· Private foundation
The Mayday Fund
Its FY2020 filing reports that it accepted unsolicited grant applications.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2019
- Under $10k2 grants · $4k
- $10k–50k6 grants · $181k
- $50k–250k9 grants · $627k
| Recipient | Amount |
|---|---|
| UNIVERSITY OF TORONTO - UNIVERSITY HEALTH NETWORK | $100,833 |
| UNIVERSITY OF TEXAS MEDICAL BRANCH | $82,500 |
| BOSTON CHILDREN'S HOSPITAL | $77,569 |
| STANFORD UNIVERSITY SCHOOL OF MEDICINE AND LUCILLE PACKARD CHILDREN'S HOSPI | $77,000 |
| REGENTS OF THE UNIVERSITY OF CALIFORNIA UC DAVIS SCHOOL OF NURSING | $66,000 |
| MASSACHUSETTS GENERAL HOSPITAL | $57,442 |
| THE AMERICAN PAIN SOCIETY | $56,000 |
| UNIVERSITY OF NORTH CAROLINA | $55,000 |
| MEMORIAL SLOAN KETTERING CANCER CENTER | $54,853 |
| HOSPITAL FOR SICK CHILDREN FOUNDATIONSICK KIDS FOUNDATION | $39,057 |
| CONNECTICUT CHILDREN'S MEDICAL CENTER | $33,000 |
| DALHOUSIE MEDICAL RESEARCH FOUNDATION | $33,000 |
| CHILDREN'S HOSPITALS AND CLINICS OF MINNESOTA | $27,500 |
| BOSTON CHILDREN'S HOSPITAL | $27,500 |
| SEATTLE CHILDREN'S HOSPITAL FOUNDATION | $20,650 |
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 US giving — 79% of grant dollars ($639k). The need read here covers only this US portion; the 21% that went abroad ($173k) is mapped below.
Dollar for dollar, your grants (FY19–19) land where the poverty rate runs at 13%, against an area that typically sits at 9%. 85% of your 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
Beyond the US — 21% of all-years giving ($173k)
1 country, by the recipient’s country on the filing.
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. International giving is mapped by the recipient’s country from the same 990filings; comparable need data isn’t available at that grain.
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 children's hospital of philadelphia, the oldest hospital in the united states dedicated exclusively to pediatrics, strives to be the world leader in the advancement of health care for children by integrating excellent patient care,…
The mission of children's hospital & research center at oakland is to protect and advance the health and well-being of children through clinical care, teaching and research.
The Organization operates exclusively for the benefit of the charitable purposes of Boston Children's Hospital (the Hospital) and the affiliated Foundations. It works jointly with the Hospital and the Foundations in developing and…
Pediatric healthcare, education & research
Phoenix children's hospital foundation supports phoenix children's hospital through fundraising ensuring that the hospital continues to stay on the leading edge of pediatric medicine and is equipped to fulfill its mission to advance hope,…
The Foundation's mission is to provide pathology services primarily to patients at Boston Children's Hospital and at satellite locations. The Foundation carries on and promotes basic and applied medical research and education in the field…
Mission: johns hopkins all children's hospital (all children's), a member of johns hopkins medicine, strives to provide the highest quality care to improve the health of our entire community through innovation, collaboration, service…
Children's physicians delivers the highest quality pediatric primary care while supporting education and research.
The Foundation provides medical and health care services primarily to patients at Boston Children's Hospital, and at satellite locations. The Foundation carries on and promotes basic and applied medical research and education in the field…
Children's hospital of pittsburgh foundation is the sole fundraising arm of upmc children's hospital of pittsburgh.the foundation exists to provide financial support for the hospital's mission of improving the health and well-being of…
Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.
The corporation is organized for charitable, educational and scientific purposes, and to provide healthcare services of pediatric specialty physicians and other personnel to the patients of johns hopkins all children's hospital and…
For reference, the grantee most central to the portfolio’s shape is Children's Hospital Corporation and the most unlike its peers is Children's Health Care. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
8 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. 8 of the 16 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 Children's Hospital Corporation ↗
- Who funds AMERICAN PAIN SOCIETY ↗
- Who funds MEMORIAL SLOAN-KETTERING CANCER CENTER ↗
- Who funds CONNECTICUT CHILDREN'S MEDICAL CENTER ↗
- Who funds CHILDREN'S HEALTH CARE ↗
- Who funds Seattle Children's Foundation ↗
- Who funds Council on Foundations Inc ↗
- Who funds PHILANTHROPY NEW YORK INC ↗
Government reliance of your grantees
Every dot is one organization The Mayday Fund 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, a single department, or state — and drag the year to watch it move.
- Children's Hospital Corporation — 10% of income from government
- Connecticut Children's Medical Center — 5% of income from government
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 Mayday Fund?
Find your warmest path to The Mayday Fund 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.