Rosso Family Foundation
The Rosso Family Foundation is a private foundation based in Rancho Santa Fe, California. Its 2026 filing reports grants to organizations including a health foundation, schools, arts and cultural institutions, and community organizations.
Rosso Family Foundation at a glance
In short: Rosso Family Foundation gave $1.1M across 23 grants in 2026 (avg $46K), mostly in California. 30% of 2026 grantees were new. Source: 2026 IRS Form 990-PF.
- Annual giving (2026)
- $1,056,600
- +29.3% vs 2025
- Grants made (2026)
- 23
- -8.0% vs 2025
- Average grant
- $45,939
- +40.6% vs 2025
- Median grant
- $15,000
- Total assets
- $2,859,011
- -17.0% vs 2025
- New grantees (estimate)
- 30% first-time grantees (7 of 23, 2026; small sample)
- Primary geography
- California (99% of itemized 2026 grant dollars)
- Latest 990 filing
- Form 990-PF, 2026 View filing
Data from IRS Form 990-PF, 2026; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to Rosso Family Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests. Its filing lists a written solicitation as the application material, no deadline, and no restrictions on awards.
- Review Cycle
- None listed.
- Deadline
- None listed.
- Contact
Application contact: Rosso Family Foundation
Mailing address: 2502 Elkhorn Ranch Street, Parker, CO 80138
Phone: (949) 677-0964
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Rosso Family Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2026
The largest 2026 recipient was Scripps Health Foundation ($275K). Together the top 10 received $990K.
Grant Size Distribution
129 grants across all recorded years
The most common grant size was under $50K: 113 grants of 129 (88%).
Geographic Focus
Where this funder awards grants
For 2026, the reported share of grant dollars by recipient state was California 99%, Illinois 1%, and Massachusetts, the District of Columbia, and Tennessee 0% each.
Grant Distribution by State
Share of 2026 grant dollars across all 23 itemized grants.
Cities
Is Rosso Family Foundation open to new grantees?
30%
first-time grantees, 2026
In 2026, 7 of 23 grantees (30%) were first-time recipients. With only 23 grantees, that is a small sample: one grantee more or less moves the share by about 4 points. First grants averaged $10K; repeat grants $62K. How we count
Medians: $10K first-time, $18K repeat.
- 61% of 2026 grantees were also funded in 2025. Method
- Giving grew 60% from 2023 to 2026. Method
- In 2026 it paid out 484% of its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2021–2026). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2021 to 2026, annual grant giving ranged from $651K (2021) to $1.1M (2026). In 2026 it made 23 grants totaling $1.1M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Scripps Health Foundation La Jolla, CA | Operations | $275,000 |
| The Bishop's School La Jolla, CA | Operations | $220,100 |
| San Diego Symphony San Diego, CA | Operations | $188,000 |
| San Diego Zoo Wildlife Alliance San Diego, CA | Operations | $110,000 |
| San Diego Padres Foundation San Diego, CA | Operations | $56,800 |
| La Jolla Country Day School La Jolla, CA | Operations | $40,000 |
| The New Children's Museum San Diego, CA | Operations | $40,000 |
| Salvation Army Womens Aux San Diego, CA | Operations | $20,300 |
| Santa Fe Christian Schools Solana Beach, CA | Operations | $20,000 |
| Museum of Contemporary Art La Jolla, CA | Operations | $20,000 |
Ready to take the next step with Rosso Family Foundation?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2026 | $2,859,011 | $496,297 | $1,082,085 | $1,056,600 | 23 | $1,056,600 | $470,527 | $218,416 |
| 2025 | $3,445,799 | $689,421 | $827,583 | $816,981 | 25 | $816,981 | $671,684 | $232,168 |
| 2024 | $3,583,961 | $314,420 | $755,057 | $740,435 | 28 | $744,125 | $296,008 | $248,227 |
| 2023 | $4,024,598 | $366,153 | $680,033 | $658,972 | 27 | $680,033 | $357,558 | $254,022 |
| 2022 | $4,338,478 | $623,967 | $717,047 | $699,715 | 26 | $717,016 | $617,196 | $298,323 |
| 2021 | $4,431,558 | $274,852 | $657,403 | $650,829 | 25 | — | $268,457 | $289,223 |
Under IRS private-foundation payout rules, Rosso Family Foundation reported a distributable amount of $218K for 2026 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
No mission statement for the foundation is provided. Its 2026 grants show support for varied organizations. Among the supported grantees, La Jolla Country Day School says it prepares individuals for intellectual exploration, personal growth, and social responsibility. The New Children’s Museum describes its work as using contemporary art to engage children and families and stimulate imagination, creativity, and critical thinking. Santa Fe Christian Schools describes itself as a college preparatory school in a Bible-based community. Ronald McDonald House Charities Northern California says it supports programs for children and families through the Sacramento Ronald McDonald House and Camp Ronald McDonald at Eagle Lake.
