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Rosenberg Ach Foundation at a glance

· 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 FY2025still arriving
25
Grants FY2025still arriving
4
States reached
$230k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
0196% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Environment$1.4MHealth$1.2MSocial Science$475kEducation$334kArts & Culture$145kEmployment$33kHousing & Shelter$25kYouth Development$25kOther$0
02FY2025 · 25 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k16 grants · $45k
  • $10k–50k6 grants · $136k
  • $50k–250k3 grants · $371k
$5,000
Median grant
4
States reached
$11M
Total assets
Largest grants
RecipientAmount
UCSF FOUNDATION$230,000
The Nature Conservancy$86,000
Individual grant recipient$54,730
Trout Unlimited$40,000
San Francisco Friends School$30,000
Reproductive Freedom for All (NARAL)$20,000
Public Policy Institute of California$20,000
10000 Degrees$16,000
Students Rising Above (SRA)$10,000
Golden State Opportunity Fund$5,000
Greenlight Clinic$5,000
Sweetwater Spectrum$5,000
Sustainable Conservation$5,000
Henry's Fork Foundation$5,000
San Francisco Museum of Modern Art$4,600
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its human-services grants (FY18–25, $30k) land where the poverty rate runs at 8%, against an area that typically sits at 8%. 50% of those dollars go to grantees based in above-average-need neighborhoods. Its grants spread fairly evenly across need levels.

area typical 8%Sweetwater Spectrum: $5k → 9%Sweetwater Spectrum: $5k → 9%Sweetwater Spectrum: $5k → 9%SWEETWATER SPECTRUM: $5k → 8%SWEETWATER SPECTRUM: $5k → 8%SWEETWATER SPECTRUM: $5k → 8%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

WA
ID
IL
NY
MA
OR
CA
VA
MD
AZ
DC
GA
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

82%of every dollar goes to organizations it has funded before.
$3.3M · 34 repeat orgs$707k to everyone else

34 repeat relationships: 17 still active in FY2025, 17 since wound down; 7 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

34
38

Total granted

$3.3M
$670k

Median revenue growth · since first grant

+11%
+14%

Still filing today

53%
42%

New vs renewed · share of each year

In FY2025, 92% of grant dollars renewed an existing relationship; $37k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’21’22’23’24’25
EducationEnvironmentHealthAnimalsArts & CulturePhilanthropyOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.

Backed again, and grew

  • PUBLIC POLICY INSTITUTE OF CALIFORNIA
    8× · 2017–2025 · $495k · revenue +6%
  • TU
    TROUT UNLIMITED aka THE ARIZONA COUNCIL OF TROUT UNLIMITED INC
    2× · 2024–2025 · $115k · revenue +2% · 80% of their budget
  • 1D
    10000 DEGREES
    5× · 2019–2025 · $36k · revenue +101%

Funded once

  • UR
    UCSF - RAFF
    one grant, 2017 · $200k
  • UN
    UCSF - NERUOSCIENCES INITIATIVE
    one grant, 2019 · $200k
  • RL
    RESOURCES LEGACY FUNDgraduated
    one grant, 2020 · $50k · revenue +114%
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
Resource Renewal Institute

The resource renewal institute facilitates the creation, development and implementation of practical strategies to solve the entire complex environmental problem by addressing it comprehensively.

Environment
2
Sustainable Fisheries Partnership Foundation

To engage and catalyze global seafood supply chains in rebuilding depleted fish stocks and reducing the environmental impacts of fishing and fish farming.

Animals
3
The Salish Sea School

The salish sea schools mission is to awaken curiosity and deepen connections with the sea through shore and sea exploration programs for all ages.

Environment
4
Sempervirens Fund

To ensure coast redwood forests in the santa cruz mountains thrive for generations to come. since 1900, sempervirens has protected more than 36,000 acres. learn more about our mission, vision, and strategic plan through 2030 at:…

Environment
5
Pomona College

Throughout its history, pomona college has educated men and women of exceptional promise. we gather individuals, regardless of financial circumstances, into a small residential community that is strongly rooted in southern california yet…

Education
6
University of Southern California

The central mission of the university of southern california is the development of human beings and society as a whole through the cultivation and enrichment of the human mind and spirit. the principal means by which our mission is…

Education
7
Fishery Foundation of California

To improve fisheries resources in the state of california.

Animals
8
World Wildlife Fund Inc

Wwf's mission is to conserve nature and reduce the most pressing threats to the diversity of life on earth. (continued on schedule o)

Environment
9
Swan Valley Connections

Maintain the swan valley's unique natural resources and ensure that a vibrant human community can sustain itself through stewardship, education, economic viability, and conservation on public and private lands.

