Skip to content
Tweddle Foundation at a glance

· Private foundation

Tweddle Foundation

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$290k
Granted FY2024still arriving
9
Grants FY2024still arriving
5
States reached
$200k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0191% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Health$573kReligion$394kInternational$321kScience & Tech$154kEducation$109kAnimals$100kPublic Benefit$100kHuman Services$51kOther$0
02FY2024 · 9 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k6 grants · $13k
  • $10k–50k1 grant · $27k
  • $50k–250k2 grants · $250k
$3,500
Median grant
5
States reached
$9.8M
Total assets
Largest grants
RecipientAmount
Individual grant recipient$200,000
BADJAO BRIDGE$50,000
ALL HANDS AND HEARTS SMART RESPONSE$27,171
ANGELS FOR HUMANITY$5,000
LANSING MARINE TOYS FOR TOTS FOUNDATION$3,500
KIDS OF LOVE FOUNDATION INC$2,000
THE CHINESE ASSOCIATION OF SCIENCE EDUCATION$1,000
OCCIDENTAL COLLEGE$1,000
CARE USA FOUNDATION INC$360
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 (FY22–24, $39k) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%ANGELS FOR HUMANITY: $17k → 11%ANGELS FOR HUMANITY: $15k → 11%ANGELS FOR HUMANITY: $5k → 11%ARI ARTEAGA FOUNDATION: $3k → 15%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

MI
NY
CA
VA
MD
AR
DC
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.

84%of every dollar goes to organizations it has funded before.
$2.0M · 22 repeat orgs$384k to everyone else

Grantees it renews have grown median revenue +30% since the first grant, against +19% for those funded once.

22 repeat relationships: 7 still active in FY2024, 15 since wound down; 2 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

22
23

Total granted

$2.0M
$355k

Median revenue growth · since first grant

+30%
+19%

Still filing today

64%
70%

New vs renewed · share of each year

In FY2024, 90% of grant dollars renewed an existing relationship; $29k went to new ones.

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

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

’17’18’19’20’21’22’23’24
HealthEducationPhilanthropyHuman ServicesYouth DevelopmentAnimalsOther
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

  • MF
    MAKE-A-WISH FOUNDATION OF SOUTHERN FLORIDA INC
    5× · 2019–2023 · $200k · revenue +72%
  • The Madeira School
    4× · 2018–2021 · $65k · revenue +206%
  • BH
    Baptist Health South Florida Foundation Inc
    6× · 2017–2022 · $60k · revenue +149%

Funded once

  • TG
    THE GEORGE AND BARBARA BUSH FOUNDATIONgraduated
    one grant, 2017 · $100k · revenue +44%
  • SS
    SEA SHEPHERD CONSERVATION SOCIETYgraduated
    one grant, 2017 · $100k · revenue +128%
  • TS
    The Susan G Komen Breast Cancer Foundation Inc
    one grant, 2022 · $25k · revenue -7%
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
The Susan G Komen Breast Cancer Fdn Group

Susan g. komen 's mission is to save lives by meeting the most critical needs in our communities & investing in breakthrough research to prevent & cure breast cancer.

—
2
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
3
Mila's Miracle Foundation

The mission of mila's miracle foundation is to find and fund paths to a cure for batten and other life-threatening neurological disorders. families in this community have been pivotal in raising the necessary funds and awareness. together,…

Health
4
Dana-Farber Cancer Institute Inc

The mission of dfci is to provide expert, compassionate, and equitable care to children, adults, and their families, while advancing the understanding, diagnosis, treatment, cure, and prevention of cancer and related diseases. we train new…

Health
5
University of Miami

See Form 990, Part I, Line 1, Description of Organization Mission.

Education
6
Miami Children's Health System Inc

Nicklaus Children's Health System is the region's only healthcare system exclusively for children. Our mission is to inspire hope and promote lifelong health by providing the best care to every child. TO PERFORM THE FUNCTIONS OF, OR TO…

Health
7
Children's Health Care

We champion the health needs of children and families. we are committed to improving children's health by providing the highest-quality, family centered care, advanced through research and education.

Health
8
Blue World Foundation Inc

To stabilize the population of marine species in danger, especially sharks and rays in the caribbean of guatemala; through science and community strengthening which will provide the creation of alternative livelihoods, which eventually…

Environment
9
Variety Children's Hospital

To inspire hope and promote lifelong health by providing the best care to every child.

Health
10
Target Als Foundation Inc

Our mission is to break down barriers to als research to find effective treatments. by uniting academia, the pharma and biotech industry, government, venture capital, related nonprofits, and the als community, we aim to overcome the…

Education
11
Memorial Sloan-Kettering Cancer Center

Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.

Health
12
The Foundation for Aids Research

Amfar is dedicated to ending the global aids epidemic through innovative research. (see schedule o)

Health
How this is measured
The grantee most central to the portfolio’s shape is Make-a-Wish Foundation of Southern Florida Inc; the most unlike its peers is The 5 Gyres Institute. 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

32 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. 32 of the 47 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)
5
Early backer (in before they grew)
30/32
Grantees still filing
21/32
Grew since first funded