Grantmaking
In filing year 2026, the foundation reported 23 grants totaling $1,056,600. Grant amounts ranged from $500 to $275,000, with a median of $15,000. The largest grants included $275,000 to Scripps Health Foundation, $220,100 to The Bishop’s School, $188,000 to San Diego Symphony, and $110,000 to San Diego Zoo Wildlife Alliance; each was reported for operations.
The filing also reports grants of $56,800 to San Diego Padres Foundation; $40,000 each to La Jolla Country Day School and The New Children’s Museum; $20,300 to Salvation Army Womens Aux; $20,000 each to Santa Fe Christian Schools and Museum of Contemporary Art; $16,300 to Marantha Christian School; and $15,000 to Ronald McDonald House Charities.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2026 filing lists Louis T. Rosso as chairman, Maura P. Rosso as president, and Thomas Rosso, Kim Sherman, and Nancy Kalamaris as directors.
Rosso Family Foundation is led by Maura P. Rosso, President on every filing since 2021; none of the 5 officers listed in 2026 report compensation.
Officers on the 2026 filing
Maura P. Rosso
President
On filings since 2021
No compensation reported
Louis T. Rosso
Chairman
On filings since 2021
No compensation reported
Kim Sherman
Director
On filings since 2021
No compensation reported
Nancy Kalamaris
Director
On filings since 2021
No compensation reported
Thomas Rosso
Director
On filings since 2021
No compensation reported
Data from IRS Form 990 filings, 2021–2026. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about Rosso Family Foundation
How much does Rosso Family Foundation give each year?
Rosso Family Foundation gave $1.1M across 23 grants in 2026, according to its 2026 IRS Form 990-PF. In 2025 it gave $817K across 25 grants.
What is Rosso Family Foundation's typical grant size?
Rosso Family Foundation's median grant in 2026 was $15,000, and its average grant was $45,939, across 23 grants on its 2026 IRS Form 990-PF. Organizations receiving their first grant from Rosso Family Foundation that year got $10K on average.
Where does Rosso Family Foundation give grants?
Rosso Family Foundation gives mostly in California: 99% of the grant dollars itemized on its 2026 IRS Form 990-PF went to recipients there. The most frequent recipient cities were San Diego, CA (9 grants), La Jolla, CA (4 grants), Los Angeles, CA (2 grants) and Encinitas, CA (2 grants).
Does Rosso Family Foundation give general operating support?
Not in 2026: none of the 23 grants with a stated purpose on Rosso Family Foundation's 2026 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Operations" (23 grants).
Who are Rosso Family Foundation's largest grantees?
Rosso Family Foundation's largest 2026 grantees include Scripps Health Foundation ($275,000), The Bishop's School ($220,100) and San Diego Symphony ($188,000), according to its 2026 IRS Form 990-PF. Together they received 65% of its itemized 2026 grant dollars.
How large is Rosso Family Foundation?
Rosso Family Foundation reported $2.9M in total assets on its 2026 IRS Form 990-PF. It paid out $1.1M in qualifying distributions that year, against a required minimum of $218K (roughly 5% of its investment assets).
What does Rosso Family Foundation fund?
No mission statement for the foundation is provided. Its 2026 grants show support for varied organizations. Among the supported grantees, La Jolla Country Day School says it prepares individuals for intellectual exploration, personal growth, and social responsibility. See mission & focus areas ↑
How do I apply for a grant from Rosso Family Foundation?
The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Rosso Family Foundation's EIN?
Rosso Family Foundation's EIN (Employer Identification Number) is 27-5364190. IRS Form 990 filing data is available on this page for 2021–2026.
Does Rosso Family Foundation accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(2)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2026 (received by the IRS July 30, 2026)
- IRS filings on file for fiscal years 2021–2025
Live grants for the work Rosso Family Foundation funds
Philanthropy, Voluntarism & Grantmaking Open opportunities, soonest deadline first.
Explore Open Grants
Browse active grant opportunities in Rosso Family Foundation's focus areas in our free grants database
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Cite this profile
Grantable. (2026). Rosso Family Foundation funder profile. GrantGraph. Retrieved October 20, 2026, from https://grantable.co/funders/rosso-family-foundation-morg_e1517833eca4451ca77cf50760acc499
BibTeX
@misc{grantable_275364190_2026,
author = {{Grantable}},
title = {{Rosso Family Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/rosso-family-foundation-morg_e1517833eca4451ca77cf50760acc499},
note = {Accessed 2026-10-20. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from Rosso Family Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
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