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Bosse Foundation at a glance

· Private foundation

Bosse 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.

$24k
Granted FY2025still arriving
7
Grants FY2025still arriving
2
States reached
$12k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0198% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Public Benefit$836kHealth$601kRecreation & Sports$111kYouth Development$44kArts & Culture$21kHuman Services$20kFood & Nutrition$800Community Improvement$500Other$0
02FY2025 · 7 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k6 grants · $12k
  • $10k–50k1 grant · $12k
$500
Median grant
2
States reached
$13k
Total assets
Largest grants
RecipientAmount
THE RONALD REAGAN PRESIDENTIAL LIBRARY & MUSEUM$12,000
SENIOR CONCERNS$5,900
BOYS AND GIRLS CLUB OF GREATER CONEJO VALLEY$4,700
UCP OF LOS ANGELES VENTURA & SANTA BARBARA$500
FOODBANK OF SANTA BARBARA COUNTRY$300
RESTLESS LEGS SYNDROME FOUNDATION$100
UNCLE KORY FOUNDATION$100
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, $20k) land where the poverty rate runs at 10%, against an area that typically sits at 11%. 10% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 11%THE WOUNDED WARRIOR PROJECT INC: $1k → 14%THE WOUNDED WARRIOR PROJECT INC: $1k → 14%SENIOR CONCERNS: $10k → 10%SENIOR CONCERNS: $6k → 10%CONEJO VALLEY SENIOR CONCERNS: $1k → 10%CONEJO VALLEY SENIOR CONCERNS: $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.

93%of every dollar goes to organizations it has funded before.
$1.5M · 10 repeat orgs$110k to everyone else

10 repeat relationships: 2 still active in FY2025, 8 since wound down; 5 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

10
7

Total granted

$1.5M
$97k

Median revenue growth · since first grant

+12%
+34%

Still filing today

80%
86%

New vs renewed · share of each year

In FY2025, 45% of grant dollars renewed an existing relationship; $13k 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
HealthEducationHuman ServicesArts & CultureYouth DevelopmentFood & NutritionOther
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

  • TR
    THE RONALD REAGAN PRESIDENTIAL FOUNDATION AND INSTITUTE
    5× · 2018–2022 · $836k · revenue +2%
  • CV
    CONEJO VALLEY SENIOR CONCERNS INC
    4× · 2018–2025 · $18k · revenue +12%
  • WOUNDED WARRIOR PROJECT INC
    2× · 2021–2022 · $2k · revenue +27%

Funded once

  • SB
    Santa Barbara Cottage Hospital
    one grant, 2021 · $87k · revenue +17%
  • TC
    TRAIN COLLECTORS ASSOCIATION
    one grant, 2020 · $5k · revenue -10%
  • SB
    SANTA BARBARA CLUB PRESERVATION FOUNDATIONgraduated
    one grant, 2022 · $3k · revenue +42%
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
Memorial Sloan-Kettering Cancer Center

Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.

Health
2
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
3
The Susan G Komen Breast Cancer Foundation Inc

Susan g. komen has an unmatched, comprehensive 360-degree approach to fighting breast cancer across all fronts and supporting millions of people in the u.s. and in countries worldwide. we advocate for policies to protect patients, drive…

Health
4
San Francisco Food Bank

To end hunger in san francisco and marin counties by soliciting food donations nationally, distributing this food to qualifying public service agencies and neighborhood pantries, advocating for improved government food programs, and…

—
5
Los Angeles Regional Food Bank

The organization's mission is to mobilize resources to fight hunger in our community. to fulfill its mission, the food bank:* sources and acquires nutritious food and other products and distribute them to people experiencing nutrition…

—
6
The Susan G Komen Breast Cancer Fdn Group

Susan g. komen 's mission is to save lives by meeting the most critical needs in our communities & investing in breakthrough research to prevent & cure breast cancer.

—
7
Sutter Bay Medical Foundation

Mission statement: mission: caring for our patients first and our people always. vision: to be the most comprehensive, integrated and connected health system for getting and staying well. values: excellence - we deliver high-quality,…

Health
8
Organic Soup Kitchen

Our mission is to provide metabolic oncology nutrition to support the health of seniors, cancer patients and chronically ill individuals.

Food & Nutrition
9
Rancho Santa Ana Botanic Garden

Rancho santa ana botanic gardens promotes botany, conservation, and horticulture to inspire, inform and educate the public and scientific community about california's native flora. the garden is devoted to the collection, cultivation,…

Environment
10
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
11
Cancer Research and Biostatistics

To help conquer cancer and other diseases through the application of biostatistical principles and innovative data management methods.

