreation & SportsFRESH AIR FUND: $60,000 · Recreation & Sports+3 more: $6,200 · Recreation & SportsTHE BROTHERHOOD SISTER SOL INC: $286,000 · Youth DevelopmentRANGELEY LAKES HERITAGE TRUST INC: $161,750 · EnvironmentEARTHJUSTICE: $10,000 · Environment+6 more: $21,000 · Environment
Other$2,006,607Education$524,600Philanthropy$518,650Health$446,396Recreation & Sports$316,200Youth Development$286,000Environment$192,750

Showing the 200 largest grantees by grant value.

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetTHE BROTHERHOOD SISTER SOL INC: $286,000 over 6y, 0.6% of budgetSaddleback Mountain Foundation: $250,000 over 1y, 9.8% of budgetBETH BRUNSWICK MEMORIAL FUND FOR CH: $184,000 over 2y, 22% of budgetGREENWICH HOSPITAL: $180,000 over 6y, 0.0% of budgetRANGELEY LAKES HERITAGE TRUST INC: $161,750 over 4y, 1.7% of budgetFAIRFIELD COUNTY'S COMMUNITY FOUNDATION INC: $155,000 over 6y, 0.1% of budgetUNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC: $125,000 over 5y, 0.0% of budgetUNITED WAY OF GREENWICH INC: $85,000 over 5y, 1.8% of budgetCOLGATE UNIVERSITY: $80,500 over 6y, 0.0% of budgetMONTEFIORE MEDICAL CENTER: $75,100 over 2y, 0.0% of budgetPARK CITY COMMUNITY FOUNDATION: $72,000 over 6y, 0.2% of budgetGUIDING EYES FOR THE BLIND INC: $64,000 over 6y, 0.1% of budgetFRESH AIR FUND: $60,000 over 6y, 0.1% of budgetWNET: $60,000 over 5y, 0.0% of budgetHorizons at CT State Norwalk Inc: $56,000 over 6y, 4.0% of budgetInternational Rescue Committee INC: $55,000 over 6y, 0.0% of budgetNAMI National: $45,000 over 4y, 0.1% of budgetTHE CENTER FOR REPRODUCTIVE RIGHTS INC: $42,000 over 6y, 0.0% of budgetCornell University: $35,000 over 3y, 0.0% of budgetLITERACY INC: $34,000 over 5y, 0.2% of budgetTHE NEW CANAAN COUNTRY SCHOOL INCORPORATED: $32,000 over 3y, 0.0% of budgetParkinson Research Foundation Inc: $30,000 over 6y, 0.3% of budgetTHE NATURE CONSERVANCY: $30,000 over 2y, 0.0% of budgetTHE NEW YORK TIMES COMMUNITIES FUND: $30,000 over 3y, 0.1% of budgetOMPRAKASH INC: $26,000 over 6y, 0.1% of budgetACKERMAN INSTITUTE FOR THE FAMILY: $25,000 over 1y, 0.7% of budgetPATHWAYS INC: $25,000 over 6y, 0.0% of budgetTHE ACKERMAN FOUNDATION: $25,000 over 1y, 2.4% of budgetMETROPOLITAN MUSEUM OF ART: $25,000 over 5y, 0.0% of budgetVENN FOUNDATION: $25,000 over 1y, 0.4% of budgetMIRACLEFEET: $22,000 over 6y, 0.1% of budgetNATIONAL ALLIANCE ON MENTAL ILLNESS OF NEW YORK CITY INC: $20,000 over 2y, 0.3% of budgetFAMILY CENTERS INC: $20,000 over 5y, 0.0% of budgetTHE HUNTER COLLEGE FOUNDATION INC: $19,000 over 6y, 0.0% of budgetUJA FEDERATION OF GREENWICH INC: $18,500 over 5y, 0.2% of budgetNew York Historical Society: $17,270 over 6y, 0.0% of budgetSPRING LAKE RANCH INC: $17,000 over 6y, 0.1% of budgetNORWALK COMMUNITY COLLEGE FOUNDATION INC: $17,000 over 4y, 0.1% of budgetAMERICAN CIVIL LIBERTIES UNION FOUNDATION INC: $16,500 over 3y, 0.0% of budgetAGRARIAN LAND TRUST: $15,000 over 2y, 0.5% of budgetTrustees of Dartmouth College: $15,000 over 4y, 0.0% of budgetWORLD CENTRAL KITCHEN INC: $15,000 over 1y, 0.0% of budgetMAINE INSIDE OUT: $15,000 over 2y, 1.2% of budgetMEDECINS SANS FRONTIERES USA INC: $12,000 over 6y, 0.0% of budgetGREENWICH ACADEMY INC: $12,000 over 6y, 0.0% of budgetPURCHASE COLLEGE FOUNDATION INC: $10,100 over 2y, 0.3% of budgetRONALD MCDONALD HOUSE OF NEW YORK INC: $10,000 over 2y, 0.0% of budgetMaineHealth: $10,000 over 1y, 0.0% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

