Rosenberg Ach Foundation
Rosenberg Ach Foundation is a private foundation located in San Francisco, California. Its 2025 filing reports 25 grants totaling $551,387, with awards to organizations in several states and the largest share of grant dollars going to California recipients.
Rosenberg Ach Foundation at a glance
In short: Rosenberg Ach Foundation gave $551K across 25 grants in 2025 (avg $22K), mostly in California. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $551,387
- +15.9% vs 2024
- Grants made (2025)
- 25
- +31.6% vs 2024
- Average grant
- $22,055
- -11.9% vs 2024
- Median grant
- $5,000
- Total assets
- $10,742,676
- +1.9% vs 2024
- Primary geography
- California (88% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026.
How to apply to Rosenberg Ach 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 for funds.
- Contact
Mailing address: 124 Commonwealth Avenue, San Francisco, CA 94118
Phone: (415) 434-3744
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Rosenberg Ach Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was UCSF Foundation ($230K). Together the top 10 received $512K.
Grant Size Distribution
86 grants across all recorded years
The most common grant size was under $50K: 71 grants of 86 (83%).
Geographic Focus
Where this funder awards grants
In 2025, 88% of grant dollars went to recipients in California, 7% to Arizona, 4% to Washington, DC, and 1% to Idaho.
Grant Distribution by State
Share of 2025 grant dollars across all 25 itemized grants.
Cities
How Rosenberg Ach Foundation gives
- 60% of 2025 grantees were also funded in 2024. Method
- Giving held roughly steady from 2022 to 2025 (+14%). Method
- In 2025 it paid out 96% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2025). 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 2020 to 2025, annual grant giving ranged from $366K (2021) to $551K (2025). In 2025 it made 25 grants totaling $551K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| UCSF Foundation San Francisco, CA | HEALTH | $230,000 |
| The Nature Conservancy San Francisco, CA | Environmental | $86,000 |
| Cal Trout San Francisco, CA | Environmental | $54,730 |
| Trout Unlimited Chandler, AZ | Environmental | $40,000 |
| San Francisco Friends School San Francisco, CA | The Arts | $30,000 |
| Reproductive Freedom for All (NARAL) Washington, DC | Health | $20,000 |
| Public Policy Institute of California San Francisco, CA | Environmental | $20,000 |
| 10000 Degrees San Rafael, CA | Community | $16,000 |
| Students Rising Above (SRA) San Francisco, CA | Education | $10,000 |
| Henry's Fork Foundation Ashton, ID | Environmental | $5,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $10,742,676 | $790,188 | $592,521 | $551,387 | 25 | $558,640 | $756,478 | $584,452 |
| 2024 | $10,544,409 | $595,271 | $587,213 | $475,600 | 19 | $477,620 | $556,878 | $545,203 |
| 2023 | $10,536,351 | $3,924,339 | $592,743 | $503,240 | 18 | $503,640 | $3,835,361 | $436,737 |
| 2022 | $7,204,734 | $421,488 | $603,604 | $483,348 | 19 | $494,280 | $170,678 | $492,543 |
| 2021 | $7,386,536 | $869,237 | $472,159 | $366,000 | 5 | $366,000 | $774,542 | $538,290 |
| 2020 | $6,989,458 | $353,402 | $525,571 | $430,026 | 14 | — | $214,740 | $476,767 |
Under IRS private-foundation payout rules, Rosenberg Ach Foundation reported a distributable amount of $584K for 2025 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
The foundation’s 2025 grants included purposes recorded as health, environmental, arts, community, and education. Grantees’ own descriptions illustrate the range of organizations supported: San Francisco Friends School describes a Quaker-values-based education community, while 10,000 Degrees describes its work helping students from low-income backgrounds access and complete higher education. Environmental grantees include Sustainable Conservation, which says it advances collaborative stewardship of California’s land, air, and water, and Henry’s Fork Foundation, which says it works to conserve, protect, and restore the Henry’s Fork and its watershed.
