· Private foundation
The Bruce and Carolyn Costin Martin Charitable Foundation
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 clustered by its grantee’s IRS cause code (NTEE), by year — across FY2020–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k5 grants · $19k
- $10k–50k10 grants · $194k
| Recipient | Amount |
|---|---|
| WILDAID | $39,250 |
| SHELDRICK WILDLIFE TRUST USA | $35,000 |
| CHICO UNIVERSITY FOUNDATION | $26,000 |
| LEADING HARVEST | $25,000 |
| PROJECT HEAL | $15,000 |
| Individual grant recipient | $12,000 |
| MARCH FOR OUR LIVES FOUNDATION | $12,000 |
| WOMEN MAKE MOVIES | $10,000 |
| OAKLAND LITERACY COALITION | $10,000 |
| CIVIC NATION | $10,000 |
| CA HOSPITAL MEDICAL FDN (HOPE STREET) | $7,500 |
| FRIENDS OF BALLONA WETLANDS | $5,000 |
| HIJAS DEL CAMPO | $2,500 |
| CENTER FOR FARMWORKER FAMILIES | $2,500 |
| NATIONAL CENTER FOR FAMILY PHILANTHROPY | $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.
Dollar for dollar, your grants (FY20–24) land where the poverty rate runs at 13%, against an area that typically sits at 11%. 46% of your dollars go to grantees based in above-average-need neighborhoods. Your grants spread fairly evenly across need levels.
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.
10 repeat relationships — 8 still active in FY2024, 2 since wound down; 7 grantees were first funded in FY2024 (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 FY2024, 77% of grant dollars renewed an existing relationship; $50k 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
- WIWILDAID INC5× · 2020–2024 · $123k · revenue +31%
- TDTHE DAVID SHELDRICK WILDLIFE TRUST USA INC3× · 2022–2024 · $100k · revenue +7%
- PHPROJECT HEAL HELP TO EAT ACCEPT & LIVE4× · 2021–2024 · $95k · revenue +31%
Funded once
- SWSHELDRICK WILDLIFE TRUSTone grant, 2020 · $10k
- HSHOPE STEEET MARGOLIS FAMILY CENTERone grant, 2022 · $8k
- TRTHE ROSE FOUNDATION FOR COMMUNITIES THE ENVIRONMENTgraduatedone grant, 2020 · $5k · revenue +99%
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.
Food & water watch conducts extensive research and public education to ensure the food and water we consume is safe, accessible and sustainably produced. so we can all enjoy and trust in what we eat and drink, we help people take charge of…
Ccof certification services, llc, a wholly owned subsidiary of california certified organic farmers inc., provides a wide array of cost-effective, organic certification programs. ccof certifies farm and livestock operations, processors,…
The animal agriculture alliance is a nonprofit organization that helps bridge the communication gap between farm and fork. we connect food industry stakeholders, engage food chain influencers and promote consumer choice by helping key…
To research and develop healthy climate solutions comprising global food security, ecosystem regeneration and carbon balance in seas and soils.
California Coastkeeper Alliance unites Waterkeeper programs statewide to fight for swimmable, fishable, and drinkable waters for all Californians.
We Dont Waste increases food access and protects the planet by rescuing and repurposing food, while educating and advocating to increase food security and decrease food waste.
Connect conservationists and supporters, deploy resources to the field, provide conservationists with tools and support they need to succeed.
The mission of the California Farmland Trust is to help farmers protect the best farmland in the world.
Protect Connecticuts farmland for agricultural use by purchasing and accepting donations of agricultural conservation easements
Growing a local food system where the health of people and planet come first
Amazon conservation unites science, people, and innovation to protect the amazon - the greatest wild forest on earth. as guardians of the most iconic forest on the planet, we bring together the power of the latest science and technology…
Global Forest Generation restores and protects forest ecosystems in partnership with grassroots leaders and local communities across vast landscapes which play a critical role in preserving water, protecting biodiversity, storing carbon,…
For reference, the grantee most central to the portfolio’s shape is National Center for Family Philanthropy Inc and the most unlike its peers is The Carbon Underground. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
16 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. 16 of the 23 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 WILDAID INC ↗
- Who funds THE DAVID SHELDRICK WILDLIFE TRUST USA INC ↗
- Who funds PROJECT HEAL HELP TO EAT ACCEPT & LIVE ↗
- Who funds LEADING HARVEST ↗
- Who funds THE CARBON UNDERGROUND ↗
- Who funds MARCH FOR OUR LIVES FOUNDATION ↗
- Who funds Oakland Literacy Coalition Inc ↗
- Who funds CALIFORNIA HOSPITAL MEDICAL CENTER FOUNDATION ↗
- Who funds Civic Nation ↗
- Who funds WOMEN MAKE MOVIES INC ↗
- Who funds THE ROSE FOUNDATION FOR COMMUNITIES THE ENVIRONMENT ↗
- Who funds FRIENDS OF BALLONA WETLANDS ↗
- Who funds NATIONAL ASSOCIATION OF ANOREXIA NERVOSA AND ASSOCIATED DISORDERS INC ↗
- Who funds CENTER FOR FARMWORKER FAMILIES ↗
- Who funds HIJAS DEL CAMPO ↗
- Who funds NATIONAL CENTER FOR FAMILY PHILANTHROPY 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: Silicon Valley Community Foundation · East Bay Community Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Charities Aid Foundation America · Network for Good · American Online Giving Foundation Inc · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile 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 The Bruce and Carolyn Costin Martin Charitable 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.
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 The Bruce and Carolyn Costin Martin Charitable Foundation?
Find your warmest path to The Bruce and Carolyn Costin Martin Charitable 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.