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Three Sibs Foundation Inc at a glance

· Private foundation

Three Sibs 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.

$323k
Granted FY2025still arriving
17
Grants FY2025still arriving
8
States reached
$167k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2021 to 2024.

Health$159kEnvironment$103kHuman Services$50kEducation$38kArts & Culture$30kPublic Benefit$25kFood & Nutrition$21kEmployment$15kOther$0
02FY2025 · 17 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k9 grants · $51k
  • $10k–50k7 grants · $105k
  • $50k–250k1 grant · $167k
$7,500
Median grant
8
States reached
$17M
Total assets
Largest grants
RecipientAmount
ATLANTA BOTANICAL GARDEN$167,000
PRO PUBLICA INC$25,000
COX EMPLOYEE RELIEF FUND INC$20,000
ABILIS INC$20,000
CAPE COD CHILDREN'S PLACE INC$10,000
350 ORG$10,000
SHEPHERD CENTER FOUNDATION INC$10,000
NATURAL RESOURCES DEFENSE COUNCIL$10,000
ENDEAVOR THERAPEUTIC HORSEMANSHIP INC$7,500
ONE FAMILY MEMPHIS$7,500
GREENING YOUTH FOUNDATION INC$7,500
BRIDGE21 PARK CITY CORP$5,000
ONWARD A LEGACY FOUNDATION$5,000
GOOD BEGINNINGS OF CENTRAL VERMONT$5,000
FAMILY CENTERS INC$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 (FY22–25, $53k) land where the poverty rate runs at 14%, against an area that typically sits at 11%. 90% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%ONE FAMILY MEMPHIS: $8k → 17%COX EMPLOYEE RELIEF FUND INC: $20k → 13%GOOD BEGINNINGS OF CENTRAL VERMONT: $5k → 9%ONE FAMILY MEMPHIS: $5k → 17%ONE FAMILY MEMPHIS: $8k → 17%ONE FAMILY MEMPHIS: $8k → 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

IL
NY
MA
CT
CA
CO
VA
TN
NC
GA
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.

60%of every dollar goes to organizations it has funded before.
$468k · 16 repeat orgs$315k to everyone else

16 repeat relationships: 11 still active in FY2025, 5 since wound down; 6 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

16
9

Total granted

$468k
$103k

Median revenue growth · since first grant

+22%
+23%

Still filing today

81%
89%

New vs renewed · share of each year

In FY2025, 34% of grant dollars renewed an existing relationship; $212k went to new ones.

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

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

’21’22’23’24’25
EnvironmentHealthEducationHuman ServicesPhilanthropyEmploymentOther
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

  • PRO PUBLICA INC
    3× · 2022–2025 · $55k · revenue +44%
  • AI
    ABILIS INC
    2× · 2023–2025 · $33k · revenue +30%
  • CC
    CAPE COD CHILDREN'S PLACE INC
    3× · 2023–2025 · $30k · revenue +4%

Funded once

  • RP
    REACH PREP INCgraduated
    one grant, 2024 · $30k · revenue +30%
  • PP
    PRO PUBLICA INC
    one grant, 2024 · $25k
  • TB
    THE BRAYDEN COLE HINCK FOUNDATION INC
    one grant, 2024 · $10k
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
Central Indiana Corporate Partnership Inc

Central indiana corporate partnership (cicp) is an alliance of indiana's business and research university leaders coming together to foster long-term prosperity for the region. cicp's mission is to transform the economy of indiana in order…

Community Improvement
2
Conservation International Foundation

Ci works to spotlight and secure the critical benefits that nature provides to humanity.

Environment
3
Cdp North America Inc

Cdp north america, inc. 's ("cdp-na") vision for the future is a thriving economy that works for people and planet in the long term. we focus investors and companies on taking urgent action to build a truly sustainable economy by measuring…

Environment
4
The Climate Group Inc

Climate group advances climate action by mobilizing business and government leadership to drive systemic decarbonization across energy, transport, and industry, while engaging the public through large-scale convenings and global platforms.…

Environment
5
Ceres Inc

Ceres is a nonprofit advocacy organization working to accelerate the transition to a cleaner, more just, and resilient world. through education and research, we make the business case for action on the most pressing sustainability…

Environment
6
The Conservation Fund a Nonprofit Corporation

The conservation fund is in the business of conservation, creating innovative solutions that drive nature-based action for climate protection, sustainable economies and vibrant communities.