Other 2025 grantees include Greenlight Clinic, which describes providing free, confidential mental health therapy to young people in the San Francisco Bay Area, and Sweetwater Spectrum, which describes providing community-based housing for adults with autism or similar disabilities.
Grantmaking
In 2025, the foundation gave 25 grants totaling $551,387. Individual grants ranged from $1,000 to $230,000, with a median grant of $5,000.
The largest 2025 awards included $230,000 to UCSF Foundation for health; $86,000 to The Nature Conservancy and $54,730 to Cal Trout for environmental purposes; and $40,000 to Trout Unlimited for an environmental purpose. Other awards included $30,000 to San Francisco Friends School, $20,000 to Reproductive Freedom for All (NARAL), $20,000 to the Public Policy Institute of California, and $16,000 to 10,000 Degrees.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Linda Rosenberg Ach as director, president, and secretary, and Andrew Ach as director and treasurer.
Rosenberg Ach Foundation is led by Linda Rosenberg Ach, Director, President & Secretary on every filing since 2020; none of the 2 officers listed in 2025 report compensation.
Officers on the 2025 filing
Linda Rosenberg Ach
Director, President & Secretary
On filings since 2020
1 hr/week
No compensation reported
Andrew Ach
Director & Treasurer
On filings since 2020
1 hr/week
No compensation reported
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 Rosenberg Ach Foundation
How much does Rosenberg Ach Foundation give each year?
Rosenberg Ach Foundation gave $551K across 25 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $476K across 19 grants.
What is Rosenberg Ach Foundation's typical grant size?
Rosenberg Ach Foundation's median grant in 2025 was $5,000, and its average grant was $22,055, across 25 grants on its 2025 IRS Form 990-PF.
Where does Rosenberg Ach Foundation give grants?
Rosenberg Ach Foundation gives mostly in California: 88% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was Arizona (7%). The most frequent recipient cities were San Francisco, CA (15 grants) and Washington, DC (2 grants).
Does Rosenberg Ach Foundation give general operating support?
Not in 2025: none of the 25 grants with a stated purpose on Rosenberg Ach Foundation's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Environmental" (7 grants), "Health" (5 grants) and "Community" (4 grants).
Who are Rosenberg Ach Foundation's largest grantees?
Rosenberg Ach Foundation's largest 2025 grantees include UCSF Foundation ($230,000), The Nature Conservancy ($86,000) and Cal Trout ($54,730), according to its 2025 IRS Form 990-PF. Together they received 67% of its itemized 2025 grant dollars.
How large is Rosenberg Ach Foundation?
Rosenberg Ach Foundation reported $10.7M in total assets on its 2025 IRS Form 990-PF. It paid out $559K in qualifying distributions that year, against a required minimum of $584K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
What does Rosenberg Ach Foundation fund?
The foundation’s 2025 grants included purposes recorded as health, environmental, arts, community, and education. See mission & focus areas ↑
How do I apply for a grant from Rosenberg Ach 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 Rosenberg Ach Foundation's EIN?
Rosenberg Ach Foundation's EIN (Employer Identification Number) is 27-0965935. IRS Form 990 filing data is available on this page for 2020–2025.
Does Rosenberg Ach 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 2025 (received by the IRS August 4, 2026)
- IRS filings on file for fiscal years 2020–2024
Live grants for the work Rosenberg Ach Foundation funds
Philanthropy, Voluntarism & Grantmaking Open opportunities, soonest deadline first.
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Browse active grant opportunities in Rosenberg Ach Foundation's focus areas in our free grants database
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Cite this profile
Grantable. (2026). Rosenberg Ach Foundation funder profile. GrantGraph. Retrieved October 17, 2026, from https://grantable.co/funders/rosenberg-ach-foundation-morg_0e3740723c5d4a3d9d1e09c48c51ade9
BibTeX
@misc{grantable_270965935_2026,
author = {{Grantable}},
title = {{Rosenberg Ach Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/rosenberg-ach-foundation-morg_0e3740723c5d4a3d9d1e09c48c51ade9},
note = {Accessed 2026-10-17. 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 Rosenberg Ach 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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