Where the money sits, by cause and then by grantee

Individual grant recipient: $400,000 · OtherIndividual grant recipientST CHRISTOPHER'S BY-THE-SEA: $383,820 · OtherST CHRISTOPHER'S BY-THE-SEABADJAO BRIDGE: $265,000 · OtherBADJAO BRIDGETHE LAB SCHOOL: $151,967 · OtherTHE LAB SCHOOLIndividual grant recipient: $72,000 · Other+17 more: $147,651 · Other+17 moreELTON JOHN AIDS FOUNDATION INC: $243,500 · HealthELTON JOHN AIDS FOUNDATION…MAKE-A-WISH FOUNDATION OF SOUTHERN FLORIDA INC: $200,000 · HealthMAKE-A-WISH FOUNDATION OF …Baptist Health South Florida Foundation Inc: $60,000 · HealthBaptist Health South Flori…The Susan G Komen Breast Cancer Foundation Inc: $25,000 · HealthCYSTIC FIBROSIS FOUNDATION: $20,000 · Health+5 more: $14,000 · HealthTHE GEORGE AND BARBARA BUSH FOUNDATION: $100,000 · EducationTHE GEORG…The Madeira School: $65,000 · EducationThe Madei…FISHER ISLAND DAY SCHOOL INC: $10,700 · EducationFISHER IS…WIKIMEDIA FOUNDATION INC: $10,000 · EducationGULLIVER PREPARATORY SCHOOL INC: $7,500 · Education+2 more: $4,100 · EducationSEA SHEPHERD CONSERVATION SOCIETY: $100,000 · AnimalsANGELS FOR HUMANITY: $36,900 · Human ServicesARI J ARTEAGA FOUNDATION INC: $2,500 · Human ServicesTHE LITTLE LIGHTHOUSE FOUNDATION INC: $15,000 · Youth DevelopmentWOMEN OF TOMORROW MENTOR AND SCHOLARSHIP PROGRAM INC: $14,000 · Youth DevelopmentGABRIELLE'S ANGEL FOUNDATION FOR CANCER RESEARCH INC: $12,000 · PhilanthropyMARINE TOYS FOR TOTS FOUNDATION: $9,500 · PhilanthropyAyudame A Vivir Foundation Inc: $2,000 · Philanthropy
Other$1,420,438Health$562,500Education$197,300Animals$100,000Human Services$39,400Youth Development$29,000Philanthropy$23,500

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 budgetBADJAO BRIDGE: $265,000 over 4y, 51% of budgetELTON JOHN AIDS FOUNDATION INC: $243,500 over 2y, 0.7% of budgetMAKE-A-WISH FOUNDATION OF SOUTHERN FLORIDA INC: $200,000 over 5y, 0.4% of budgetSEA SHEPHERD CONSERVATION SOCIETY: $100,000 over 1y, 1.5% of budgetThe Madeira School: $65,000 over 4y, 0.1% of budgetBaptist Health South Florida Foundation Inc: $60,000 over 6y, 0.0% of budgetANGELS FOR HUMANITY: $36,900 over 3y, 4.1% of budgetThe Susan G Komen Breast Cancer Foundation Inc: $25,000 over 1y, 0.0% of budgetCYSTIC FIBROSIS FOUNDATION: $20,000 over 1y, 0.0% of budgetTHE LITTLE LIGHTHOUSE FOUNDATION INC: $15,000 over 1y, 2.9% of budgetWOMEN OF TOMORROW MENTOR AND SCHOLARSHIP PROGRAM INC: $14,000 over 3y, 0.5% of budgetGABRIELLE'S ANGEL FOUNDATION FOR CANCER RESEARCH INC: $12,000 over 3y, 0.3% of budgetFISHER ISLAND DAY SCHOOL INC: $10,700 over 2y, 0.2% of budgetCASA RUBY INC: $10,000 over 1y, 0.2% of budgetFAENA ARTS INC: $10,000 over 2y, 0.4% of budgetYACHTAID GLOBAL: $10,000 over 1y, 2.6% of budgetWIKIMEDIA FOUNDATION INC: $10,000 over 1y, 0.0% of budgetMARINE TOYS FOR TOTS FOUNDATION: $9,500 over 2y, 0.0% of budgetGULLIVER PREPARATORY SCHOOL INC: $7,500 over 1y, 0.0% of budgetMALAYKA INTERNATIONAL: $6,000 over 4y, 0.7% of budgetSOUTH FLORIDA PUBLIC MEDIA GROUP INC: $5,000 over 1y, 0.0% of budgetXAVIER DEGROAT AUTISM FOUNDATION: $5,000 over 1y, 3.0% of budgetThe 5 Gyres Institute: $5,000 over 1y, 0.5% of budgetOCCIDENTAL COLLEGE: $3,000 over 2y, 0.0% of budgetARI J ARTEAGA FOUNDATION INC: $2,500 over 1y, 1.0% of budgetAyudame A Vivir Foundation Inc: $2,000 over 2y, 0.8% of budgetCHILDREN'S BEREAVEMENT CENTER INC: $1,100 over 1y, 0.1% of budgetBLOOD CANCER UNITED INC: $1,000 over 1y, 0.0% of budgetCLINTON-GRATIOT HABITAT FOR HUMANITY: $300 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.

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.

The Miami Foundation …Regan P Remillard Fou…Mightycause Charitabl…United Way Miami IncNational Philanthropi…Paypal Charitable Giv…American Endowment Fo…The Bank of America C…Vanguard Charitable E…American Online Givin…Donor Advised Charita…Fidelity Investments …
The Miami Foundation IncFL19.9× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Miami Foundation Inc · Regan P Remillard Foundation · Mightycause Charitable Foundation · United Way Miami Inc · National Philanthropic Trust · Paypal Charitable Giving Fund · American Endowment Foundation · The Bank of America Charitable Foundation Inc · Vanguard Charitable Endowment Program · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund

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

2024
’20’21’22’23’24’25
no gov · 100%4%15%34%60%funder's share of their income ↑0%3%5%8%10%share of the org’s income from government →median 0%
  • Gulliver Preparatory School Inc: 0% of income from government
no gov moneyreceives it· size = income
10get no government money at all
2report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–10%
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 Tweddle Foundation?

Find your warmest path to Tweddle Foundation 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 47 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 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on Tweddle’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