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Rossi Foundation at a glanceMostly funded, not a grantmaker: see who funds it →

· Private foundation

Rossi Foundation

Its FY2024 filing reports that it accepted unsolicited grant applications.

$1k
Granted FY2023
1
Grants FY2023
1
States reached
$1k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2023.

Science & Tech$69kHealth$54kArts & Culture$54kHuman Services$40kPhilanthropy$23kEducation$20kReligion$15kPublic Benefit$9kOther$0
02FY2023 · 1 grant

Where the money goes

Grants by size, and the largest recipients.

$1,000
Median grant
1
States reached
$55k
Total assets
Largest grants
RecipientAmount
CENTRAL COAST STATE PARKS ASSOC$1,000
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:

Dollar for dollar, its grants (FY17–23) land where the poverty rate runs at 11%, against an area that typically sits at 9%. 100% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 9%AMERICAN AERONAUTICAL FOUNDATION: $24k → 10%AVILA BEACH COMMUNITY FOUNDATION: $15k → 12%PIONEER VALLEY HIGH SCHOOL: $1k → 14%ACHON UGANDA CHILDREN'S FUND: $3k → 12%ST JUDES CHILDREN'S HOSPITAL: $1k → 17%AFRICA FOUNDATION: $1k → 10%ANTIQUE CATERPILLAR MACHINERY OWNERS: $13k → 14%AMERICAN AERONAUTICAL FOUNDATION: $22k → 10%CENTRAL COAST AQUARIUM: $15k → 12%AMERICAN AERONAUTICAL FOUNDATION: $16k → 10%AVILA BEACH COMMUNITY FOUNDATION: $5k → 12%AMERICAN AERONAUTICAL FOUNDATION: $8k → 10%CENTRAL COAST AQUARIUM: $5k → 12%PRADO CENTER: $40k → 12%MISSION SAN LUIS OBISPO DE TOLOSA: $15k → 12%ARTS OBISPO: $15k → 12%TRANSITIONS-MENTAL HEALTH ASSOC: $10k → 12%TRANSITIONS-MENTAL HEALTH ASSOC: $10k → 12%TRANSITIONS-MENTAL HEALTH ASSOC: $10k → 12%TRANSITIONS-MENTAL HEALTH ASSOC: $10k → 12%TRANSITIONS MENTAL HEALTH ASSOCIATION: $10k → 12%HOMELESS FOUNDATION OF SAN LUIS OBISPO COUNTY: $5k → 12%SAN LUIS OBISPO RAILROAD MUSEUM: $5k → 12%KCBX: $5k → 12%FOUNDATION FOR THE PERFORMING ARTS CENTER: $5k → 12%FOUNDATION FOR THE PERFORMING ARTS: $5k → 12%HOSPICE SLO COUNTY: $3k → 12%UNITED WAY OF SAN LUIS OBISPO: $2k → 12%HISTORY CENTER OF SAN LUIS OBISPO: $2k → 12%CENTRAL COAST STATE PARKS ASSOC: $1k → 12%COMMUNITY FOUNDATION OF SLO: $1k → 12%CENTRAL COAST STATE PARKS ASSOC: $1k → 12%DREAM BIG DARLING: $9k → 12%ALZHEIMER'S ASSOCIATION: $1k → 12%CANCER SUPPORT COMMUNITY: $1k → 12%NHS ASB: $1k → 12%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.
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.

51%of every dollar goes to organizations it has funded before.
$141k · 4 repeat orgs$138k to everyone else

Grantees it renews have grown median revenue +22% since the first grant, against +7% for those funded once.

4 repeat relationships: 1 still active in FY2023, 3 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

4
24

Total granted

$141k
$138k

Median revenue growth · since first grant

+22%
+7%

Still filing today

100%
46%

New vs renewed · share of each year

In FY2023, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

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

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

’17’18’19’20’21’22’23
Arts & CulturePhilanthropyScience & TechEducationPublic BenefitInternationalOther
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

  • AA
    American Aeronautical Foundation
    4× · 2017–2021 · $69k · revenue -90% · 25% of their budget
  • TH
    TRANSITIONSMENTAL HEALTH ASSOCIATION
    5× · 2017–2021 · $50k · revenue +68%
  • CC
    CENTRAL COAST AQUARIUM
    2× · 2017–2021 · $20k · revenue +22%

Funded once

  • PC
    PRADO CENTER
    one grant, 2022 · $40k
  • AO
    ARTS OBISPO
    one grant, 2017 · $15k
  • MS
    MISSION SAN LUIS OBISPO DE TOLOSA
    one grant, 2018 · $15k
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
San Luis Obispo Museum of Art

Art matters: we enrich our community by using art as a doorway to deeper insight and connection.

Arts & Culture
2
California Surf Museum

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…

Arts & Culture
3
Santa Maria Museum of Flight Inc

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.

Arts & Culture
4
The San Onofre Foundation

Protect and preserve both san onofre and san clemente state beaches while educating the community.

