· Private foundation
The Ralph H and Ruth J McCullough 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 FY2018–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k26 grants · $123k
- $10k–50k32 grants · $478k
| Recipient | Amount |
|---|---|
| AMAZING PLACE | $25,000 |
| TEXAS CHILDREN'S HOSPITAL | $25,000 |
| MOODY-BRADLEY HOUSE FOUNDATION | $25,000 |
| PHI DELTA THETA FOUNDATION | $25,000 |
| COUNCIL ON RECOVERY | $25,000 |
| OAKBEND MEDICAL CENTER | $25,000 |
| FORT BEND CHRISTIAN ACADEMY | $20,000 |
| SEEDS OF HOPE | $20,000 |
| ATASCOCITA METHODIST CHURCH | $20,000 |
| THRIVE LEARNING CENTER | $20,000 |
| THE PERIWINKLE FOUNDATION | $15,000 |
| GLOBAL KIDS INC | $15,000 |
| STUDENT MOBILIZATION | $15,000 |
| CHILDREN'S CANCER FUND OF DALLAS INC | $15,000 |
| YOUNG LIFE | $15,000 |
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 (FY18–25, $96k) land where the poverty rate runs at 14%, against an area that typically sits at 10%. 84% 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 +13% since the first grant, against +3% for the ones you funded once.
81 repeat relationships — 37 still active in FY2025, 44 since wound down; 20 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, 59% of grant dollars renewed an existing relationship; $245k 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
- PDPhi Delta Theta Foundation8× · 2018–2025 · $318k · revenue +12%
- HMHOUSTON MARITIME MUSEUM6× · 2019–2024 · $145k · revenue +276%
HOUSTON LIVESTOCK SHOW AND RODEO INC7× · 2018–2024 · $145k · revenue +64%
Funded once
- CMCHILDREN'S MEDICAL CENTER FOUNDATIONgraduatedone grant, 2023 · $45k · revenue +209%
- FCFREESTONE COUNTY MUSEUMone grant, 2023 · $25k
- HAHope and Healing Center & Instituteone grant, 2021 · $20k · revenue +3%
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.
Founded as a Christian ministry of healing, Baylor Scott & White Health (BSWH) promotes the well-being of all individuals, families and communities.
To recognize the accomplishments and contributions of our outstanding Texas business leaders and to perpetuate and inspire the values of entrepreneurial spirit, personal integrity, and community leadership in all generations of Texans.
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…
Founded as a Christian ministry of healing, Baylor Scott & White Health (BSWH) promotes the well-being of all individuals, families and communities.
Plant, protect and promote trees all over the greater Houston area.
The witte museum inspires people to shape the future of texas through transformative and relevant experiences in nature, science and culture.
Founded as a Christian ministry of healing, Baylor Scott & White Health promotes the well-being of all individuals, families and communities.
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…
TWCA is an independent, Christ-centered college preparatory school that integrates learning with biblical faith and challenges our students to reach their highest potential - intellectually, creatively, physically, and socially - for the…
Founded as a Christian ministry of healing, Baylor Scott & White Health (BSWH) promotes the well-being of all individuals, families and communities.
Founded as a Christian ministry of healing, Baylor Scott & White Health (BSWH) promotes the well-being of all individuals, families and communities.
To foster and support the activities and purposes of Baylor Scott & White Health (BSWH), to encourage broad-based public support of the healthcare system and its affiliated institutions, and to advance the medical objectives, including…
For reference, the grantee most central to the portfolio’s shape is Texas Children's Hospital and the most unlike its peers is Bach Society Houston. 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 27 years old; the field is 12. You back the established end — and your money leans older still.
The field is 26% startups (under 5 years old) — 3% of your grantees by number, and just 4% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 15% 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.
89 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. 89 of the 140 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 Phi Delta Theta Foundation ↗
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- Who funds CHARITIES AID FOUNDATION AMERICA ↗
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 William a and Madeline Welder Smith Foundation Attn Kay Parker · Greater Houston Community Foundation · Albert & Ethel Herzstein Charitable Foundation · The Brown Foundation Inc · Strake Foundation · Shell USA Company Foundation · The Moody Foundation · Houston Endowment Inc · The John M O'Quinn Foundation · Sterling-Turner Foundation · MD Anderson Foundation · Vivian L Smith 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 Ralph H and Ruth J McCullough 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 Ralph H and Ruth J McCullough Foundation?
Find your warmest path to The Ralph H and Ruth J McCullough 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.