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Plinth

· Private foundation

Walther 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.

$435k
Granted FY2025still arriving
16
Grants FY2025still arriving
4
States reached
$50k
Largest
01What you fund
0198% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20172025.

Education$1.9MYouth Development$725kPublic Safety & Disaster$300kHuman Services$298kPublic Benefit$240kEmployment$185kArts & Culture$168kHealth$75kOther$0
02FY2025 · 16 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2025

  • Under $10k2 grants · $10k
  • $10k–50k12 grants · $325k
  • $50k–250k2 grants · $100k
$35,000
Median grant
4
States reached
$269k
Total assets
Largest grants
RecipientAmount
US Coast Guard Alumni Association$50,000
KIPP Bay Area Schools$50,000
Life Learning Academy$40,000
826 Valencia$40,000
Mindful Life Project$40,000
SMART$35,000
Reading Partners$35,000
AIM High$35,000
Swords to Plowshares$30,000
Tides Foundation$25,000
San Francisco Symphony AIM Program$15,000
The Westminster School Foundation U$10,000
Blue Bear School of Music$10,000
San Francisco-Marin Food Bank$10,000
More Than Words$5,000
02The need
03

Do your dollars go where the need is?

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

show:

Your human-services grants (FY19–25, $305k) land where the poverty rate runs at 10%, against an area that typically sits at 8%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 8%On The Move: $20k → 9%AIM High: $50k → 10%AIM High: $50k → 10%AIM High: $50k → 10%AIM High: $50k → 10%AIM High: $50k → 10%AIM High: $35k → 10%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.

US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.

03Your edge
repeat funding

Who you back again

Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.

98%of every dollar goes to organizations you’ve funded before.
$4.0M · 31 repeat orgs$85k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +37% since the first grant, against 0% for the ones you funded once.

31 repeat relationships — 15 still active in FY2025, 16 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

31
7

Total granted

$4.0M
$85k

Median revenue growth · since first grant

+37%
0%

Still filing today

61%
100%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $0 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
EducationYouth DevelopmentRecreation & SportsArts & CultureHuman ServicesEmploymentOther

First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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

  • KB
    KIPP BAY AREA SCHOOLS
    8× · 2017–2025 · $370k · revenue +126%
  • AH
    AIM HIGH
    6× · 2019–2025 · $285k · revenue +103%
  • SM
    SCHOOLS MENTORING AND RESOURCES TEAM INC
    9× · 2017–2025 · $275k · revenue +66%

Funded once

  • OT
    ON THE MOVEgraduated
    one grant, 2019 · $20k · revenue +73%
  • SF
    San Francisco Education Fund
    one grant, 2017 · $20k · revenue -22%
  • SF
    SENECA FAMILY OF AGENCIESgraduated
    one grant, 2018 · $10k · revenue +80%

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

04Your field

The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.

1
The Peak School

The peak school seeks to ignite a passion for learning, to develop students of diverse talents and backgrounds who think critically and act with integrity, and to graduate compassionate, confident, capable students who will embrace their…

Education
2
Enterprise for Youth

Enterprise for youth empowers under-resourced san francisco youths to reach their potential through transformative paid internship experiences supported by a community of employers, caring adults, and peers.

Youth Development
3
The International School of San Francisco

Guided by the principles of academic rigor and diversity, the international school of san francisco offers programs of study in french and english to prepare its graduates for a world in which the ability to think critically and to…

Education
4
The San Francisco School

A private school that cultivates and celebrates the intellectual, imaginative, and humanitarian promise of each student in a community that practices mutual respect, embraces diversity, and inspires passion for learning.

5
Mark Day School

Innovative and full of heart, mark day school nurtures each child to pursue their curiosity, think critically, embrace challenge with courage and joy, and work in partnership with others to build more caring and inclusive communities.

6
Friends of the Children - San Francisco Bay Area

Impacting generational change by empowering youth who are facing the greatest obstacles through relationships with professional mentors - 12+ years, no matter what.

Education
7
Springboard Collaborative

Springboard collaborative combines targeted student instruction with parent training in an incentivized system that closes the literacy gap, by transferring the summer from a barrier into a springboard for financially disadvantaged…

Human Services
8
Silicon Valley Education Foundation

Who we are - silicon valley education foundation (svef) focuses on raising student performance in the critical areas of math and science across all 33 santa clara county school districts, and also adjoining san mateo and alameda counties.…

Community Improvement
9
Presidio Hill School

Presidio hill school is a co-ed k-8 independent, progressive school. learning is collaborative and an active experience with an emphasis on inquiry. students are engaged in their own learning and guided by an expert faculty through a…

Education
10
Institute for Applied Tinkering

Institute for Applied Tinkering IAT develops, practices and shares educational methods that challenge and support all children to engage deeply in their learning via real interests and real tools.

