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Plinth

· Private foundation

Marvin and Sandra Fong Family Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$20k
Granted FY2025still arriving
2
Grants FY2025still arriving
1
States reached
$15k
Largest
01What you fund
01100% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20172025.

Health$108kAnimals$30kEducation$21kReligion$6kCommunity Improvement$5kCrime & Legal$3kYouth Development$2kPhilanthropy$2kOther$0
02FY2025 · 2 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2025

  • Under $10k1 grant · $5k
  • $10k–50k1 grant · $15k
$15,000
Median grant
1
States reached
$527k
Total assets
Largest grants
RecipientAmount
STRAUB FOUNDATION$15,000
A BETTER CHINATOWN ASSOCIATION$5,000
02The need
03

Do your dollars go where the need is?

Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.

show:

Dollar for dollar, your grants (FY17–25) land where the poverty rate runs at 9%, against an area that typically sits at 8%. 100% of your dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 8%CALIFORNIA WESTERN SCHOOL OF LAW: $3k → 11%PUNAHOU SCHOOL: $5k → 9%LYNCHBURG COLLEGE: $5k → 13%PUNAHOU SCHOOL: $5k → 9%HANAHAU'OLI SCHOOL: $1k → 9%HANAHAU'OLI SCHOOL: $1k → 9%HANAHAU'OLI SCHOOL: $1k → 9%UNIVERSITY OF HAWAII FOUNDATION: $1k → 9%HAWAII COUNCIL ON ECONOMIC EDUCATION: $2k → 9%AMERICAN CANCER SOCIETY: $20k → 9%AMERICAN CANCER SOCIETY: $10k → 9%RIVER OF LIFE MISSION: $5k → 9%KAIMUKI HIGH SCHOOL HOSPITALITY ACADEMY: $2k → 9%HUGS HAWAII: $2k → 9%HAWAIIAN HUMANE SOCIETY: $10k → 9%HAWAIIAN HUMANE SOCIETY: $10k → 9%HAWAIIAN HUMANE SOCIETY: $10k → 9%A BETTER CHINATOWN ASSOCIATION: $5k → 9%CENTRAL UNION CHURCH: $1k → 9%STRAUB FOUNDATION: $15k → 9%STRAUB FOUNDATION: $10k → 9%STRAUB FOUNDATION: $10k → 9%STRAUB FOUNDATION: $10k → 9%STRAUB FOUNDATION: $10k → 9%STRAUB FOUNDATION: $10k → 9%STRAUB FOUNDATION: $10k → 9%STRAUB FOUNDATION: $2k → 9%STRAUB FOUNDATION: $1k → 9%HAWAII PACIFIC UNIVERSITY: $500 → 9%GOVERNOR ARIYOSHI FOUNDATION: $500 → 9%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.

US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.

03Your edge
repeat funding

Who you back again

Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.

85%of every dollar goes to organizations you’ve funded before.
$151k · 5 repeat orgs$27k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +40% since the first grant, against +5% for the ones you funded once.

5 repeat relationships — 1 still active in FY2025, 4 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

5
11

Total granted

$151k
$22k

Median revenue growth · since first grant

+40%
+5%

Still filing today

100%
45%

New vs renewed · share of each year

In FY2025, 75% of grant dollars renewed an existing relationship; $5k 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
EducationHealthSocial ScienceAnimalsCommunity ImprovementOther

First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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

  • SF
    Straub Foundation
    9× · 2017–2025 · $78k · revenue +202%
  • HH
    HAWAIIAN HUMANE SOCIETY
    3× · 2022–2024 · $30k · revenue +28%
  • PS
    PUNAHOU SCHOOL
    2× · 2021–2022 · $10k · revenue +40%

Funded once

  • RO
    RIVER OF LIFE MISSION
    one grant, 2022 · $5k
  • UO
    UNIVERSITY OF LYNCHBURG
    one grant, 2017 · $5k · revenue +5%
  • CW
    CALIFORNIA WESTERN SCHOOL OF LAW
    one grant, 2021 · $3k · revenue -12%

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

04Your field

The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.

1
Hawaii Education Institute
2
Hawaii Association of Independent Schools

The hawai'i association of independent schools (hais) advocates on behalf of independent education in hawaii, provides services that strengthen individual schools and engages them to achieve educational quality and excellence for all…

Education
3
'Iolani School

To develop educated, well-rounded individuals who are well prepared for college.

Education
4
Hawaii Preparatory Academy

To provide exceptional learning opportunities in a diverse community honoring the traditions of hawaii. see schedule o.

Education
5
Kaua'i Medical Clinic

Kaua'i medical clinic, an affliate of hawai'i pacific health, is a multi-specialty clinic dedicated to providing world-class care for adults and children across hawai'i and the pacific region in partnership with kapi'olani medical center…

Health
6
Mohala Pua School Dba Honolulu Waldorf School

See schedule o.at honolulu waldorf school, we educate each child to find meaning, passion, and purpose in life and to contribute to the creation of a better world for all. through a curriculum based on the developmental stages of the human…

Education
7
Kula Aupuni Niihau a Kahelelani Aloha (Kanaka)

Preserve niihau cultural values and language.

