· Private foundation
Mary B & James K Jennings Charitable 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.
| Recipient | Amount |
|---|---|
| Houston Methodist Hospital Foundation | $5,000 |
| Trinity Episcopal School | $3,000 |
| Texas Children's Hospital | $1,000 |
| ReMind | $900 |
| Camp Allen | $850 |
| Neil-Cochran House Museum | $500 |
| Post Oak Little League | $500 |
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 (FY17–22, $3k) land where the poverty rate runs at 16%, against an area that typically sits at 13%. 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.
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 +35% since the first grant, against +30% for the ones you funded once.
18 repeat relationships — 5 still active in FY2025, 13 since wound down; 2 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, 91% of grant dollars renewed an existing relationship; $1k 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
- TMTHE MUSEUM OF FINE ARTS HOUSTON3× · 2020–2022 · $15k · revenue +51%
- BBBayou Bend Gardens Endowment3× · 2017–2019 · $15k · revenue +88%
- WMWilliam Marsh Rice University3× · 2018–2022 · $5k · revenue +63%
Funded once
- RORiver Oaks Baptist Schoolone grant, 2023 · $3k
- TCTHE CHURCH OF ST JOHN THE DIVINEone grant, 2017 · $2k
- RURice Univ Shepherd School of Musicone grant, 2017 · $1k
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.
To enrich life through discovery, education, and the conservation of plants and the natural environment.
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…
Plant, protect and promote trees all over the greater Houston area.
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,…
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…
See Schedule OSt. John's School is an independent, co-educational day school presenting a 13-year sequence of college preparatory training. A non-profit institution, it was founded in 1946 to provide the community with a school of exacting…
The mission of the Houston Academy of Medicine is to support the community service, education, scientific, and charitable programs for physicians, their patients, and the community at large in Harris County.
The HISD Foundation is dedicated to mobilizing the local community to support innovative priorities in HISD to improve outcomes for all students in the district. Our mission is to fund projects and programs of merit that fall outside of…
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…
Family, School, and Church united in the education and support of each child - this is the founding premise upon which Presbyterian School nurtures and challenges its students. The school provides an educational program of the highest…
See Schedule OThe purpose of Awty International School (Awty) is to create an environment where students experience excellence every day to make their mark on the world alongside their community, in a spirit of curiosity, courage and…
To generate superior long-term investment returns to support The University of Texas and Texas A&M University systems as they provide world-class teaching, push the boundaries of discovery, and achieve excellence in patient healthcare for…
For reference, the grantee most central to the portfolio’s shape is The Methodist Hospital Foundation and the most unlike its peers is William Marsh Rice University. 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 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) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 19% 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.
24 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. 24 of the 42 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 Houston Grand Opera Association Inc ↗
- Who funds THE MUSEUM OF FINE ARTS HOUSTON ↗
- Who funds Bayou Bend Gardens Endowment ↗
- Who funds THE METHODIST HOSPITAL FOUNDATION ↗
- Who funds William Marsh Rice University ↗
- Who funds Texas Children's Hospital ↗
- Who funds The Kinkaid School Inc ↗
- Who funds REMIND ↗
- Who funds Houston's Amazing Place Inc ↗
- Who funds Camp Allen Camp & Conference Center ↗
- Who funds River Oaks Elementary School PTO ↗
- Who funds Hope and Healing Center & Institute ↗
- Who funds DEPELCHIN CHILDREN'S CENTER ↗
- Who funds Little League Baseball Inc 3431607 Post Oak LL ↗
- Who funds The Houston Food Bank ↗
- Who funds THE NATIONAL SOCIETY OF THE COLONIAL DAMES OF AMERICA ↗
- Who funds Houston Museum of Natural Science ↗
- Who funds Washington and Lee University ↗
- Who funds LSU HEALTH FOUNDATION NEW ORLEANS ↗
- Who funds Houston Pi Beta Phi Foundation ↗
- Who funds University of Houston Foundation ↗
- Who funds THE CHILDREN'S GRAND ADVENTURE DBA THE GRAND ADNEVTURE ↗
- Who funds BARBARA BUSH HOUSTON LITERACY FOUNDATION ↗
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 William Stamps Farish Fund · Albert & Ethel Herzstein Charitable Foundation · The Brown Foundation Inc · Shell USA Company Foundation · MD Anderson Foundation · The Methodist Hospital · Marek Family Foundation · The Powell Foundation · Strake Foundation · Natl Christian Charitable Fdn Inc · National Philanthropic Trust
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 Mary B & James K Jennings 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 Mary B & James K Jennings Charitable Foundation?
Find your warmest path to Mary B & James K Jennings 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.