Skip to content

· Private foundation

The Sidewater Family Foundation 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.

$319k
Granted FY2025still arriving
47
Grants FY2025still arriving
7
States reached
$30k
Largest
01What it funds
0194% classified

What it funded, over time

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

Health$759kInternational$318kPhilanthropy$271kArts & Culture$232kEducation$182kHuman Services$147kReligion$52kCivil Rights$52kOther$0
02FY2025 · 47 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k31 grants · $125k
  • $10k–50k16 grants · $194k
$5,000
Median grant
7
States reached
$3.4M
Total assets
Largest grants
RecipientAmount
LANKENAU MEDICAL CENTER FOUNDATION$30,000
AMERICAN SOCIETY FOR YAD VASHEM$15,000
THE JEWISH THEOLOGICAL SEMINARY$15,000
JEWISH RELIEF AGENCY$12,000
CHOP FOUNDATION$12,000
WHYYPBS$10,000
AMERICAN FRIENDS OF NATAL INC$10,000
JEVS HUMAN SERVICES$10,000
GERMANTOWN FRIENDS SCHOOL$10,000
AMERICAN FRIENDS OF MAGEN DAVID ADOM$10,000
JEWISH FEDERATION OF GREATER PHILADELPHIA$10,000
AMERICAN FRIENDS OF THE HEBREW UNIVERSITY$10,000
MOUNT SINAI HEALTH SYSTEM$10,000
JEWISH MUSEUM$10,000
UNITED HATZALAH$10,000
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, $108k) land where the poverty rate runs at 12%, against an area that typically sits at 12%. 44% of those dollars go to grantees based in above-average-need neighborhoods. Its grants spread fairly evenly across need levels.

area typical 12%KAVOD: $2k → 12%KAVOD: $2k → 12%JEWISH RELIEF AGENCY: $12k → 7%KAVOD: $2k → 12%JEWISH RELIEF AGENCY: $12k → 7%JEWISH RELIEF AGENCY: $12k → 7%JEWISH RELIEF AGENCY: $12k → 7%JEWISH RELIEF AGENCY: $12k → 7%PROJECT HOME: $7k → 22%PROJECT HOME: $7k → 22%PROJECT HOME: $7k → 22%PROJECT HOME: $5k → 22%PROJECT HOME: $5k → 22%FEDERATION EARLY LEARNING SERVICES: $250 → 22%PROJECT HOME: $900 → 22%MOUNT SINAI HEALTH SYSTEM: $10k → 17%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
NY
MA
OH
PA
NJ
CT
CA
CO
KY
DC
LA
AL
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.

95%of every dollar goes to organizations it has funded before.
$1.9M · 72 repeat orgs$102k to everyone else

Grantees it renews have grown median revenue +24% since the first grant, against +6% for those funded once.

72 repeat relationships: 36 still active in FY2025, 36 since wound down; 8 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

72
19

Total granted

$1.9M
$52k

Median revenue growth · since first grant

+24%
+6%

Still filing today

50%
63%

New vs renewed · share of each year

In FY2025, 83% 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
Arts & CultureEducationHealthHuman ServicesInternationalPhilanthropyOther
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

  • LM
    LANKENAU MEDICAL CENTER FOUNDATION
    6× · 2020–2025 · $245k · revenue +56%
  • AF
    AMERICAN FRIENDS OF MAGEN DAVID ADOM
    6× · 2020–2025 · $218k · revenue +198%
  • JH
    JEVS HUMAN SERVICES
    5× · 2020–2025 · $60k · revenue +49%

Funded once

  • CS
    CONGREGATION SHEARITH ISRAEL
    one grant, 2022 · $10k
  • ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
    one grant, 2024 · $10k · revenue 0%
  • SP
    SOUTHERN POVERTY LAW CENTER INC
    one grant, 2023 · $10k · revenue -12%
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
Albert Einstein College of Medicine

Committed to exceptional healthcare quality for all and actively engaged with our community, einstein drives scientific discovery and educates compassionate leaders in health and science.

