· Private foundation
Coastal Barrier Island 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.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k29 grants · $43k
- $10k–50k3 grants · $30k
| Recipient | Amount |
|---|---|
| BLACKWING FOUNDATION | $10,000 |
| UCSF FOUNDATION | $10,000 |
| STOCKTON SYMPHONY ASSOCIATION | $10,000 |
| THE HAGGIN MUSEUM | $5,000 |
| KUKI'O HO'OMANA FUND | $5,000 |
| SANTA CATALINA SCHOOL | $5,000 |
| PEOPLEUNITED | $2,500 |
| CHILDREN'S HOME OF STOCKTON | $2,000 |
| MARIPOSA MUSEUM & HISTORY CENTER INC | $2,000 |
| PLANNED PARENTHOOD FEDERATION OF AMERICA INC | $2,000 |
| ONE HUNDRED MILES | $2,000 |
| MANOMET | $1,500 |
| NEVADA STATE RAILROAD MUSEUM | $1,000 |
| CALIFORNIA WATERFOWL ASSOCIATION | $1,000 |
| HARVARD WESTLAKE SCHOOL | $1,000 |
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 (FY17–23, $2k) land where the poverty rate runs at 13%, 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.
Which US states your grants reach
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.
64 repeat relationships — 27 still active in FY2025, 37 since wound down; 4 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 74% of grant dollars renewed an existing relationship; $19k 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
- SSSTOCKTON SYMPHONY ASSOCIATION INC4× · 2018–2025 · $40k · revenue +13%
- TATHE AOPA FOUNDATION INC7× · 2017–2024 · $36k · revenue +85%
- TSThe Spaulding Wooden Boat Center3× · 2017–2022 · $18k · revenue +92%
Funded once
- ADARTSAVL DONATIONone grant, 2024 · $5k
- UOUNIVERSITY OF PACIFIC LEARNING FUNDone grant, 2019 · $5k
- KHKUKI'O HO'MANA FUNDone grant, 2024 · $5k
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 sacramento zoo inspires appreciation, respect and a connection with wildlife and nature through education, recreation and conservation.
University of the sciences prepares students to become leaders, innovators, and skilled practitioners in the sciences, the health professions, and related disciplines. we deliver excellence in teaching, research, and service through a safe…
Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.
Scu is a catholic and jesuit institution that makes student learning its central focus, promotes faculty and staff learning in its various forms, and exhibits organizational learning.
The catalina island conservancy protects and stewards 88% of catalina island. more than 42,000 acres of wildlands, coves and coastal habitats. founded to preserve the island's natural resources, the conservancy advances a mission rooted in…
The association serves its members by creating resources that enable california school administrators to develop and apply creative leadership and management skills and in turn, improve the educational process for all students.
The academy is a renowned scientific and educational institution with a mission to regenerate the natural world through science, learning, and collaboration. based in san francisco's golden gate park, it is home to a world-class aquarium,…
As an integral member of the san jose state university community, the san jose state university research foundation provides an entrepreneurial framework through which local, state and federal agencies, businesses and private foundations…
Sfn's mission is to: 1. advance the understanding of the brain and the nervous system by bringing together scientists of all segments of neuroscience, by facilitating the integration of research directed at all levels of biological…
To further the scientific, literary, educational and charitable purposes of california state university, monterey bay, including fundraising, development, endowment management, financial assistance, public relations and other support.
Raise private resources to advance the mission and priorities of the university and serve as ambassadors in the community. provide stewardship in the prudent investment of resources and ensure the integrity of the foundation through…
The uc santa barbara foundation actively works to further the goals of the university of california, santa barbara. the foundation seeks to maintain and nurture the university's quality and distinction. on behalf of the campus, the…
For reference, the grantee most central to the portfolio’s shape is Open Space Institute Inc and the most unlike its peers is Blackwing 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.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 40 years old; the field is 14. You back the established end — and your money leans older still.
The field is 24% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 1% lost their exemption, against 14% 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.
71 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. 71 of the 131 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 STOCKTON SYMPHONY ASSOCIATION INC ↗
- Who funds THE AOPA FOUNDATION INC ↗
- Who funds The Spaulding Wooden Boat Center ↗
- Who funds BLACKWING FOUNDATION INC ↗
- Who funds MARIPOSA MUSEUM & HISTORY CENTER INC ↗
- Who funds CATE SCHOOL ↗
- Who funds Coastal Georgia Historical Society ↗
- Who funds Children's Home of Stockton Inc ↗
- Who funds HAWAII PREPARATORY ACADEMY ↗
- Who funds UNIVERSITY OF CALIFORNIA SAN FRANCISCO FOUNDATION ↗
- Who funds THE JEDEDIAH SMITH SOCIETY ↗
- Who funds SANTA CATALINA SCHOOL ↗
- Who funds Farm at Oatland North ↗
- Who funds San Joaquin County Historical Society ↗
- Who funds Ducks Unlimited Inc ↗
- Who funds One Hundred Miles Inc ↗
- Who funds HENRYS FORK FOUNDATION INC ↗
- Who funds Wellesley College ↗
- Who funds The Village Group ↗
- Who funds HARVARD-WESTLAKE SCHOOL ↗
- Who funds MANOMET INC ↗
- Who funds KUKIO HOOMANA FUND ↗
- Who funds MUSIC WILL INC ↗
- Who funds USTA FOUNDATION INCORPORATED ↗
- Who funds PLANNED PARENTHOOD FEDERATION OF AMERICA INC ↗
- Who funds ST MARY'S HIGH SCHOOL ↗
- Who funds THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY ↗
- Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL 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: The Cortopassi Family Foundation · Hachman Family Foundation co Butterfield & Co CPAs Inc · Rosi Cerri Foundation Inc · The 54 Fund · The Ross E Bewley and Marilyn R Bewley Charitable Foundation Inc · Crete Family Foundation · Teichert Foundation · The San Francisco Foundation · Port City Operating Company LLC · San Joaquin Community Foundation Inc · Vaquero Foundation · The Antone and Marie Raymus Foundation
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 Coastal Barrier Island 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.
- Manomet Inc — 12% of income from government
- The Trustees of Reservations — 2% of income from government
- Wellesley College — 1% of income from government
- Wounded Warrior Project 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.
Warm introductions · Powered by PlinthPlus
How do I get to Coastal Barrier Island Foundation?
Find your warmest path to Coastal Barrier Island 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.