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Sambold Foundation at a glance

· Private foundation

Sambold Foundation

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$12k
Granted FY2024still arriving
4
Grants FY2024still arriving
4
States reached
$8k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
0194% classified

What it funded, over time

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

Education$54kCrime & Legal$16kHealth$6kFood & Nutrition$2kCommunity Improvement$2kInternational$1kHousing & Shelter$1kAnimals$1kOther$0
02FY2024 · 4 grants

Where the money goes

Grants by size, and the largest recipients.

$2,500
Median grant
4
States reached
$390k
Total assets
Largest grants
RecipientAmount
WIKIMEDIA FOUNDATION INC$8,000
LONG NOW FOUNDATION$2,500
SECOND HARVEST FOODBANK OF THE MAHONING VALLEY$1,000
THE AMERICAN BREAST CANCER FOUNDATION INC$200
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 (FY20–24, $3k) land where the poverty rate runs at 8%, against an area that typically sits at 10%. 56% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%MARC LUSTGARTEN PANCREATIC CANCER FOUNDATION: $1k → 6%THE AMERICAN BREAST CANCER FOUNDATION INC: $200 → 6%MISSION EDGE SAN DIEGO: $2k → 11%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

IL
NY
NV
OH
CA
MD
DC
HI
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.

63%of every dollar goes to organizations it has funded before.
$56k · 4 repeat orgs$33k to everyone else

4 repeat relationships: 3 still active in FY2024, 1 since wound down; 1 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

4
15

Total granted

$56k
$33k

Median revenue growth · since first grant

+42%
+74%

Still filing today

100%
80%

New vs renewed · share of each year

In FY2024, 98% of grant dollars renewed an existing relationship; $200 went to new ones.

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

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

’17’18’19’20’21’22’23’24
Human ServicesEducationYouth DevelopmentHealthFood & NutritionAnimalsOther
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

  • WF
    WIKIMEDIA FOUNDATION INC
    6× · 2019–2024 · $40k · revenue +73%
  • TL
    THE LONG NOW FOUNDATION
    3× · 2021–2024 · $11k · revenue +2%
  • LJ
    LA JOLLA COUNTRY DAY SCHOOL
    2× · 2019–2020 · $4k · revenue +42%

Funded once

  • NC
    NATIONAL CONFLICT RESOLUTION CENTERgraduated
    one grant, 2017 · $10k · revenue +151%
  • IG
    Individual grant recipient
    one grant, 2020 · $5k
  • ET
    EMPOWER TEHAMA
    one grant, 2023 · $5k · revenue -20%
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
Robert a Toigo Foundation

Our mission is to shape the future of finance by developing leaders whose innovation, investment excellence, and human-centered leadership advance the industry and its adjacent sectors.

Education
2
Rainforest Trust

Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.

International
3
The Water Research Foundation

The purpose of the water research foundation (wrf) is a definitive research organization to advance the science of all things water to better meet the evolving needs of its subscribers and the water sector. to engage exclusively in…

Environment
4
The San Diego Foundation

The san diego foundation inspires enduring philanthropy and enables community solutions to improve the quality of life in our region.

Philanthropy
5
Santa Barbara Foundation

The mission of the santa barbara foundation (sbf) is to mobilize collective wisdom and philanthropic capital to build empathetic, inclusive and resilient communities.

Philanthropy
6
Biocom California

Accelerating life science success.

—
7
Internet Society Foundation

At the internet society foundation, we focus on funding initiatives that strengthen the internet in function and reach so that it can effectively serve all people. our work advances the vision of the internet society (isoc): the internet…

International
8
California Ocean Science Trust

California ocean science trust (ost) is a non-profit organization dedicated to accelerating progress towards a healthy and productive ocean future for california. created by state legislation, ost bridges the gap between cutting-edge…

Environment
9
Open Technology Fund

The open technology fund aims to advance internet freedom globally by supporting the research, development, implementation, and maintenance of technologies that provide secure and uncensored access to the internet.

Arts & Culture
10
International Aids Vaccine Initiative Inc

A nonprofit scientific research organization that develops vaccines and antibodies for hiv, tuberculosis, and emerging infectious diseases.

International
11
Open Transformation Lab Inc

The missions is to provide information and resources to counter disinformation, propaganda, and offer a window to trusted content about the events that are going on in the Middle East.

Science & Tech
12
The Breast Cancer Research Foundation Inc

The mission of the breast cancer research foundation, inc. is to prevent and cure breast cancer by advancing the world's most promising research.