Environment
7
Fresh Energy

Shape and drive bold policy solutions to achieve equitable carbon-neutral economies.

Environment
8
National Forest Foundation

The national forest foundation (nff), chartered by congress, turns america's love of nature into meaningful action for 193-million acre national forest system through on the ground program work and grant making activities, and accepts and…

Recreation & Sports
9
Chief Executives for Corporate Purpose Inc

Chief executives for corporate purpose (cecp) is the only business counsel and network dedicated to driving measurable returns on purpose. we promote responsible purpose-driven business as it increases customer loyalty, builds employee…

Philanthropy
10
Greenpeace Fund Inc

Greenpeace fund, inc. is a nonprofit corporation whose activities are directed primarily at protecting and preserving the environment. activities are executed mainly through the consideration and funding of grants to other organizations.

Environment
11
World Wildlife Fund Inc

Wwf's mission is to conserve nature and reduce the most pressing threats to the diversity of life on earth. (continued on schedule o)

Environment
12
Commonwealth Care Alliance Inc

Commonwealth care alliance, inc.'s mission is to improve the health and well-being of people with significant needs by innovating, coordinating and providing the highest quality, individualized care.

Health
How this is measured
The grantee most central to the portfolio’s shape is Shepherd Center Foundation Inc; the most unlike its peers is One Family Memphis. 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

29 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. 29 of the 32 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.

1
Load-bearing (≥25% of a budget)
4
Early backer (in before they grew)
28/29
Grantees still filing
16/29
Grew since first funded

Where the money sits, by cause and then by grantee

THE ATLANTA BOTANICAL GARDEN INC: $167,000 · EnvironmentTHE ATLANTA BOTANICAL GARDEN INCGREENING YOUTH FOUNDATION INC: $27,500 · EnvironmentGREENING YOUTH FOUNDATION INC350ORG: $20,000 · Environment350ORGNATURAL RESOURCES DEFENSE COUNCIL INC: $20,000 · EnvironmentNATURAL RESOURCES DEFENSE COUNCIL …+1 more: $8,000 · EnvironmentMERCY CARE FOUNDATION INC: $100,000 · HealthMERCY CARE FOUNDATION I…ABILIS INC: $32,500 · HealthABILIS INCENDEAVOR THERAPEUTIC HORSEMANSHIP INC: $13,500 · HealthENDEAVOR THERAPEUTIC HO…The Stamford Hospital: $10,000 · HealthThe Stamford Hospital+1 more: $5,000 · HealthSTAMFORD HOSPITAL HEALTH FOUNDATION INC: $30,000 · OtherSTAMFORD HOSPITAL HEALT…PRO PUBLICA INC: $25,000 · OtherPRO PUBLICA INCFAMILY CENTERS INC: $15,000 · OtherFAMILY CENTERS INCCOUNTRY FOOD TRUST: $11,326 · OtherCOUNTRY FOOD TRUSTTHE NATURE CONSERVANCY: $10,000 · OtherTHE NATURE CONSERVANCYCOFFEE FOR GOOD INC: $20,000 · OtherCOFFEE FOR GOOD INCTHE BRAYDEN COLE HINCK FOUNDATION INC: $10,000 · OtherTHE BRAYDEN COLE HINCK …SHEPHERD CENTER FOUNDATION INC: $10,000 · OtherSHEPHERD CENTER FOUNDAT…BOYS & GIRLS CLUB OF GREENWICH: $13,000 · OtherBOYS & GIRLS CLUB OF GR…Feeding America: $10,000 · OtherFeeding America+2 more: $10,000 · Other+2 moreREACH PREP INC: $30,000 · EducationREACH PREP…CAPE COD CHILDREN'S PLACE INC: $30,000 · EducationCAPE COD C…GREENWICH COUNTRY DAY SCHOOL INC: $5,000 · EducationGREENWICH …ONWARD A LEGACY FOUNDATION: $5,000 · EducationONWARD A L…Children of Fallen Patriots Foundation: $2,500 · EducationPRO PUBLICA INC: $55,000 · Arts & CultureONE FAMILY MEMPHIS: $27,500 · Human ServicesCOX EMPLOYEE RELIEF FUND INC: $20,000 · Human ServicesGOOD BEGINNINGS OF CENTRAL VERMONT: $5,000 · Human ServicesMancos Valley Resources: $45,000 · Civil Rights
Environment$242,500Health$161,000Other$164,326Education$72,500Arts & Culture$55,000Human Services$52,500Civil Rights$45,000

