Mary L and William J Osher Foundation
See Schedule OThe purpose of the Mary L. and William J. Osher Foundation, stated in its most general way, is the advancement of the human condition. In more particular terms, as part of its mission, the Foundation will consider the use of its assets for the attainment of advancements relating to the following fields: 1. Human rights 2. Human health 3. Education 4. Maintenance of peace and individual equanimity 5. Further development of the fruits of civilization such as arts and technical development.
Mary L and William J Osher Foundation at a glance
In short: Mary L and William J Osher Foundation gave $2.7M across 4 grants in 2025 (avg $668K), top state New Jersey. Source: 2025 IRS Form 990.
- Annual giving (2025)
- $2,670,600
- -15.2% vs 2024
- Grants made (2025)
- 4
- +0.0% vs 2024
- Average grant
- $667,650
- -15.2% vs 2024
- Median grant
- $575,000
- Total assets
- $32,368,097
- +0.2% vs 2024
- Primary geography
- New Jersey (46% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated September 2026.
Who Mary L and William J Osher Foundation funds
How this funder distributes its grants
Top Recipients
Top 4 recipients in 2025
The largest 2025 recipient was American Friends of Leket Israel ($1.2M). Together the top 4 received $2.7M.
Grant Size Distribution
16 grants across all recorded years
The most common grant size was in the $250–500K range: 5 grants of 16 (31%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 4 itemized grants.
Cities
How Mary L and William J Osher Foundation gives
- Giving grew 78% from 2022 to 2025. Method
From the foundation's IRS Form 990 filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $440K (2020) to $3.1M (2024). In 2025 it made 4 grants totaling $2.7M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| American Friends of Leket Israel Teaneck, NJ | Emergency support | $1,220,600 |
| American Jewish Joint Distribution Committee New York, NY | General support | $850,000 |
| Houston Jewish Community Foundation Houston, TX | General support | $300,000 |
| Joan and Stanford Alexander Jewish Family Service Houston, TX | General support | $300,000 |
Ready to take the next step with Mary L and William J Osher Foundation?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $32,368,097 | $1,972,767 | $3,069,011 | $2,670,600 | 4 | $2,006,891 |
| 2024 | $32,305,051 | $1,491,430 | $3,483,669 | $3,150,000 | 4 | $1,531,493 |
| 2023 | $32,332,778 | $764,031 | $932,589 | $600,000 | 2 | $828,282 |
| 2022 | $31,678,792 | $1,890,341 | $1,875,466 | $1,500,000 | 1 | $1,970,302 |
| 2021 | $38,028,789 | $2,257,453 | $2,307,513 | $1,939,000 | 5 | $2,378,156 |
| 2020 | $32,883,607 | $-356,716 | $766,568 | $440,000 | 4 | $-252,326 |
About Mary L and William J Osher Foundation
Based on IRS filings
Mary L and William J Osher Foundation is a public charity, based in Houston, TX. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $32.4M in total assets. In 2025, it awarded 4 grants totaling $2.7M. Net investment income was $2.0M.
Focus Areas
Leadership & Key People
Officers and directors from IRS filings
Mary L and William J Osher Foundation is led by Michael Rubenstein, President on every filing since 2020; none of the 7 officers listed in 2025 report compensation.
Officers on the 2025 filing
Michael Rubenstein
President
On filings since 2020
1 hr/week
No compensation reported
Anne Osher
Trustee
On filings since 2020
1 hr/week
No compensation reported
Elizabeth Osher Del-Pico
Trustee
On filings since 2020
1 hr/week
No compensation reported
Esther Polland
Trustee
On filings since 2020
1 hr/week
No compensation reported
Henry P Osher
Trustee
On filings since 2020
1 hr/week
No compensation reported
Martha Kaplan Freedman
Trustee
On filings since 2023
1 hr/week
No compensation reported
Suzanne Jacobson
Secretary
On filings since 2020
1 hr/week
No compensation reported
Former officers (1)
- Former: Benjamin D Rosenberg (2020–2023) — Trustee
Data from IRS Form 990 filings, 2020–2025. "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 Mary L and William J Osher Foundation
How much does Mary L and William J Osher Foundation give each year?
Mary L and William J Osher Foundation gave $2.7M across 4 grants in 2025, according to its 2025 IRS Form 990. In 2024 it gave $3.1M across 4 grants.
