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Castiglione A Casauria Foundation at a glance

· Private foundation

Castiglione A Casauria Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$195k
Granted FY2025still arriving
23
Grants FY2025still arriving
4
States reached
$50k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0192% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Education$320kHealth$289kPublic Benefit$277kArts & Culture$178kPhilanthropy$90kHuman Services$70kYouth Development$48kCommunity Improvement$38kOther$0
02FY2025 · 23 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k14 grants · $32k
  • $10k–50k8 grants · $113k
  • $50k–250k1 grant · $50k
$5,000
Median grant
4
States reached
$2.8M
Total assets
Largest grants
RecipientAmount
Holomua Collective$50,000
Punahou School$25,000
Kapiolani Health Foundation$20,000
University of San Diego$15,000
Partners in Development$12,000
Rehab Foundation$11,000
Straub Foundation$10,000
Individual grant recipient$10,000
Honolulu Symphony Foundation$10,000
Hawaii Kai Koa Foundation$5,000
Belgian Sheepdog Rescue Trust$5,000
Young Life$5,000
Grassroot Institute of Hawaii$2,500
American Cancer Society$2,000
Vision to Learn$2,000
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 (FY17–20, $26k) land where the poverty rate runs at 9%, against an area that typically sits at 10%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 10%Lanakila Pacific: $10k → 9%Lanikila Pacific: $4k → 9%Lanakila Pacific: $4k → 9%Hospice Hawaii: $1k → 9%Hospice Hawaii: $1k → 9%Hospice Hawaii: $500 → 9%Palolo Chinese Home: $1k → 9%Palolo Chinese Home: $1k → 9%After-School All Stars Hawaii: $500 → 9%Palolo Chinese Home: $500 → 9%YMCA of Honolulu: $1k → 9%YMCA of Honolulu: $1k → 9%YMCA of Honolulu: $250 → 9%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

NY
MA
CA
CO
VA
MD
NC
HI
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.

91%of every dollar goes to organizations it has funded before.
$1.4M · 62 repeat orgs$133k to everyone else

Grantees it renews have grown median revenue +46% since the first grant, against +0% for those funded once.

62 repeat relationships: 16 still active in FY2025, 46 since wound down; 7 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

62
24

Total granted

$1.4M
$94k

Median revenue growth · since first grant

+46%
+0%

Still filing today

68%
46%

New vs renewed · share of each year

In FY2025, 80% of grant dollars renewed an existing relationship; $39k 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
HealthArts & CultureEducationHuman ServicesPublic BenefitPhilanthropyOther
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

  • HC
    HOLOMUA COLLECTIVE
    4× · 2022–2025 · $200k · revenue +332%
  • PS
    PUNAHOU SCHOOL
    9× · 2017–2025 · $189k · revenue +34%
  • KH
    Kapi'olani Health Foundation
    7× · 2017–2025 · $144k · revenue +144%

Funded once

  • RM
    Ronald McDonald House Charities
    one grant, 2024 · $14k
  • IG
    Individual grant recipient
    one grant, 2022 · $10k
  • NL
    Navy League
    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
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
2
Hawaii - American Nurses Association Foundation
Environment
3
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
4
Hawaii State Teachers Association

Served hsta members as their exclusive collective bargaining agent,administered members' contract negotiations with the state of hawaiiconcerning grievances, labor disputes, wages, fringe benefits, hoursand other employment conditions.

—
5
E Kupaku Ka Aina - the Hawaii Land Restoration Institute
Environment
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
Ho'ola Lahui Hawaii

To improve the health and well-being of our community.

Human Services
8
Hawaii Book and Music Festival
Arts & Culture
9
Hawaii Education Institute
—
10
Hawaii Maritime Center
—
11
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
12
Hawaii Preparatory Academy

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

Education
How this is measured
The grantee most central to the portfolio’s shape is Hospice Hawaii Inc; the most unlike its peers is Kidz for a Cause. 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

63 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. 63 of the 94 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)
14
Early backer (in before they grew)
60/63
Grantees still filing
44/63
Grew since first funded

