· Private foundation
Elizabeth T Heim & Margaret L Rigby
Its FY2026 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2025.
Where the money goes
Grants by size, and the largest recipients.
By grant size · FY2026
- $10k–50k9 grants · $233k
- $50k–250k2 grants · $156k
| Recipient | Amount |
|---|---|
| MAYO CLINIC FOUNDATION | $97,286 |
| MENTAL HEALTH AMERICA INC | $58,372 |
| JOHNS HOPKINS HOSPITAL | $38,914 |
| AMERICAN HEART ASSOCIATION INC | $38,914 |
| MEMORIAL SLOAN-KETTERING CANCER | $38,914 |
| GLAUCOMA RESEARCH FOUNDATION | $19,457 |
| MASONIC MEDICAL RESEARCH LAB | $19,457 |
| UNIVERSITY OF MIAMI-OPHTHALMOLOGY | $19,457 |
| THE ARTHRITIS RESEARCH INSTITUTE | $19,457 |
| NATIONAL OSTEOPOROSIS FOUNDATION | $19,457 |
| NATIONAL FOUNDATION FOR CANCER RESEARCH | $19,457 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Dollar for dollar, its grants (FY18–26) land where the poverty rate runs at 12%, against an area that typically sits at 13%. 39% of its dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.
How this is measured
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
14 repeat relationships: 10 still active in FY2026, 4 since wound down; 1 grantees were first funded in FY2026 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Still filing today
New vs renewed · share of each year
In FY2026, 75% of grant dollars renewed an existing relationship; $97k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
- MHMENTAL HEALTH AMERICA INC9× · 2018–2026 · $372k · revenue +168%
- AHAmerican Heart Association Inc9× · 2018–2026 · $248k · revenue +26%
JOHNS HOPKINS UNIVERSITY7× · 2018–2024 · $186k · revenue +51%
Funded once
- MCMAYO CLINIC FOUNDATIONone grant, 2026 · $97k
How this is measured
Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.
7 grantees tracked through their own filings, 2017–2026.
Each grant beside the grantee’s revenue from every source, year by year.
How this is measured
Counted here: distinct organizations funded across 2017 to 2026, not grant rows in a single year, so this will not match the grant count on the cover. 7 of the 15 grantees resolved in that span have returns of their own we could reconcile.
Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
Grantee by grantee: a decade per organization, before and after funding
A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.
How much its grantees rely on government
Each dot is one organization Elizabeth T Heim & Margaret L Rigby funds: left to right is the share of its income from government, bottom to top the share from Elizabeth T Heim & Margaret L Rigby. Bigger dots raise more.
- Johns Hopkins University: 12% of income from government
- University of Miami: 5% of income from government
- The Johns Hopkins Hospital: 0% of income from government
How this is measured
Play a game based on Elizabeth T Heim & Margaret L Rigby’s filings →