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California · Private foundation

Rosso Family Foundation

Its FY2026 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$1.1M
Granted FY2026(still arriving)
23
Grants FY2026
24
Organizations funded FY2025
21%
First-time grantees FY2025
Read the full brief
Median grant, FY2026
$15,000
Largest grant, FY2026
$275,000
Organizations funded a year
24 to 31
FY2018 to FY2025
States reached, FY2026
5
Total assets, FY2026
$2.9M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2025, 21% of the organizations Rosso Family Foundation funded were first-time grantees, receiving 1% of its grant dollars.

New vs renewed · share of each year

In FY2025, 99% of grant dollars renewed an existing relationship; $6k went to new ones.

50%100%’18’19’21’22’23’24’25
RenewedFirst-time

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

’18’19’21’22’23’24’25
HealthEducationArts & CultureHuman ServicesFood & NutritionAnimalsOther
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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2026still arriving22$1.0M36%
FY202524$811k21%
FY202427$734k15%
FY202326$653k31%
FY202225$694k40%
FY202124$645k58%
FY201931$454k35%
FY201828$494k25%
94% classified

What it funded, over time

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

Arts & Culture$2.2MEnvironment$666kEducation$662kAnimals$627kHuman Services$373kRecreation & Sports$205kYouth Development$174kHealth$114kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

ID
IL
CA
VA
MD
TN
NC
SC
DC

Top grantees

Largest recipients by total granted, FY2017 to FY2026, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
The San Diego Symphony Orchestra Association$1,745,00091%
The New Childrens Museum$585,35095%
Bishop School$509,5096n/a
Scripps Health$356,00040%
Living Desert The$265,00061%
Zoological Society of San Diego$249,30040%
Nice Guys$167,6408n/a
Santa Fe Christian Schools$127,60160%
Museum of Contemporary Art San Diego$97,50032%
La Jolla Country Day School$93,00030%
Show all 47 grantees
All grantees of Rosso Family Foundation by total granted
GranteeTotal grantedYearsShare of their budget
The San Diego Symphony Orchestra Association$1,745,00091%
The New Childrens Museum$585,35095%
Bishop School$509,5096n/a
Scripps Health$356,00040%
Living Desert The$265,00061%
Zoological Society of San Diego$249,30040%
Nice Guys$167,6408n/a
Santa Fe Christian Schools$127,60160%
Museum of Contemporary Art San Diego$97,50032%
La Jolla Country Day School$93,00030%
Casa De Amparo$46,17770%
Maranatha Christian Schools$35,5426n/a
The Salvation Army$23,8405n/a
Cap Giving Inc$20,0003n/a
The Museum of Contemporary Art Los Angeles$20,0001n/a
University of San Diego$10,00010%
Diegueno Esteem Foundation Inc$6,500214%
Social Advocates for Youth San Diego Inc$5,69530%
Solana Santa Fe Parent Teacher Organization$5,00013%
Wounded Warrior Project Inc$3,50040%
Hope Academy$3,0001n/a
Rancho Santa Fe California Little League$3,00021%
Pancreatic Cancer Action Network Inc$2,80020%
Share Our Selves Corporation$2,50030%
Make-A-Wish Foundation of America$2,50050%
St Jude Children's Research Hospital Inc$2,50050%
Project Hope Foundation Inc$2,00010%
Neurolab 360$2,00010%
Make-A-Wish Foundation of San Diego$1,50030%
Gary Sinise Foundation$1,50030%
Feeding San Diego$1,50030%
Lodi Community Foundation Inc$1,0001n/a
University of California Irvine Foundation$1,00010%
Concordia University Irvine$1,00010%
Miracle Babies$1,00010%
Idaho Public Television$1,0001n/a
San Diego Museum of Art$1,00010%
National Multiple Sclerosis Society$80020%
St Jude Memorial Foundation$7001n/a
Joni and Friends$50010%
Voices of Our City Choir Inc$50010%
Jacobs & Cushman San Diego Food Bank$50010%
Rancho Penasquitos Little League$50010%
YMCA of San Diego County$50010%
American National Red Cross & Its Constituent Chapters and Branches$50010%
Friends of the Fullerton Arboretum$27010%
Lucky Duck Foundation$10210%

