Helen & William Mazer Foundation
The Helen & William Mazer Foundation is a private family foundation established in 1999 and incorporated in Delaware. Based in Berkeley Heights, New Jersey, the foundation focuses on charitable giving across education, human services, and philanthropic support.
Financial Overview
From 2025 IRS Form 990-PF · View filing
Total Assets
$17.3M
+0.3% YoY
Annual Giving
$975K
+3.4% YoY
Grant Count
119
+8.2% YoY
Avg Grant Size
$8K
-4.4% YoY
Under IRS private-foundation payout rules, Helen & William Mazer Foundation reported a distributable amount of $940K for 2025 — the minimum it must pay out in qualifying distributions.
Mission & Focus Areas
The foundation's primary funding interests include:
- Education — with particular emphasis on science education and STEM
- Human Services
- Philanthropy, Voluntarism & Grantmaking
The foundation supports charitable purposes broadly, with a geographic concentration in New York, New Jersey, and Massachusetts.
Grantmaking
Grant Range
s & Activity:**
Ready to take the next step with Helen & William Mazer Foundation?
Geographic Focus
Where this funder awards grants
The foundation primarily funds organizations in New York, New Jersey, and Massachusetts.
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
Assets & Revenue (as of 2024):
- Total assets: $17,292,778 to $17,345,449
- Total annual giving: $975,000
- Total revenues: $1,745,613
- Total expenses: $1,108,876
- Investment income and dividends: $598,387
Staffing:
- The foundation operates with no employees
| Metric | 2025 | 2024 | 2023 |
|---|---|---|---|
| Total Assets | $17,345,449 | $17,292,778 | $16,656,041 |
| Revenue | $1,214,066 | $1,745,613 | $673,529 |
| Expenses | $1,159,645 | $1,108,876 | $1,194,896 |
| Qualifying Distributions | $999,851 | $975,440 | $1,103,065 |
| Net Investment Income | $1,094,228 | $1,612,177 | $531,698 |
| Distributable Amount | $939,544 | $984,345 | $1,104,777 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
Grant Size Distribution
250 grants across all recorded years
Giving History
Grant recipients and amounts by year
Among its reported 2025 grants, the largest include East Coast Greenway ($55,000), Brandeis University ($50,000), Conservation Law Foundation ($48,000).
| Recipient | Purpose | Amount |
|---|---|---|
| AMERICANS FOR OXFORD NEW YORK, NY | CHARITABLE PURPOSES. | $1,000 |
| AMREF NEW YORK, NY | CHARITABLE PURPOSES. | $5,000 |
| ANJEC MENDHAM, NJ | CHARITABLE PURPOSES. | $4,000 |
| ARNOLD P GOLD FOUNDATION FORT LEE, NJ | CHARITABLE PURPOSES. | $1,000 |
| BARRED ROCK FUND INC JERICHO, VT | CHARITABLE PURPOSES. | $10,000 |
| BENNINGTON COLLEGE BENNINGTON, VT | CHARITABLE PURPOSES. | $20,000 |
| BIKES NOT BOMBS JAMAICA PLAIN, MA | CHARITABLE PURPOSES. | $1,000 |
| BRANDEIS UNIVERSITY WALTHAM, MA | CHARITABLE PURPOSES. | $50,000 |
| BREAKTHROUGH T1D NEW YORK, NY | CHARITABLE PURPOSES. | $30,000 |
| BREAST CANCER EMERGENCY AID FOUNDATION INC WESTPORT, CT | CHARITABLE PURPOSES. | $1,000 |
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
From 2025 IRS filing
From 2025 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| LINDA BERKOWITZ | PRESIDENT | 0.5 | — |
| LEONARD BERKOWITZ | TREASURER | 2 | — |
| ALAN BERKOWITZ | DIRECTOR | 0.5 | — |
| DAVID BERKOWITZ | DIRECTOR | 0.5 | — |
| STEVEN BERCU | DIRECTOR | 2 | $9,500 |
Contact Information
Helen & William Mazer Foundation PO Box 542 Berkeley Heights, NJ 07922-0542 United States
Telephone: 908-464-8221
EIN: 02-0511160
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What does Helen & William Mazer Foundation fund?
The foundation's primary funding interests include: • **Education** — with particular emphasis on science education and STEM • **Human Services** • **Philanthropy, Voluntarism & Grantmaking** The foundation supports charitable purposes broadly, with a geographic concentration in New York, New Jersey, and Massachusetts.
How do I apply for a grant from Helen & William Mazer Foundation?
**Grant Sizes & Activity:** • Typical grant awards range from $150 to $85,000 • Total annual giving: $975,000 (most recent data) • The foundation made 107 grants in its most recent fiscal year **Recent Grants (2024):** • The Trustees of Reservations: $55,000 • Psi Chi - Brandeis University: $50,000 • Conservation Law Foundation: $45,000 • Additional 74 grants totaling $644,250
Where does Helen & William Mazer Foundation make grants?
The foundation primarily funds organizations in New York, New Jersey, and Massachusetts.
What size grants does Helen & William Mazer Foundation award?
In 2025, Helen & William Mazer Foundation awarded 119 grants totaling $975K — an average of about $8K per grant, based on its IRS Form 990 filings.
How much is Helen & William Mazer Foundation required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2025, Helen & William Mazer Foundation reported a distributable amount of $940K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is Helen & William Mazer Foundation's EIN?
Helen & William Mazer Foundation's EIN (Employer Identification Number) is 02-0511160. IRS Form 990 filing data is available on this page for 2020–2025.
Explore Open Grants
Browse active grant opportunities in Helen & William Mazer Foundation's focus areas in our free grants database
Related Funders
Similar funders by location and focus area
Laborers Intl Union of 472 Hcl
NEWARK, NJ
Assets
$61.5M
Grants
1
Total Given
$179K
The Community Chest of Englewood
ENGLEWOOD, NJ
Assets
$491K
Grants
5
Total Given
$38K
Margaret a Darrin Charitable Trust
FLORHAM PARK, NJ
Assets
$111.3M
Grants
61
Total Given
$6.9M
Anplr Religious Education Inc
PASSAIC, NJ
Assets
$19K
Grants
0
Total Given
—
The William & Phyllis Mack Family
FORT LEE, NJ
Assets
$5.9M
Grants
53
Total Given
$3.2M
New Digital Trade Coalition Ndtc
NORTH BERGEN, NJ
Assets
$300
Grants
0
Total Given
—
Data last updated June 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.
What could you do with Helen & William Mazer Foundation on Grantable?
- Assess strategic fit with your organization
- Draft a tailored letter of inquiry
- Find open RFPs from this funder
- Monitor for new funding opportunities
Go from researching Helen & William Mazer Foundation to a real strategy.