What is Mary L and William J Osher Foundation's typical grant size?
Mary L and William J Osher Foundation's median grant in 2025 was $575,000, and its average grant was $667,650, across 4 grants on its 2025 IRS Form 990.
Where does Mary L and William J Osher Foundation give grants?
Mary L and William J Osher Foundation's top state is New Jersey, with 46% of the grant dollars itemized on its 2025 IRS Form 990. The next largest states were New York (32%) and Texas (22%). The most frequent recipient cities were Houston, TX (2 grants).
Does Mary L and William J Osher Foundation give general operating support?
Yes: 75% of Mary L and William J Osher Foundation's 2025 grants with a stated purpose (3 of 4) were for general or operating support, per its 2025 IRS Form 990.
How large is Mary L and William J Osher Foundation?
Mary L and William J Osher Foundation reported $32.4M in total assets on its 2025 IRS Form 990. Its revenue that year was $2.0M.
What is Mary L and William J Osher Foundation's EIN?
Mary L and William J Osher Foundation's EIN (Employer Identification Number) is 20-5094518. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(7)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2020 (received by the IRS July 14, 2021)
- Updated Form 990 for fiscal year 2021 (received by the IRS July 14, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS July 14, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS February 2, 2025)
- Updated Form 990 for fiscal year 2024 (received by the IRS July 15, 2025)
- Added Form 990 for fiscal year 2025 (received by the IRS July 13, 2026)
- IRS filings on file for fiscal years 2020–2024
Live grants for the work Mary L and William J Osher Foundation funds
Philanthropy, Voluntarism & Grantmaking Open opportunities, soonest deadline first.
Explore Open Grants
Browse active grant opportunities in Mary L and William J Osher Foundation's focus areas in our free grants database
Similar Funders
Funders that support many of the same organizations
Jewish Community Alliance Southern Maine
Portland, ME
To coordinate, promote, and support the Jewish philanthropic, benevolent, educational, and communal activities in Southern Maine. To foster, develop, and encourage agencies as will best promote the welfare of this community.
Assets
$13.7M
Grants
9
Total Given
$122K
The Nathan J Klein Fund
Houston, TX
The Nathan J Klein Fund supports tax-exempt charities, with recent grants benefiting Jewish community, family, senior-care, and Holocaust education organizations, among others. In 2025, grants ranged from $1,900 to $80,000, with a median of $6,100; 98% of grant dollars went to Texas and 2% to New York. The filing does not state whether it accepts unsolicited requests.
Assets
$2.5M
Grants
11
Total Given
$200K
Edith and Bernard Stolbun Family Foundation
Houston, TX
The foundation supports Jewish community and campus programs, community services, and environmental organizations, with all reported 2024 grants going to Texas recipients. Its 2024 grants ranged from $500 to $25,000, with a median of $2,500. It gives only to preselected charitable organizations and does not accept unsolicited requests.
Assets
$783K
Grants
13
Total Given
$77K
Morris & Anne Ashendorf Foundation Inc
Potomac, MD
The Morris & Anne Ashendorf Foundation supports religious, community, health, and Israel-related organizations, with most 2024 funding going to Maryland and New York. Its 13 grants ranged from $200 to $7,315, with a median of $1,000. It accepts no unsolicited requests and gives only to preselected organizations.
Assets
$1.7M
Grants
13
Total Given
$25K
Jewish Federation of Greater Houston
Houston, TX
The Jewish Federation of Greater Houston funds programs serving the Houston Jewish community, Israel, and Jewish communities worldwide, including education, basic needs, youth and senior services, security, and disaster response. Its 2025 grants had a median of $60,000 and ranged from $5,900 to $4,064,000; the profile does not state whether it accepts unsolicited requests.
Assets
$16.5M
Grants
85
Total Given
$17.5M
Arthur and Joan Weisberg Family
Huntington, WV
The Arthur and Joan Weisberg Family supports a range of charitable organizations, with 2025 grants of $5,000–$125,000 and a median award of $20,000. It funded organizations in several states, especially West Virginia, Texas, New York, and California. The foundation gives only to preselected organizations and does not accept unsolicited requests.
Assets
$16.9M
Grants
71
Total Given
$2.0M
More similar funders
More Funders in Texas
The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open
Figures come from Mary L and William J Osher 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.
Mary L and William J Osher Foundation down — hundreds of funders to go?