Education
2
The Jewish Agency for Israel

The jewish agency binds jews across ideologies and civilizations together in a worldwide jewish family with israel at its center. it provides the global framework for aliyah, ensures global jewish safety, strengthens jewish identity and…

—
3
Foundation for Jewish Philanthropies Inc

See schedule othe organization is a not-for-profit, public charity established in 1911 to provide for the quality and continuity of jewish life in western new york and around the world through private philanthropy. the foundation seeks,…

Philanthropy
4
Weizmann Institute of Science

The weizmann institute of science, located in rehovot, israel, is one of the worlds top-ranking, multidisciplinary research institutions. at any one time, several thousand scientists, staff and students are involved in hundreds of research…

Science & Tech
5
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
6
Jewish Federation Council of Greater La

Based on jewish values, the jewish federation of greater los angeles convenes and leads the community and leverages its resources to assure the continuity of the jewish people, support a secure state of israel, care for jews in need here…

Philanthropy
7
Minneapolis Jewish Federation

Minneapolis jewish federation is a nonprofit organization that promotes a culture of philanthropy, leverages resources to meet local and global jewish needs, and facilitates community planning to ensure a thriving and secure future.

Philanthropy
8
Stony Brook Ophthalmology University Faculty Practice Corporation

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

Health
9
Stony Brook Surgical Associates 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
The Mount Sinai Hospital

Mount sinai is committed to the advancement of the art and science of medicine through clinical excellence. the central mission consists of high-quality patient care and teaching conducted in an atmosphere of social concern and scholarly…

Health
11
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
12
The Feinstein Institutes for Medical Research

The feinstein institute for medical research ("the institute") is the research branch of northwell health ("northwell"). through its affiliation with northwell, the institute's mission is to bridge the gap between biomedical research and…

Health
How this is measured
The grantee most central to the portfolio’s shape is American Friends of Hebrew University Inc; the most unlike its peers is Save Lucy Committee Inc. 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

56 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. 56 of the 102 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)
10
Early backer (in before they grew)
55/56
Grantees still filing
35/56
Grew since first funded

Where the money sits, by cause and then by grantee

ABRAMSON CANCER CENTER: $105,150 · OtherABRAMSON CANCER CENTERABRAMSON CANTER CENTER UNIVPA: $75,000 · OtherABRAMSON CANTER CENTER UNIVPATUFTS MEDICAL CENTER: $70,000 · OtherTUFTS MEDICAL CENTERJEVS HUMAN SERVICES: $60,467 · OtherJEVS HUMAN SERVICESMEMORIAL SLOAN KETTERING: $60,000 · OtherMEMORIAL SLOAN KETTERINGJFK MEDICAL CENTER: $50,000 · OtherPENN STATE UNIVERSITY: $42,500 · OtherPhilabundance: $37,000 · Other+57 more: $568,542 · Other+57 moreAMERICAN FRIENDS OF MAGEN DAVID ADOM: $218,000 · InternationalAMERICAN FRIENDS …AMERICAN FRIENDS OF ISRAELI NAVY SEALS INC: $60,000 · InternationalAMERICAN FRIENDS …AMERICAN FRIENDS OF NATAL INC: $30,000 · InternationalAMERICAN FRIENDS …AMERICAN FRIENDS OF HEBREW UNIVERSITY INC: $17,000 · InternationalAMERICAN SOCIETY FOR TECHNION ISRAEL INSTITUTE OF TECHNOLOGY INC: $16,000 · InternationalLANKENAU MEDICAL CENTER FOUNDATION: $245,000 · HealthLANKENAU MEDIC…STROBIS GLAUCOMA FOUNDATION INC: $20,000 · HealthSTROBIS GLAUCO…FENWAY COMMUNITY HEALTH CENTER INC: $10,167 · Health+3 more: $9,000 · HealthJEWISH FEDERATION OF GREATER PHILADELPHIA: $161,000 · PhilanthropyJEWISH FEDER…JEWISH FEDERATION OF SOUTH PALM BEACH COUNTY INC: $46,000 · PhilanthropyJEWISH FEDER…ROBIN HOOD FOUNDATION: $26,500 · PhilanthropyROBIN HOOD F…+2 more: $6,500 · PhilanthropyFRIENDS OF UNITED HATZALAH INC: $30,000 · Arts & CultureCURTIS INSTITUTE OF MUSIC: $25,000 · Arts & CultureAMERICAN SOCIETY FOR YAD VASHEM INC: $25,000 · Arts & CultureTHE JEWISH MUSEUM: $22,000 · Arts & CulturePHILADELPHIA MUSEUM OF ART: $20,900 · Arts & CultureThe Chevra Inc: $7,000 · Arts & Culture+3 more: $6,500 · Arts & CultureJEWISH RELIEF AGENCY: $60,000 · Human ServicesPROJECT HOME: $31,900 · Human ServicesMOUNT SINAI HEALTH SYSTEM INC: $10,000 · Human ServicesKAVOD: $5,800 · Human Services+1 more: $250 · Human ServicesTHE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND: $20,000 · EducationMIGHTY WRITERS: $13,000 · EducationElevate 215: $12,500 · EducationICAHN SCHOOL OF MEDICINE AT MOUNT SINAI: $10,000 · EducationNORTHEASTERN UNIVERSITY: $10,000 · EducationMORRIS AND ROSE CASKEY TORAH ACADEMY OF GREATER PHILADELPHIA: $4,000 · Education+1 more: $1,250 · Education
Other$1,068,659International$341,000Health$284,167Philanthropy$240,000Arts & Culture$136,400Human Services$107,950Education$70,750

