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The 5 51 5 Foundation Inc at a glance

· Private foundation

The 5 51 5 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.

$336k
Granted FY2025still arriving
17
Grants FY2025still arriving
8
States reached
$170k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0198% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2019 to 2025.

Education$6.0MRecreation & Sports$301kArts & Culture$191kFood & Nutrition$151kReligion$75kAnimals$65kInternational$41kHealth$37kOther$0
02FY2025 · 17 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k11 grants · $24k
  • $10k–50k4 grants · $43k
  • $50k–250k2 grants · $270k
$5,000
Median grant
8
States reached
$457k
Total assets
Largest grants
RecipientAmount
Manhattan Theatre Club$170,000
Central Park Conservancy Inc$100,000
Catholic Guardian Services$12,500
Summer Search$10,000
The TEAK Fellowship Inc$10,000
TEACHERS COLLEGE COLUMBIA UNIVERSITY$10,000
David M Hunt Library & School Association$7,500
The Metropolitan Museum of Art$5,000
Denison University$5,000
Sharon Playhouse Tri-State Center for the Arts Inc$1,000
Appalachian Trail Conservancy$1,000
122 East 66th Street Foundation$1,000
Lubavitch on the Palisades$1,000
Trustees of Reservations$1,000
The Fund for Park Avenue$500
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 (FY19–25, $177k) land where the poverty rate runs at 7%, against an area that typically sits at 8%. 7% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 8%Tarjimly Inc: $15k → 8%ORKESTAI FARM: $50k → 6%ORKESTAI FARM: $50k → 6%The League for people with disabilities: $2k → 19%ORKESTAI FARM: $50k → 6%The TEAK Fellowship Inc: $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

NH
NY
MA
OH
PA
NJ
CT
CA
WV
VA
MD
DC
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.

56%of every dollar goes to organizations it has funded before.
$3.3M · 26 repeat orgs$2.6M to everyone else

Grantees it renews have grown median revenue +36% since the first grant, against +3% for those funded once.

26 repeat relationships: 12 still active in FY2025, 14 since wound down; 5 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

26
25

Total granted

$3.3M
$2.4M

Median revenue growth · since first grant

+36%
+3%

Still filing today

81%
72%

New vs renewed · share of each year

In FY2025, 41% of grant dollars renewed an existing relationship; $198k went to new ones.

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

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

’19’20’21’23’24’25
Arts & CultureEnvironmentEducationHuman ServicesHealthRecreation & SportsOther
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

  • JOHNS HOPKINS UNIVERSITY
    2× · 2019–2024 · $2.5M · revenue +25%
  • CP
    CENTRAL PARK CONSERVANCY INC
    3× · 2020–2025 · $300k · revenue +167%
  • TC
    Teachers College Columbia University
    3× · 2020–2025 · $45k · revenue +9%

Funded once

  • TO
    Trustees of Dartmouth College
    one grant, 2024 · $2.2M
  • EC
    EMBER CHARTER SCHOOL
    one grant, 2020 · $50k
  • GF
    GLOBAL FUND FOR CHILDREN
    one grant, 2024 · $25k · revenue +10%
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
Manhattanville University

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

Education
2
Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

—
3
The Trustees of Princeton University

Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…

Education
4
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
5
Fordham University

Fordham university, the jesuit university of new york, is committed to the discovery of wisdom and the transmission of learning, through research and through education of the highest quality. for more information, see schedule o.

Education
6
Governors Island Corporation

The governors island corporation, doing business as the trust for governors island, is the 501(c)(3) not-for-profit organization created by the city of new york and charged with the planning, redevelopment and ongoing operations of 150…

Animals
7
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
8
President and Fellows of Harvard College

Undergraduate, graduate, and professional education and research across a broad array of academic domains.

Education
9
The Baruch College Fund

The baruch college fund is an organization engaged in generating, encouraging and promoting the educational welfare of the students of the bernard m. baruch college of the city university of new york.

