Data / Foundation grants / Helen & William Mazer Foundation
Helen & William Mazer Foundation: 119 grants to organizations, $975,000 (tax year ended September 2025)
Helen & William Mazer Foundation, a private foundation in Berkeley Heights, NJ, paid 119 grants to organizations totaling $975,000 in its tax year ended September 2025, according to its Form 990-PF filed with the IRS on December 11, 2025. The largest was $55,000 to East Coast Greenway in Durham, NC for charitable purposes..
SpecStream is the live web data engine for teams and agents. It reads every private foundation's Form 990-PF as the IRS publishes it, and this page is that reading. Ask for the foundations that fund your cause in your state, with the amounts and purposes, and new grants arrive in your sheet, CRM, Slack or agent as the returns are filed.
- EIN
- 020511160
- Based in
- Berkeley Heights, NJ
- Assets
- $21,145,918
- Grants paid
- $975,000
- Tax year ended
- September 2025
Grants paid, tax year ended September 2025
From the Form 990-PF filed December 11, 2025, IRS object ID 202543459349100704. It reported $975,000 in grants paid; 119 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| East Coast Greenway | Durham, NC | Charitable purposes. | $55,000 | apps.irs.gov | |
| Brandeis University | Waltham, MA | Charitable purposes. | Education | $50,000 | apps.irs.gov |
| TPL-CT | New Haven, CT | Charitable purposes. | $50,000 | apps.irs.gov | |
| Conservation Law Foundation | Boston, MA | Charitable purposes. | Environment | $48,000 | apps.irs.gov |
| Ecocity Builders | Durham, NC | Charitable purposes. | $47,500 | apps.irs.gov | |
| Tpl-Ca | Los Angeles, CA | Charitable purposes. | $45,000 | apps.irs.gov | |
| Rockefeller University | New York, NY | Charitable purposes. | Education | $40,000 | apps.irs.gov |
| Spring Street Climate Fund | Brooklyn, NY | Charitable purposes. | Environment | $40,000 | apps.irs.gov |
| Livable Streets Transportation | Cambridge, MA | Charitable purposes. | $35,500 | apps.irs.gov | |
| Breakthrough T1D | New York, NY | Charitable purposes. | Diseases, disorders and medical disciplines | $30,000 | apps.irs.gov |
| Nature Conservancy | Arlington, VA | Charitable purposes. | $30,000 | apps.irs.gov | |
| Jespy House | South Orange, NJ | Charitable purposes. | Human services | $25,000 | apps.irs.gov |
| Ubuntu Pathways | New York, NY | Charitable purposes. | Education | $25,000 | apps.irs.gov |
| Bennington College | Bennington, VT | Charitable purposes. | Education | $20,000 | apps.irs.gov |
| NJ Conservation Fund | Far Hills, NJ | Charitable purposes. | $20,000 | apps.irs.gov | |
| Nhcat | New Haven, CT | Charitable purposes. | $20,000 | apps.irs.gov | |
| Open Space Institute | New York, NY | Charitable purposes. | Environment | $20,000 | apps.irs.gov |
| Massachusetts Bicycle Coalition | Boston, MA | Charitable purposes. | $17,500 | apps.irs.gov | |
| Innocence Project | New York, NY | Charitable purposes. | Human services | $15,000 | apps.irs.gov |
| Kiwimbi | New Vernon, NJ | Charitable purposes. | $15,000 | apps.irs.gov | |
| Norwottuck Network | Florence, MA | Charitable purposes. | $15,000 | apps.irs.gov | |
| Northeast Wilderness Trust | Montpelier, VT | Charitable purposes. | Environment | $12,500 | apps.irs.gov |
| Mali Health | Durham, NC | Charitable purposes. | $11,000 | apps.irs.gov | |
| Barred Rock Fund Inc | Jericho, VT | Charitable purposes. | $10,000 | apps.irs.gov | |
| Doctors Without Borders | New York, NY | Charitable purposes. | $10,000 | apps.irs.gov | |