Youth Development
11
Parents for Public Schools of San Francisco

PPS-SF's mission is to promote the fundamental value of public education and pursue the success of every public school by sharing knowledge, bridging communities, and informing policy.

12
Millennium School of San Francisco

See schedule oto realize the transformative potential of middle school. millennium school believes in developing each student to their fullest potential, this involves providing both a rigorous academic program and a science-based…

Education

For reference, the grantee most central to the portfolio’s shape is Schools Mentoring and Resources Team Inc (Smart) and the most unlike its peers is Aim High. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

Your grantees are a median of 25 years old; the field is 17. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number21%4%<5yr14%0%5–10yr19%23%10–20yr19%46%20–35yr13%15%35–55yr13%12%55yr+
THE FIELDby orgYOUR MONEYby value21%9%<5yr14%0%5–10yr19%22%10–20yr19%63%20–35yr13%5%35–55yr13%1%55yr+

The field is 21% startups (under 5 years old) — 4% of your grantees by number, and just 9% of your money.

Closures · last 5 years

The orgs you fund almost never close 0.0% lost their exemption, against 12% of the field you don’t fund.

orgs you fund
0.0%0/28
the rest of the field
12%
3,142/27,252

Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.

04the grantee network

28 grantees tracked through their own filings, 2017–2025.

Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.

Counted here: distinct organizations you funded across 20172025, not grant rows in a single year — so this will not match the grant count on the cover. 28 of the 39 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.

0
Load-bearing (≥25% of a budget)
5
Early backer (in before they grew)
27/28
Grantees still filing
20/28
Grew since you first funded

Where your money sits — by cause, then by grantee

KIPP BAY AREA SCHOOLS — $370,000 · EducationKIPP BAY AREA SCHOOLSSCHOOLS MENTORING AND RESOURCES TEAM INC (SMART) — $275,000 · EducationSCHOOLS MENTORING AND RESOURCES TEAM INC (SMART…826 Valencia — $255,000 · Education826 ValenciaREADING PARTNERS — $255,000 · EducationREADING PARTNERSLife Learning Academy — $240,000 · EducationLife Learning AcademyYEAR UP INC — $185,000 · EducationYEAR UP INCJUMPSTART FOR YOUNG CHILDREN INC — $75,000 · Education+3 more — $100,000 · Education+3 moreSwords to Plowshares — $240,000 · OtherSwords to PlowsharesONE PURPOSE SCHOOL INC — $200,000 · OtherONE PURPOSE SCHOOL INCUS Coast Guard Alumni Association — $200,000 · OtherUS Coast Guard Alumni AssociationMillenniumorg — $155,530 · OtherMillenniumorgUS Coast Guard Academy — $100,000 · OtherUS Coast Guard AcademySan Francisco Symphony AIM Program — $95,000 · OtherSan Francisco Symphony AIM Progra…Breakthrough San Francisco — $45,000 · Other+9 more — $196,350 · Other+9 moreMindful Life Project — $150,000 · Youth DevelopmentMindful L…FIRST GRADUATE — $100,000 · Youth DevelopmentFIRST GRA…PEER HEALTH EXCHANGE INC — $75,000 · Youth DevelopmentPEER HEAL…+2 more — $20,000 · Youth Development+2 moreAIM HIGH — $285,000 · Human ServicesON THE MOVE — $20,000 · Human ServicesJUMA VENTURES INC — $215,000 · EmploymentOUTWARD BOUND CALIFORNIA — $200,000 · Recreation & Sports+1 more — $5,000 · Recreation & SportsBLUE BEAR SCHOOL of MUSIC — $62,500 · Arts & CultureSAN FRANCISCO SYMPHONY — $10,000 · Arts & CultureTIDES FOUNDATION — $50,000 · Philanthropy
Education$1,755,000Other$1,231,880Youth Development$345,000Human Services$305,000Employment$215,000Recreation & Sports$205,000Arts & Culture$72,500Philanthropy$50,000