Education
10
New York Landmarks Conservancy Inc

The conservancy preserves and revitalizes new york's architecture. by doing so, it contributes to new york's economy, tourism and quality of life.

—
11
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
12
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
How this is measured
The grantee most central to the portfolio’s shape is Myriad Usa Inc; the most unlike its peers is Great Mountain Forest Corporation. 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

46 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. 46 of the 59 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)
7
Early backer (in before they grew)
46/46
Grantees still filing
30/46
Grew since first funded

Where the money sits, by cause and then by grantee

JOHNS HOPKINS UNIVERSITY: $2,540,000 · EducationJOHNS HOPKINS UNIVERSITYTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY: $1,000,000 · EducationTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSI…+7 more: $176,500 · EducationTrustees of Dartmouth College: $2,200,000 · OtherTrustees of Dartmouth College+22 more: $311,100 · Other+22 moreCENTRAL PARK CONSERVANCY INC: $300,000 · Recreation & Sports+1 more: $3,000 · Recreation & SportsMANHATTAN THEATRE CLUB INC: $170,000 · Arts & CultureGLOBAL FUND FOR CHILDREN: $25,000 · Arts & Culture+7 more: $16,500 · Arts & CultureORKESTAI FARM INC: $150,000 · Human ServicesTarjimly Inc: $15,000 · Human ServicesTHE TEAK FELLOWSHIP INC: $10,000 · Human Services+1 more: $2,000 · Human ServicesFOUNTAIN HOUSE INC: $20,000 · HealthLIFE SCIENCE CARES INC: $10,000 · HealthTHE FIBROLAMELLAR CANCER FOUNDATION: $5,000 · Health+1 more: $1,000 · HealthMAKE A CHANGE WORLD INC: $15,000 · EnvironmentTHE TRUSTEES OF RESERVATIONS: $6,000 · EnvironmentFUND FOR PARK AVENUE NEW YORK INC: $2,500 · EnvironmentSHARON LAND TRUST INC: $2,000 · EnvironmentBig Sur Land Trust: $2,000 · EnvironmentENVIRONMENTAL ADVOCATES NY INC: $1,000 · Environment+2 more: $1,250 · Environment
Education$3,716,500Other$2,511,100Recreation & Sports$303,000Arts & Culture$211,500Human Services$177,000Health$36,000Environment$29,750

