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Plinth

· Private foundation

William David Sommerville 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.

$125k
Granted FY2025still arriving
13
Grants FY2025still arriving
1
States reached
$10k
Largest
01What you fund
01100% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20232025.

Youth Development$45kHuman Services$45kHousing & Shelter$33kHealth$29kFood & Nutrition$16kPublic Benefit$16kAnimals$9kEducation$1kOther$0
02FY2025 · 13 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2025

  • Under $10k1 grant · $5k
  • $10k–50k12 grants · $120k
$10,000
Median grant
1
States reached
$237k
Total assets
Largest grants
RecipientAmount
MAKE-A-WISH FOUNDATION$10,000
BOYS GIRLS CLUB OF LAGUNA BEACH$10,000
LAGUNA BEACH FRIENDSHIP SHELTER$10,000
LAGUNA BEACH FOOD PANTRY$10,000
CHOC$10,000
GOOD DEEDS FOR BLAKE$10,000
SALLY'S FUND$10,000
ORANGE COUNTY RESCUE MISSION$10,000
SAINT JUDES HOSPITAL$10,000
ORANGEWOOD FOUNDATION$10,000
GRACE SCIENCE FOUNDATION$10,000
RONALD McDONALD HOUSE CHARITIES$10,000
PACIFIC MARINE MAMMAL CENTER$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 (FY23–25, $16k) 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%SALLY'S FUND: $10k → 10%SALLY'S FUND: $5k → 10%SALLY'S FUND: $1k → 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.

92%of every dollar goes to organizations you’ve funded before.
$178k · 12 repeat orgs$16k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +2% since the first grant, against +1% for the ones you funded once.

12 repeat relationships — 12 still active in FY2025, 0 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

12
4

Total granted

$178k
$6k

Median revenue growth · since first grant

+2%
+1%

Still filing today

50%
50%

New vs renewed · share of each year

In FY2025, 92% of grant dollars renewed an existing relationship; $10k went to new ones.

50%100%’23’24’25
RenewedFirst-time

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

’23’24’25
Housing & ShelterYouth DevelopmentHuman ServicesCrime & LegalHealthAnimalsOther

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

  • BG
    BOYS & GIRLS CLUB OF LAGUNA BEACH
    3× · 2023–2025 · $16k · revenue +2%
  • OF
    ORANGEWOOD FOUNDATION
    3× · 2023–2025 · $16k · revenue +55%
  • GS
    GRACE SCIENCE FOUNDATION
    3× · 2023–2025 · $16k · revenue +14%

Funded once

  • SJ
    SAINT JUDE HOSPITAL
    one grant, 2024 · $3k
  • TS
    THE SURFRIDER FOUNDATION
    one grant, 2023 · $1k · revenue +1%
  • GH
    GLENNWOOD HOUSING FOUNDATION INC
    one grant, 2023 · $1k · revenue -4%

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
Save Oceanside Sand

Save Oceanside Sand is a group of local activists dedicated to restoring and preserving the beaches of Oceanside, California. Working with local, regional, state, and federal authorities, our mission is to protect this vital resource by…

Education
2
Laurel House Inc dba Hope Harbor

The mission of Laurel House (dba Hope Harbor) is providing a home for teens in crisis, transforming lives, and strengthening families. Laurel House has the only long-term youth shelters in Orange County, CA for runaway, homeless and…

3
Orange County Coastkeeper

Orange County Coastkeeper OCCK is a California non-profit public benefit organization dedicated to the protection and preservation of California marine habitats and watersheds through programs of education, advocacy, restoration, and…

Environment
4
Save the Sea Turtles International Dba One Ocean Conservation

We empower communities around the globe to protect sea turtles, corals, sharks, and the vital marine species and ecosystems they call home through hands-on conservation, education, and sustainable solutions. our team leads reef and beach…

Animals
5
The Ocean Foundation

As the only community foundation for the ocean, The Ocean Foundation's 501(c)(3) mission is to improve global ocean health, climate resilience, and the blue economy. We create partnerships to connect people in the communities in which we…

Environment
6
Long Beach Rescue Mission Foundation

To operate exclusively for the benefit of long beach rescue mission, a california nonprofit corporation, and other organizations that are closely related in purpose or function to long beach rescue mission and which are publicly supported…

Human Services
7
Long Beach Rescue Mission

Provide temporary housing, clothing, counseling services, food and financial assistance for homeless individuals.

Housing & Shelter
8
Laguna Beach Community Clinic

The mission of laguna beach community clinic (lbcc) is to provide excellent medical care regardless of the patient's ability to pay.

