· Private foundation
Mark and Mary Ann Miller 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 $10k12 grants · $29k
- $10k–50k2 grants · $45k
- $50k–250k1 grant · $66k
| Recipient | Amount |
|---|---|
| Christ the King Presbyterian Church | $65,550 |
| Contemporary Arts Museum Houston | $27,850 |
| Glacier National Park Concervancy | $17,500 |
| River Oaks Chamber Orchestra | $7,500 |
| Camp Blessing | $5,000 |
| SpringSpirit Inc | $5,000 |
| Healthier Texas (It's Time Texas Inc) | $2,500 |
| Houston Freedmen's Town Conservancy Inc | $2,500 |
| Buffalo Bayou Partnership Inc | $2,100 |
| Breakthrough T1D - Southern Texas Chapter | $1,000 |
| PTSD Foundation of America (Camp Hope) | $1,000 |
| Easter Seals of Greater Houston Inc | $1,000 |
| Second Servings of Houston | $500 |
| Houston SPCA | $500 |
| Friends of River Oaks Park | $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 (FY17–23, $38k) land where the poverty rate runs at 11%, against an area that typically sits at 12%. 20% 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.
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 +39% since the first grant, against +21% for the ones you funded once.
18 repeat relationships — 8 still active in FY2024, 10 since wound down; 7 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, 48% of grant dollars renewed an existing relationship; $73k 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
- CAContemporary Arts Museum Houston8× · 2017–2024 · $124k · revenue +150%
GLACIER NATIONAL PARK CONSERVANCY5× · 2017–2024 · $90k · revenue +125%
The Houston Food Bank4× · 2020–2023 · $18k · revenue +36%
Funded once
- RFRathmell Family Foundationgraduatedone grant, 2019 · $60k · revenue +36% · 64% of their budget
- BOBOXES OF BLESSINGone grant, 2019 · $6k · revenue -52%
- ANAmerican National Red Cross & Its Constituent Chapters and Branchesone grant, 2022 · $5k · revenue +23%
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.
Plant, protect and promote trees all over the greater Houston area.
To enrich life through discovery, education, and the conservation of plants and the natural environment.
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…
Rebuilding Together Houston is the only organization in Houston and Harris County providing free home repairs to hundreds of families each year. We employ licensed contractors to restore homes to safe, livable conditions, extending each…
As the Houston affiliate of the National Christian Foundation (NCF), our mission is to serve and encourage givers to grow as faithful stewards who give wisely to further the Gospel of Jesus Christ.
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…
Founded as a Christian ministry of healing, Baylor Scott & White Health promotes the well-being of all individuals, families and communities.
Amazing Place empowers families facing the challenges of dementia and Alzheimer's and advances brain health for all. The Organization serves adults with mild cognitive impairment and mild to moderate dementia, caregiving families and…
The Houston Local Information Initiative, Inc. provides public service journalism that reflects the civic needs of the diverse communities comprising Greater Houston.
See Schedule OThe Women's Resource of Greater Houston helps women and girls make choices toward becoming independent, productive, and financially stable. We fulfill our mission by recruiting volunteer instructors to deliver our programs in…
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…
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.
For reference, the grantee most central to the portfolio’s shape is Easter Seals of Greater Houston Inc and the most unlike its peers is Rathmell Family 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 22 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 1% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 17% 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.
31 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. 31 of the 45 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 Contemporary Arts Museum Houston ↗
- Who funds GLACIER NATIONAL PARK CONSERVANCY ↗
- Who funds Rathmell Family Foundation ↗
- Who funds YELLOWSTONE ACADEMY INC DBA YELLOWSTONE SCHOOLS ↗
- Who funds IT'S TIME TEXAS INC ↗
- Who funds The Houston Food Bank ↗
- Who funds Houston Arboretum & Nature Center ↗
- Who funds PTSD FOUNDATION OF AMERICA ↗
- Who funds River Oaks Chamber Orchestra ↗
- Who funds THE SOURCE FOR WOMEN ↗
- Who funds SpringSpirit Inc ↗
- Who funds BOXES OF BLESSING ↗
- Who funds Life House ↗
- Who funds Houston Freedmen's Town Conservancy Inc ↗
- Who funds American National Red Cross & Its Constituent Chapters and Branches ↗
- Who funds CAMP BLESSING INC ↗
- Who funds TEXAS GOLF HALL OF FAME & MUSEUM (AUDIT) ↗
- Who funds WORLD CENTRAL KITCHEN INC ↗
- Who funds EASTER SEALS OF GREATER HOUSTON INC ↗
- Who funds Southern Smoke Foundation ↗
- Who funds DEPELCHIN CHILDREN'S CENTER ↗
- Who funds Buffalo Bayou Partnership Inc ↗
- Who funds ALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC ↗
- Who funds Nick Finnegan Counseling Center Foundation ↗
- Who funds Combined Arms ↗
- Who funds SECOND SERVINGS OF HOUSTON ↗
- Who funds HOUSTON SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS ↗
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 · Albert & Ethel Herzstein Charitable Foundation · The Brown Foundation Inc · Shell USA Company Foundation · Houston Texans Foundation · Houston Endowment Inc · Kayne Anderson Capital Advisors Foundation · Sterling-Turner Foundation · The Elkins Foundation · Harry S & Isabel C Cameron Foundation Sentinel Trust Company · Alice Kleberg Reynolds Meyer Foundat A0479800 · Strake 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 Mark and Mary Ann Miller 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.
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Find your warmest path to Mark and Mary Ann Miller 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.