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 budgetJOHNS HOPKINS UNIVERSITY: $2,540,000 over 2y, 0.0% of budgetTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY: $1,000,000 over 1y, 0.0% of budgetCENTRAL PARK CONSERVANCY INC: $300,000 over 3y, 0.1% of budgetMANHATTAN THEATRE CLUB INC: $170,000 over 1y, 0.4% of budgetORKESTAI FARM INC: $150,000 over 3y, 29% of budgetPRESERVE COMMUNITY FOUNDATION: $103,500 over 3y, 5.4% of budgetTeachers College Columbia University: $45,000 over 3y, 0.0% of budgetGLOBAL FUND FOR CHILDREN: $25,000 over 1y, 0.3% of budgetFOUNTAIN HOUSE INC: $20,000 over 2y, 0.0% of budgetDAVID M HUNT LIBRARY & SCHOOL ASSOCIATION INC: $17,500 over 3y, 3.7% of budgetMAKE A CHANGE WORLD INC: $15,000 over 1y, 1.5% of budgetTarjimly Inc: $15,000 over 1y, 1.2% of budgetMYRIAD USA INC: $15,000 over 1y, 0.0% of budgetCATHOLIC GUARDIAN SERVICES: $12,500 over 1y, 0.0% of budgetSUMMER SEARCH: $11,000 over 2y, 0.1% of budgetLIFE SCIENCE CARES INC: $10,000 over 1y, 0.2% of budgetDENISON UNIVERSITY: $9,000 over 5y, 0.0% of budgetTHE TRUSTEES OF RESERVATIONS: $6,000 over 6y, 0.0% of budgetMETROPOLITAN MUSEUM OF ART: $5,000 over 1y, 0.0% of budgetTHE FIBROLAMELLAR CANCER FOUNDATION: $5,000 over 1y, 0.1% of budgetJUILLIARD SCHOOL: $5,000 over 1y, 0.0% of budgetPARTNERSHIP FOR INNER CITY EDUCATION DBA PARTNERSHIP SCHOOLS: $5,000 over 1y, 0.0% of budgetTHE PARTNERSHIP FOR AFTER SCHOOL EDUCATION INC: $5,000 over 2y, 0.2% of budgetJACOB'S PILLOW DANCE FESTIVAL INC: $5,000 over 1y, 0.0% of budgetPACE UNIVERSITY: $5,000 over 1y, 0.0% of budgetDELTA GAMMA FOUNDATION: $4,000 over 4y, 0.0% of budgetGreat Mountain Forest Corporation: $4,000 over 4y, 0.2% of budget122 EAST 66TH STREET FOUNDATION INC: $3,000 over 3y, 0.3% of budgetAPPALACHIAN TRAIL CONSERVANCY: $3,000 over 3y, 0.0% of budgetFUND FOR PARK AVENUE NEW YORK INC: $2,500 over 5y, 0.0% of budgetSHARON LAND TRUST INC: $2,000 over 2y, 0.5% of budgetTHE LEAGUE FOR PEOPLE WITH DISABILITIES: $2,000 over 1y, 0.0% of budgetBig Sur Land Trust: $2,000 over 2y, 0.0% of budgetTHE DOE FUND INC: $1,100 over 3y, 0.0% of budgetSALISBURY WINTER SPORTS ASSOC INC: $1,100 over 2y, 0.5% of budgetCARMEL MISSION FOUNDATION INC: $1,000 over 1y, 0.1% of budgetSEEDS OF PEACE INC: $1,000 over 1y, 0.0% of budgetCarmel Bach Festival Inc: $1,000 over 1y, 0.0% of budgetSALISBURY VOLUNTEER AMBULANCE SERV: $1,000 over 1y, 0.2% of budgetTHE CORNER FOOD PANTRY INC: $1,000 over 2y, 0.1% of budgetENVIRONMENTAL ADVOCATES NY INC: $1,000 over 1y, 0.0% of budget'SCONSET TRUST INC: $750 over 1y, 0.0% of budgetFALLS VILLAGE-CANAAN HISTORICAL SOC: $500 over 1y, 1.8% of budgetNATIONAL PARKS CONSERVATION ASSOCIATION: $500 over 5y, 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.

Northwest Connecticut…Berkshire Taconic Com…The Bessemer Giving F…Gs Donor Advised Phil…General Atlantic Foun…Silicon Valley Commun…The Ayco Charitable F…The Goldman Sachs Cha…The San Francisco Fou…Vanguard Charitable E…Jpmorgan Chase Founda…National Philanthropi…
Northwest Connecticut Community Foundation IncCT15.6× affinity5 shared granteesties to 10 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Northwest Connecticut Community Foundation Inc · Berkshire Taconic Community Foundation Inc · The Bessemer Giving Fund · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · General Atlantic Foundation · Silicon Valley Community Foundation · The Ayco Charitable Foundation · The Goldman Sachs Charitable Gift Fund · The San Francisco Foundation · Vanguard Charitable Endowment Program · Jpmorgan Chase Foundation · National Philanthropic Trust

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 5 51 5 Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from The 5 51 5 Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 80%2%8%17%30%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 2%
  • Johns Hopkins University: 12% of income from government
  • The Trustees of Reservations: 2% of income from government
  • Jacob's Pillow Dance Festival Inc: 1% of income from government
no gov moneyreceives it· size = income
8get no government money at all
12report 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 5 51 5 Foundation Inc?

Find your warmest path to The 5 51 5 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 59 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 5 51 5’s 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