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Spinnaker Foundation Inc at a glance

· Private foundation

Spinnaker Foundation Inc

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.

$28k
Granted FY2025still arriving
9
Grants FY2025still arriving
5
States reached
$15k
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, FY2020 to 2025.

Health$115kEducation$52kRecreation & Sports$14kScience & Tech$3kInternational$2kHuman Services$415Philanthropy$100
02FY2025 · 9 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k8 grants · $13k
  • $10k–50k1 grant · $15k
$1,000
Median grant
5
States reached
$714k
Total assets
Largest grants
RecipientAmount
Jupiter Medical Center$15,000
Healthnetwork Foundation$8,000
AJGA$1,025
Georgia Institute of Technology$1,000
Palm Beach Atlantic University$1,000
Loxahatchee Club Educational Fndtn$1,000
Special Olympics Florida$600
Soldiers Angels$315
Leukemia and Lymphoma Society$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 (FY20–25, $43k) land where the poverty rate runs at 17%, against an area that typically sits at 12%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 12%Healthnetwork Foundation: $1k → 17%Healthnetwork Foundation: $12k → 17%Healthnetwork Foundation: $10k → 17%Healthnetwork Foundation: $8k → 17%Healthnetwork Foundation: $7k → 17%Healthnetwork Foundation: $5k → 17%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
MA
OH
PA
CA
MD
DC
GA
TX
FL
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.

96%of every dollar goes to organizations it has funded before.
$180k · 8 repeat orgs$7k to everyone else

Grantees it renews have grown median revenue +58% since the first grant, against +32% for those funded once.

8 repeat relationships: 6 still active in FY2025, 2 since wound down; 3 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

8
14

Total granted

$180k
$5k

Median revenue growth · since first grant

+58%
+32%

Still filing today

88%
57%

New vs renewed · share of each year

In FY2025, 95% of grant dollars renewed an existing relationship; $1k went to new ones.

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

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

’20’21’22’23’24’25
HealthEducationRecreation & SportsHuman ServicesPublic Safety & DisasterOther
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

  • JM
    Jupiter Medical Center Inc
    6× · 2020–2025 · $70k · revenue +72%
  • HEALTHNETWORK FOUNDATION FKA HEALTH NET FOUNDATION INC
    6× · 2020–2025 · $43k · revenue +183%
  • TB
    THE BENJAMIN PRIVATE SCHOOL INC
    5× · 2020–2024 · $25k · revenue +87%

Funded once

  • S
    Surfaid
    one grant, 2020 · $2k
  • UO
    University of Maryland
    one grant, 2024 · $629
  • JD
    Juvenile Diabetes Research Foundtn
    one grant, 2023 · $500
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
New York University

Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.

Education
3
The Johns Hopkins Hospital

For more than 125 years, the mission of the johns hopkins hospital has been to lead the world in the diagnosis and treatment of disease and to train tomorrow's great physicians, nurses and scientists. above all, we aim to provide the…

Health
4
New York Genome Center Inc

Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.

Health
5
University of Minnesota Physicians

University of minnesota physicians serves as the integrated group practice for the university of minnesota medical school full-time faculty to provide the highest quality healthcare to patients and their families.university of minnesota…

Health
6
Fred Hutchinson Cancer Center

Fred hutch cancer center ("fred hutch") unites innovative research and compassionate care to prevent and eliminate cancer and infectious disease. continued on schedule o

Health
7
Children's Health Care

We champion the health needs of children and families. we are committed to improving children's health by providing the highest-quality, family centered care, advanced through research and education.

Health
8
The Translational Genomics Research Institute

Please see schedule o

Health
9
Target Als Foundation Inc

Our mission is to break down barriers to als research to find effective treatments. by uniting academia, the pharma and biotech industry, government, venture capital, related nonprofits, and the als community, we aim to overcome the…

Education
10
Mass General Brigham Incorporated & Affiliates Group Return

Mass general brigham incorporated is developing an integrated health care delivery system throughout the region that offers patients a continuum of coordinated, high-quality care.

