New Jersey · Private foundation
Helen & William Mazer 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.
- $975k
- Granted FY2025(still arriving)
- 119
- Grants FY2025
- 109
- Organizations funded FY2024
- 18%
- First-time grantees FY2024
- Median grant, FY2025
- $2,500
- Largest grant, FY2025
- $55,000
- Organizations funded a year
- 95 to 109
- FY2020 to FY2024
- States reached, FY2025
- 17
- Total assets, FY2025
- $17M
- Applications
- Preselected organizations only
- Per its most recent filing; check its own site
How open it is to new grantees
In FY2024, 18% of the organizations Helen & William Mazer Foundation funded were first-time grantees, receiving 18% of its grant dollars.
New vs renewed · share of each year
In FY2024, 82% of grant dollars renewed an existing relationship; $164k 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 |
|---|---|---|---|
| FY2025still arriving | 117 | $895k | 21% |
| FY2024 | 109 | $893k | 18% |
| FY2023 | 109 | $960k | 21% |
| FY2022 | 103 | $852k | 21% |
| FY2021 | 95 | $730k | 36% |
| FY2020 | 95 | $743k | n/a |
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2025.
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, FY2020 to FY2025, and the share of each one’s budget the grants supplied at peak.
| Grantee | Total granted | Years | Share of their budget |
|---|---|---|---|
| Conservation Law Foundation Inc | $268,000 | 6 | 0% |
| The Rockefeller University | $230,000 | 6 | 0% |
| The Trustees of Reservations | $181,000 | 6 | 0% |
| Boston Cyclists Union Inc | $159,500 | 5 | 13% |
| Mdrc | $157,000 | 5 | 0% |
| Ubuntu Pathways Inc | $155,000 | 6 | 2% |
| Open Space Institute Inc | $140,000 | 6 | 1% |
| The Innocence Project Inc | $108,000 | 6 | 0% |
| Spring Street Climate Fund Inc | $83,000 | 2 | 2% |
| International Rescue Committee INC | $80,000 | 6 | 0% |
Show all 140 grantees
What it could do for these grantees
Plus 79 recipients with no EIN on record ($2.2M), not named here.
Where it is load-bearing
Each grantee by its size and the share of its budget Helen & William Mazer Foundation supplied at peak.
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: The Community Foundation for Greater New Haven · Investors Foundation Inc · The Hyde and Watson Foundation · Ej Grassmann Trust · Barr Foundation · S&P Global Foundation Fka the McGraw-Hill Research Foundation · Pseg Foundation Inc · Community Foundation of New Jersey · Eastern Bank Foundation · The Summit Foundation · Seedlings Foundation · William Caspar Graustein Memorial Fund
How this is measured
Warm introductions · Powered by PlinthPlus
How do I get to Helen & William Mazer Foundation?
Find your warmest path to Helen & William Mazer 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 Helen & William Mazer Foundation
- How much does Helen & William Mazer Foundation give?
- Helen & William Mazer Foundation reported 119 grants totaling $975,000 in its FY2025 IRS filing. It funded between 95 and 109 organizations a year over FY2020 to FY2024.
- What does Helen & William Mazer Foundation fund?
- By grant dollars over FY2020 to FY2025, its largest causes are Environment (29%), Education (16%), Arts & Culture (5%).
- Who are Helen & William Mazer Foundation's largest grantees?
- By total granted over FY2020 to FY2025: Conservation Law Foundation Inc ($268k), The Rockefeller University ($230k), The Trustees of Reservations ($181k).
- Does Helen & William Mazer Foundation fund new organizations?
- In FY2024, 18% of the organizations it funded were first-time grantees.
- Does Helen & William Mazer Foundation accept unsolicited applications?
- Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
- Which funders back the same organizations as Helen & William Mazer Foundation?
- Its strongest co-funders, measured against what their size predicts, include The Community Foundation for Greater New Haven, Investors Foundation Inc, The Hyde and Watson Foundation.
- Where is Helen & William Mazer Foundation based?
- Helen & William Mazer Foundation is based in NJ.
Play a game based on Helen & William Mazer’s filings →