Environment
5
Point Cabrillo Lightkeepers Association

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…

Arts & Culture
6
California Ocean Alliance

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.

Science & Tech
7
Oceano Depot Association

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.

Arts & Culture
8
Coast Film Foundation

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.

Arts & Culture
9
Avila Beach Civic Association

To foster and cultivate the social and educational relations in the community of avila beach, california.

—
10
San Luis Obispo Symphony Inc

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.

Arts & Culture
11
Foundation for San Luis Obispo County Public Libraries

The specific charitable purpose of this organization is to raise funds to supplement current public funding for san luis obispo county libraries.

Education
12
Chico Air Museum

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.

Arts & Culture
How this is measured
The grantee most central to the portfolio’s shape is Foundation for the Performing Arts Center; 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.
04the grantee network

16 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. 16 of the 29 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)
4
Early backer (in before they grew)
16/16
Grantees still filing
8/16
Grew since first funded

Where the money sits, by cause and then by grantee

TRANSITIONSMENTAL HEALTH ASSOCIATION: $50,000 · OtherTRANSITIONSMENTAL HEALTH ASSOCIATIONPRADO CENTER: $40,000 · OtherPRADO CENTERARTS OBISPO: $15,000 · OtherARTS OBISPOMISSION SAN LUIS OBISPO DE TOLOSA: $15,000 · OtherMISSION SAN LUIS OBISPO DE TOLOSA+13 more: $31,500 · Other+13 moreAmerican Aeronautical Foundation: $69,350 · Science & TechAmerican Aeronautical Foun…ANTIQUE CATERPILLAR MACHINERY OWNERS CLUB: $13,000 · Arts & CultureFOUNDATION FOR THE PERFORMING ARTS CENTER: $5,000 · Arts & CultureOrchestra Novo Inc: $3,000 · Arts & CultureCENTRAL COAST STATE PARKS ASSOCIATION: $2,000 · Arts & CultureAVILA BEACH COMMUNITY FOUNDATION: $20,000 · PhilanthropyUNITED WAY OF SLO COUNTY: $1,568 · PhilanthropyJordan & Kyra Memorial Foundation: $1,000 · PhilanthropyCENTRAL COAST AQUARIUM: $20,000 · EducationDREAM BIG DARLING: $9,450 · Public BenefitAchon Uganda Childrens Fund: $2,500 · InternationalRETURN TO FREEDOM INC: $1,000 · Animals
Other$151,500Science & Tech$69,350Arts & Culture$23,000Philanthropy$22,568Education$20,000Public Benefit$9,450International$2,500Animals$1,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10Mgrantee revenue →↑ funder's share of their budgetAmerican Aeronautical Foundation: $69,350 over 4y, 25% of budgetTRANSITIONSMENTAL HEALTH ASSOCIATION: $50,000 over 5y, 0.1% of budgetCENTRAL COAST AQUARIUM: $20,000 over 2y, 4.8% of budgetAVILA BEACH COMMUNITY FOUNDATION: $20,000 over 2y, 5.4% of budgetANTIQUE CATERPILLAR MACHINERY OWNERS CLUB: $13,000 over 1y, 4.4% of budgetDREAM BIG DARLING: $9,450 over 1y, 4.5% of budgetSAN LUIS OBISPO RAILROAD MUSEUM: $5,000 over 1y, 5.1% of budgetFOUNDATION FOR THE PERFORMING ARTS CENTER: $5,000 over 1y, 0.8% of budgetKCBX INC: $5,000 over 1y, 0.3% of budgetOrchestra Novo Inc: $3,000 over 1y, 4.5% of budgetCENTRAL COAST STATE PARKS ASSOCIATION: $2,000 over 2y, 0.2% of budgetUNITED WAY OF SLO COUNTY: $1,568 over 1y, 0.1% of budgetHISTORY CENTER OF SAN LUIS OBISPO COUNTY: $1,500 over 1y, 0.7% of budgetRETURN TO FREEDOM INC: $1,000 over 1y, 0.1% of budgetJordan & Kyra Memorial Foundation: $1,000 over 1y, 0.4% 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 Community Foundat…The Shanbrom Family F…Schlinger Family Foun…The Bank of America C…Network for GoodVanguard Charitable E…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
The Community Foundation San Luis ObispoCA21.9× affinity8 shared granteesties to 8 of 8Hover any node to trace its alignments.Compare side by side →

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

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

2023
’20’21’22’23’24’25
no gov · 20%1%5%11%20%funder's share of their income ↑0%1%3%4%5%share of the org’s income from government →
    no gov moneyreceives it· size = income
    2get no government money at all
    5report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–5%
    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 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.

    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 29 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 2023, released 2023. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Possibly out of date. A more recent filing (FY2024) is on record but names no grant recipient in the published copy, so the figures above are from FY2023, the most recent year this funder’s grantee list reached the public record.

    Source object · view filing

    Play a game based on Rossi’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