The Jacob & Ruth Mazer Foundation | Foundation Profile

GrantBay analyzes IRS Form 990-PF data to help grant seekers find fit funders like The Jacob & Ruth Mazer Foundation. Data shown is extracted from Form 990-PF filings.

EIN: 13-6115875

Foundation Overview

Based in Denver, CO, The Jacob & Ruth Mazer Foundation has awarded 158 grants totaling $348,351 to organizations in New York, Connecticut and 10 other states across the US. Individual grants range from $100 to $10,000, with a median award of $1,000.

Latest Tax Year
2023
Total Giving (all years)
$348,351
Total Assets
$536,340
Median Grant (all grants)
$1,000

Latest Form 990-PF Snapshot

Total Grants
36
Median Grant
$2,500
% Median Grant Growth
+11% (vs previous year)
Data extracted from IRS Form 990-PF filings. Last filing year: February 2026

Foundation Intelligence

Advanced analytics and strategic insights to help nonprofit organizations assess grant opportunities and optimize their application strategies

New Applicant Friendliness
Relationship-Focused: 22%

8 of 36 recipients (22%) were new grantees. Foundation strongly favors organizations with proven track records. New partnerships develop slowly over time.

Geographic Focus
New York

42% of grants are awarded in New York, with additional funding distributed across 11 other locations. The foundation balances regional focus with broader geographic diversity. Within New York, funding concentrates in New York (76%), Bronx (12%), Katanah (9%).

Funding Trajectory
-5%

Stable funding levels with 5% change over 7 years indicate consistent grant-making capacity and predictable philanthropic resources. This stability suggests reliable ongoing funding opportunities.

Program Areas
General Purposes

Highly focused on general purposes with 100% of funding dedicated to this sector. This specialization indicates deep expertise and committed investment in the field.

Where is The Money Going?

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Grants & Funding

Analyzing past grantees provides valuable insights into The Jacob & Ruth Mazer Foundation's funding preferences, organizational priorities, and grant making patterns. This historical data helps potential applicants understand the foundation's strategic focus and identify successful funding approaches.

