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· Private foundation

The Rein 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.

$428k
Granted FY2025still arriving
34
Grants FY2025still arriving
9
States reached
$250k
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, FY2017 to 2025.

Environment$659kEducation$284kHealth$204kRecreation & Sports$165kReligion$139kArts & Culture$49kPhilanthropy$24kCrime & Legal$22kOther$0
02FY2025 · 34 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k27 grants · $88k
  • $10k–50k6 grants · $90k
  • $250k+1 grant · $250k
$5,000
Median grant
9
States reached
$1.3M
Total assets
Largest grants
RecipientAmount
NANTUCKET CONSERVATION FOUNDATION$250,000
NANTUCKET COMMUNITY SAILING$30,000
CLEVELAND CLINIC FOUNDATION$15,000
CONGREGATIONAL CHURCH OF NEW CANAAN$15,000
NANTUCKET COTTAGE HOSPITAL$10,000
DARDEN SCHOOL FOUNDATION$10,000
NANTUCKET CONSERVATION FOUNDATION$10,000
WAKE FOREST UNIVERSITY$7,500
NANTUCKET GOLF CLUB FOUNDATION$5,000
ROYAL PIONCIANA CHAPEL$5,000
JUPITER ISLAND MEDICAL CENTER FOUND$5,000
A SAFE PLACE$5,000
WAVENY LIFE CARE NETWORK$5,000
STAMFORD HOSPITAL$5,000
LOST TREE FOUNDATION$5,000
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 (FY17–24, $4k) land where the poverty rate runs at 10%, against an area that typically sits at 8%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 8%HUCKLEBERRY YOUTH PROGRAMS: $1k → 10%HUCKLEBERRY YOUTH PROGRAMS: $1k → 10%HUCKLEBERRY YOUTH PROGRAMS: $750 → 10%HUCKLEBERRY YOUTH PROGRAMS: $750 → 10%HUCKLEBERRY YOUTH PROGRAMS: $500 → 10%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

NH
NY
MA
OH
CT
RI
CA
VA
NC
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.

97%of every dollar goes to organizations it has funded before.
$1.5M · 32 repeat orgs$47k to everyone else

32 repeat relationships: 25 still active in FY2025, 7 since wound down; 6 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

32
10

Total granted

$1.5M
$27k

Median revenue growth · since first grant

+19%
+57%

Still filing today

47%
60%

New vs renewed · share of each year

In FY2025, 95% of grant dollars renewed an existing relationship; $20k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
EnvironmentHealthEducationArts & CulturePhilanthropyHuman ServicesOther
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

  • NC
    NANTUCKET CONSERVATION FOUNDATION INC
    9× · 2017–2025 · $625k · revenue +405%
  • WAKE FOREST UNIVERSITY
    9× · 2017–2025 · $65k · revenue +30%
  • TN
    THE NEW CANAAN LIBRARY INC
    3× · 2021–2023 · $25k · revenue +15%

Funded once

  • TN
    THE NEW YORK YACHT CLUBgraduated
    one grant, 2020 · $8k · revenue +88%
  • NA
    NANTUCKET ATHENEUM INCgraduated
    one grant, 2021 · $5k · revenue +32%
  • NS
    NANTUCKET SAILING MUSEUM
    one grant, 2024 · $5k
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
Nantucket Historical Association

The nantucket historical association preserves and interprets the history of nantucket through its programs, collections, and properties, in order to promote the island's significance and foster an appreciation of it among all audiences.

Arts & Culture
2
Great Harbor Yacht Club Foundation Inc

The purpose of the corporation is to act as a not-for-profit organization with a primary mission of promoting the health of nantucket islands harbor and its marine ecosystem. the corporation will work with the nantucket department of…

Environment
3
Nantucket Arts Council Inc

Support and encourage a collaborative community of the visual, performing and literary arts through education, grants, scholarships and events.

Arts & Culture
4
Nantucket Yacht Club

To provide means for the recreation and entertainment of its members, by establishing and maintaining a club with the proper buildings, grounds, and facilities to promote yachting, sports and social activities.

—
5
Alliance to Protect Nantucket Sound Inc

The alliance to protect nantucket sound is a 501(c)(3) non-profit environmental organization dedicated to the permanent preservation of nantucket sound, the historic body of water that lies between cape cod, martha's vineyard, and…

Environment
6
Aquidneck Island Planning Commission

Aipc works to preserve and improve the environment, economy and quality of life on aquidneck island to ensure that the island remains a great place to live, work, play and thrive.

