Stiassni Family Foundation

Private foundation · Grantmaker Rancho Palos Verdes, CA EIN: 46-4358542

The Stiassni Family Foundation is a private foundation based in Rancho Palos Verdes, California. Its 2025 filing reports grants to charitable organizations supporting children’s health, education, conservation, medical services and research, community services, and other activities.

Key facts about Stiassni Family Foundation

In short: Stiassni Family Foundation gave $7K across 15 grants in 2025 (avg $491.667), mostly in California. 47% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.

EIN
46-4358542
Latest 990 filing
Form 990-PF, 2025
Annual giving (2025)
$7,375
Grants made (2025)
15
Average grant
$492
Median grant
$250
New grantees (estimate)
47% first-time grantees (7 of 15, 2025)
Total assets
$122,946
Primary geography
California (59% of itemized 2025 grant dollars)
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 for funds. Full details ↓

Data from IRS Form 990-PF, 2025; updated September 2026. New grantees are estimated by matching recipient names across years (methodology). Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Financial Overview

From 2025 IRS Form 990-PF · View filing

Total Assets

$123K

+3.5% YoY

Annual Giving

$7K

+408.6% YoY

Grant Count

15

+87.5% YoY

Avg Grant Size

$491.667

+171.3% YoY

Is Stiassni Family Foundation open to new grantees?

47%

first-time grantees, 2025

In 2025, 7 of 15 grantees (47%) were first-time recipients. First grants averaged $343; repeat grants $622. How we count

Medians: $250 first-time, $525 repeat.

  • 27% of 2025 grantees were also funded in 2024. Method
  • Giving grew 50% from 2022 to 2025. Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2019–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.

Research compiled by Grantable AI from public sources. Last updated September 2026.

Mission & Focus Areas

No mission statement for the foundation is provided. Its 2025 grants include support for organizations whose own missions include conserving Martha’s Vineyard’s landscape (Sheriff’s Meadow Foundation), fostering stewardship of the Pacific Ocean and its ecosystems (Aquarium of the Pacific), and empowering homeless and working-poor people to achieve self-sufficiency (Harbor Interfaith Services). Other listed grant purposes include children’s health, education, cancer research, veterans’ services, and support for yachting.

Grantmaking

In 2025, the foundation gave $7,375 through 15 grants. Grant amounts ranged from $50 to $1,600, with a median of $250.

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Geographic Focus

Where this funder awards grants

The 2025 grant dollars went to recipients in California (59%), Massachusetts (27%), Texas (12%), Tennessee (1%), and New York (1%).

Grant Distribution by State

10states

Share of 2025 grant dollars across all 15 itemized grants.

Cities

Palos Verdes EstatesEdgartownRancho Palos VerdesVineyard HavenChula VistaDallasNew YorkLos AngelesLong BeachPalos VerdesBostonMemphisMission ViejoMissoulaSan DiegoSan PedroAmarilloAnnapolisCambridgeEnglewood

Giving Over Time

Total grant dollars and number of grants per year

$0$5K$10K$15K12 grants2019 10 grants2020 21 grants2021 11 grants2022 10 grants2023 8 grants2024 15 grants2025

From 2019 to 2025, annual grant giving ranged from $1K (2024) to $11K (2021). In 2025 it made 15 grants totaling $7K.

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

Peninsula Committee Children's Hosp: $2KPeninsula Committee Children'sHosp$2KWhitney Young Foundatiton: $1KWhitney Young Foundatiton$1KAquarium of the Pacific: $1KAquarium of the Pacific$1KSheriff's Meadow Foundation: $1KSheriff's Meadow Foundation$1KSusan G Komen 3 Day: $800Susan G Komen 3 Day$800Island Health Care: $500Island Health Care$500Chabad on the Vineyard: $250Chabad on the Vineyard$250Ratopia Charity Fund: $250Ratopia Charity Fund$250Edgartown Yacht Club Foundation: $250Edgartown Yacht ClubFoundation$250Harbor Interfaith Services: $175Harbor Interfaith Services$175

The largest 2025 recipient was Peninsula Committee Children's Hosp ($2K). Together the top 10 received $7K.