Environment
10
Conservation International Foundation

Ci works to spotlight and secure the critical benefits that nature provides to humanity.

Environment
11
Nature Collective

Nature collective's mission is to drive a passion for nature for all. we think inclusively and diversely when serving those devoid of nature those who remember nature and want to connect back to it and those who have an affinity with…

Environment
12
Rare

Rare inspires change so people and nature thrive.

Environment
How this is measured
The grantee most central to the portfolio’s shape is Wild Salmon Center; the most unlike its peers is Donner Summit Avalanche Dogs. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

45 grantees tracked through their own filings, 2017–2026.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2026, not grant rows in a single year, so this will not match the grant count on the cover. 45 of the 82 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

1
Load-bearing (≥25% of a budget)
7
Early backer (in before they grew)
42/45
Grantees still filing
26/45
Grew since first funded

Where the money sits, by cause and then by grantee

Individual grant recipient: $957,230 · OtherIndividual grant recipientPUBLIC POLICY INSTITUTE OF CALIFORNIA: $495,000 · OtherPUBLIC POLICY INSTITUTE OF CALIFORNIAUCSF CHANCELLOR'S FUND: $325,000 · OtherUCSF CHANCELLOR'S FUNDTHE NATURE CONSERVANCY: $243,000 · OtherTHE NATURE CONSERVANCYUCSF - RAFF: $200,000 · OtherUCSF - RAFFUCSF - NERUOSCIENCES INITIATIVE: $200,000 · OtherUCSF - NERUOSCIENCES INITIATIVETROUT UNLIMITED aka THE ARIZONA COUNCIL OF TROUT UNLIMITED INC: $115,000 · Other+51 more: $715,775 · Other+51 moreUNIVERSITY OF CALIFORNIA SAN FRANCISCO FOUNDATION: $630,000 · EducationUNIVERSITY OF CALIFORN…THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY: $100,000 · EducationTHE BOARD OF TRUSTEES …10000 DEGREES: $36,300 · EducationTHE BREAKTHROUGH COLLABORATIVE: $35,000 · EducationThe Thacher School Inc: $34,500 · EducationSAN FRANCISCO FRIENDS SCHOOL: $30,000 · Education+4 more: $9,500 · EducationRESOURCES LEGACY FUND: $50,000 · EnvironmentSustainable Conservation: $25,100 · EnvironmentGREENBELT ALLIANCEPEOPLE FOR OPEN SPACE: $14,500 · EnvironmentTHE TRUST FOR PUBLIC LAND: $10,000 · EnvironmentTen Strands: $7,500 · Environment+1 more: $500 · EnvironmentSUMMER SEARCH: $32,500 · EmploymentSWEETWATER SPECTRUM INC: $30,000 · Human ServicesSAN FRANCISCO JAZZ ORGANIZATION: $19,500 · Arts & CultureSAN FRANCISCO MUSEUM OF MODERN ART: $7,100 · Arts & CultureKQED INC: $1,500 · Arts & CultureTROUT UNLIMITED INC: $10,000 · AnimalsWILD SALMON CENTER: $6,000 · AnimalsKEEP FISH WET INC: $1,000 · Animals
Other$3,251,005Education$875,300Environment$107,600Employment$32,500Human Services$30,000Arts & Culture$28,100Animals$17,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetUNIVERSITY OF CALIFORNIA SAN FRANCISCO FOUNDATION: $630,000 over 4y, 0.0% of budgetPUBLIC POLICY INSTITUTE OF CALIFORNIA: $495,000 over 8y, 0.5% of budgetTHE NATURE CONSERVANCY: $243,000 over 6y, 0.0% of budgetTROUT UNLIMITED aka THE ARIZONA COUNCIL OF TROUT UNLIMITED INC: $115,000 over 2y, 80% of budgetTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY: $100,000 over 1y, 0.0% of budgetRESOURCES LEGACY FUND: $50,000 over 1y, 0.1% of budget10000 DEGREES: $36,300 over 5y, 0.1% of budgetTHE BREAKTHROUGH COLLABORATIVE: $35,000 over 3y, 0.8% of budgetThe Thacher School Inc: $34,500 over 4y, 0.1% of budgetHENRYS FORK FOUNDATION INC: $34,000 over 8y, 0.3% of budgetSUMMER SEARCH: $32,500 over 4y, 0.1% of budgetSWEETWATER SPECTRUM INC: $30,000 over 6y, 0.5% of budgetSAN FRANCISCO FRIENDS SCHOOL: $30,000 over 1y, 0.1% of budgetSustainable Conservation: $25,100 over 6y, 0.1% of budgetSAN FRANCISCO JAZZ ORGANIZATION: $19,500 over 5y, 0.0% of budgetSILVER CREEK ALLIANCE INC: $15,000 over 6y, 1.5% of budgetGREENBELT ALLIANCEPEOPLE FOR OPEN SPACE: $14,500 over 7y, 0.3% of budgetTHE TRUST FOR PUBLIC LAND: $10,000 over 1y, 0.0% of budgetGREENLIGHT CLINIC: $10,000 over 2y, 2.0% of budgetTROUT UNLIMITED INC: $10,000 over 1y, 0.0% of budgetTen Strands: $7,500 over 3y, 0.2% of budgetSAN FRANCISCO MUSEUM OF MODERN ART: $7,100 over 2y, 0.0% of budgetWILD SALMON CENTER: $6,000 over 2y, 0.1% of budgetMeritus College Fund: $5,000 over 1y, 0.3% of budgetALDER GRADUATE SCHOOL OF EDUCATION: $5,000 over 2y, 0.0% of budgetCOACHING CORPS: $5,000 over 1y, 0.1% of budgetNEW ISRAEL FUND: $5,000 over 1y, 0.0% of budgetTHE FOUNDATION OF THE CITY COLLEGE OF SAN FRANCISCO: $3,000 over 1y, 0.1% of budgetEducation Outside: $2,500 over 2y, 0.1% of budgetKQED INC: $1,500 over 1y, 0.0% of budgetNATIONAL ABORTION FEDERATION: $1,057 over 1y, 3.9% of budgetTHE FOUNDATION FIGHTING BLINDNESS INC: $1,000 over 1y, 0.0% of budgetFOUNDATION FOR STUDENTS RISING ABOVE: $1,000 over 1y, 0.0% of budgetTHE MARFAN FOUNDATION INC: $1,000 over 1y, 0.0% of budgetHomeless Prenatal Program Inc: $1,000 over 1y, 0.0% of budgetPOSITIVE COACHING ALLIANCE: $1,000 over 1y, 0.0% of budgetSAN FRANCISCO FOOD BANK: $1,000 over 1y, 0.0% of budgetKEEP FISH WET INC: $1,000 over 1y, 1.4% of budgetTHE HAMLIN SCHOOL: $1,000 over 1y, 0.0% of budgetKATHERINE DELMAR BURKE SCHOOL: $1,000 over 1y, 0.0% of budgetMUSEUM OF PERFORMANCE AND DESIGN: $500 over 1y, 0.2% of budgetOUR CLIMATE: $500 over 1y, 3.1% of budgetMICHAEL HARRIS FOUNDATION: $500 over 1y, 0.5% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