| International Rescue Comm | New York, NY | Charitable purposes. | $10,000 | apps.irs.gov | |
| Tsne | Boston, MA | Charitable purposes. | $10,000 | apps.irs.gov | |
| Uja Federationmetrowest | Paramus, NJ | Charitable purposes. | $10,000 | apps.irs.gov | |
| Earthjustice | San Francisco, CA | Charitable purposes. | Environment | $9,000 | apps.irs.gov |
| Gswa | Morristown, NJ | Charitable purposes. | $9,000 | apps.irs.gov | |
| Planned Parenthood | New York, NY | Charitable purposes. | $8,000 | apps.irs.gov | |
| Palestinian Childrens Relief Fund | Mission Viejo, CA | Charitable purposes. | $6,000 | apps.irs.gov | |
| Amref | New York, NY | Charitable purposes. | $5,000 | apps.irs.gov | |
| Clark University | Worcester, MA | Charitable purposes. | Education | $5,000 | apps.irs.gov |
| Clifford Beers Clinic | New Haven, CT | Charitable purposes. | $5,000 | apps.irs.gov | |
| Emerge Connecticut Inc | New Haven, CT | Charitable purposes. | Crime and legal-related | $5,000 | apps.irs.gov |
| Gather New Haven | New Haven, CT | Charitable purposes. | Environment | $5,000 | apps.irs.gov |
| MSF | New York, NY | Charitable purposes. | $5,000 | apps.irs.gov | |
| New York Public Radio | New York, NY | Charitable purposes. | Arts, culture and humanities | $5,000 | apps.irs.gov |
| Nols | Lander, WY | Charitable purposes. | $5,000 | apps.irs.gov | |
| Ny Times Communities Fund | New York, NY | Charitable purposes. | $5,000 | apps.irs.gov | |
| Our Hearts Your Hands | Carmel, IN | Charitable purposes. | Education | $5,000 | apps.irs.gov |
| Social Impact Partners | Westport, CT | Charitable purposes. | Human services | $5,000 | apps.irs.gov |
| Solid Foundation | Paterson, NJ | Charitable purposes. | $5,000 | apps.irs.gov | |
| Thirteen- Wnet | New York, NY | Charitable purposes. | $5,000 | apps.irs.gov | |
| Urban Resources Initiative | New Haven, CT | Charitable purposes. | $5,000 | apps.irs.gov | |
| Anjec | Mendham, NJ | Charitable purposes. | $4,000 | apps.irs.gov | |
| Friends of the Belmar Harbor | Belmar, NJ | Charitable purposes. | $4,000 | apps.irs.gov | |
| Hackensack Riverkeeper | Hackensack, NJ | Charitable purposes. | Environment | $4,000 | apps.irs.gov |
| MSKCC | New York, NY | Charitable purposes. | $4,000 | apps.irs.gov | |
| NJ Bike and Walk Coalition | Montclair, NJ | Charitable purposes. | $4,000 | apps.irs.gov | |
| Prestige International | Monmouth Junction, NJ | Charitable purposes. | $4,000 | apps.irs.gov | |
| Huru International | New York, NY | Charitable purposes. | International, foreign affairs and national security | $3,200 | apps.irs.gov |
| Mfee | Montclair, NJ | Charitable purposes. | $3,000 | apps.irs.gov | |
| Northeast Earth Coalition | Montclair, NJ | Charitable purposes. | Human services | $3,000 | apps.irs.gov |
| Roundabout Theatre Company | New York, NY | Charitable purposes. | Arts, culture and humanities | $3,000 | apps.irs.gov |
| Union County College Foundation | Cranford, NJ | Charitable purposes. | Education | $3,000 | apps.irs.gov |
| Catawba Lands Conservancy | Charlotte, NC | Charitable purposes. | Environment | $2,500 | apps.irs.gov |
| Circus Smirkus | Greensboro, VT | Charitable purposes. | $2,500 | apps.irs.gov | |
| Climatehaven | New Haven, CT | Charitable purposes. | Science and technology | $2,500 | apps.irs.gov |
| Collab Incorporated | New Haven, CT | Charitable purposes. | Community improvement and capacity building | $2,500 | apps.irs.gov |
| Connecticut News Project | Hartford, CT | Charitable purposes. | Arts, culture and humanities | $2,500 | apps.irs.gov |