Education
8
Kapi'olani Medical Specialists

Kapi'olani medical specialists (dba hawai'i pacific health medical group) is a multispecialty provider group dedicated to providing world-class care for adults and children across hawai'i and the pacific region working in partnership with…

Health
9
Hawaii Culinary Education Foundatio

The hawaii culinary education foundation's mission is to provide hawaiis culinary students and professional access to the best knowledge and exposure to cutting-edge techniques through a variety of programs and educational opportunities…

Education
10
Chaminade University of Honolulu

Chaminade university offers its students an education in a collaborative learning environment that prepares them for life, work and service. guided by its catholic, marianist and liberal arts educational traditions, chaminade encourages…

Education
11
Pacific University

A diverse and sustainable learning community dedicated to discovery and excellence in teaching, scholarship and practice, pacific university inspires students to think, care, create and pursue justice in our world.

Education
12
The University of Hawaii Alumni Association

To advance the interests of the university of hawaii, alumni, and friends through mutually beneficial and lifelong relationships, to generate support for the university, and to participate in events that showcase the university's…

For reference, the grantee most central to the portfolio’s shape is Hawaii Pacific University and the most unlike its peers is Governor Ariyoshi Foundation. 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

12 grantees tracked through their own filings, 2017–2025.

Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.

Counted here: distinct organizations you funded across 20172025, not grant rows in a single year — so this will not match the grant count on the cover. 12 of the 17 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.

0
Load-bearing (≥25% of a budget)
1
Early backer (in before they grew)
11/12
Grantees still filing
7/12
Grew since you first funded

Where your money sits — by cause, then by grantee

Straub Foundation — $78,000 · HealthStraub FoundationAMERICAN CANCER SOCIETY INC — $30,000 · HealthAMERICAN CANCER SOCIETY INCHAWAIIAN HUMANE SOCIETY — $30,000 · AnimalsHAWAIIAN HUMANE SOC…PUNAHOU SCHOOL — $10,000 · EducationPUNAHOU SCHO…UNIVERSITY OF LYNCHBURG — $5,000 · EducationUNIVERSITY O…CALIFORNIA WESTERN SCHOOL OF LAW — $2,500 · EducationCALIFORNIA W…UNIVERSITY OF HAWAII FOUNDATION — $1,000 · Education+2 more — $1,000 · EducationRIVER OF LIFE MISSION — $5,000 · OtherRIVER OF …HANAHAUOLI SCHOOL — $3,000 · OtherHANAHAUOL…KAIMUKI HIGH SCHOOL HOSPITALITY ACADEMY — $2,000 · OtherKAIMUKI H…Individual grant recipient — $2,000 · OtherIndividua…CENTRAL UNION CHURCH — $1,305 · OtherCENTRAL U…SALVATION ARMY — $1,000 · OtherSALVATION…A BETTER CHINATOWN ASSOCIATION — $5,000 · Community ImprovementHAWAII COUNCIL ON ECONOMIC EDUCATION — $1,500 · Social Science
Health$108,000Animals$30,000Education$19,500Other$14,305Community Improvement$5,000Social Science$1,500

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ your share of their budgetStraub Foundation — $78,000 over 9y, 1.0% of budgetAMERICAN CANCER SOCIETY INC — $30,000 over 2y, 0.0% of budgetHAWAIIAN HUMANE SOCIETY — $30,000 over 3y, 0.1% of budgetPUNAHOU SCHOOL — $10,000 over 2y, 0.0% of budgetA BETTER CHINATOWN ASSOCIATION — $5,000 over 1y, 1.1% of budgetUNIVERSITY OF LYNCHBURG — $5,000 over 1y, 0.0% of budgetHANAHAUOLI SCHOOL — $3,000 over 3y, 0.0% of budgetCALIFORNIA WESTERN SCHOOL OF LAW — $2,500 over 1y, 0.0% of budgetHAWAII COUNCIL ON ECONOMIC EDUCATION — $1,500 over 1y, 0.9% of budgetUNIVERSITY OF HAWAII FOUNDATION — $1,000 over 1y, 0.0% of budgetHAWAII PACIFIC UNIVERSITY — $500 over 1y, 0.0% of budgetGovernor Ariyoshi Foundation — $500 over 1y, 0.1% of budget
Go grantee by grantee — a decade per org, and how each moved after you funded them

A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.

The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.

J Watumull FundHI15.7× affinity5 shared granteesties to 7 of 7Hover any node to trace its alignments.Compare side by side →

Open a dossier: J Watumull Fund · Chung Kun Ai Foundation · Aloha United Way Inc · Vanguard Charitable Endowment Program · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation

Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.

Government reliance of your grantees

Every dot is one organization Marvin and Sandra Fong Family Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.

2025
202122232425
no gov · 00%0%1%3%5%your share of their income ↑0%5%10%15%20%share of the org’s income from government
    no gov moneyreceives it· size = income
    0get no government money at all
    3report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–20%
    typical government reliance, FY2025

    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 your grant caused the public funding. Coverage is precision-first — a floor, not 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 12–24 months.

    On method. Every financial figure here is read directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 17 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your 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. How we build these →

    Generated from your IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12–24 months behind; figures are dated accordingly.

    Source object · view filing

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