  • Who funds UNIVERSITY OF CALIFORNIA SAN FRANCISCO FOUNDATION ↗
  • Who funds PUBLIC POLICY INSTITUTE OF CALIFORNIA ↗
  • Who funds THE NATURE CONSERVANCY ↗
  • Who funds TROUT UNLIMITED aka THE ARIZONA COUNCIL OF TROUT UNLIMITED INC ↗
  • Who funds THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY ↗
  • Who funds RESOURCES LEGACY FUND ↗
  • Who funds 10000 DEGREES ↗
  • Who funds THE BREAKTHROUGH COLLABORATIVE ↗
  • Who funds The Thacher School Inc ↗
  • Who funds HENRYS FORK FOUNDATION INC ↗
  • Who funds SUMMER SEARCH ↗
  • Who funds SWEETWATER SPECTRUM INC ↗
  • Who funds SAN FRANCISCO FRIENDS SCHOOL ↗
  • Who funds Sustainable Conservation ↗
  • Who funds SAN FRANCISCO JAZZ ORGANIZATION ↗
  • Who funds SILVER CREEK ALLIANCE INC ↗
  • Who funds GREENBELT ALLIANCEPEOPLE FOR OPEN SPACE ↗
  • Who funds THE TRUST FOR PUBLIC LAND ↗

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.

The San Francisco Fou…Jewish Community Fede…Marin Community Found…Silicon Valley Commun…Swig FoundationOberndorf Family Foun…Esb Charitable Founda…Laural FoundationIshiyama FoundationThe Griffith Family F…Robert and Dana Emery…The Stanley S Langend…
The San Francisco FoundationCA30× affinity14 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

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
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization Rosenberg Ach Foundation funds: left to right is the share of its income from government, bottom to top the share from Rosenberg Ach Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 20%5%19%42%75%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 49%
  • Wild Salmon Center: 49% of income from government
no gov moneyreceives it· size = income
2get no government money at all
4report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
typical government reliance, FY20–25
How this is measured
Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 82 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on Rosenberg Ach’s filings →

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home