Grant Size Distribution

65 grants across all recorded years

65<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 65 grants of 65 (100%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
Peninsula Committee Children's Hosp Palos Verdes Estates, CATo Provide Funds for Children's Health$1,600
Whitney Young Foundatiton Palos Verdes Estates, CAPromote Education for Underpriviledged$1,000
Aquarium of the Pacific Long Beach, CATo provide funds for animal care, education, and conservation efforts.$1,000
Sheriff's Meadow Foundation Vineyard Haven, MATo provide funds for forestry land conservation and management$1,000
Susan G Komen 3 Day Dallas, TXSupport Breast Cancer Research.$800
Island Health Care Edgartown, MATo provide funds for medical services$500
Chabad on the Vineyard Vineyard Haven, MAEnrich Jewish Community.$250
Ratopia Charity Fund Rancho Palos Verdes, CATo Fund Medical Research for Blood Related Cancers$250
Edgartown Yacht Club Foundation Edgartown, MATo provide funds to support yachting$250
Harbor Interfaith Services San Pedro, CATo provide funds to assist homeless and working poor achieve sufficiency$175

Financial History

Multi-year comparison from IRS filings

Filing year Assets Revenue Expenses Grants Grant count
2025 $122,946 $15,106 $10,740 $7,375 15
2024 $118,780 $22,497 $5,032 $1,450 8
2023 $100,313 $13,451 $6,711 $3,725 10
Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$20K$40K$60K2019 2020 2021 2022 2023 2024 2025
Metric202520242023
Total Assets$122,946$118,780$100,313
Revenue$15,106$22,497$13,451
Expenses$10,740$5,032$6,711
Qualifying Distributions$7,375$1,450$3,725
Net Investment Income$10,051$17,225$4,930

Data update history

When this profile's IRS filing data changed on Grantable

  1. Added Form 990-PF for fiscal year 2019 (received by the IRS August 25, 2020)
  2. Added Form 990-PF for fiscal year 2025 (received by the IRS June 30, 2026)
  3. IRS filings on file for fiscal years 2020–2024

Leadership & Key People

Leadership team and compensation from IRS filings

Nicholas Stiassni is listed as president on the 2025 filing.

Stiassni Family Foundation is led by Nicholas Stiassni, President on every filing since 2019 — the only officer listed, and uncompensated.

Officers on the 2025 filing

  • Nicholas Stiassni

    President

    On filings since 2019

    No compensation reported

Data from IRS Form 990 filings, 2019–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Contact

Mailing address: 3400 Palos Verdes Drive West, Rancho Palos Verdes, CA 90275
Phone: (310) 739-4445

Frequently asked questions about Stiassni Family Foundation

How much does Stiassni Family Foundation give each year?

Stiassni Family Foundation gave $7K across 15 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $1K across 8 grants.

What is Stiassni Family Foundation's typical grant size?

Stiassni Family Foundation's median grant in 2025 was $250, and its average grant was $492, across 15 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Stiassni Family Foundation that year got $343 on average.

Where does Stiassni Family Foundation give grants?

Stiassni Family Foundation gives mostly in California: 59% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were Massachusetts (27%) and Texas (12%). The most frequent recipient cities were Palos Verdes Estates, CA (2 grants), Vineyard Haven, MA (2 grants), Edgartown, MA (2 grants) and San Diego, CA (2 grants).

Does Stiassni Family Foundation give general operating support?

Not in 2025: none of the 15 grants with a stated purpose on Stiassni Family Foundation's 2025 IRS Form 990-PF were described as general or operating support.

Who are Stiassni Family Foundation's largest grantees?

Stiassni Family Foundation's largest 2025 grantees include Peninsula Committee Children's Hosp ($1,600), Whitney Young Foundatiton ($1,000) and Aquarium of the Pacific ($1,000), according to its 2025 IRS Form 990-PF. Together they received 49% of its itemized 2025 grant dollars.

How large is Stiassni Family Foundation?

Stiassni Family Foundation reported $123K in total assets on its 2025 IRS Form 990-PF. Its revenue that year was $15K.

What does Stiassni Family Foundation fund?

No mission statement for the foundation is provided. See mission & focus areas ↑

How do I apply for a grant from Stiassni Family Foundation?

The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is Stiassni Family Foundation's EIN?

Stiassni Family Foundation's EIN (Employer Identification Number) is 46-4358542. IRS Form 990 filing data is available on this page for 2019–2025.

Does Stiassni Family Foundation accept unsolicited proposals?

No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑

Data last updated September 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.

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