California · Private foundation
Rosenberg Ach Foundation
Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
- $551k
- Granted FY2025(still arriving)
- 25
- Grants FY2025
- 17
- Organizations funded FY2024
- 24%
- First-time grantees FY2024
- Median grant, FY2025
- $5,000
- Largest grant, FY2025
- $230,000
- Organizations funded a year
- 5 to 34
- FY2018 to FY2024
- States reached, FY2025
- 4
- Total assets, FY2025
- $11M
- Applications
- Preselected organizations only
- Per its most recent filing; check its own site
How open it is to new grantees
In FY2024, 24% of the organizations Rosenberg Ach Foundation funded were first-time grantees, receiving 34% of its grant dollars.
New vs renewed · share of each year
In FY2024, 66% of grant dollars renewed an existing relationship; $115k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
The numbers by year
| Fiscal year | Organizations funded | To those organizations | First-time grantees |
|---|---|---|---|
| FY2025still arriving | 24 | $465k | 29% |
| FY2024 | 17 | $337k | 24% |
| FY2023 | 17 | $492k | 6% |
| FY2022 | 19 | $483k | 32% |
| FY2021 | 5 | $366k | 40% |
| FY2020 | 14 | $430k | 29% |
| FY2019 | 34 | $556k | 38% |
| FY2018 | 30 | $425k | 50% |
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.
Where its grants go
Grant dollars by states, across the years we hold.
Which US states its grants reach
Top grantees
Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.
| Grantee | Total granted | Years | Share of their budget |
|---|---|---|---|
| University of California San Francisco Foundation | $630,000 | 4 | 0% |
| Public Policy Institute of California | $495,000 | 8 | 1% |
| TROUT UNLIMITED aka THE ARIZONA COUNCIL OF TROUT UNLIMITED INC | $115,000 | 2 | 80% |
| Resources Legacy Fund | $50,000 | 1 | 0% |
| 10000 Degrees | $36,300 | 5 | 0% |
| The Breakthrough Collaborative | $35,000 | 3 | 1% |
| The Thacher School Inc | $34,500 | 4 | 0% |
| Henrys Fork Foundation Inc | $34,000 | 8 | 0% |
| Summer Search | $32,500 | 4 | 0% |
| Sweetwater Spectrum Inc | $30,000 | 6 | 0% |
Show all 43 grantees
What it could do for these grantees
Plus 36 recipients with no EIN on record ($2.3M), not named here.
Where it is load-bearing
Rosenberg Ach Foundation supplied at least a quarter of the budget for 1 of its grantees at some point. The chart plots its 40 largest grantees; load-bearing ones sit top left.
Tap a dot to name the grantee.
How this is measured
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
Open a dossier: The San Francisco Foundation · Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma · Marin Community Foundation · Silicon Valley Community Foundation · Swig Foundation · Oberndorf Family Foundation · Esb Charitable Foundation · Laural Foundation · Ishiyama Foundation · The Griffith Family Foundation · Robert and Dana Emery Family Foundation Rockefeller Trust Company · The Stanley S Langendorf Foundation
How this is measured
About Rosenberg Ach Foundation
- How much does Rosenberg Ach Foundation give?
- Rosenberg Ach Foundation reported 25 grants totaling $551,387 in its FY2025 IRS filing. It funded between 5 and 34 organizations a year over FY2018 to FY2024.
- What does Rosenberg Ach Foundation fund?
- By grant dollars over FY2017 to FY2025, its largest causes are Environment (37%), Health (33%), Social Science (13%).
- Who are Rosenberg Ach Foundation's largest grantees?
- By total granted over FY2017 to FY2025: University of California San Francisco Foundation ($630k), Public Policy Institute of California ($495k), TROUT UNLIMITED aka THE ARIZONA COUNCIL OF TROUT UNLIMITED INC ($115k).
- Does Rosenberg Ach Foundation fund new organizations?
- In FY2024, 24% of the organizations it funded were first-time grantees.
- Does Rosenberg Ach Foundation accept unsolicited applications?
- Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
- Which funders back the same organizations as Rosenberg Ach Foundation?
- Its strongest co-funders, measured against what their size predicts, include The San Francisco Foundation, Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma, Marin Community Foundation.
- Where is Rosenberg Ach Foundation based?
- Rosenberg Ach Foundation is based in CA.
Play a game based on Rosenberg Ach’s filings →