· Private foundation
Cox Foundation Inc
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.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2019–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k28 grants · $77k
- $10k–50k15 grants · $245k
- $50k–250k6 grants · $400k
- $250k+3 grants · $780k
| Recipient | Amount |
|---|---|
| Charles Schwab Charitable Gift Fund | $260,000 |
| Charles Schwab Charitable Gift Fund | $260,000 |
| Charles Schwab Charitable Gift Fund | $260,000 |
| Everglades Foundation | $130,000 |
| Nantucket Land Council Inc | $70,000 |
| Nantucket Boys and Girls Club | $50,000 |
| Community Foundation for Nantucket | $50,000 |
| Boys & Girls Club of Martin County (Hobe Sound) | $50,000 |
| Nantucket Cottage Hospital | $50,000 |
| Hobe Sound Community Chest Inc | $40,000 |
| Hobe Sound Early Learning Center | $40,000 |
| Nantucket Historical Association | $25,000 |
| Sankaty Head Foundation | $25,000 |
| St Paul's Episcopal Church Nantucket MA | $15,000 |
| Marine Biological Laboratory | $10,000 |
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.
Your human-services grants (FY20–24, $130k) 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 your grants land in higher-need ZIPs.
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.
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.
49 repeat relationships — 43 still active in FY2024, 6 since wound down; 1 grantees were first funded in FY2024 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Still filing today
New vs renewed · share of each year
In FY2024, 100% of grant dollars renewed an existing relationship; $1k went to new ones.
Where new relationships form · theme of each grantee’s first grant
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
- NCNANTUCKET CONSERVATION FOUNDATION INC6× · 2019–2024 · $725k · revenue +228%
- NBNANTUCKET BOYS AND GIRLS CLUB INC6× · 2019–2024 · $400k · revenue +33%
THE EVERGLADES FOUNDATION INC6× · 2019–2024 · $395k · revenue +226%
Funded once
- MGMass Golf2021 US Mid Amateur at Sankaty Head Golfone grant, 2020 · $25k
- CFConservative Fund Loxa-Lucie Headwaters FL2× · 2023–2024 · $20k
- NINantucket Island School of Designone grant, 2019 · $3k
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
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.
The purpose of the corporation is to act as a not-for-profit organization with a primary mission of promoting the health of nantucket islands harbor and its marine ecosystem. the corporation will work with the nantucket department of…
Support and encourage a collaborative community of the visual, performing and literary arts through education, grants, scholarships and events.
To enrich the cultural life of the island by fostering and supporting music education and performance opportunities for young people and adults.
To generate private support for public education on nantucket, to foster private and public partnerships that benefit the children of nantucket public schools, and to honor excellence in teaching and learning.
The alliance to protect nantucket sound is a 501(c)(3) non-profit environmental organization dedicated to the permanent preservation of nantucket sound, the historic body of water that lies between cape cod, martha's vineyard, and…
Research and publication of Sankaty Head area of Nantucket Island, Massachusetts
Promote the awareness and appreciation of lightship baskets and their makers, by educating and engaging the public about the complexity of this art form unique to nantucket. exhibiting historic and contemporary baskets.
To educate and encourage property owners as to what is possible to preserve and protect the historical elements of their properties and to raise awareness of the community about the value of and need for historic architectural preservation.
Aipc works to preserve and improve the environment, economy and quality of life on aquidneck island to ensure that the island remains a great place to live, work, play and thrive.
To engage people of all ages in the joy of sailing, offering access to all nantucket's youth, and teaching every participant in our programs enduring life and leadership skills, with a deep respect for the marine environment.
To provide means for the recreation and entertainment of its members, by establishing and maintaining a club with the proper buildings, grounds, and facilities to promote yachting, sports and social activities.
For reference, the grantee most central to the portfolio’s shape is Nantucket Conservation Foundation Inc and the most unlike its peers is The Everglades 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.
Your grantees are a median of 41 years old; the field is 13. You back the established end — and your money leans older still.
The field is 23% startups (under 5 years old) — 7% of your grantees by number, and just 2% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 13% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
35 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 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 35 of the 55 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.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
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 NANTUCKET CONSERVATION FOUNDATION INC ↗
- Who funds Community Foundation for Nantucket Inc ↗
- Who funds NANTUCKET BOYS AND GIRLS CLUB INC ↗
- Who funds THE EVERGLADES FOUNDATION INC ↗
- Who funds NANTUCKET LAND & WATER COUNCIL INC ↗
- Who funds BOYS & GIRLS CLUB OF MARTIN COUNTY ↗
- Who funds HOBE SOUND COMMUNITY CHEST INC ↗
- Who funds HOBE SOUND CHILD CARE CENTER INC ↗
- Who funds SANKATY HEAD FOUNDATION INC ↗
- Who funds MARINE BIOLOGICAL LABORATORY ↗
- Who funds MALTZ JUPITER THEATRE INC ↗
- Who funds NANTUCKET HISTORICAL ASSOCIATION ↗
- Who funds JUPITER ISLAND MEDICAL CLINIC INC ↗
- Who funds ACKNOW INC ↗
- Who funds ATLANTIC WHITE SHARK CONSERVANCY INC ↗
- Who funds FREEDOM INSTITUTE INC ↗
- Who funds NEW ENGLAND LIFE FLIGHT INC ↗
- Who funds NANTUCKET YACHT CLUB FOUNDATION INC ↗
- Who funds HOBE SOUND NATURE CENTER INC ↗
- Who funds NANTUCKET SUSTAINABLE DEVELOPMENT CORPORATION ↗
- Who funds NANTUCKET MARIA MITCHELL ASSOCIATION IN ↗
- Who funds ARTISTS ASSOCIATION OF NANTUCKET INC ↗
- Who funds NANTUCKET ATHENEUM INC ↗
- Who funds BROOKS SCHOOL ↗
- Who funds WALNUT HILL CENTER FOR THE ARTS INC ↗
- Who funds FAIRWINDS-NANTUCKET'S COUNSELING CENTER ↗
- Who funds PALLIATIVE AND SUPPORTIVE CARE OF NANTUCKET 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 tightly interlocked camp — most of these funders back each other's grantees too.
Open a dossier: Legatus Foundation · The David and Elizabeth Long Foundation · St Clair Charitable Trust · Ethel D Colket Foundation · Colket Family Foundation · Community Foundation for Nantucket Inc · Nelson Mead Fund · The Patton Charitable Foundation · CMB Foundation · Stephanie & Lawrence Flinn Jrcharitable Trust · Nancy Sayles Day Foundation · Landmark Charitable Foundation 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 Cox Foundation Inc 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, a single department, or state — and drag the year to watch it move.
- Marine Biological Laboratory — 20% of income from government
- Community Foundation for Nantucket Inc — 10% of income from government
- Nantucket Maria Mitchell Association in — 9% of income from government
- New England Life Flight Inc — 5% of income from government
- Atlantic White Shark Conservancy Inc — 5% of income from government
- Nantucket Conservation Foundation Inc — 4% of income from government
- Boys & Girls Club of Martin County — 2% of income from government
- Nantucket Historical Association — 1% of income from government
- Artists Association of Nantucket Inc — 0% of income from government
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.