What it could do for these grantees

Plus 56 recipients with no EIN on record ($1.7M), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Rosso Family Foundation supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetThe San Diego Symphony Orchestra Association: $1,745,000 over 9y, 0.7% of budgetThe New Childrens Museum: $585,350 over 9y, 5.1% of budgetScripps Health: $356,000 over 4y, 0.0% of budgetLiving Desert The: $265,000 over 6y, 0.7% of budgetZoological Society of San Diego: $249,300 over 4y, 0.0% of budgetSanta Fe Christian Schools: $127,601 over 6y, 0.2% of budgetMuseum of Contemporary Art San Diego: $97,500 over 3y, 1.5% of budgetLa Jolla Country Day School: $93,000 over 3y, 0.1% of budgetCasa De Amparo: $46,177 over 7y, 0.2% of budgetUniversity of San Diego: $10,000 over 1y, 0.0% of budgetDiegueno Esteem Foundation Inc: $6,500 over 2y, 14% of budgetSocial Advocates for Youth San Diego Inc: $5,695 over 3y, 0.0% of budgetSolana Santa Fe Parent Teacher Organization: $5,000 over 1y, 2.5% of budgetWounded Warrior Project Inc: $3,500 over 4y, 0.0% of budgetRancho Santa Fe California Little League: $3,000 over 2y, 1.0% of budgetPancreatic Cancer Action Network Inc: $2,800 over 2y, 0.0% of budgetShare Our Selves Corporation: $2,500 over 3y, 0.0% of budgetMake-A-Wish Foundation of America: $2,500 over 5y, 0.0% of budgetSt Jude Children's Research Hospital Inc: $2,500 over 5y, 0.0% of budgetProject Hope Foundation Inc: $2,000 over 1y, 0.0% of budgetNeurolab 360: $2,000 over 1y, 0.1% of budgetMake-A-Wish Foundation of San Diego: $1,500 over 3y, 0.0% of budgetGary Sinise Foundation: $1,500 over 3y, 0.0% of budgetFeeding San Diego: $1,500 over 3y, 0.0% of budgetUniversity of California Irvine Foundation: $1,000 over 1y, 0.0% of budgetConcordia University Irvine: $1,000 over 1y, 0.0% of budgetMiracle Babies: $1,000 over 1y, 0.1% of budgetSan Diego Museum of Art: $1,000 over 1y, 0.0% of budgetNational Multiple Sclerosis Society: $800 over 2y, 0.0% of budgetJoni and Friends: $500 over 1y, 0.0% of budgetVoices of Our City Choir Inc: $500 over 1y, 0.2% of budgetJacobs & Cushman San Diego Food Bank: $500 over 1y, 0.0% of budgetRancho Penasquitos Little League: $500 over 1y, 0.3% of budgetYMCA of San Diego County: $500 over 1y, 0.0% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches: $500 over 1y, 0.0% of budgetFriends of the Fullerton Arboretum: $270 over 1y, 0.1% of budgetLucky Duck Foundation: $102 over 1y, 0.0% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 37.

Nonprofits that may fit its grantmaking

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 San Diego FoundationCA25.5× affinity11 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The San Diego Foundation · Jewish Community Foundation of San Diego · Sempra Foundation · David C Copley Foundation · Rancho Santa Fe Foundation · Price Philanthropies Foundation · The Conrad Prebys Foundation · The Country Friends · Kerr Family Foundation · Masserini Maurice J Tua · Pratt Memorial Fund · Walter J & Betty C Zable 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.

Compare Rosso Family Foundation with peer funders

About Rosso Family Foundation

How much does Rosso Family Foundation give?
Rosso Family Foundation reported 23 grants totaling $1,056,600 in its FY2026 IRS filing. It funded between 24 and 31 organizations a year over FY2018 to FY2025.
What does Rosso Family Foundation fund?
By grant dollars over FY2017 to FY2026, its largest causes are Arts & Culture (43%), Environment (13%), Education (13%).
Who are Rosso Family Foundation's largest grantees?
By total granted over FY2017 to FY2026: The San Diego Symphony Orchestra Association ($1.7M), The New Childrens Museum ($585k), Bishop School ($510k).
Does Rosso Family Foundation fund new organizations?
In FY2025, 21% of the organizations it funded were first-time grantees.
Does Rosso Family Foundation accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as Rosso Family Foundation?
Its strongest co-funders, measured against what their size predicts, include The San Diego Foundation, Jewish Community Foundation of San Diego, Sempra Foundation.
Where is Rosso Family Foundation based?
Rosso Family Foundation is based in CA.

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 104 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 2026, released 2026. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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