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ your share of their budgetKIPP BAY AREA SCHOOLS — $370,000 over 8y, 0.1% of budgetAIM HIGH — $285,000 over 6y, 11% of budgetSCHOOLS MENTORING AND RESOURCES TEAM INC (SMART) — $275,000 over 9y, 1.6% of budget826 Valencia — $255,000 over 9y, 0.7% of budgetREADING PARTNERS — $255,000 over 9y, 0.1% of budgetLife Learning Academy — $240,000 over 8y, 0.9% of budgetJUMA VENTURES INC — $215,000 over 8y, 0.5% of budgetOUTWARD BOUND CALIFORNIA — $200,000 over 7y, 0.9% of budgetONE PURPOSE SCHOOL INC — $200,000 over 4y, 2.4% of budgetYEAR UP INC — $185,000 over 7y, 0.0% of budgetMindful Life Project — $150,000 over 5y, 0.9% of budgetFIRST GRADUATE — $100,000 over 4y, 1.7% of budgetJUMPSTART FOR YOUNG CHILDREN INC — $75,000 over 3y, 0.1% of budgetPEER HEALTH EXCHANGE INC — $75,000 over 3y, 0.4% of budgetBLUE BEAR SCHOOL of MUSIC — $62,500 over 8y, 0.7% of budgetTIDES FOUNDATION — $50,000 over 2y, 0.0% of budgetMORE THAN WORDS INC — $40,000 over 8y, 0.1% of budgetTHE WESTMINSTER SCHOOL FOUNDATION — $40,000 over 4y, 6.2% of budgetTHE EPIPHANY SCHOOL INC — $40,000 over 8y, 0.1% of budgetSAN FRANCISCO FOOD BANK — $25,000 over 4y, 0.0% of budgetON THE MOVE — $20,000 over 1y, 0.4% of budgetSan Francisco Education Fund — $20,000 over 1y, 0.4% of budgetBeyond Differences — $15,000 over 3y, 0.3% of budgetSENECA FAMILY OF AGENCIES — $10,000 over 1y, 0.0% of budgetSAN FRANCISCO SYMPHONY — $10,000 over 1y, 0.0% of budgetProject Wreckless — $10,000 over 1y, 4.8% of budgetSAN FRANCISCO PARKS ALLIANCE — $5,000 over 1y, 0.1% of budget
Go grantee by grantee — a decade per org, and how each moved after you funded them

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

  • Who funds KIPP BAY AREA SCHOOLS
  • Who funds AIM HIGH
  • Who funds SCHOOLS MENTORING AND RESOURCES TEAM INC (SMART)
  • Who funds 826 Valencia
  • Who funds READING PARTNERS
  • Who funds Life Learning Academy
  • Who funds JUMA VENTURES INC
  • Who funds OUTWARD BOUND CALIFORNIA
  • Who funds ONE PURPOSE SCHOOL INC
  • Who funds YEAR UP INC
  • Who funds Mindful Life Project
  • Who funds FIRST GRADUATE
  • Who funds JUMPSTART FOR YOUNG CHILDREN INC
  • Who funds PEER HEALTH EXCHANGE INC
  • Who funds BLUE BEAR SCHOOL of MUSIC
  • Who funds TIDES FOUNDATION
  • Who funds MORE THAN WORDS INC
  • Who funds THE WESTMINSTER SCHOOL FOUNDATION
  • Who funds THE EPIPHANY SCHOOL INC
  • Who funds SAN FRANCISCO FOOD BANK
  • Who funds ON THE MOVE
  • Who funds San Francisco Education Fund
  • Who funds Beyond Differences
  • Who funds SENECA FAMILY OF AGENCIES
  • Who funds SAN FRANCISCO SYMPHONY
  • Who funds YOUNG VETERANS INC
  • Who funds Project Wreckless
  • Who funds SAN FRANCISCO PARKS ALLIANCE

The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.

The San Francisco FoundationCA23.7× affinity10 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 · Robert and Dana Emery Family Foundation Rockefeller Trust Company · Golden State Community Foundation · Quest Foundation · Tipping Point Community · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · The James Irvine Foundation · Lisa Stone Pritzker Family Fund · Wendell Family Foundation

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

Government reliance of your grantees

Every dot is one organization Walther Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.

2024
202122232425
no gov · 00%1%4%8%15%your share of their income ↑0%15%30%45%60%share of the org’s income from governmentmedian 0%
  • More Than Words Inc24% of income from government
  • Year Up Inc0% of income from government
  • The Epiphany School Inc0% of income from government
no gov moneyreceives it· size = income
0get no government money at all
13report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–60%
typical government reliance, FY2025

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 your grant caused the public funding. Coverage is precision-first — a floor, not 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 12–24 months.

On method. Every financial figure here is read directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 39 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your 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. How we build these →

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

Source object · view filing

More from the funding graph