Community Improvement
7
New Bedford Yacht Club

To have a membership composed of yachting and boating enthusiasts of good character and all ages that is predominantly resident to local area, represents a broad spectrum of the community, and is appropriate in size for our facilities; to…

—
8
Nantucket Island Chamber of Commerce

The mission of the nantucket island chamber of commerce is promoting the interests and viability of its nearly 700 members. the members are comprised of businesses, non-profit organizartions, individuals, and the island business community…

Community Improvement
9
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
10
New Canaan Land Conservation Trust Inc

The mission of the new canaan land trust is to foster a connection between the new canaan community and its natural resources through the conservation and sustainable stewardship of our open space.

—
11
Northern Neck Land Conservancy

Northern neck land conservancy's mission is to preserve the rural heritage of the northern neck and essex county by conserving their lands, water, economies and culture for future generations. the land conservancy assists landowners who…

Environment
12
Nantucket Preservation Trust Inc

To educate and encourage property owners as to what is possible to preserve and protect the historical elements of their properties and to raise awareness of the community about the value of and need for historic architectural preservation.

Arts & Culture
How this is measured
The grantee most central to the portfolio’s shape is Nantucket Community Sailing Inc; the most unlike its peers is Wake Forest University. 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

27 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. 27 of the 50 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)
7
Early backer (in before they grew)
27/27
Grantees still filing
20/27
Grew since first funded

Where the money sits, by cause and then by grantee

NANTUCKET CONSERVATION FOUNDATION INC: $625,000 · EnvironmentNANTUCKET CONSERVATION FOUNDATION INC+3 more: $17,500 · EnvironmentCONGREGATIONAL CHURCH OF NEW CANAAN: $121,000 · OtherCONGREGATIONAL CHURCH OF NEW CANAANDARDEN SCHOOL FOUNDATION: $105,000 · OtherDARDEN SCHOOL FOUNDATIONCLEVELAND CLINIC FOUNDATION: $75,000 · OtherCLEVELAND CLINIC FOUNDATIONIYRS SCHOOL OF TECHNOLOGY: $58,500 · OtherIYRS SCHOOL OF TECHNOLOGYNANTUCKET COTTAGE HOSPITAL: $33,000 · OtherNANTUCKET COMMUNITY HOSPITAL: $33,000 · OtherLOST TREE FOUNDATION: $29,000 · Other+26 more: $169,700 · Other+26 moreNANTUCKET COMMUNITY SAILING INC: $143,550 · Recreation & SportsNANTUCKET …WAKE FOREST UNIVERSITY: $65,100 · EducationTHE NEW CANAAN LIBRARY INC: $24,999 · EducationPRISON UNIVERSITY PROJECT INC DBA MOUNT TAMALPAIS COLLEGE: $11,500 · Education+1 more: $1,500 · EducationNANTUCKET GOLF CLUB FOUNDATION INC: $15,000 · PhilanthropyNEW CANAAN COMMUNITY FOUNDATION INC: $11,000 · PhilanthropyNANTUCKET YACHT CLUB FOUNDATION INC: $1,000 · PhilanthropyWAVENY LIFECARE NETWORK INC: $9,500 · HealthVOICES OF SEPTEMBER 11 INC: $6,900 · HealthNEW ENGLAND LIFE FLIGHT INC: $5,000 · HealthThe Stamford Hospital: $5,000 · HealthNEW YORK YACHT CLUB FOUNDATION: $14,000 · Community Improvement
Environment$642,500Other$624,200Recreation & Sports$143,550Education$103,099Philanthropy$27,000Health$26,400Community Improvement$14,000