Name Amount Location Purpose Year
Macular Degeneration Res $500 Northampton, MA, US General Grant 2023
Wnet $1,000 New York, NY, US General Grant 2023
Planned Parenthood $5,000 New York, NY, US General Grant 2023
Civic Canopy $5,000 Denver, CO, US General Grant 2023
Osborne Association $2,700 Bronx, NY, US General Grant 2023
Yale Alumni $2,500 New York, NY, US General Grant 2023
Jewish Experience $2,500 Denver, CO, US General Grant 2023
Aclu Foundation $5,000 New York, NY, US General Grant 2023
Greenwich Hospital $1,000 Greenwich, CT, US General Grant 2023
Macular Degeneration Res $500 Northampton, MA, US General Grant 2023
Wnet $1,000 New York, NY, US General Grant 2023
Planned Parenthood $5,000 New York, NY, US General Grant 2023
Civic Canopy $5,000 Denver, CO, US General Grant 2023
Osborne Association $2,700 Bronx, NY, US General Grant 2023
Yale Alumni $2,500 New York, NY, US General Grant 2023
Jewish Experience $2,500 Denver, CO, US General Grant 2023
Aclu Foundation $5,000 New York, NY, US General Grant 2023
Greenwich Hospital $1,000 Greenwich, CT, US General Grant 2023
Macular Degeneration Res $500 Northampton, MA, US General Grant 2023
Wnet $1,000 New York, NY, US General Grant 2023
Planned Parenthood $5,000 New York, NY, US General Grant 2023
Civic Canopy $5,000 Denver, CO, US General Grant 2023
Osborne Association $2,700 Bronx, NY, US General Grant 2023
Yale Alumni $2,500 New York, NY, US General Grant 2023
Jewish Experience $2,500 Denver, CO, US General Grant 2023
Aclu Foundation $5,000 New York, NY, US General Grant 2023
Greenwich Hospital $1,000 Greenwich, CT, US General Grant 2023
Macular Degeneration Res $500 Northampton, MA, US General Grant 2023
Wnet $1,000 New York, NY, US General Grant 2023
Planned Parenthood $5,000 New York, NY, US General Grant 2023
Civic Canopy $5,000 Denver, CO, US General Grant 2023
Osborne Association $2,700 Bronx, NY, US General Grant 2023
Yale Alumni $2,500 New York, NY, US General Grant 2023
Jewish Experience $2,500 Denver, CO, US General Grant 2023
Aclu Foundation $5,000 New York, NY, US General Grant 2023
Greenwich Hospital $1,000 Greenwich, CT, US General Grant 2023
Planned Parenthood $8,500 New York, NY, US General Grant 2022
American Civil Liberties Union Of C $10,000 Hartford, CT, US General Grant 2022
Caramoon Center For Music Art $500 Katanah, NY, US General Grant 2022
New York Public Radio $500 New York, NY, US General Grant 2022
Wnet $1,000 New York, NY, US General Grant 2022
Civic Canopy $2,500 Denver, CO, US General Grant 2022
Osborne Association $2,000 Bronx, NY, US General Grant 2022
Yale Alumni $4,500 New York, NY, US General Grant 2022
Jewish Colorado $9,500 Denver, CO, US General Grant 2022
Greenwich Police $250 Greenwich, CT, US General Grant 2022
Planned Parenthood $8,500 New York, NY, US General Grant 2022
American Civil Liberties Union Of C $10,000 Hartford, CT, US General Grant 2022
Caramoon Center For Music Art $500 Katanah, NY, US General Grant 2022
New York Public Radio $500 New York, NY, US General Grant 2022
Wnet $1,000 New York, NY, US General Grant 2022
Civic Canopy $2,500 Denver, CO, US General Grant 2022
Osborne Association $2,000 Bronx, NY, US General Grant 2022
Yale Alumni $4,500 New York, NY, US General Grant 2022
Jewish Colorado $9,500 Denver, CO, US General Grant 2022
Greenwich Police $250 Greenwich, CT, US General Grant 2022
Planned Parenthood $8,500 New York, NY, US General Grant 2022
American Civil Liberties Union Of C $10,000 Hartford, CT, US General Grant 2022
Caramoon Center For Music Art $500 Katanah, NY, US General Grant 2022
New York Public Radio $500 New York, NY, US General Grant 2022
Wnet $1,000 New York, NY, US General Grant 2022
Civic Canopy $2,500 Denver, CO, US General Grant 2022
Osborne Association $2,000 Bronx, NY, US General Grant 2022
Yale Alumni $4,500 New York, NY, US General Grant 2022
Jewish Colorado $9,500 Denver, CO, US General Grant 2022
Greenwich Police $250 Greenwich, CT, US General Grant 2022
Greenwich United Way $3,500 Greenwich, CT, US General Grant 2021
Caramoon Center For Music Art $500 Katanah, NY, US General Grant 2021
Southern Poverty Law Center $500 Montgomery, AL, US General Grant 2021
Jfs Of Greenwich $540 Greenwich, CT, US General Grant 2021
Round Hill Volunteer Fire Dept $350 Round Hill, VA, US General Grant 2021
Macular Degeneration Res $500 Northampton, MA, US General Grant 2021
Wnet $1,000 New York, NY, US General Grant 2021
Ffrf $500 Madison, WI, US General Grant 2021
Round Hill Association $300 Greenwich, CT, US General Grant 2021
Greenwich Hospital Foundation $1,000 Cos Cob, CT, US General Grant 2021
New Pathways Youth $8,000 Phoenix, AZ, US General Grant 2021
Greenwich Emergency Medical Service $750 Riverside, CT, US General Grant 2021
Greenwich United Way $3,500 Greenwich, CT, US General Grant 2020
Caramoon Center For Music Art $500 Katanah, NY, US General Grant 2020
