New York · Private foundation
The G Harold & Leila y Mathers Charitable Foundation
Its FY2024 filing reports that it accepted unsolicited grant applications.
- $17M
- Granted FY2024(still arriving)
- 103
- Grants FY2024
- 49
- Organizations funded FY2023
- 20%
- First-time grantees FY2023
- Median grant, FY2024
- $225,000
- Largest grant, FY2024
- $277,200
- Organizations funded a year
- 30 to 49
- FY2017 to FY2023
- States reached, FY2024
- 14
- Total assets, FY2024
- $108M
- Applications
- Takes unsolicited applications
- Per its most recent filing; check its own site
How open it is to new grantees
In FY2023, 20% of the organizations The G Harold & Leila y Mathers Charitable Foundation funded were first-time grantees, receiving 14% of its grant dollars.
New vs renewed · share of each year
In FY2023, 86% of grant dollars renewed an existing relationship; $2.1M went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
The numbers by year
| Fiscal year | Organizations funded | To those organizations | First-time grantees |
|---|---|---|---|
| FY2024still arriving | 48 | $15M | 13% |
| FY2023 | 49 | $14M | 20% |
| FY2022 | 43 | $14M | 16% |
| FY2021 | 38 | $12M | 29% |
| FY2020 | 30 | $10M | 7% |
| FY2019 | 34 | $11M | 44% |
| FY2018 | 34 | $10M | 65% |
| FY2017 | 34 | $9.7M | n/a |
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.
Where its grants go
Grant dollars by states, across the years we hold.
Which US states its grants reach
Top grantees
Largest recipients by total granted, FY2017 to FY2024, and the share of each one’s budget the grants supplied at peak.
| Grantee | Total granted | Years | Share of their budget |
|---|---|---|---|
| Dana-Farber Cancer Institute Inc | $8,624,666 | 8 | 0% |
| The Rockefeller University | $6,171,647 | 7 | 0% |
| Children's Hospital Corporation | $4,277,513 | 4 | 0% |
| California Institute of Technology | $3,424,764 | 6 | 0% |
| Whitehead Institute for Biomedical Research | $3,308,040 | 8 | 1% |
| Yale University | $3,225,725 | 6 | n/a |
| Cold Spring Harbor Laboratory | $2,808,655 | 7 | 0% |
| The Wistar Institute of Anatomy and Biology | $2,548,870 | 6 | 1% |
| Yale University | $2,450,964 | 6 | n/a |
| Yale University | $2,386,302 | 6 | n/a |
Show all 50 grantees
What it could do for these grantees
Plus 57 recipients with no EIN on record ($36M), not named here.
Where it is load-bearing
The G Harold & Leila y Mathers Charitable Foundation supplied at least a quarter of the budget for 1 of its grantees at some point. The chart plots its 40 largest grantees; load-bearing ones sit top left.
Tap a dot to name the grantee.
How this is measured
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
Open a dossier: Montgomery Family Foundation Inc · Kenneth & Harle Montgomery Foundation · Vanguard Charitable Endowment Program · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation
How this is measured
Compare The G Harold & Leila y Mathers Charitable Foundation with peer funders
Warm introductions · Powered by PlinthPlus
How do I get to The G Harold & Leila y Mathers Charitable Foundation?
Find your warmest path to The G Harold & Leila y Mathers Charitable 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.
About The G Harold & Leila y Mathers Charitable Foundation
- How much does The G Harold & Leila y Mathers Charitable Foundation give?
- The G Harold & Leila y Mathers Charitable Foundation reported 103 grants totaling $17,273,778 in its FY2024 IRS filing. It funded between 30 and 49 organizations a year over FY2017 to FY2023.
- What does The G Harold & Leila y Mathers Charitable Foundation fund?
- By grant dollars over FY2017 to FY2024, its largest causes are Education (42%), Health (39%), Science & Tech (17%).
- Who are The G Harold & Leila y Mathers Charitable Foundation's largest grantees?
- By total granted over FY2017 to FY2024: Dana-Farber Cancer Institute Inc ($8.6M), The Rockefeller University ($6.2M), Children's Hospital Corporation ($4.3M).
- Does The G Harold & Leila y Mathers Charitable Foundation fund new organizations?
- In FY2023, 20% of the organizations it funded were first-time grantees.
- Does The G Harold & Leila y Mathers Charitable Foundation accept unsolicited applications?
- Its most recent filing reports that it accepts unsolicited grant applications.
- Which funders back the same organizations as The G Harold & Leila y Mathers Charitable Foundation?
- Its strongest co-funders, measured against what their size predicts, include Montgomery Family Foundation Inc, Kenneth & Harle Montgomery Foundation, Vanguard Charitable Endowment Program.
- Where is The G Harold & Leila y Mathers Charitable Foundation based?
- The G Harold & Leila y Mathers Charitable Foundation is based in NY.
Play a game based on G Harold & Leila y Mathers’ filings →