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 budgetNANTUCKET CONSERVATION FOUNDATION INC: $625,000 over 9y, 1.5% of budgetNANTUCKET COMMUNITY SAILING INC: $143,550 over 8y, 1.7% of budgetWAKE FOREST UNIVERSITY: $65,100 over 9y, 0.0% of budgetTHE NEW CANAAN LIBRARY INC: $24,999 over 3y, 0.2% of budgetNetwork on Women in Prison dba Legal Services for Prisoners w Children: $20,000 over 5y, 0.1% of budgetNANTUCKET GOLF CLUB FOUNDATION INC: $15,000 over 3y, 0.1% of budgetNEW YORK YACHT CLUB FOUNDATION: $14,000 over 3y, 0.1% of budgetWAVENY PARK CONSERVANCY INC: $13,000 over 4y, 0.7% of budgetNANTUCKET SUSTAINABLE DEVELOPMENT CORPORATION: $13,000 over 4y, 0.7% of budgetPRISON UNIVERSITY PROJECT INC DBA MOUNT TAMALPAIS COLLEGE: $11,500 over 2y, 0.4% of budgetELLA BAKER CENTER FOR HUMAN RIGHTS: $11,000 over 4y, 0.1% of budgetNEW CANAAN COMMUNITY FOUNDATION INC: $11,000 over 6y, 0.1% of budgetTHE NEW YORK YACHT CLUB: $8,000 over 1y, 0.1% of budgetVOICES OF SEPTEMBER 11 INC: $6,900 over 4y, 0.3% of budgetNEW ENGLAND LIFE FLIGHT INC: $5,000 over 4y, 0.0% of budgetThe Stamford Hospital: $5,000 over 1y, 0.0% of budgetA SAFE PLACE INC: $5,000 over 1y, 0.1% of budgetNANTUCKET ATHENEUM INC: $5,000 over 1y, 0.1% of budgetHUCKLEBERRY YOUTH PROGRAMS INC: $4,000 over 5y, 0.0% of budgetNANTUCKET LAND & WATER COUNCIL INC: $2,500 over 1y, 0.2% of budgetNew Canaan Nature Center Association Inc: $2,000 over 3y, 0.0% of budgetSOCIAL GOOD FUND INC: $1,500 over 1y, 0.0% of budgetMuseum of Modern Art: $1,200 over 1y, 0.0% of budgetNANTUCKET YACHT CLUB FOUNDATION INC: $1,000 over 1y, 0.8% of budgetFUTURE 5 INC: $1,000 over 1y, 0.1% 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 NANTUCKET CONSERVATION FOUNDATION INC ↗
  • Who funds NANTUCKET COMMUNITY SAILING INC ↗
  • Who funds WAKE FOREST UNIVERSITY ↗
  • Who funds THE NEW CANAAN LIBRARY INC ↗
  • Who funds Network on Women in Prison dba Legal Services for Prisoners w Children ↗
  • Who funds NANTUCKET GOLF CLUB FOUNDATION INC ↗
  • Who funds NEW YORK YACHT CLUB FOUNDATION ↗
  • Who funds WAVENY PARK CONSERVANCY INC ↗
  • Who funds NANTUCKET SUSTAINABLE DEVELOPMENT CORPORATION ↗
  • Who funds PRISON UNIVERSITY PROJECT INC DBA MOUNT TAMALPAIS COLLEGE ↗
  • Who funds ELLA BAKER CENTER FOR HUMAN RIGHTS ↗
  • Who funds NEW CANAAN COMMUNITY FOUNDATION INC ↗
  • Who funds THE NEW YORK YACHT CLUB ↗
  • Who funds VOICES OF SEPTEMBER 11 INC ↗
  • Who funds NEW ENGLAND LIFE FLIGHT INC ↗
  • Who funds The Stamford Hospital ↗
  • Who funds A SAFE PLACE INC ↗
  • Who funds NANTUCKET ATHENEUM INC ↗
  • Who funds HUCKLEBERRY YOUTH PROGRAMS INC ↗
  • Who funds NANTUCKET LAND & WATER COUNCIL INC ↗
  • Who funds BLIND BROOK FOUNDATION 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.

Ernst & Elfriede Frank Foundation IncNY19.8× affinity7 shared granteesties to 6 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Ernst & Elfriede Frank Foundation Inc · Nancy Sayles Day Foundation · Half Moon Foundation · Hobbs Family Charitable Trust · The Melville Foundation · Gilbert Verney Foundation · King Spruce Company · MLE Foundation Inc · Community Foundation for Nantucket Inc · Charina Foundation Inc Richard Menschel · New Canaan Community Foundation Inc · The Ayco Charitable 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 Rein Family Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from The Rein Family Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 90%0%1%3%5%funder's share of their income ↑0%13%25%38%50%share of the org’s income from government →median 5%
  • A Safe Place Inc: 45% of income from government
  • New England Life Flight Inc: 5% of income from government
  • Nantucket Conservation Foundation Inc: 4% of income from government
  • The Stamford Hospital: 0% of income from government
no gov moneyreceives it· size = income
9get no government money at all
6report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–50%
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 Rein Family Foundation Inc?

Find your warmest path to The Rein 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 50 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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