Southern Poverty Law Center $500 Montgomery, AL, US General Grant 2020
Gems Inc $750 New York, NY, US General Grant 2020
New York Public Radio $500 New York, NY, US General Grant 2020
Round Hill Volunteer Fire Dept $300 Round Hill, VA, US General Grant 2020
Macular Degeneration Res $500 Northampton, MA, US General Grant 2020
Wnet $1,000 New York, NY, US General Grant 2020
Society Of St Vincent De Paul $250 Maryland Heights, MO, US General Grant 2020
Ffrf $500 Madison, WI, US General Grant 2020
Round Hill Association $250 Greenwich, CT, US General Grant 2020
Planned Parenthood $3,000 New York, NY, US General Grant 2020
Greenwich Hospital Foundation $1,000 Cos Cob, CT, US General Grant 2020
Civic Canopy $2,500 Denver, CO, US General Grant 2020
Silver Shield Association Greenwich $250 Greenwich, CT, US General Grant 2020
Hospice Of The Valley $2,000 Phoenix, AZ, US General Grant 2020
Yale Alumni $1,000 New York, NY, US General Grant 2020
New Pathways Youth $4,500 Phoenix, AZ, US General Grant 2020
Yarmouth Cares About Neighbors $500 Yarmouth, ME, US General Grant 2020
National Resources Council Of Maine $500 Augusta, ME, US General Grant 2020
Royal River Conservation Trust $500 Yarmouth, ME, US General Grant 2020
Jewish Colorado $9,000 Denver, CO, US General Grant 2020
Maine Immigration Refugee Services $500 Lewiston, ME, US General Grant 2020
Aclu Foundation $5,000 New York, NY, US General Grant 2020
Greenwich United Way $5,000 Greenwich, CT, US General Grant 2018
Jbi International $500 New York, NY, US General Grant 2018
Caramoon Center For Music Art $500 Katanah, NY, US General Grant 2018
Southern Poverty Law Center $500 Montgomery, AL, US General Grant 2018
Jfs Of Greenwich $540 Greenwich, CT, US General Grant 2018
Gems Inc $750 New York, NY, US General Grant 2018
New York Public Radio $500 New York, NY, US General Grant 2018
Round Hill Volunteer Fire Dept $250 Round Hill, VA, US General Grant 2018
Macular Degeneration Res $750 Northampton, MA, US General Grant 2018
Wnet $1,500 New York, NY, US General Grant 2018
Society Of St Vincent De Paul $150 Maryland Heights, MO, US General Grant 2018
Dsaff $1,000 Denver, CO, US General Grant 2018
Planned Parenthood $2,500 New York, NY, US General Grant 2018
Greenwich Hospital Foundation $1,000 Cos Cob, CT, US General Grant 2018
Civic Canopy $2,500 Denver, CO, US General Grant 2018
Aclu Of Colorado $5,000 Denver, CO, US General Grant 2018
Silver Shield Association Greenwich $250 Greenwich, CT, US General Grant 2018
Afya Foundation $300 Yonkers, NY, US General Grant 2018
Hospice Of The Valley $2,500 Phoenix, AZ, US General Grant 2018
Human Rights First $250 New York, NY, US General Grant 2018
Osborne Association $500 Bronx, NY, US General Grant 2018
Denver South High School $200 Denver, CO, US General Grant 2018
Greenwich United Way $5,000 Greenwich, CT, US General Grant 2017
Jbi International $1,000 New York, NY, US General Grant 2017
Patron Network $1,021 New York, NY, US General Grant 2017
Southern Poverty Law Center $1,000 Montgomery, AL, US General Grant 2017
Jfs Of Greenwich $540 Greenwich, CT, US General Grant 2017
Asu Foundation Endowment $350 Tempe, AZ, US General Grant 2017
Gems Inc $1,000 New York, NY, US General Grant 2017
Macular Degeneration Res $500 Northampton, MA, US General Grant 2017
Department Of Law $100 New York, NY, US General Grant 2017
Ffrf $1,000 Madison, WI, US General Grant 2017
Round Hill Association $200 Greenwich, CT, US General Grant 2017
Dsaff $1,000 Denver, CO, US General Grant 2017
Planned Parenthood $2,500 New York, NY, US General Grant 2017
Greenwich Hospital Foundation $1,000 Cos Cob, CT, US General Grant 2017
Civic Canopy $2,000 Denver, CO, US General Grant 2017
Aclu Of Colorado $2,000 Denver, CO, US General Grant 2017
Planned Parenthood $2,000 New York, NY, US General Grant 2016
Facing History And Ourselves $3,500 Brookline, MA, US General Grant 2016
Greenwich United Way $5,000 Greenwich, CT, US General Grant 2016
Jbi International $1,000 New York, NY, US General Grant 2016
American Civil Liberties Union Of C $5,000 Hartford, CT, US General Grant 2016
Southern Poverty Law Center $500 Montgomery, AL, US General Grant 2016
Jfs Of Greenwich $360 Greenwich, CT, US General Grant 2016
Gems Inc $500 New York, NY, US General Grant 2016
Round Hill Volunteer Fire Dept $500 Round Hill, VA, US General Grant 2016
Macular Degeneration Res $250 Northampton, MA, US General Grant 2016
Fairness West Virginia Institute $1,000 Charleston, WV, US General Grant 2016
Honor Health Foundation $2,000 Scottsdale, AZ, US General Grant 2016
Department Of Law $100 New York, NY, US General Grant 2016
Westport Writers Workshop $200 Wesport, CT, US General Grant 2016
The Julliard School $1,000 New York, NY, US General Grant 2016
Ffrf $500 Madison, WI, US General Grant 2016
Abbott House $500 Irvington, NY, US General Grant 2016
Rubin Scholarship Program $2,500 Dunwoody, GA, US General Grant 2016