Where the money sits, by cause and then by grantee

Individual grant recipient: $60,000 · OtherIndividual grant recipientHANAHAUOLI SCHOOL: $43,250 · OtherHANAHAUOLI SCHOOLPartners in Development: $37,000 · OtherPartners in DevelopmentHonolulu Council Navy League of the: $22,500 · OtherLaulima Giving Program: $22,500 · OtherBelgian Sheepdog Rescue Trust: $19,000 · OtherIndividual grant recipient: $18,000 · OtherHAWAII FOODBANK INC: $30,000 · OtherHAWAII FOODBANK INC+44 more: $261,750 · Other+44 moreKapi'olani Health Foundation: $144,000 · HealthKapi'olani Health …Straub Foundation: $57,000 · HealthStraub FoundationRehabilitation Hospital of the Pacific Foundation: $26,000 · HealthRehabilitation Hos…THE QUEEN'S MEDICAL CENTER: $14,000 · HealthTHE QUEEN'S MEDICA…+6 more: $13,265 · HealthPUNAHOU SCHOOL: $189,000 · EducationPUNAHOU SCHOOLUNIVERSITY OF HAWAII FOUNDATION: $25,000 · EducationUNIVERSITY OF HAWA…TRUSTEES OF BOSTON COLLEGE: $11,500 · Education+6 more: $26,900 · Education+6 moreHOLOMUA COLLECTIVE: $200,000 · Public BenefitHOLOMUA COLLECTIV…ASSOCIATION OF THE UNITED STATES ARMY: $30,000 · Public BenefitASSOCIATION OF TH…GRASSROOT INSTITUTE OF HAWAII INC: $14,000 · Public BenefitGRASSROOT INSTITU…PEARL HARBOR AVIATION MUSEUM: $84,000 · Arts & CulturePEARL HARBO…HAWAII SYMPHONY ORCHESTRA: $27,000 · Arts & CultureHAWAII SYMP…HISTORIC HAWAI'I FOUNDATION: $11,750 · Arts & CultureHISTORIC HA…HONOLULU MUSEUM OF ART: $10,000 · Arts & CultureHONOLULU MU…WASHINGTON PLACE FOUNDATION: $9,000 · Arts & CultureWASHINGTON …HAWAII YOUTH SYMPHONY ASSOCIATION: $7,000 · Arts & Culture+4 more: $11,000 · Arts & Culture+4 moreHAWAII COMMUNITY FOUNDATION: $50,000 · PhilanthropyTHE GIFT FOUNDATION OF HAWAII: $15,935 · PhilanthropyHONOLULU SYMPHONY FOUNDATION INC: $10,000 · PhilanthropyKIDZ FOR A CAUSE: $5,000 · PhilanthropyHO'OLA NA PUA: $40,000 · Human ServicesLANAKILA PACIFIC: $18,000 · Human ServicesPALOLO CHINESE HOME: $2,500 · Human ServicesHOSPICE HAWAII INC: $2,500 · Human ServicesYOUNG MEN'S CHRISTIAN ASSOCIATION OF HONOLULU: $2,250 · Human Services+1 more: $500 · Human Services
Other$514,000Health$254,265Education$252,400Public Benefit$244,000Arts & Culture$159,750Philanthropy$80,935Human Services$65,750

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 budgetHOLOMUA COLLECTIVE: $200,000 over 4y, 13% of budgetPUNAHOU SCHOOL: $189,000 over 9y, 0.0% of budgetKapi'olani Health Foundation: $144,000 over 7y, 0.3% of budgetPEARL HARBOR AVIATION MUSEUM: $84,000 over 5y, 0.3% of budgetStraub Foundation: $57,000 over 8y, 0.5% of budgetHAWAII COMMUNITY FOUNDATION: $50,000 over 1y, 0.0% of budgetHANAHAUOLI SCHOOL: $43,250 over 5y, 0.2% of budgetHO'OLA NA PUA: $40,000 over 3y, 0.5% of budgetHAWAII FOODBANK INC: $30,000 over 4y, 0.1% of budgetASSOCIATION OF THE UNITED STATES ARMY: $30,000 over 3y, 0.0% of budgetHAWAII SYMPHONY ORCHESTRA: $27,000 over 5y, 0.2% of budgetRehabilitation Hospital of the Pacific Foundation: $26,000 over 7y, 0.5% of budgetUNIVERSITY OF HAWAII FOUNDATION: $25,000 over 2y, 0.0% of budgetLANAKILA PACIFIC: $18,000 over 3y, 0.1% of budgetTHE GIFT FOUNDATION OF HAWAII: $15,935 over 2y, 4.5% of budgetUNIVERSITY OF SAN DIEGO: $15,000 over 1y, 0.0% of budgetST ANDREW'S SCHOOLS: $14,200 over 7y, 0.1% of budgetGRASSROOT INSTITUTE OF HAWAII INC: $14,000 over 7y, 0.2% of budgetTAX FOUNDATION OF HAWAII: $14,000 over 8y, 1.9% of budgetTHE QUEEN'S MEDICAL CENTER: $14,000 over 4y, 0.0% of budgetHAWAIIAN HUMANE SOCIETY: $13,500 over 6y, 0.0% of budgetHISTORIC HAWAI'I FOUNDATION: $11,750 over 7y, 0.2% of budgetTRUSTEES OF BOSTON COLLEGE: $11,500 over 7y, 0.0% of budgetHONOLULU MUSEUM OF ART: $10,000 over 1y, 0.1% of budgetHONOLULU SYMPHONY FOUNDATION INC: $10,000 over 1y, 0.7% of budgetWESTCHESTER ITALIAN CULTURAL CENTER: $9,750 over 3y, 1.6% of budgetTHE NORTH SHORE COMMUNITY LAND TRUST: $9,500 over 4y, 1.1% of budgetWASHINGTON PLACE FOUNDATION: $9,000 over 3y, 19% of budgetBOY SCOUTS OF AMERICA-ALOHA COUNCIL #104: $9,000 over 5y, 0.1% of budgetBoys to Men Mentoring Network Inc: $7,500 over 2y, 0.3% of budget'IOLANI SCHOOL: $7,500 over 3y, 0.0% of budgetHAWAII YOUTH SYMPHONY ASSOCIATION: $7,000 over 4y, 0.2% of budgetPALAMA SETTLEMENT: $6,000 over 3y, 0.2% of budgetMEDECINS SANS FRONTIERES USA INC: $6,000 over 3y, 0.0% of budgetCHAMINADE UNIVERSITY OF HONOLULU: $6,000 over 4y, 0.0% of budgetINTERSCHOLASTIC LEAGUE OF HONOLULU: $5,000 over 1y, 0.3% of budgetYOUNG LIFE: $5,000 over 1y, 0.0% of budgetKIDZ FOR A CAUSE: $5,000 over 1y, 3.8% of budgetHAWAII JUSTICE FOUNDATION: $5,000 over 3y, 0.2% of budgetHAWAII PACIFIC UNIVERSITY: $4,900 over 1y, 0.0% of budgetHAWAII OPERA THEATRE: $3,500 over 1y, 0.1% of budgetAMERICAN CANCER SOCIETY INC: $3,000 over 2y, 0.0% of budgetHAWAII PUBLIC TELEVISION FOUNDATION DBA PBS HAWAII: $3,000 over 3y, 0.0% of budgetTeach for America Inc: $3,000 over 3y, 0.0% of budgetALOHA MEDICAL MISSION: $3,000 over 3y, 0.2% of budgetSUSTAINABLE COASTLINES HAWAI'I: $3,000 over 2y, 0.4% of budgetPALOLO CHINESE HOME: $2,500 over 3y, 0.0% of budgetMAKE-A-WISH FOUNDATION OF HAWAII: $2,500 over 3y, 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.

