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10129 Foundation at a glance

· Private foundation

10129 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.

$138k
Granted FY2025still arriving
22
Grants FY2025still arriving
2
States reached
$25k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2019 to 2024.

Arts & Culture$324kEnvironment$24kEducation$20kPhilanthropy$17kHealth$17kHousing & Shelter$12kCommunity Improvement$5kHuman Services$4kOther$0
02FY2025 · 22 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k17 grants · $46k
  • $10k–50k5 grants · $92k
$3,377
Median grant
2
States reached
$844k
Total assets
Largest grants
RecipientAmount
Individual grant recipient$25,000
SAN FRANCISCO ARTS COMMISION$25,000
OPEN TAI CHI FOUNDATION$15,246
CONJUNCATION ARTS$13,817
BROWN GROTTA ARTS$12,660
THE BATTERY FOUNDATION$7,200
CAST$5,725
ARTCENTER COLLEGE OF DESIGN$5,000
MUSEUM OF CRAFT AND DESIGN$5,000
SFMOMA$3,500
ROOT DIVISION$3,377
BANDALOOP$3,200
OPEN TAI CHI FOUNDATION$3,150
TENDERLOIN MUSEUM$3,000
THE BATTERY FOUNDATION$2,800
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 (FY21–23, $5k) land where the poverty rate runs at 10%, against an area that typically sits at 10%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%BAY AREA WOMEN'S AND CHILDRENS CENTER: $1k → 10%SELF HELP FOR THE ELDERLY: $2k → 10%AT THE CROSSROADS: $1k → 10%AT THE CROSSROAD: $1k → 10%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.
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.

60%of every dollar goes to organizations it has funded before.
$335k · 17 repeat orgs$227k to everyone else

Grantees it renews have grown median revenue +5% since the first grant, against 0% for those funded once.

17 repeat relationships: 9 still active in FY2025, 8 since wound down; 11 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

17
23

Total granted

$335k
$137k

Median revenue growth · since first grant

+5%
0%

Still filing today

100%
74%

New vs renewed · share of each year

In FY2025, 34% of grant dollars renewed an existing relationship; $90k went to new ones.

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

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

’19’20’21’22’23’24’25
Arts & CultureEducationHuman ServicesHealthSocial SciencePhilanthropyOther
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

  • RD
    Root Division
    3× · 2023–2025 · $30k · revenue +10%
  • GI
    GRABHORN INSTITUTE
    3× · 2021–2024 · $11k · revenue +154%
  • AC
    ART CENTER COLLEGE OF DESIGN
    2× · 2024–2025 · $10k · revenue +18%

Funded once

  • WM
    WORLD MONUMENTS FUND INCgraduated
    one grant, 2023 · $50k · revenue +78%
  • AA
    ALZHEIMER'S ASSOCIATION
    one grant, 2019 · $15k
  • 5C
    509 CULTURAL CENTER
    one grant, 2021 · $12k · revenue -87%
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
Art Foundation
Arts & Culture
2
San Francisco Art Studio Foundation
—
3
San Francisco Filipino Cultural Center
Arts & Culture
4
California Institute of Contemporary Art
—
5
Oakland Museum of California

The museum's mission is to inspire all californians to create a more vibrant future for themselves and their communities. through collections, exhibitions, education programs, and public dialogue, we inspire people of all ages and…

Arts & Culture
6
San Francisco Challenge dba AmericaOne
Recreation & Sports
7
San Francisco Camerawork Inc

SF Camerawork provokes discovery, experimentation, and exchange through exhibitions and experiences for all who value new ideas in photography.

Arts & Culture
8
The Lab Sf

The lab gives significant funding, time, and space to traditionally underrepresented artists. we seek to transform alongside artistic practices in order to engage meaningfully with visionary communities whose economic and cultural…

—
9
San Francisco City Guides

Since 1978, our mission has been to preserve and perpetuate San Francisco's history and folklore and to celebrate its rich history of cultural diversity.

Human Services
10
San Francisco High School of the Arts

San Francisco Arts and Science Academy (ASA) provides TK5 grade students with a strong foundation in the arts, language, math, and science, fostering creativity, curiosity, and character development. Our bilingual, hands-on curriculum…

Education
11
Asian Art Museum Foundation of San Francisco

The asian art museum celebrates, preserves, and promotes asian and asian american art and cultures for local and global audiences. we provide a dynamic forum for exchanging ideas, inviting collaboration, and fueling imagination to deepen…

Arts & Culture
12
The Z Space Studio

Operating out of an old can factory in the Mission District of San Francisco, Z Space now activates two performance spaces, an 85-seat black box and a 244-seat main stage, with a warehouse aesthetic and an adventurous edge.

Arts & Culture
How this is measured
The grantee most central to the portfolio’s shape is Uptown Tenderloin Inc; the most unlike its peers is Thomas & Eva Fong Foundation. 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

37 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. 37 of the 51 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.