Health
11
Sanford Burnham Prebys Medical Discovery Institute

Sanford burnham prebys medical discovery institute's mission is to advance the biomedical sciences by cultivating the next generation of scientific leaders, providing meaningful opportunities for researchers of all backgrounds to learn,…

Health
12
Children's Hospital & Research Center At Oakland

The mission of children's hospital & research center at oakland is to protect and advance the health and well-being of children through clinical care, teaching and research.

Health
How this is measured
The grantee most central to the portfolio’s shape is Parkinson's Foundation Inc; the most unlike its peers is Multiple Sclerosis Foundation Inc. 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 25 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)
18/18
Grantees still filing
14/18
Grew since first funded

Where the money sits, by cause and then by grantee

Jupiter Medical Center Inc: $70,225 · HealthJupiter Medical Center Inc+6 more: $1,400 · HealthTHE BENJAMIN PRIVATE SCHOOL INC: $24,770 · EducationTHE BENJAMIN PRIVATE SCHOOL IN…Emory University: $18,781 · EducationEmory UniversityLOXAHATCHEE CLUB EDUCATIONAL FOUNDATION: $6,000 · EducationLOXAHATCHEE CLUB EDUCATIONAL F…+2 more: $1,250 · EducationHEALTHNETWORK FOUNDATION FKA HEALTH NET FOUNDATION INC: $43,000 · Human ServicesHEALTHNETWORK FOUNDATION F…American Junior Golf Association Inc: $12,725 · Recreation & SportsSPECIAL OLYMPICS FLORIDA Inc: $1,000 · Recreation & SportsGEORGIA INSTITUTE OF TECHNOLOGY: $3,100 · OtherSurfaid: $1,900 · OtherUniversity of Maryland: $629 · OtherJuvenile Diabetes Research Foundtn: $500 · Other+5 more: $625 · OtherSOLDIERS' ANGELS: $315 · Public Safety & Disaster
Health$71,625Education$50,801Human Services$43,000Recreation & Sports$13,725Other$6,754Public Safety & Disaster$315

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 budgetJupiter Medical Center Inc: $70,225 over 6y, 0.0% of budgetHEALTHNETWORK FOUNDATION FKA HEALTH NET FOUNDATION INC: $43,000 over 6y, 0.1% of budgetTHE BENJAMIN PRIVATE SCHOOL INC: $24,770 over 5y, 0.0% of budgetEmory University: $18,781 over 2y, 0.0% of budgetAmerican Junior Golf Association Inc: $12,725 over 4y, 0.1% of budgetLOXAHATCHEE CLUB EDUCATIONAL FOUNDATION: $6,000 over 6y, 0.4% of budgetPALM BEACH ATLANTIC UNIVERSITY INC: $1,000 over 1y, 0.0% of budgetSPECIAL OLYMPICS FLORIDA Inc: $1,000 over 2y, 0.0% of budgetCitizens United for Research in Epilepsy: $500 over 1y, 0.0% of budgetTHE CHILDREN'S HOSPITAL OF PHILADELPHIA: $500 over 1y, 0.0% of budgetSOLDIERS' ANGELS: $315 over 1y, 0.0% of budgetTHE NEW YORK OPPORTUNITY NETWORK INC DBA THE OPPORTUNITY NETWORK: $250 over 1y, 0.0% of budgetPARKINSON'S FOUNDATION INC: $150 over 1y, 0.0% of budgetNEW ALTERNATIVES FOR CHILDREN INC: $100 over 1y, 0.0% of budgetBLOOD CANCER UNITED INC: $100 over 1y, 0.0% of budgetAmerican Heart Association Inc: $100 over 1y, 0.0% of budgetMULTIPLE SCLEROSIS FOUNDATION INC: $100 over 1y, 0.0% of budgetBREAKTHROUGH T1D: $50 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.

How much its grantees rely on government

Each dot is one organization Spinnaker Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Spinnaker Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 30%0%1%3%5%funder's share of their income ↑0%4%8%11%15%share of the org’s income from government →median 2%
  • Jupiter Medical Center Inc: 2% of income from government
  • Palm Beach Atlantic University Inc: 0% of income from government
no gov moneyreceives it· size = income
3get no government money at all
3report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–15%
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 Spinnaker Foundation Inc?

Find your warmest path to Spinnaker Foundation Inc 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 25 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

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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