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 budgetLANKENAU MEDICAL CENTER FOUNDATION: $245,000 over 6y, 0.3% of budgetAMERICAN FRIENDS OF MAGEN DAVID ADOM: $218,000 over 6y, 0.1% of budgetJEWISH FEDERATION OF GREATER PHILADELPHIA: $161,000 over 6y, 0.1% of budgetJEVS HUMAN SERVICES: $60,467 over 5y, 0.0% of budgetJEWISH RELIEF AGENCY: $60,000 over 5y, 0.6% of budgetAMERICAN FRIENDS OF ISRAELI NAVY SEALS INC: $60,000 over 6y, 1.1% of budgetJEWISH FEDERATION OF SOUTH PALM BEACH COUNTY INC: $46,000 over 6y, 0.0% of budgetPhilabundance: $37,000 over 6y, 0.0% of budgetPROJECT HOME: $31,900 over 6y, 0.0% of budgetAMERICAN FRIENDS OF NATAL INC: $30,000 over 3y, 0.2% of budgetFRIENDS OF UNITED HATZALAH INC: $30,000 over 3y, 0.0% of budgetROBIN HOOD FOUNDATION: $26,500 over 5y, 0.0% of budgetCURTIS INSTITUTE OF MUSIC: $25,000 over 6y, 0.0% of budgetAMERICAN SOCIETY FOR YAD VASHEM INC: $25,000 over 2y, 0.2% of budgetANTI-DEFAMATION LEAGUE: $24,500 over 6y, 0.0% of budgetTHE JEWISH MUSEUM: $22,000 over 2y, 0.1% of budgetPHILADELPHIA MUSEUM OF ART: $20,900 over 6y, 0.0% of budgetTHE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND: $20,000 over 4y, 0.0% of budgetSTROBIS GLAUCOMA FOUNDATION INC: $20,000 over 4y, 20% of budgetAMERICAN FRIENDS OF HEBREW UNIVERSITY INC: $17,000 over 3y, 0.0% of budgetJEWISH LEARNING VENTURE: $16,000 over 5y, 0.4% of budgetAMERICAN SOCIETY FOR TECHNION ISRAEL INSTITUTE OF TECHNOLOGY INC: $16,000 over 2y, 0.0% of budgetMIGHTY WRITERS: $13,000 over 5y, 0.1% of budgetElevate 215: $12,500 over 2y, 0.1% of budgetFENWAY COMMUNITY HEALTH CENTER INC: $10,167 over 4y, 0.0% of budgetICAHN SCHOOL OF MEDICINE AT MOUNT SINAI: $10,000 over 1y, 0.0% of budgetNORTHEASTERN UNIVERSITY: $10,000 over 2y, 0.0% of budgetSOUTHERN POVERTY LAW CENTER INC: $10,000 over 1y, 0.0% of budgetFREE LIBRARY OF PHILADELPHIA FOUNDATION: $9,000 over 3y, 0.0% of budgetThe Chevra Inc: $7,000 over 3y, 0.4% of budgetTHE EILEEN YOUTIE FOUNDATION INC: $6,000 over 2y, 1.4% of budgetKAVOD: $5,800 over 3y, 0.0% of budgetTHE CHILDREN'S HOSPITAL OF PHILADELPHIA FOUNDATION: $5,000 over 1y, 0.0% of budgetMORRIS AND ROSE CASKEY TORAH ACADEMY OF GREATER PHILADELPHIA: $4,000 over 2y, 0.0% of budgetVOLUNTEER MEDICAL SERV CORPS OF LM & NAR: $3,000 over 3y, 0.0% of budgetSAVE LUCY COMMITTEE INC: $3,000 over 4y, 0.2% of budgetLONG BEACH ISLAND FOUNDATION OF THE ARTS AND SCIENCES: $3,000 over 2y, 0.4% of budgetPHILADELPHIA YOUTH BASKETBALL INC: $3,000 over 3y, 0.1% of budgetTHE FRANKLIN INSTITUTE: $3,000 over 1y, 0.0% of budgetGLADWYNE FIRE COMPANY: $3,000 over 3y, 0.2% of budgetFriends of Suenos: $2,500 over 3y, 1.2% of budgetBoca Raton Regional Hospital Foundation Inc: $2,000 over 1y, 0.0% of budgetTHE CITY AND COUNTRY SCHOOL INC: $1,500 over 3y, 0.0% of budgetYOUNG SCHOLARS CHARTER SCHOOL: $1,250 over 1y, 0.0% of budgetCystic Fibrosis Research Fund Inc: $1,000 over 1y, 0.1% of budgetTeam Steady Buckets: $1,000 over 2y, 0.1% of budgetTHE IRISH REPERTORY THEATRE COMPANYINC: $850 over 1y, 0.0% of budgetMAZON A Jewish Response to Hunger: $750 over 3y, 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 LANKENAU MEDICAL CENTER FOUNDATION ↗