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

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetMERCY CARE FOUNDATION INC: $100,000 over 4y, 0.5% of budgetPRO PUBLICA INC: $55,000 over 3y, 0.0% of budgetMancos Valley Resources: $45,000 over 2y, 4.5% of budgetABILIS INC: $32,500 over 2y, 0.1% of budgetREACH PREP INC: $30,000 over 1y, 1.6% of budgetCAPE COD CHILDREN'S PLACE INC: $30,000 over 3y, 0.3% of budgetONE FAMILY MEMPHIS: $27,500 over 4y, 0.4% of budgetGREENING YOUTH FOUNDATION INC: $27,500 over 4y, 0.1% of budgetCOFFEE FOR GOOD INC: $20,000 over 5y, 0.8% of budget350ORG: $20,000 over 2y, 0.1% of budgetCOX EMPLOYEE RELIEF FUND INC: $20,000 over 1y, 1.7% of budgetNATURAL RESOURCES DEFENSE COUNCIL INC: $20,000 over 2y, 0.0% of budgetFAMILY CENTERS INC: $15,000 over 4y, 0.0% of budgetENDEAVOR THERAPEUTIC HORSEMANSHIP INC: $13,500 over 3y, 0.3% of budgetBOYS & GIRLS CLUB OF GREENWICH: $13,000 over 5y, 0.0% of budgetTHE BRAYDEN COLE HINCK FOUNDATION INC: $10,000 over 1y, 0.6% of budgetThe Stamford Hospital: $10,000 over 1y, 0.0% of budgetTHE NATURE CONSERVANCY: $10,000 over 1y, 0.0% of budgetFeeding America: $10,000 over 1y, 0.0% of budgetSHEPHERD CENTER FOUNDATION INC: $10,000 over 1y, 51% of budgetTHE GREENWICH LAND TRUST INC: $8,000 over 3y, 0.1% of budgetGREENWICH COUNTRY DAY SCHOOL INC: $5,000 over 1y, 0.0% of budgetGOOD BEGINNINGS OF CENTRAL VERMONT: $5,000 over 1y, 3.5% of budgetBELOVED ASHEVILLE: $5,000 over 1y, 0.0% of budgetBRIDGE21 PARK CITY CORP: $5,000 over 1y, 1.2% of budgetCOLORADO DISCOVER ABILITY: $5,000 over 1y, 1.6% of budgetChildren of Fallen Patriots Foundation: $2,500 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.

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.

Morgan Stanley Global…National Philanthropi…Vanguard Charitable E…Donor Advised Charita…American Online Givin…Fidelity Investments …Amazonsmile Foundation
Morgan Stanley Global Impact Funding Trust IncIN9.8× affinity5 shared granteesties to 6 of 6Hover any node to trace its alignments.Compare side by side →

Open a dossier: Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · American Online Giving Foundation Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile 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 Three Sibs Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Three Sibs Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 50%0%1%3%5%funder's share of their income ↑0%23%45%68%90%share of the org’s income from government →median 20%
  • Abilis Inc: 74% of income from government
  • Cape Cod Children's Place Inc: 47% of income from government
  • Family Centers Inc: 20% of income from government
  • Boys & Girls Club of Greenwich: 7% of income from government
  • The Stamford Hospital: 0% of income from government
no gov moneyreceives it· size = income
5get no government money at all
2report government grants on their 990 we could not trace to a source (not plotted)
1rely on government for over half their income
⤢ axis zoomed · 0–90%
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 Three Sibs Foundation Inc?

Find your warmest path to Three Sibs 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 32 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 Three Sibs’ filings →

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home