| Detention Watch Network | Washington, DC | Charitable purposes. | Human services | $2,500 | apps.irs.gov |
| Ethical Culture Fieldston | New York, NY | Charitable purposes. | $2,500 | apps.irs.gov | |
| Foundation Fighting Blindness | Colombia, MD | Charitable purposes. | $2,500 | apps.irs.gov | |
| Friends of Norwalk Public Library | Norwalk, CT | Charitable purposes. | $2,500 | apps.irs.gov | |
| Girls On the Run Greater Boston | Boston, MA | Charitable purposes. | Youth development | $2,500 | apps.irs.gov |
| Green Forests Work | Lexington, KY | Charitable purposes. | Environment | $2,500 | apps.irs.gov |
| Groton Hill Music Center | Groton, MA | Charitable purposes. | $2,500 | apps.irs.gov | |
| Humans Love Love Foundation | San Francisco, CA | Charitable purposes. | $2,500 | apps.irs.gov | |
| Internet Archive | San Francisco, CA | Charitable purposes. | Human services | $2,500 | apps.irs.gov |
| Make the Road States | Brentwood, NY | Charitable purposes. | $2,500 | apps.irs.gov | |
| NDN Collective | Rapid City, SD | Charitable purposes. | Community improvement and capacity building | $2,500 | apps.irs.gov |
| PRX Inc | Cambridge, MA | Charitable purposes. | $2,500 | apps.irs.gov | |
| Parking Reform Network | Portland, OR | Charitable purposes. | Environment | $2,500 | apps.irs.gov |
| Smart Growth America | Washington, DC | Charitable purposes. | Environment | $2,500 | apps.irs.gov |
| The Commonwealth CLB of Cal | San Francisco, CA | Charitable purposes. | $2,500 | apps.irs.gov | |
| Walk Boston | Boston, MA | Charitable purposes. | $2,500 | apps.irs.gov | |
| Feeding America | Washington, DC | Charitable purposes. | $2,000 | apps.irs.gov | |
| Montclair Film Festival | Montclair, NJ | Charitable purposes. | Arts, culture and humanities | $2,000 | apps.irs.gov |
| Njana | Trenton, NJ | Charitable purposes. | $2,000 | apps.irs.gov | |
| Sharron Miller Academy | Montclair, NJ | Charitable purposes. | $2,000 | apps.irs.gov | |
| Wnyc | Bridgeport, CT | Charitable purposes. | $2,000 | apps.irs.gov | |
| Montclair Helps | Montclair, NJ | Charitable purposes. | $1,800 | apps.irs.gov | |
| Persuasion Institute | Washington, DC | Charitable purposes. | Education | $1,500 | apps.irs.gov |
| Summit YMCA | Summit, NJ | Charitable purposes. | $1,500 | apps.irs.gov | |
| Americans for Oxford | New York, NY | Charitable purposes. | Education | $1,000 | apps.irs.gov |
| Arnold P Gold Foundation | Fort Lee, NJ | Charitable purposes. | $1,000 | apps.irs.gov | |
| Bikes Not Bombs | Jamaica Plain, MA | Charitable purposes. | $1,000 | apps.irs.gov | |
| Breast Cancer Emergency Aid Foundation Inc | Westport, CT | Charitable purposes. | Diseases, disorders and medical disciplines | $1,000 | apps.irs.gov |
| Cambridge Historical Society | Cambridge, MA | Charitable purposes. | Arts, culture and humanities | $1,000 | apps.irs.gov |
| Commentary Inc | New York, NY | Charitable purposes. | Religion-related | $1,000 | apps.irs.gov |
| Green Cambridge | Cambridge, MA | Charitable purposes. | Environment | $1,000 | apps.irs.gov |
| Institute of Contemporary Art | Boston, MA | Charitable purposes. | Arts, culture and humanities | $1,000 | apps.irs.gov |
| League of American Bicyclists | Washington, DC | Charitable purposes. | $1,000 | apps.irs.gov | |
| Montclair Public Library FDN | Montclair, NJ | Charitable purposes. | $1,000 | apps.irs.gov | |
| Online Journalism Project | New Haven, CT | Charitable purposes. | Health care | $1,000 | apps.irs.gov |