  • Who funds AMERICAN FRIENDS OF MAGEN DAVID ADOM ↗
  • Who funds JEWISH FEDERATION OF GREATER PHILADELPHIA ↗
  • Who funds JEVS HUMAN SERVICES ↗
  • Who funds JEWISH RELIEF AGENCY ↗
  • Who funds AMERICAN FRIENDS OF ISRAELI NAVY SEALS INC ↗
  • Who funds JEWISH FEDERATION OF SOUTH PALM BEACH COUNTY INC ↗
  • Who funds Philabundance ↗
  • Who funds PROJECT HOME ↗
  • Who funds AMERICAN FRIENDS OF NATAL INC ↗
  • Who funds FRIENDS OF UNITED HATZALAH INC ↗
  • Who funds ROBIN HOOD FOUNDATION ↗
  • Who funds CURTIS INSTITUTE OF MUSIC ↗
  • Who funds AMERICAN SOCIETY FOR YAD VASHEM INC ↗
  • Who funds ANTI-DEFAMATION LEAGUE ↗
  • Who funds THE JEWISH MUSEUM ↗
  • Who funds PHILADELPHIA MUSEUM OF ART ↗
  • Who funds THE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND ↗
  • Who funds STROBIS GLAUCOMA FOUNDATION INC ↗
  • Who funds AMERICAN FRIENDS OF HEBREW UNIVERSITY INC ↗
  • Who funds JEWISH LEARNING VENTURE ↗
  • Who funds AMERICAN SOCIETY FOR TECHNION ISRAEL INSTITUTE OF TECHNOLOGY 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.

Tzedakah FoundationPA22× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Tzedakah Foundation · The Saramar Charitable Fund · Daniel M Tabas Family Foundation · Erlbaum Family Foundation · Jewish Federation of Greater Philadelphia · The Jill and Mark Fishman Foundation · Georgejack & Joan Shuster Foundation Inc C/O Gail Norry · The Solomon & Sylvia Bronstein Fdn · Katz Family Charitable Trust · The Clayman Foundation · The Snider Foundation · Connelly Foundation

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 The Sidewater Family Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from The Sidewater Family Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 30%1%5%11%20%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 11%
  • Fenway Community Health Center Inc: 27% of income from government
  • Save Lucy Committee Inc: 11% of income from government
  • Northeastern University: 7% of income from government
  • Florida Sheriffs Association Inc: 4% of income from government
no gov moneyreceives it· size = income
3get no government money at all
13report government grants on their 990 we could not trace to a source (not plotted)
0rely 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 The Sidewater Family Foundation Inc?

Find your warmest path to The Sidewater Family Foundation 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 102 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

Play a game based on Sidewater Family’s filings →

More from the funding graph