· Private foundation
The Prioleau Family 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 FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k14 grants · $28k
- $10k–50k3 grants · $52k
| Recipient | Amount |
|---|---|
| WASHINGTON & LEE UNIVERSITY | $21,500 |
| GALVESTON BAY FOUNDATION | $20,000 |
| EPISCOPAL HIGH SCHOOL | $10,000 |
| CHRIST CHURCH CATHEDRAL | $7,100 |
| PRO-VISION INC | $7,000 |
| FORUM OF CIVICS FOUNDATION | $2,850 |
| HOUSTON BARC FOUNDATION | $2,500 |
| THE MUSEUM OF FINE ARTS HOUSTON | $2,000 |
| STANFORD UNIVERSITY | $2,000 |
| MAKE A WISH FOUNDATION OF TEXAS | $1,500 |
| HOUSTON AREA PARKINSON SOCIETY | $1,000 |
| KIDS' MEALS INC | $515 |
| HOUSTON FOOD BANK | $500 |
| HOUSTON BOTANIC GARDEN | $500 |
| HABITAT FOR HUMANITY INC | $300 |
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 (FY24–24, $515) land where the poverty rate runs at 16%, against an area that typically sits at 11%. 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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +64% since the first grant, against +32% for the ones you funded once.
38 repeat relationships — 13 still active in FY2024, 25 since wound down; 3 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, 96% of grant dollars renewed an existing relationship; $3k 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
Washington and Lee University8× · 2017–2024 · $94k · revenue +15%- GBGalveston Bay Foundation Inc8× · 2017–2024 · $75k · revenue +156%
- HAHouston Area Parkinson Society8× · 2017–2024 · $29k · revenue +83%
Funded once
- TSTHE SALVATION ARMY USAone grant, 2020 · $6k
- BBakerRipleygraduatedone grant, 2017 · $5k · revenue +89%
- GCGLENWOOD CEMETARY FOUNDATIONone grant, 2019 · $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 mission of the Houston Museum of Natural Science shall be to preserve and advance the general knowledge of natural science; to enhance in individuals the knowledge of and delight in natural science and related subjects; and to maintain…
To advance the conservation of birds and their habitats in the Greater Houston Gulf Coast region by acquiring and maintaining critical habitat as bird sanctuaries, providing education programs and nature experiences, and advocating policy…
The Heritage Society (THS) is a nonprofit organization founded in 1954 whose mission is to tell the stories of the diverse history of Houston and Texas through collections, exhibits, the arts, educational programs, film, video, and other…
The Houston Local Information Initiative, Inc. provides public service journalism that reflects the civic needs of the diverse communities comprising Greater Houston.
Our mission is to be the leading advocate for our member physicians, their patients and our community, in promoting the highest standards of ethical medical practice, access to quality medical care, medical education, research, and…
The Houston Bar Foundation supports programs that help provide legal representation to the indigent, promote community understanding of our legal system, and foster the administration of justice.
The Houston Parks Board mission is to expand, improve, and protect parks and greenspace in the Houston region.
The mission of Breakthrough Houston (BTH) is to work with highly motivated students to achieve post-secondary success and empower aspiring leaders to become the next generation of educational advocates.
The Health Museum is an innovative science center that provides an interactive and entertaining experience for all ages, promotes understanding and appreciation of the human body, mind, and spirit, and inspires a lifelong commitment to…
The Houston Parks Board Foundation provides the Houston Parks Board with financial assistance to support operations and park projects.
To completely restore Houston Freedmen's Town as a heritage district that provides America with its only Freedmen's Town.
Memorial hermann health system is a nonprofit, values-driven, community-owned health system dedicated to improving health. our vision is to create healthier communities, now and for generations to come. our values are community,…
For reference, the grantee most central to the portfolio’s shape is The Methodist Hospital Foundation and the most unlike its peers is Planned Parenthood. 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 42 years old; the field is 11. You back the established end — and your money leans older still.
The field is 29% startups (under 5 years old) — 2% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 18% 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.
47 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. 47 of the 81 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 Washington and Lee University ↗
- Who funds Galveston Bay Foundation Inc ↗
- Who funds Houston Area Parkinson Society ↗
- Who funds River Oaks Garden Club ↗
- Who funds CHINQUAPIN PREPARATORY SCHOOL ↗
- Who funds St John's School ↗
- Who funds THE BEACON OF DOWNTOWN HOUSTON ↗
- Who funds Forum of Civics Foundation ↗
- Who funds THE MUSEUM OF FINE ARTS HOUSTON ↗
- Who funds PRO-VISION INC ↗
- Who funds THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY ↗
- Who funds Houston Botanic Garden ↗
- Who funds BakerRipley ↗
- Who funds Camp For All Foundation ↗
- Who funds The Junior League of Houston Inc ↗
- Who funds Memorial Park Conservancy Inc ↗
- Who funds Small Steps Nurturing Center ↗
- Who funds Houston BARC Foundation ↗
- Who funds The Houston Food Bank ↗
- Who funds HOUSTON HUMANE SOCIETY ↗
- Who funds Ducks Unlimited Inc ↗
- Who funds RIVER OAKS FOUNDATION ↗
- Who funds Trees For Houston ↗
- Who funds Vanderbilt University ↗
- Who funds Bo's Place ↗
- Who funds Houston Hospice ↗
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: Greater Houston Community Foundation · The Brown Foundation Inc · Albert & Ethel Herzstein Charitable Foundation · Harry S & Isabel C Cameron Foundation Sentinel Trust Company · Strake Foundation · Alvin & Lucy Owsley Foundation · Vivian L Smith Foundation · Shell USA Company Foundation · LykesKnapp Family Fund · The Elkins Foundation · Boyd and Evelyn Mullen Charitable Foundation · The Vaughn Foundation CO Huntington National Bank
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 Prioleau Family 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 Prioleau Family Foundation?
Find your warmest path to The Prioleau Family 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.