Health
9
South Shore Association for Independent Living Inc

Operate residences in the community that provide rehabilitation, clinical treatment and support services for mentally ill adults and their families.

Human Services
10
Northcoast Marine Mammal Center

The northcoast marine mammal centers (nmmc) mission is to promote the long-term health of marine mammals along approximately two hundred miles of remote coastline in humboldt and del norte counties in northern california. the nmmc does…

Animals
11
National Marine Mammal Foundation Inc

The nmmf's mission is to improve and protect life for marine mammals, humans, and our shared oceans through science, service, and education. our vision is to be the leading laboratory in marine mammal science, where critical questions…

Animals
12
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

For reference, the grantee most central to the portfolio’s shape is Orangewood Foundation and the most unlike its peers is Grace Science 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

8 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. 8 of the 17 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)
0
Early backer (in before they grew)
8/8
Grantees still filing
4/8
Grew since you first funded

Where your money sits — by cause, then by grantee

CHOC — $16,000 · OtherCHOCLAGUNA BEACH FOOD PANTRY — $16,000 · OtherLAGUNA BEACH FOOD PANTRYGOOD DEEDS FORBLAKE — $16,000 · OtherGOOD DEEDS FORBLAKELAGUNA BEACH FRIENDSHIP SHELTER — $16,000 · OtherLAGUNA BEACH FRIENDSHIP SHELTERMAKE-A-WISH FOUNDATION — $12,500 · OtherMAKE-A-WISH FOUNDATIONRONALD McDONALD HOUSE CHARITIES — $12,500 · OtherRONALD McDONALD HOUSE CHARITIESSAINT JUDES HOSPITAL — $10,000 · OtherSAINT JUDES HOSPITAL+2 more — $3,500 · OtherOrange County Rescue Mission Inc — $16,000 · Housing & ShelterOrange Co…GLENNWOOD HOUSING FOUNDATION INC — $1,000 · Housing & ShelterGLENNWOOD…BOYS & GIRLS CLUB OF LAGUNA BEACH — $16,000 · Youth DevelopmentBOYS & GI…SALLYS FUND INC — $16,000 · Human ServicesSALLYS FU…ORANGEWOOD FOUNDATION — $16,000 · Crime & LegalORANGEWOO…GRACE SCIENCE FOUNDATION — $16,000 · HealthGRACE SCI…FRIENDS OF THE SEA LIONS INC DBA PACIFIC MARINE MAMMAL CENTER — $8,500 · AnimalsTHE SURFRIDER FOUNDATION — $1,000 · Environment
Other$102,500Housing & Shelter$17,000Youth Development$16,000Human Services$16,000Crime & Legal$16,000Health$16,000Animals$8,500Environment$1,000

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

25%50%75%100%$1.0M$10Mgrantee revenue →↑ your share of their budgetBOYS & GIRLS CLUB OF LAGUNA BEACH — $16,000 over 3y, 0.1% of budgetOrange County Rescue Mission Inc — $16,000 over 3y, 0.0% of budgetSALLYS FUND INC — $16,000 over 3y, 0.9% of budgetORANGEWOOD FOUNDATION — $16,000 over 3y, 0.0% of budgetGRACE SCIENCE FOUNDATION — $16,000 over 3y, 0.5% of budgetFRIENDS OF THE SEA LIONS INC DBA PACIFIC MARINE MAMMAL CENTER — $8,500 over 3y, 0.1% of budgetTHE SURFRIDER FOUNDATION — $1,000 over 1y, 0.0% of budgetGLENNWOOD HOUSING FOUNDATION INC — $1,000 over 1y, 0.0% 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 BOYS & GIRLS CLUB OF LAGUNA BEACH
  • Who funds Orange County Rescue Mission Inc
  • Who funds SALLYS FUND INC
  • Who funds ORANGEWOOD FOUNDATION
  • Who funds GRACE SCIENCE FOUNDATION
  • Who funds FRIENDS OF THE SEA LIONS INC DBA PACIFIC MARINE MAMMAL CENTER
  • Who funds THE SURFRIDER FOUNDATION
  • Who funds GLENNWOOD HOUSING FOUNDATION INC

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 set of overlaps that mostly run through you, not between each other.

Donor Advised Charitable Giving IncCO6.5× affinity4 shared granteesties to 0 of 0Hover any node to trace its alignments.Compare side by side →

Open a dossier: Donor Advised Charitable Giving Inc

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 William David Sommerville 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%0%1%3%5%your share of their income ↑0%1%3%4%5%share of the org’s 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 · 0–5%
    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 17 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