Public Safety & Disaster
How this is measured
The grantee most central to the portfolio’s shape is Wikimedia Foundation Inc; the most unlike its peers is Baja Animal Sanctuary. 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

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

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 2025, not grant rows in a single year, so this will not match the grant count on the cover. 18 of the 21 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)
2
Early backer (in before they grew)
18/18
Grantees still filing
11/18
Grew since first funded

Where the money sits, by cause and then by grantee

WIKIMEDIA FOUNDATION INC: $39,808 · EducationWIKIMEDIA FOUNDATION INCTHE LONG NOW FOUNDATION: $10,500 · EducationTHE LONG NOW FOUNDATIONNATIONAL CONFLICT RESOLUTION CENTER: $10,000 · OtherNATIONAL CONFLICT RESOLUTION CENTE…Individual grant recipient: $5,200 · OtherIndividual grant recipientLA JOLLA COUNTRY DAY SCHOOL: $3,500 · OtherLA JOLLA COUNTRY DAY SCHOOLBeit T'Shuvah: $2,000 · OtherBeit T'ShuvahLAW LIBRARY JUSTICE FOUNDATION: $1,000 · OtherCENTER FOR GROWTH IN WHOLENESS: $1,000 · OtherKAUAI HABITAT FOR HUMANITY INC: $1,000 · OtherLIFE ROLLS ON FOUNDATION: $1,000 · OtherTHE ROTARY FOUNDATION OF ROTARY INTERNATIONAL: $1,000 · OtherOPPORTUNITY VILLAGE FOUNDATION: $1,000 · Other+1 more: $500 · OtherEMPOWER TEHAMA: $5,000 · Crime & LegalMISSION EDGE SAN DIEGO: $1,500 · Human ServicesASSOCIATION OF AMPUTEE SURFERS DBA AMP SURF: $1,000 · Human ServicesMARC LUSTGARTEN PANCREATIC CANCER FOUNDATION: $1,000 · Human ServicesAMERICAN BREAST CANCER FOUNDATION INC: $200 · Human ServicesSECOND HARVEST FOOD BANK OF THE MAHONING VALLEY: $2,000 · Food & NutritionBoys to Men Mentoring Network Inc: $1,000 · Youth DevelopmentBAJA ANIMAL SANCTUARY: $1,000 · Animals
Education$50,308Other$27,200Crime & Legal$5,000Human Services$3,700Food & Nutrition$2,000Youth Development$1,000Animals$1,000

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetWIKIMEDIA FOUNDATION INC: $39,808 over 6y, 0.0% of budgetTHE LONG NOW FOUNDATION: $10,500 over 3y, 0.1% of budgetEMPOWER TEHAMA: $5,000 over 1y, 0.1% of budgetLA JOLLA COUNTRY DAY SCHOOL: $3,500 over 2y, 0.0% of budgetBeit T'Shuvah: $2,000 over 1y, 0.0% of budgetSECOND HARVEST FOOD BANK OF THE MAHONING VALLEY: $2,000 over 2y, 0.0% of budgetMISSION EDGE SAN DIEGO: $1,500 over 1y, 0.0% of budgetBoys to Men Mentoring Network Inc: $1,000 over 1y, 0.1% of budgetASSOCIATION OF AMPUTEE SURFERS DBA AMP SURF: $1,000 over 1y, 0.3% of budgetMARC LUSTGARTEN PANCREATIC CANCER FOUNDATION: $1,000 over 1y, 0.0% of budgetCENTER FOR GROWTH IN WHOLENESS: $1,000 over 1y, 0.7% of budgetBAJA ANIMAL SANCTUARY: $1,000 over 1y, 0.2% of budgetKAUAI HABITAT FOR HUMANITY INC: $1,000 over 1y, 0.0% of budgetLIFE ROLLS ON FOUNDATION: $1,000 over 1y, 0.3% of budgetTHE ROTARY FOUNDATION OF ROTARY INTERNATIONAL: $1,000 over 1y, 0.0% of budgetOPPORTUNITY VILLAGE FOUNDATION: $1,000 over 1y, 0.0% of budgetAMERICAN BREAST CANCER FOUNDATION INC: $200 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.

Sempra FoundationJewish Community Foun…The San Diego Foundat…Enterprise Holdings F…Morgan Stanley Global…Charities Aid Foundat…The Pfizer Foundation…The Bank of America C…American Endowment Fo…The Blackbaud Giving …National Philanthropi…American Online Givin…
Sempra FoundationCA14.3× affinity5 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Sempra Foundation · Jewish Community Foundation of San Diego · The San Diego Foundation · Enterprise Holdings Foundation · Morgan Stanley Global Impact Funding Trust Inc · Charities Aid Foundation America · The Pfizer Foundation Inc · The Bank of America Charitable Foundation Inc · American Endowment Foundation · The Blackbaud Giving Fund · National Philanthropic Trust · American Online Giving Foundation Inc

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 Sambold Foundation funds: left to right is the share of its income from government, bottom to top the share from Sambold Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%0%1%3%5%funder's share of their income ↑0%13%25%38%50%share of the org’s income from government →
    no gov moneyreceives it· size = income
    1get no government money at all
    5report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–50%
    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 21 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 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Source object · view filing

    Play a game based on Sambold’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