· Private foundation
The William Hall Tippett and Ruth Rathell Tippett 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 clustered by its grantee’s IRS cause code (NTEE), by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k17 grants · $67k
- $10k–50k13 grants · $216k
| Recipient | Amount |
|---|---|
| LA JOLLA PLAYHOUSE | $35,000 |
| OPERA NEO | $30,000 |
| THE SAN DIEGO HUMANE SOCIETY | $25,000 |
| TIMKEN MUSEUM OF ART | $20,000 |
| DAVID'S HARP FOUNDATION | $16,000 |
| CHALLENGE CENTER THERAPY CENTER | $15,000 |
| LUCKY DUCK FOUNDATION | $15,000 |
| MONARCH SCHOOL PROJECT | $10,000 |
| OUTSIDE THE LENS | $10,000 |
| LIBERTY SCHOOL NTC FOUNDATION | $10,000 |
| NEW VILLAGE ARTS | $10,000 |
| ARMS WIDE OPEN | $10,000 |
| SERVING SENIORS | $10,000 |
| SAN DIEGO CHILDRENS CHOIR | $5,000 |
| INSTITUTE OF CONTEMPORARY ART SAN DIEGO | $5,000 |
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 (FY17–25, $117k) land where the poverty rate runs at 11%, against an area that typically sits at 11%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +61% since the first grant, against +48% for the ones you funded once.
40 repeat relationships — 19 still active in FY2025, 21 since wound down; 8 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, 83% of grant dollars renewed an existing relationship; $49k 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
- TATHEATER & ARTS FOUNDATION OF SAN DIEGO COUNTY DBA LA JOLLA PLAYHOUSE6× · 2017–2025 · $539k · revenue +63%
- SDSAN DIEGO HUMANE SOCIETY AND SPCA8× · 2017–2025 · $217k · revenue +134%
- ONOpera Neo8× · 2018–2025 · $126k · revenue +299%
Funded once
- ECEpiscopal Community Servicesone grant, 2023 · $20k · revenue +3%
- SDSAN DIEGO TIJUANA WORLD DESIGN CAPITAL 2024one grant, 2023 · $15k
- IRIvey Ranch Park Associationone grant, 2022 · $10k
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.
Since 1945, San Diego Youth Symphony (SDYS) has served as a catalyst for investing in the future of young people through joyful and transformative music-making experiences. We reach over 2,500 students and families annually throughout San…
San Diego Junior Theatre (Junior Theatre) was incorporated in 1948 as a nonprofit corporation and is the oldest youth theatre in the nation, offering affordable camps, classes, and outreach programs for children ages 3-18; as well as six…
The New Childrens Museum (the Museum) in San Diego is an arts-based childrens museum whose mission is to stimulate imagination, creativity, and critical thinking in children and families through inventive, engaging experiences with…
Arts Education Connection San Diego engages professional teaching artists to provide high-quality arts education programs in all art forms for students, educators, families and communities, advocating for, leading and advancing education…
Excite, entertain and enrich diverse audiences.
The San Diego Theatre Critics Circle is a nonprofit educational organization dedicated to reviewing and honoring the top achievements in San Diego professional theater. The organization is made up of 9 professional theater critics who…
Mission: the mission of san diego opera is to deliver exceptional performances and exciting, accessible programs to diverse audiences, focusing on community partnerships, and the transformative and expressive power of the human voice. as…
Slo rep strengthens theatre's cultural influence and enriches the central coast by producing professional theatre, nurturing artists and providing theatre education for children and adults.
San Diego Theatres, Inc. (SDTI) is a not-for-profit public benefit corporation established to manage and operate publicly owned performing arts theatres. SDTI was established in 2003 by the San Diego Convention Center Corporation (SDCCC),…
To provide the youth of san diego with an opportunity to study, understand, and appreciate, through education and participation, the art of ballet, and to enrich the cultural life of the community.
San Diego Jewish Academy empowers each student to learn for life, guided by Jewish values and rooted in strength of community.
For reference, the grantee most central to the portfolio’s shape is The San Diego Symphony Orchestra Association and the most unlike its peers is Opera Neo. 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 30 years old; the field is 12. You back the established end — and your money leans older still.
The field is 25% startups (under 5 years old) — 4% of your grantees by number, and just 1% of your money.
The orgs you fund almost never close — 2% 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.
55 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. 55 of the 75 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 THEATER & ARTS FOUNDATION OF SAN DIEGO COUNTY DBA LA JOLLA PLAYHOUSE ↗
- Who funds SAN DIEGO HUMANE SOCIETY AND SPCA ↗
- Who funds Opera Neo ↗
- Who funds DAVID'S HARP FOUNDATION ↗
- Who funds INSTITUTE OF CONTEMPORARY ART SAN DIEGO ↗
- Who funds VILLA MUSICA ↗
- Who funds SERVING SENIORS ↗
- Who funds Arms Wide Open Corporation ↗
- Who funds THERAPY CENTER INC DBA CHALLENGE CENTER ↗
- Who funds THE PUTNAM FOUNDATION DBA TIMKEN MUSEUM OF ART ↗
- Who funds UC SAN DIEGO FOUNDATION ↗
- Who funds Mainly Mozart Inc ↗
- Who funds WRITE OUT LOUD ↗
- Who funds FROSTED FACES FOUNDATION INC ↗
- Who funds San Diego Bird Alliance ↗
- Who funds MONARCH SCHOOL PROJECT ↗
- Who funds VOICES OF OUR CITY CHOIR INC ↗
- Who funds NEW VILLAGE ARTS INC ↗
- Who funds VISTA HILL FOUNDATION ↗
- Who funds Episcopal Community Services ↗
- Who funds San Diego Children's Choir ↗
- Who funds LUCKY DUCK FOUNDATION ↗
- Who funds Playwrights Project ↗
- Who funds LUX ART INSTITUTE ↗
- Who funds Fern Street Community Arts Inc ↗
- Who funds SAN DIEGO TIJUANA WORLD DESIGN CAPITAL 2024 ↗
- Who funds MUSEUM OF CONTEMPORARY ART SAN DIEGO ↗
- Who funds BOYS AND GIRLS CLUB OF VISTA INC ↗
- Who funds MUSEUM OF PHOTOGRAPHIC ARTS ↗
- Who funds LIVING COAST DISCOVERY CENTER ↗
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 Conrad Prebys Foundation · The San Diego Foundation · The Parker Foundation · Jewish Community Foundation of San Diego · David C Copley Foundation · Samuel I & John Henry Fox Foundation · Pratt Memorial Fund · Price Philanthropies Foundation · Sempra Foundation · The Nordson Corporation Foundation · Rancho Santa Fe Foundation · French Fund Samuel Katherine Tua
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 William Hall Tippett and Ruth Rathell Tippett 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.
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How do I get to The William Hall Tippett and Ruth Rathell Tippett Foundation?
Find your warmest path to The William Hall Tippett and Ruth Rathell Tippett 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.