AI Summary
The Helen & William Mazer Foundation is a 501(c)(3) grantmaking organization that focuses on relationship-based funding, providing a total of $975K in grants to 133 grantees in 2025. The foundation does not accept unsolicited proposals and only makes grants by invitation. Nonprofits interested in funding opportunities can explore warm-introduction pathways through Impala's Funder Prospecting.
Cause Areas
1
Foundations
Explore this org's ecosystem
See top causes for this funder's grantees, who else funds them, and their grants.
Explore this org's ecosystem
See top causes for this funder's grantees, who else funds them, and their grants.
Grantee
Total Funding
Funding Share
BRANDEIS UNIVERSITY
WALTHAM, MA
$302K
5%
CONSERVATION LAW FOUNDATION INC
BOSTON, MA
$283K
5%
ECOCITY BUILDERS
Oakland, CA
$280.5K
4%
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Total No. of Grants
119
Median 1st year grant
$2.1K
Median 2nd year grant
$4K
Top 3 Grants
Matched grants only
Grantee
Grant Size
Frequently Asked Questions
Can I submit an unsolicited grant proposal to HELEN & WILLIAM MAZER FOUNDATION?
No. HELEN & WILLIAM MAZER FOUNDATION does not accept unsolicited proposals. Funding is by invitation only.
Where does HELEN & WILLIAM MAZER FOUNDATION give?
HELEN & WILLIAM MAZER FOUNDATION primarily gives to organizations located in New York, Massachusetts, and New Jersey. These states represent the largest share of the foundation’s grantmaking by dollars awarded. Additional geographic details are available to registered users.
What size are HELEN & WILLIAM MAZER FOUNDATION’s grants?
The largest share of grants from HELEN & WILLIAM MAZER FOUNDATION fall in the below $5,000 range. The median first-year grant is about $2,100. More detailed grant size data is available to registered users.
How many grants does HELEN & WILLIAM MAZER FOUNDATION make each year?
In 2025, HELEN & WILLIAM MAZER FOUNDATION awarded about 120 grants, totaling nearly $975 thousand. More detailed grant metrics are available to registered users.
Who did HELEN & WILLIAM MAZER FOUNDATION fund recently?
In 2025, HELEN & WILLIAM MAZER FOUNDATION awarded grants to about 130 grantees. Recent grantees include BRANDEIS UNIVERSITY, CONSERVATION LAW FOUNDATION INC, and ECOCITY BUILDERS. More detailed information on all recent recipients is available to registered users.
How do we apply to HELEN & WILLIAM MAZER FOUNDATION?
HELEN & WILLIAM MAZER FOUNDATION does not accept unsolicited proposals. Funding is by invitation only.