· Public charity
Houston Marathon Foundation
Houston Marathon Foundation supports the advancement of running as an element of a balanced, healthy life in the Houston community and nationally.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2018–2025.
Where the money goes
Your grants by size, and where they go.
The 3 grants below total $75,000 — the rows itemised in this filing. The $189,265 headline is the total grant expense reported on the return, so the remaining $114,265 is giving the schedule does not break out: grants under the $5,000 itemisation floor, grants to individuals, and grants reported on other schedules. Every figure below describes the itemised rows only.
| Recipient | Amount |
|---|---|
| Houston Area Parkinson's Society | $25,000 |
| Houston Haven Ministry | $25,000 |
| The Arbor School | $25,000 |
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 (FY18–24, $210k) land where the poverty rate runs at 14%, against an area that typically sits at 11%. 67% 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 +45% since the first grant, against 0% for the ones you funded once.
13 repeat relationships — 3 still active in FY2025, 10 since wound down.
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, 100% of grant dollars renewed an existing relationship; $0 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
- HAHouston Area Parkinson Society4× · 2018–2025 · $85k · revenue +45%
- TATHE ARBOR SCHOOL4× · 2019–2025 · $85k · revenue +83%
- FIFYIMS INC3× · 2020–2023 · $75k · revenue +27%
Funded once
- FFFRIENDS FOR LIFEone grant, 2024 · $25k · revenue 0%
- MAMADE A MASTERPIECEone grant, 2022 · $25k · revenue -56%
- FFFARIS FOUNDATIONone grant, 2024 · $25k · revenue 0%
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.
Seeking to put God's love into action, Houston Habitat for Humanity brings people together to build homes, communities and hope to provide a world where everyone has a decent place to live.
Hmm health provides quality healthcare to all its neighbors with love, compassion, and respect.
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…
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 mission of Family Service Center of Houston and Harris County (Family Houston) is to create a stronger community for tomorrow by helping individuals and families meet the challenges they face today. We help others help themselves.
Houston Marathon Foundation supports the advancement of running as an element of a balanced, healthy life in the Houston community and nationally.
LifeHouse is a Christ-centered ministry ensuring life for unborn children by providing opportunities for housing, help, and hope for young women during their pregnancies and beyond.
Plant, protect and promote trees all over the greater Houston area.
To promote wellness, enriching the lives of people with intellectual and developmental disabilities and their families.
Camp Aranzazu cultivates belonging for campers of all ages and abilities by creating accessible, empowering and intentional camp experiences.
Halo House's mission is to help save the lives of cancer patients battling leukemia, lymphoma, or myeloma by providing them with low-cost, fully furnished temporary housing while undergoing active cancer treatment at the Texas Medical…
The Hospice at the Texas Medical Center holds a freestanding 37 bed inpatient facility in the Texas Medical Center that is operated and managed by Houston Hospice.
For reference, the grantee most central to the portfolio’s shape is Child Advocates Inc and the most unlike its peers is Minnesota Distance Elite. 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 31 years old; the field is 10. You back the established end — and your money leans older still.
The field is 31% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 3% 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.
32 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.
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 Area Parkinson Society ↗
- Who funds THE ARBOR SCHOOL ↗
- Who funds FYIMS INC ↗
- Who funds HOUSTON HAVEN MINISTRY ↗
- Who funds CANCARE INC ↗
- Who funds STEEL MAGNOLIA MOMS ↗
- Who funds Living Water International ↗
- Who funds GIRLS ON THE RUN GREATER HOUSTON ↗
- Who funds Bo's Place ↗
- Who funds DRESS FOR SUCCESS HOUSTON ↗
- Who funds MINNESOTA DISTANCE ELITE ↗
- Who funds ZAP FITNESS FOUNDATION INC ↗
- Who funds FRIENDS FOR LIFE ↗
- Who funds MADE A MASTERPIECE ↗
- Who funds FARIS FOUNDATION ↗
- Who funds Addis Faith Foundation ↗
- Who funds NAZ ELITE INC ↗
- Who funds 3 A BEREAVEMENT FOUNDATION ↗
- Who funds CHILD ADVOCATES INC ↗
- Who funds RONALD MCDONALD HOUSE CHARITIES GREATER HOUSTON INC ↗
- Who funds American Heart Association Inc ↗
- Who funds HOUSTON SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS ↗
- Who funds THE SUNSHINE KIDS FOUNDATION ↗
- Who funds Sole Loved Shoes Inc ↗
- Who funds BEL INIZIO INC ↗
- Who funds WEST HOUSTON ASSISTANCE MINISTRIES INC ↗
- Who funds Children's Assessment Center Foundation ↗
- Who funds Counseling Connections for Change Inc ↗
- Who funds TEAM CATAPULT ↗
- Who funds Avondale House Inc ↗
- Who funds ALZHEIMERS TEXAS INC ↗
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: Shell USA Company Foundation · Greater Houston Community Foundation · Baker Hughes Foundation · The Junior League of Houston Inc · Albert & Ethel Herzstein Charitable Foundation · Harry S & Isabel C Cameron Foundation Sentinel Trust Company · Strake Foundation · Midway Foundation · The Methodist Hospital · Fred and Mabel R Parks Foundation · Sterling-Turner Foundation · Halliburton Charitable 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 Houston Marathon 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 Houston Marathon Foundation?
Find your warmest path to Houston Marathon 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.