Foundations Similar to The Jacob & Ruth Mazer Foundation

Discover 5 foundations with comparable assets ($524,323-$536,713), similar grant patterns, and geographic focus in CO that may also align with your organization's funding needs and grant seeking strategy.

Foundation Name Total Assets Typical Grant Size Service Area Similarity Match

EIN: 84-0991501 | 103 grants awarded
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$1,000
median grant
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Same state
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Excellent match

EIN: 84-2252316 | 35 grants awarded
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$1,000
median grant
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EIN: 87-3746999 | 38 grants awarded
$527,447
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$500
median grant
Englewood, CO
Same state
99%
Excellent match

EIN: 20-5662470 | 360 grants awarded
$525,358
(≈ Similar)
$1,059.5
median grant
Denver, CO
Same state
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Excellent match

EIN: 81-4759914 | 84 grants awarded
$524,323
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median grant
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Contact Information

Official contact details for The Jacob & Ruth Mazer Foundation as registered with the IRS. These details are essential for grant applications, correspondence, and due diligence processes.

EIN 13-6115875
Website N/A
Address 375 DETROIT ST Denver, CO 80206-4310

Key People (2)

Board members, trustees, and key staff who oversee The Jacob & Ruth Mazer Foundation's grant making decisions and strategic direction. Understanding leadership composition can provide insights into foundation priorities and potential networking opportunities.

President Michael Mazer
Treasurer Harriet Mazer

Forms 990-PF

IRS Form 990-PF filings provide comprehensive financial information, grant details, and operational data. These documents are essential resources for understanding foundation capacity, giving patterns, and strategic priorities.

Form 990-PF Research Tips
  • Review Part XV for detailed grant recipient information and funding purposes
  • Check Part I for total assets, annual giving amounts, and payout requirements
  • Examine Part VIII for key personnel compensation and board structure
  • Look for trends across multiple years to understand giving patterns

About This Foundation Profile

This comprehensive foundation profile for The Jacob & Ruth Mazer Foundation is powered by Grant Bay's advanced foundation research platform. Our system analyzes IRS Form 990-PF filings, grant histories, and philanthropic patterns to provide nonprofit organizations with actionable intelligence for grant seeking success.

Data Sources & Accuracy

All information is derived from official IRS filings and public records. Grant Bay processes thousands of Form 990-PF documents to extract grant details, financial data, and organizational information. Data accuracy depends on foundation reporting quality and IRS filing completeness.

Research Applications

Use this profile for prospect research, grant strategy development, application preparation, and relationship building. Combine this data with additional research on foundation priorities, application processes, and board member backgrounds for comprehensive grant seeking strategies.

Data Currency: Last updated February 2026 based on IRS Form 990-PF filings. Foundation information reflects most recent available tax year data.