Rosenberg Ach Foundation
Rosenberg Ach Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in San Francisco, CA. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $10.5M in total assets. In 2024, it awarded 19 grants totaling $476K. Net investment income was $557K.
Key facts about Rosenberg Ach Foundation
- EIN
- 27-0965935
- Latest 990 filing
- Form 990-PF, 2024
- Annual giving (2024)
- $475,600
- Grants made (2024)
- 19
- Average grant
- $25,032
- Median grant
- $5,000
- New grantees (estimate)
- 21% first-time grantees (4 of 19, 2024)
- Total assets
- $10,544,409
- Primary geography
- California (79% of itemized 2024 grant dollars)
Data from IRS Form 990-PF, 2024; updated September 2026. New grantees are estimated by matching recipient names across years (methodology).
Who Rosenberg Ach Foundation funds
By grant dollars, the top recipient states for Rosenberg Ach Foundation's 19 itemized 2024 grants were California (79%) and Arizona (16%). The most frequent recipient cities were San Francisco, CA (10 grants) and Washington, DC (2 grants). None of its 19 grants with a stated purpose were described as general or operating support. Recurring purposes include "Environmental" (6 grants), "Health" (4 grants) and "Community" (4 grants).
Is Rosenberg Ach Foundation open to new grantees?
21%
first-time grantees, 2024
In 2024, 4 of 19 grantees (21%) were first-time recipients. First grants averaged $11K; repeat grants $29K. How we count
Medians: $5K first-time, $5K repeat.
- 74% of 2024 grantees were also funded in 2023. Method
- Giving grew 30% from 2021 to 2024. Method
- In 2024 it paid out 88% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
Estimate from itemized IRS Form 990-PF grant lists (2020–2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Next steps with Rosenberg Ach Foundation
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Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$10.5M
+0.1% YoY
Annual Giving
$476K
-5.5% YoY
Grant Count
19
+5.6% YoY
Avg Grant Size
$25K
-10.5% YoY
Under IRS private-foundation payout rules, Rosenberg Ach Foundation reported a distributable amount of $545K for 2024 — the minimum it must pay out in qualifying distributions.
About Rosenberg Ach Foundation
Based on IRS filings
Rosenberg Ach Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in San Francisco, CA. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $10.5M in total assets. In 2024, it awarded 19 grants totaling $476K. Net investment income was $557K.
Focus Areas
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of all 19 itemized 2024 grant dollars.
Cities
Financial History
Multi-year comparison from IRS filings
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $10,544,409 | $10,536,351 | $7,204,734 |
| Revenue | $595,271 | $3,924,339 | $421,488 |
| Expenses | $587,213 | $592,743 | $603,604 |
| Qualifying Distributions | $477,620 | $503,640 | $494,280 |
| Net Investment Income | $556,878 | $3,835,361 | $170,678 |
| Distributable Amount | $545,203 | $436,737 | $492,543 |
Data update history
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
Grant Size Distribution
75 grants across all recorded years
Giving History
Grant recipients and amounts by year
Among its reported 2024 grants, the largest recipients include The Nature Conservancy ($134,000), Ucsf Foundation ($100,000), Trout Unlimited ($75,000).
| Recipient | Purpose | Amount |
|---|---|---|
| The Nature Conservancy San Francisco, CA | Environmental | $134,000 |
| UCSF FOUNDATION San Francisco, CA | HEALTH | $100,000 |
| Trout Unlimited Chandler, AZ | Environmental | $75,000 |
| CAL TROUT San Francisco, CA | ENVIRONMENTAL | $50,000 |
| San Francisco Film Society (SFFILM) San Francisco, CA | the arts | $30,000 |
| Urban School San Francisco, CA | education | $20,000 |
| Reproductive Freedom for All (NARAL) Washington, DC | Health | $15,000 |
| 10000 Degrees San Rafael, CA | Community | $5,100 |
| Students Rising Above (SRA) San Francisco, CA | Education | $5,000 |
| Henry's Fork Foundation Ashton, ID | Environmental | $5,000 |
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
No officer or director reported compensation in the available filings.
From 2024 IRS filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| Linda Rosenberg Ach | DIRECTOR;PRESIDENT;SECRETARY | 1 | — |
| Andrew Ach | DIRECTOR;TREASURER | 1 | — |
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What is Rosenberg Ach Foundation?
Rosenberg Ach Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in San Francisco, CA. It holds $10.5M in total assets as of 2024.
How large is Rosenberg Ach Foundation?
As of 2024, Rosenberg Ach Foundation holds $10.5M in total assets with $595K in annual revenue. It awarded 19 grants totaling $476K in 2024.
Where does Rosenberg Ach Foundation operate?
Rosenberg Ach Foundation has awarded grants in Arizona, California, District of Columbia, Idaho, Illinois, Massachusetts.
What size grants does Rosenberg Ach Foundation award?
In 2024, Rosenberg Ach Foundation awarded 19 grants totaling $476K — an average of about $25K per grant, based on its IRS Form 990 filings.
How much is Rosenberg Ach Foundation required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2024, Rosenberg Ach Foundation reported a distributable amount of $545K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
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 2020–2024.
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Data last updated September 2026. Sourced from IRS Form 990-PF filings.