· Private foundation
Rossi Foundation
Its FY2024 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 FY2017–2023.
Where the money goes
Your grants by size, and where they go.
| Recipient | Amount |
|---|---|
| CENTRAL COAST STATE PARKS ASSOC | $1,000 |
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.
Dollar for dollar, your grants (FY17–23) land where the poverty rate runs at 11%, against an area that typically sits at 9%. 100% of your dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-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.
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 +22% since the first grant, against +7% for the ones you funded once.
4 repeat relationships — 1 still active in FY2023, 3 since wound down.
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 FY2023, 100% of grant dollars renewed an existing relationship; $0 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
- AAAmerican Aeronautical Foundation4× · 2017–2021 · $69k · revenue -90% · 25% of their budget
- THTRANSITIONSMENTAL HEALTH ASSOCIATION5× · 2017–2021 · $50k · revenue +68%
- CCCENTRAL COAST AQUARIUM2× · 2017–2021 · $20k · revenue +22%
Funded once
- PCPRADO CENTERone grant, 2022 · $40k
- AOARTS OBISPOone grant, 2017 · $15k
- MSMISSION SAN LUIS OBISPO DE TOLOSAone grant, 2018 · $15k
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.
Art matters: we enrich our community by using art as a doorway to deeper insight and connection.
The California Surf Museum serves as an international repository and resource center on the lifestyle sport of surfing through capturing,preserving and chronicling its art, culture and heritage for the education and enjoyment of current…
To serve as preservationist of past, present, and future aerospace and aeronautical artifacts, historical documents, and memorabilia of the santa maria valley and this nation.
Protect and preserve both san onofre and san clemente state beaches while educating the community.
Under contract with the State of California, Point Cabrillo Lightkeepers Association (PCLK) manages, interprets, and maintains the Point Cabrillo Light Station, a State Historic Park and site listed in the National Registry of Historic…
The mission of the California Ocean Alliance is to conduct world-class marine research which leads directly to sound policy decisions that safeguard the oceans and allow marine mammals to thrive into the next century.
The oceano depot provides a historical public reference point to the california railroad system. it's focus is through education and interactive railroad models and displays.
The organizations purpose is to produce the annual Coast Film and Music Festival, community screenings, and education programs that harness the power of film, music, and ideas to inspire a more thoughtful and engaged world.
To foster and cultivate the social and educational relations in the community of avila beach, california.
The purpose of the san luis obispo symphony is to support an outstanding community orchestra, to foster symphonic and chamber music education, and to contribute to the cultural and economic vitality of the central coast community.
The specific charitable purpose of this organization is to raise funds to supplement current public funding for san luis obispo county libraries.
The Chico Air Museum was founded to collect, preserve, document and display artifacts significant to the rich aviation and aerospace history of the Chico Army Air Field and the North Valley.
For reference, the grantee most central to the portfolio’s shape is Foundation for the Performing Arts Center and the most unlike its peers is Jordan & Kyra Memorial Foundation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
16 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. 16 of the 29 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 American Aeronautical Foundation ↗
- Who funds TRANSITIONSMENTAL HEALTH ASSOCIATION ↗
- Who funds CENTRAL COAST AQUARIUM ↗
- Who funds AVILA BEACH COMMUNITY FOUNDATION ↗
- Who funds ANTIQUE CATERPILLAR MACHINERY OWNERS CLUB ↗
- Who funds DREAM BIG DARLING ↗
- Who funds SAN LUIS OBISPO RAILROAD MUSEUM ↗
- Who funds FOUNDATION FOR THE PERFORMING ARTS CENTER ↗
- Who funds KCBX INC ↗
- Who funds Orchestra Novo Inc ↗
- Who funds Achon Uganda Childrens Fund ↗
- Who funds CENTRAL COAST STATE PARKS ASSOCIATION ↗
- Who funds UNITED WAY OF SLO COUNTY ↗
- Who funds HISTORY CENTER OF SAN LUIS OBISPO COUNTY ↗
- Who funds RETURN TO FREEDOM INC ↗
- Who funds Jordan & Kyra Memorial Foundation ↗
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: The Community Foundation San Luis Obispo · The Shanbrom Family Foundation · Schlinger Family Foundation · The Bank of America Charitable Foundation Inc · Network for Good · Vanguard Charitable Endowment Program · 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 Rossi 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.
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 Rossi Foundation?
Find your warmest path to Rossi 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.