· Private foundation
Castiglione A Casauria Foundation
Its FY2025 filing reports that it accepted unsolicited grant applications.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k14 grants · $32k
- $10k–50k8 grants · $113k
- $50k–250k1 grant · $50k
| Recipient | Amount |
|---|---|
| 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 |
| Honolulu Symphony Foundation | $10,000 |
| Individual grant recipient | $10,000 |
| Straub Foundation | $10,000 |
| Belgian Sheepdog Rescue Trust | $5,000 |
| Young Life | $5,000 |
| Hawaii Kai Koa Foundation | $5,000 |
| Grassroot Institute of Hawaii | $2,500 |
| American Cancer Society | $2,000 |
| Vision to Learn | $2,000 |
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.
Your 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. Your grants skew toward lower-need ZIPs.
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.
Which US states your grants reach
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.
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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +46% since the first grant, against +0% for the ones you 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
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 80% of grant dollars renewed an existing relationship; $39k went to new ones.
Where new relationships form · theme of each grantee’s first grant
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
- HCHOLOMUA COLLECTIVE4× · 2022–2025 · $200k · revenue +332%
- PSPUNAHOU SCHOOL9× · 2017–2025 · $189k · revenue +34%
- KHKapi'olani Health Foundation7× · 2017–2025 · $144k · revenue +144%
Funded once
- RMRonald McDonald House Charitiesone grant, 2024 · $14k
- NLNavy Leagueone grant, 2024 · $10k
- IGIndividual grant recipientone grant, 2022 · $10k
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
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.
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…
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…
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.
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…
To improve the health and well-being of our community.
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…
To provide exceptional learning opportunities in a diverse community honoring the traditions of hawaii. see schedule o.
For reference, the grantee most central to the portfolio’s shape is Hospice Hawaii Inc and 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.
Your grantees are a median of 41 years old; the field is 16. You back the established end — and your money leans older still.
The field is 23% startups (under 5 years old) — 3% of your grantees by number, and just 17% of your money.
The orgs you fund almost never close — 2% lost their exemption, against 13% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
63 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 2017–2025, 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; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
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.
- 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 ASSOCIATION OF THE UNITED STATES ARMY ↗
- Who funds HAWAII FOODBANK INC ↗
- 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 THE QUEEN'S MEDICAL CENTER ↗
- Who funds GRASSROOT INSTITUTE OF HAWAII INC ↗
- Who funds TAX FOUNDATION OF HAWAII ↗
- Who funds HAWAIIAN HUMANE SOCIETY ↗
- Who funds HISTORIC HAWAI'I FOUNDATION ↗
- Who funds TRUSTEES OF BOSTON COLLEGE ↗
- Who funds HONOLULU SYMPHONY FOUNDATION INC ↗
- Who funds HONOLULU MUSEUM OF ART ↗
- Who funds WESTCHESTER ITALIAN CULTURAL CENTER ↗
- Who funds THE NORTH SHORE COMMUNITY LAND TRUST ↗
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.
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
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 Castiglione A Casauria 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.
- Trustees of Boston College — 3% of income from government
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.
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.