| Open To Debate Foundation | New York, NY | Charitable purposes. | Social science | $1,000 | apps.irs.gov |
| Pathways Inc | Corning, NY | Charitable purposes. | Human services | $1,000 | apps.irs.gov |
| Pflag | Washington, DC | Charitable purposes. | $1,000 | apps.irs.gov | |
| SF Bicycle Coalition Education Fund | San Francisco, CA | Charitable purposes. | $1,000 | apps.irs.gov | |
| St Jude Children's Research | Memphis, TN | Charitable purposes. | $1,000 | apps.irs.gov | |
| The Long Now Foundation | San Francisco, CA | Charitable purposes. | Education | $1,000 | apps.irs.gov |
| The Raptor Trust | Millington, NJ | Charitable purposes. | Animal-related | $1,000 | apps.irs.gov |
| Transportation Alternatives | New York, NY | Charitable purposes. | $1,000 | apps.irs.gov | |
| Trinitas Health Foundation | Elizabeth, NJ | Charitable purposes. | $1,000 | apps.irs.gov | |
| Trustees of Reservations | Boston, MA | Charitable purposes. | Environment | $1,000 | apps.irs.gov |
| WPKN | Bridgeport, CT | Charitable purposes. | Arts, culture and humanities | $1,000 | apps.irs.gov |
| Washington Area Bicycle Assoc | Washington, DC | Charitable purposes. | $1,000 | apps.irs.gov | |
| Wikipedia Foundation Inc | San Francisco, CA | Charitable purposes. | $1,000 | apps.irs.gov | |
| City Harvest | New York, NY | Charitable purposes. | Food, agriculture and nutrition | $800 | apps.irs.gov |
| Community Foodbank NJ | Hillside, NJ | Charitable purposes. | $800 | apps.irs.gov | |
| Central Park Conservancy | New York, NY | Charitable purposes. | Recreation and sports | $600 | apps.irs.gov |
| Covenant House | New York, NY | Charitable purposes. | Human services | $600 | apps.irs.gov |
| New York Public Library | New York, NY | Charitable purposes. | $600 | apps.irs.gov | |
| Our House FDN | Murray Hill, NJ | Charitable purposes. | $600 | apps.irs.gov | |
| Montclair Mutual Aid | Montclair, NJ | Charitable purposes. | Food, agriculture and nutrition | $500 | apps.irs.gov |
| The Access Fund | Boulder, CO | Charitable purposes. | $500 | apps.irs.gov | |
| Transgender Law Center | Oakland, CA | Charitable purposes. | Civil rights, social action and advocacy | $500 | apps.irs.gov |
Causes funded
From grants whose recipient has a cause.
| Cause | Granted |
|---|---|
| Education | $151,500 |
| Environment | $150,500 |
| Human services | $54,600 |
| Diseases, disorders and medical disciplines | $31,000 |
| Arts, culture and humanities | $15,500 |
| Crime and legal-related | $5,000 |
| Community improvement and capacity building | $5,000 |
| International, foreign affairs and national security | $3,200 |
States funded
| Recipient state | Granted |
|---|---|
| New York | $245,800 |
| Massachusetts | $196,000 |
| New Jersey | $128,200 |
| North Carolina | $116,000 |
| Connecticut | $110,000 |
| California | $71,000 |
| Vermont | $45,000 |
| Virginia | $30,000 |
Also on SpecStream
- Who funds education in New York
- Who funds environment in New York
- Who funds education in Massachusetts
- Who funds environment in Massachusetts
- Who funds diseases, disorders and medical disciplines in New York
- Who funds human services in New Jersey
Updated December 11, 2025. Read from IRS Form 990-PF e-file data. Public domain (U.S. government work). Grants are as each foundation reported them to the IRS on its Form 990-PF. Grants to individuals are left out. A grant has a cause only where the recipient's name and city match one organization in the IRS Business Master File, and the cause is that organization's NTEE major group. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.