0
Load-bearing (≥25% of a budget)
4
Early backer (in before they grew)
37/37
Grantees still filing
17/37
Grew since first funded

Where the money sits, by cause and then by grantee

Museum of Craft and Design: $85,093 · Arts & CultureMuseum of Craft and DesignWORLD MONUMENTS FUND INC: $50,000 · Arts & CultureWORLD MONUMENTS FUND INCRoot Division: $29,715 · Arts & CultureRoot Division509 CULTURAL CENTER: $12,000 · Arts & Culture509 CULTURAL CENTERGRABHORN INSTITUTE: $10,800 · Arts & Culture+8 more: $18,350 · Arts & Culture+8 moreSAN FRANCISCO ARTS COMMISION: $25,000 · OtherSAN FRANCISCO ARTS COMMISIONIndividual grant recipient: $25,000 · OtherIndividual grant recipientWildflowers Institute: $23,550 · OtherWildflowers InstituteALZHEIMER'S ASSOCIATION: $15,000 · OtherALZHEIMER'S ASSOCIATIONCONJUNCATION ARTS: $13,817 · OtherCONJUNCATION ARTSBROWN GROTTA ARTS: $12,660 · OtherBROWN GROTTA ARTSGay Lesbian Bisexual Transgender Historical Society: $10,000 · OtherGay Lesbian Bisexual Transgender Hi…Dance Brigade: $6,000 · Other+19 more: $44,747 · Other+19 moreGLOBAL HERITAGE FUND: $101,200 · Social ScienceGLOBAL HERITAGE FUNDOpen Tai Chi Foundation: $28,712 · EducationART CENTER COLLEGE OF DESIGN: $10,000 · Education826 Valencia: $2,500 · Education+2 more: $2,000 · EducationTHE BATTERY FOUNDATION: $26,000 · PhilanthropyAT THE CROSSROADS: $2,000 · Human ServicesSELF-HELP FOR THE ELDERLY: $2,000 · Human ServicesBay Area Womens and Childrens Center: $1,000 · Human ServicesSan Francisco Housing Action Coalition: $4,500 · Housing & Shelter
Arts & Culture$205,958Other$175,774Social Science$101,200Education$43,212Philanthropy$26,000Human Services$5,000Housing & Shelter$4,500

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 budgetGLOBAL HERITAGE FUND: $101,200 over 3y, 6.2% of budgetMuseum of Craft and Design: $85,093 over 6y, 0.8% of budgetWORLD MONUMENTS FUND INC: $50,000 over 1y, 0.3% of budgetRoot Division: $29,715 over 3y, 2.4% of budgetOpen Tai Chi Foundation: $28,712 over 3y, 4.4% of budgetTHE BATTERY FOUNDATION: $26,000 over 5y, 0.1% of budgetWildflowers Institute: $23,550 over 5y, 3.3% of budget509 CULTURAL CENTER: $12,000 over 1y, 1.7% of budgetGRABHORN INSTITUTE: $10,800 over 3y, 0.4% of budgetART CENTER COLLEGE OF DESIGN: $10,000 over 2y, 0.0% of budgetGay Lesbian Bisexual Transgender Historical Society: $10,000 over 1y, 0.3% of budgetDance Brigade: $6,000 over 1y, 0.3% of budgetSAN FRANCISCO MUSEUM OF MODERN ART: $6,000 over 2y, 0.0% of budgetSAN FRANCISCO ART INSTITUTE: $5,000 over 1y, 0.1% of budgetSan Francisco Housing Action Coalition: $4,500 over 1y, 0.7% of budgetProject Bandaloop: $3,200 over 1y, 0.2% of budgetUPTOWN TENDERLOIN INC: $3,000 over 1y, 0.4% of budgetWomens Audio Mission: $2,522 over 1y, 0.1% of budgetFORT MASON CENTER: $2,500 over 3y, 0.0% of budget826 Valencia: $2,500 over 1y, 0.1% of budgetSOUTHEAST ASIAN DEVELOPMENT CENTER: $2,000 over 2y, 0.1% of budgetAT THE CROSSROADS: $2,000 over 2y, 0.1% of budgetSELF-HELP FOR THE ELDERLY: $2,000 over 1y, 0.0% of budgetKQED INC: $1,650 over 3y, 0.0% of budgetCutting Ball Theater: $1,500 over 3y, 0.1% of budgetCounterPulse: $1,500 over 2y, 0.1% of budgetPACIFIC VISION FOUNDATION: $1,500 over 2y, 0.1% of budgetWORLD CENTRAL KITCHEN INC: $1,000 over 1y, 0.0% of budgetBay Area Womens and Childrens Center: $1,000 over 1y, 0.4% of budgetTHOMAS & EVA FONG FOUNDATION: $1,000 over 1y, 0.6% of budgetTHE LONG NOW FOUNDATION: $1,000 over 1y, 0.0% of budgetSAN FRANCISCO JAZZ ORGANIZATION: $1,000 over 2y, 0.0% of budgetHEADLANDS CENTER FOR THE ARTS: $1,000 over 1y, 0.0% of budgetPROJECT COLOR CORPS: $1,000 over 1y, 1.0% of budgetMAGIC THEATRE INC: $1,000 over 1y, 0.1% of budgetNOVA12SF: $200 over 1y, 0.3% of budgetSANDY HOOK PROMISE FOUNDATION: $100 over 1y, 0.0% 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.

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…Marin Community Found…Jewish Community Fede…Walter and Elise Haas…The William & Flora H…Phyllis C Wattis Foun…The Zellerbach Family…Kenneth Rainin Founda…Silicon Valley Commun…Fleishhacker Foundati…Koret FoundationMcNabb Foundation
The San Francisco FoundationCA27.5× affinity13 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The San Francisco Foundation · Marin Community Foundation · Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma · Walter and Elise Haas Fund · The William & Flora Hewlett Foundation · Phyllis C Wattis Foundation · The Zellerbach Family Foundation · Kenneth Rainin Foundation · Silicon Valley Community Foundation · Fleishhacker Foundation · Koret Foundation · McNabb 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 10129 Foundation funds: left to right is the share of its income from government, bottom to top the share from 10129 Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%1%3%6%10%funder's share of their income ↑0%5%10%15%20%share of the org’s income from government →median 0%
  • Sandy Hook Promise Foundation: 0% of income from government
no gov moneyreceives it· size = income
0get no government money at all
10report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–20%
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.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to 10129 Foundation?

Find your warmest path to 10129 Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

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 51 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 10129’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