· Private foundation
G Harbaugh 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 placed by its stated purpose and the recipient’s mission, by year — across FY2018–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k5 grants · $13k
- $10k–50k8 grants · $207k
- $50k–250k4 grants · $400k
- $250k+3 grants · $1.9M
| Recipient | Amount |
|---|---|
| CATALYST PHILANTHROPY FUND | $1,140,000 |
| THE CENTURY CLUB | $425,250 |
| PROJECT HEALING WATER FLY FISHING INC | $360,000 |
| JESSIE REES FOUNDATION | $225,000 |
| MAULI OLA FOUNDATION | $75,000 |
| Individual grant recipient | $50,000 |
| SOUL SURVIVOR OUTDOOR | $50,000 |
| PHILANTHROPIC IMPACT FUND | $42,000 |
| IAN WALSH MENEHUNE MAYHEM FOUNATION | $40,000 |
| SILVER LINING FOUNDATION | $30,000 |
| GRAVITY RESEARCH FOUNDATION | $25,000 |
| SPIRIT OF LIBERTY FOUNDATION | $25,000 |
| MIDDLE TENNESSEE STATE UNIVERSITY FOUNDATION | $25,000 |
| SPECIAL OPS XCURSIONS INC | $10,000 |
| NPLB OUTDOORS | $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 (FY19–24, $57k) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 82% 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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +77% since the first grant, against +33% for the ones you funded once.
34 repeat relationships — 12 still active in FY2024, 22 since wound down; 8 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, 52% of grant dollars renewed an existing relationship; $1.2M 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
- PIPHILANTHROPIC IMPACT FUND7× · 2018–2024 · $5.9M · revenue ×11 · 66% of their budget
- JRJessie Rees Foundation6× · 2019–2024 · $1.4M · revenue +17%
- SSSOUL SURVIVOR OUTDOOR6× · 2019–2024 · $335k · revenue +278% · 31% of their budget
Funded once
- HHHEROESPROJECT HEALING WATERSone grant, 2019 · $450k
- BHBig Hole River Foundation Incone grant, 2020 · $105k · revenue -83% · 78% of their budget
- SHStarkey Hearing Foundationone grant, 2019 · $100k · revenue -72%
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 san diego foundation inspires enduring philanthropy and enables community solutions to improve the quality of life in our region.
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…
Save threatened marine life using pioneering research, education, and sustainable conservation solutions
Leading Citizen scientists to promote stewardship of sustainable reef communities worldwide.
The Sierra Fund (TSF) is a non-profit organization with a mission to restore ecosystem and community resiliency in the Sierra Nevada.
To advocate for policy changes by governments and corporations in order to preserve ocean life and return the oceans to their former abundance.
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…
The california marine sanctuary foundation is a nonprofit organization working to advance the understanding and stewardship of ocean resources in california. for over 25 years cmsf has partnered with local communities, businesses,…
For reference, the grantee most central to the portfolio’s shape is The Heritage Foundation and the most unlike its peers is Starkey Hearing Foundation. 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 18 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) — 5% of your grantees by number, and just 19% 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 99 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 PHILANTHROPIC IMPACT FUND ↗
- Who funds Jessie Rees Foundation ↗
- Who funds PROJECT HEALING WATERS FLY FISHING INC ↗
- Who funds CATALYST PHILANTHROPY FUND ↗
- Who funds Social Impact Fund ↗
- Who funds THE MAULI OLA FOUNDATION DBA BREATH OF LIFE ↗
- Who funds SOUL SURVIVOR OUTDOOR ↗
- Who funds MIDDLE TENNESSEE STATE UNIVERSITY FOUNDATION ↗
- Who funds IAN WALSH MENEHUNE MAYHEM FOUNDATION ↗
- Who funds THE SPIRIT OF LIBERTY FOUNDATON ↗
- Who funds WARFIGHTER SCUBA ↗
- Who funds Big Hole River Foundation Inc ↗
- Who funds Starkey Hearing Foundation ↗
- Who funds MARTY HENNESSY INSPIRING CHILDREN FOUNDATION ↗
- Who funds JUST KEEP LIVIN FOUNDATION ↗
- Who funds MAUI FOOD BANK INC ↗
- Who funds SOCIAL GOOD FUND INC ↗
- Who funds THE EMERIL LAGASSE FOUNDATION ↗
- Who funds SIMA ENVIRONMENTAL FUND ↗
- Who funds VALLEY VIEW SCHOOL INC ↗
- Who funds SONOMA COUNTY COMMUNITY FOUNDATION ↗
- Who funds DIABETES RESEARCH CONNECTION ↗
- Who funds Upper Missouri Waterkeeper Inc ↗
- Who funds LOVE ONE INTERNATIONAL ↗
- Who funds PROTEUS ACADEMY INC ↗
- Who funds SAN DIEGO AIR & SPACE MUSEUM INC ↗
- Who funds MONTANA PRESERVATION ALLIANCE INC ↗
- Who funds Never Broken Foundation ↗
- Who funds ZOOLOGICAL SOCIETY OF SAN DIEGO ↗
- Who funds FOREVER BALBOA PARK ↗
- Who funds GOLDEN RULE CHARITY ↗
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: Harbaugh George & Betty Charitable Foundation · The Stanley E Hanson Foundation · Living Legacy Foundation · The San Diego Foundation · The Chuck and Ernestina Kreutzkamp Foundation · Jewish Community Foundation of San Diego · The Conrad Prebys Foundation · Rancho Santa Fe Foundation · Sempra Foundation · Edward Charles Foundation · The Community Foundation of Middle Tennessee Inc · The Burnham 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 G Harbaugh 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.
- Project Healing Waters Fly Fishing Inc — 46% 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 G Harbaugh Foundation?
Find your warmest path to G Harbaugh 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.