· Private foundation
The Margaret Blanke Grigg 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 placed by its stated purpose and the recipient’s mission, by year — across FY2019–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k4 grants · $18k
- $10k–50k12 grants · $295k
- $50k–250k5 grants · $420k
- $250k+1 grant · $269k
| Recipient | Amount |
|---|---|
| St Louis Symphony Foundation | $269,000 |
| Missouri Botanical Garden | $84,000 |
| St Louis Art Museum | $84,000 |
| St Louis Science Center | $84,000 |
| Oasis Institute | $84,000 |
| St Louis Area Food Bank | $84,000 |
| Bethesdal Health Group Foundation | $48,000 |
| Washington University | $35,000 |
| Opera Theatre of St Louis | $30,000 |
| Goldfarb School of Nursing | $30,000 |
| Sheldon Art Foundation | $30,000 |
| Character Plus | $24,000 |
| Foundation for Fighting Blindness | $24,000 |
| St Andrews Society for Seniors | $18,000 |
| Loaves and Fishes | $18,000 |
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 (FY23–25, $96k) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 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.
23 repeat relationships — 21 still active in FY2025, 2 since wound down; 1 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Still filing today
New vs renewed · share of each year
In FY2025, 95% of grant dollars renewed an existing relationship; $48k 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
- MBMISSOURI BOTANICAL GARDEN BOARD OF TRUSTEES5× · 2019–2025 · $344k · revenue +37%
- OTOpera Theatre of Saint Louis5× · 2019–2025 · $290k · revenue +13%
WASHINGTON UNIVERSITY5× · 2019–2025 · $145k · revenue +44%
Funded once
- SLSt. Louis Symphony Foundationone grant, 2022 · $225k
- SLSt. Louis Art Museumone grant, 2022 · $70k
- SLSt. Louis Science Centerone grant, 2022 · $70k
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 muny is a non-profit 501(c)(3) organization whose mission is to enrich lives by producing exceptional musical theatre accessible to all, continuing its remarkable tradition in forest park.
The saint louis zoo association was established to support and enhance the saint louis zoo by providing facilities, funds, and advice. the association provides direct financial support to the zoo for renovations, new facilities, programs,…
The sole purpose of the foundation is to support the saint louis art museum, including but not limited to fundraising and other activities and assisting in financing expansion and renovation of its facilities.
Greater st. louis, inc. brings together business and civic leaders to create jobs, drive inclusive economic growth, and increase the st. louis metro area's global competitiveness. we speak with a unified voice, lead with a bold agenda, and…
Jewish federation of st. louis mobilizes the jewish community and its human and financial resources to preserve and enhance jewish life in st. louis, in israel and around the world.
To promote the possibilities of charitable giving, helping charitable citizens understand how they can effectively provide for the community they love and the causes they care deeply about.
Under the medical service plan of the university of maryland school of medicine, medical services are rendered by the members of the faculty on behalf of the school of medicine in connection with their duties to provide clinical…
The missouri western state university foundation is a not-for-profit charitable organization that functions solely to support the mission of missouri western state university, as stated in the university's mission statement. the foundation…
Under the medical service plan of the university of maryland school of medicine, medical services are rendered by the members of the faculty on behalf of the school of medicine in connection with their duties to provide clinical…
Support the st. louis science center and its comprehensive array of educational outreach programs to the community in order to increase interest, understanding and enthusiasm for stem (science, technology, engineering and mathematics).
Under the medical service plan of the university of maryland school of medicine, medical services are rendered by the members of the faculty on behalf of the school of medicine in connection with their duties to provide clinical…
Mission: st. louis empowers individuals for social and economic growth through relationships and opportunity.
For reference, the grantee most central to the portfolio’s shape is Missouri Botanical Garden Board of Trustees and the most unlike its peers is The Foundation Fighting Blindness Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
14 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. 14 of the 29 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 MISSOURI BOTANICAL GARDEN BOARD OF TRUSTEES ↗
- Who funds Opera Theatre of Saint Louis ↗
- Who funds MISSOURI HISTORICAL SOCIETY ↗
- Who funds WASHINGTON UNIVERSITY ↗
- Who funds ST LOUIS AREA FOOD BANK INC ↗
- Who funds THE OASIS INSTITUTE ↗
- Who funds THE FOUNDATION FIGHTING BLINDNESS INC ↗
- Who funds THE SHELDON ARTS FOUNDATION ↗
- Who funds CHARACTERPLUS ↗
- Who funds GRAND CENTER INC ↗
- Who funds LOAVES & FISHES INC ↗
- Who funds BETHESDA HEALTH GROUP FOUNDATION INC ↗
- Who funds Forest Park Forever Inc ↗
- Who funds ST LOUIS SHAKESPEARE FESTIVAL ↗
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: Edward Jones Foundation · St Louis Community Foundation · St Louis Community Foundation Inc · Stanley & Lucy Lopata Foundation · Jordan Mary R & Ettie a Charitable · Trio Foundation of St Louis · Regional Cultural and Performing Arts Development Commission · Centene Foundation · World Wide Technology Foundation · United Way of Greater St Louis Inc · Commerce Bancshares Foundation · The Blackbaud Giving Fund
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 Margaret Blanke Grigg 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 Margaret Blanke Grigg Foundation?
Find your warmest path to The Margaret Blanke Grigg 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.