  • Who funds HOLOMUA COLLECTIVE ↗
  • Who funds PUNAHOU SCHOOL ↗
  • Who funds Kapi'olani Health Foundation ↗
  • Who funds PEARL HARBOR AVIATION MUSEUM ↗
  • Who funds Straub Foundation ↗
  • Who funds HAWAII COMMUNITY FOUNDATION ↗
  • Who funds HANAHAUOLI SCHOOL ↗
  • Who funds HO'OLA NA PUA ↗
  • Who funds HAWAII FOODBANK INC ↗
  • Who funds ASSOCIATION OF THE UNITED STATES ARMY ↗
  • Who funds HAWAII SYMPHONY ORCHESTRA ↗
  • Who funds Rehabilitation Hospital of the Pacific Foundation ↗
  • Who funds UNIVERSITY OF HAWAII FOUNDATION ↗
  • Who funds LANAKILA PACIFIC ↗
  • Who funds THE GIFT FOUNDATION OF HAWAII ↗
  • Who funds UNIVERSITY OF SAN DIEGO ↗
  • Who funds ST ANDREW'S SCHOOLS ↗
  • Who funds GRASSROOT INSTITUTE OF HAWAII INC ↗
  • Who funds TAX FOUNDATION OF HAWAII ↗
  • Who funds THE QUEEN'S MEDICAL CENTER ↗
  • Who funds HAWAIIAN HUMANE SOCIETY ↗
  • Who funds HISTORIC HAWAI'I FOUNDATION ↗
  • Who funds TRUSTEES OF BOSTON COLLEGE ↗
  • Who funds HONOLULU MUSEUM OF ART ↗
  • Who funds HONOLULU SYMPHONY FOUNDATION INC ↗
  • Who funds WESTCHESTER ITALIAN CULTURAL CENTER ↗
  • Who funds THE NORTH SHORE COMMUNITY LAND TRUST ↗

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.

J Watumull FundAloha United Way IncAtherton Family Found…Tradewind Group Found…First Insurance Compa…Bank of Hawaii Charit…First Hawaiian Bank F…McInerny Foundation--Central Pacific Bank …Kosasa FoundationThe Queen's Medical C…The Harry and Jeanett…
J Watumull FundHI67.4× affinity30 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: J Watumull Fund · Aloha United Way Inc · Atherton Family Foundation · Tradewind Group Foundation · First Insurance Company of Hawaii Charitable Foundation · Bank of Hawaii Charitable Fdn · First Hawaiian Bank Foundation · McInerny Foundation-- · Central Pacific Bank Foundation · Kosasa Foundation · The Queen's Medical Center · The Harry and Jeanette Weinberg Foundation Inc

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

2024
’20’21’22’23’24’25
no gov · 00%1%4%8%15%funder's share of their income ↑0%13%25%38%50%share of the org’s income from government →median 3%
  • Trustees of Boston College: 3% of income from government
no gov moneyreceives it· size = income
0get no government money at all
7report 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 Castiglione A Casauria Foundation?

Find your warmest path to Castiglione A Casauria 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 94 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 Castiglione A Casauria’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