Health
12
Cystic Fibrosis Foundation

To cure cf and provide all people with cf the opportunity to lead long, fulfilling lives by funding research and drug development, partnering with the cf community, and advancing high-quality, specialized care.

Health
How this is measured
The grantee most central to the portfolio’s shape is Wounded Warrior Project Inc; the most unlike its peers is Uncle Kory 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

17 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. 17 of the 22 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)
1
Early backer (in before they grew)
17/17
Grantees still filing
10/17
Grew since first funded

Where the money sits, by cause and then by grantee

THE RONALD REAGAN PRESIDENTIAL FOUNDATION AND INSTITUTE: $836,000 · EducationTHE RONALD REAGAN PRESIDENTIAL FOUNDATION AND INSTITUTE+1 more: $2,000 · EducationCANCER FOUNDATION OF SANTA BARBARA: $507,998 · HealthCANCER FOUNDATION OF SANTA BARBARASanta Barbara Cottage Hospital: $86,687 · HealthSanta Barbara Cottage Hospital+2 more: $1,100 · HealthWESTLAKE NAUTICAL FOUNDATION: $110,731 · OtherTHE RONALD REAGAN PRESIDENTIAL LIBRARY & MUSEUM: $12,000 · Other+7 more: $5,300 · OtherBoys & Girls Club of Greater Conejo Valley Inc: $43,400 · Youth Development+1 more: $500 · Youth DevelopmentCONEJO VALLEY SENIOR CONCERNS INC: $17,900 · Human ServicesWOUNDED WARRIOR PROJECT INC: $2,000 · Human ServicesTRAIN COLLECTORS ASSOCIATION: $5,000 · Recreation & SportsSANTA BARBARA CLUB PRESERVATION FOUNDATION: $3,000 · Arts & CultureNEW WEST SYMPHONY ASSOCIATION: $1,100 · Arts & Culture
Education$838,000Health$595,785Other$128,031Youth Development$43,900Human Services$19,900Recreation & Sports$5,000Arts & Culture$4,100

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 budgetTHE RONALD REAGAN PRESIDENTIAL FOUNDATION AND INSTITUTE: $836,000 over 5y, 0.7% of budgetCANCER FOUNDATION OF SANTA BARBARA: $507,998 over 3y, 2.3% of budgetSanta Barbara Cottage Hospital: $86,687 over 1y, 0.0% of budgetBoys & Girls Club of Greater Conejo Valley Inc: $43,400 over 7y, 0.3% of budgetCONEJO VALLEY SENIOR CONCERNS INC: $17,900 over 4y, 0.4% of budgetTRAIN COLLECTORS ASSOCIATION: $5,000 over 1y, 0.3% of budgetSANTA BARBARA CLUB PRESERVATION FOUNDATION: $3,000 over 1y, 2.7% of budgetWOUNDED WARRIOR PROJECT INC: $2,000 over 2y, 0.0% of budgetRIBBONS OF LIFE BREAST CANCER: $2,000 over 4y, 2.6% of budgetNEW WEST SYMPHONY ASSOCIATION: $1,100 over 2y, 0.0% of budgetAMERICAN FOUNDATION FOR SUICIDE PREVENTION: $1,000 over 2y, 0.0% of budgetMAUI FOOD BANK INC: $500 over 1y, 0.0% of budgetPOLICE ATHLETIC LEAGUE INC: $500 over 1y, 0.0% of budgetFoodbank of Santa Barbara County Inc: $300 over 1y, 0.0% of budgetMANY MANSIONS: $100 over 1y, 0.0% of budgetUNCLE KORY FOUNDATION: $100 over 1y, 0.0% of budgetRESTLESS LEGS SYNDROME 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.

Sherwood Country Club…The Wood-Claeyssens F…Ventura County Commun…Charities Aid Foundat…The Bank of America C…National Philanthropi…Morgan Stanley Global…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
Sherwood Country Club Charitable FoundationCA13.6× affinity4 shared granteesties to 9 of 9Hover any node to trace its alignments.Compare side by side →

Open a dossier: Sherwood Country Club Charitable Foundation · The Wood-Claeyssens Foundation · Ventura County Community Foundation · Charities Aid Foundation America · The Bank of America Charitable Foundation Inc · National Philanthropic Trust · Morgan Stanley Global Impact Funding Trust Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile 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 Bosse Foundation funds: left to right is the share of its income from government, bottom to top the share from Bosse Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%0%1%3%5%funder's share of their income ↑0%13%25%38%50%share of the org’s income from government →median 0%
  • Wounded Warrior Project Inc: 0% of income from government
no gov moneyreceives it· size = income
0get 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
⤢ 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.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to Bosse Foundation?

Find your warmest path to Bosse 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 22 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 Bosse’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