  • Who funds THE BROTHERHOOD SISTER SOL INC ↗
  • Who funds Saddleback Mountain Foundation ↗
  • Who funds BETH BRUNSWICK MEMORIAL FUND FOR CH ↗
  • Who funds GREENWICH HOSPITAL ↗
  • Who funds RANGELEY LAKES HERITAGE TRUST INC ↗
  • Who funds FAIRFIELD COUNTY'S COMMUNITY FOUNDATION INC ↗
  • Who funds UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC ↗
  • Who funds UNITED WAY OF GREENWICH INC ↗
  • Who funds COLGATE UNIVERSITY ↗
  • Who funds MONTEFIORE MEDICAL CENTER ↗
  • Who funds PARK CITY COMMUNITY FOUNDATION ↗
  • Who funds GUIDING EYES FOR THE BLIND INC ↗
  • Who funds FRESH AIR FUND ↗
  • Who funds WNET ↗
  • Who funds Horizons at CT State Norwalk Inc ↗
  • Who funds International Rescue Committee INC ↗
  • Who funds NAMI National ↗
  • Who funds THE CENTER FOR REPRODUCTIVE RIGHTS INC ↗
  • Who funds Cornell University ↗
  • Who funds LITERACY INC ↗
  • Who funds THE NEW CANAAN COUNTRY SCHOOL INCORPORATED ↗
  • Who funds Parkinson Research Foundation Inc ↗
  • Who funds THE NATURE CONSERVANCY ↗
  • Who funds THE NEW YORK TIMES COMMUNITIES FUND ↗
  • Who funds Renaissance Charitable Foundation Inc ↗
  • Who funds OMPRAKASH INC ↗
  • Who funds ACKERMAN INSTITUTE FOR THE FAMILY ↗
  • Who funds PATHWAYS INC ↗

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

Fairfield County's Community Foundation IncCT24.9× affinity11 shared granteesties to 9 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Fairfield County's Community Foundation Inc · The Resource Foundation Inc · Franklin Savings Bank Community Development Foundation · Maine Community Foundation Inc · Jewish Communal Fund · The New York Community Trust · S & L Marx Foundation · Panwy Foundation Inc · The Tudor Foundation Inc · Judy & Warren Tenney Foundation · Robert & Dale Rosen Charitable Foundation Tr U/A 8/05/92 · The Goergen Foundation Inc

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization Oppenheim Family Fund Inc funds: left to right is the share of its income from government, bottom to top the share from Oppenheim Family Fund Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 240%6%25%56%100%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 21%
  • Laurel House Inc: 68% of income from government
  • Kids in Crisis Inc: 49% of income from government
  • Jewish Family Services of Greenwich: 41% of income from government
  • Save the Children Federation Inc: 30% of income from government
  • Big Brothers Big Sisters of America: 21% of income from government
  • Family Centers Inc: 20% of income from government
  • Bruce Museum Inc: 0% of income from government
  • Americares Foundation Inc: 0% of income from government
  • Greenwich Hospital: 0% of income from government
no gov moneyreceives it· size = income
24get no government money at all
37report government grants on their 990 we could not trace to a source (not plotted)
1rely on government for over half their income
typical government reliance, FY20–25
How this is measured
Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to Oppenheim Family Fund Inc?

Find your warmest path to Oppenheim Family Fund Inc through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 222 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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