The Jacob & Ruth Mazer Foundation

DENVER, CO EIN: 13-6115875

The Jacob & Ruth Mazer Foundation is a private foundation focused on Community and economic development, based in DENVER, CO. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $337K in total assets. In 2024, it awarded 11 grants totaling $37K. Net investment income was $18K.

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$337K

-5.4% YoY

Annual Giving

$37K

+46.0% YoY

Grant Count

11

+22.2% YoY

Avg Grant Size

$3K

+19.5% YoY

Under IRS private-foundation payout rules, The Jacob & Ruth Mazer Foundation reported a distributable amount of $29K for 2024 — the minimum it must pay out in qualifying distributions.

About The Jacob & Ruth Mazer Foundation

Based on IRS filings

The Jacob & Ruth Mazer Foundation is a private foundation focused on Community and economic development, based in DENVER, CO. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $337K in total assets. In 2024, it awarded 11 grants totaling $37K. Net investment income was $18K.

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

10states
+2 more states

Cities

AugustaBronxCos CobDenverGreenwichHartfordKatanahLewistonMadisonMaryland HeightsMontgomeryNew YorkNorthamptonPhoenixPort ChesterRiversideRound HillYarmouth

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$13K$27K$40K$54K20202021202220232024
Metric202420232022
Total Assets$337,040$356,361$369,159
Revenue$23,732$19,929$35,251
Expenses$43,053$32,727$45,578
Qualifying Distributions$36,800$25,200$39,250
Net Investment Income$17,670$13,749$30,337
Distributable Amount$29,277$25,344$24,995

Giving Over Time

Total grant dollars and number of grants per year

$0$10K$20K$29K$39K24 grants202012 grants202110 grants20229 grants202311 grants2024

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

JEWISH EXPERIENCE$9KJEWISH COLORADO$6KPLANNED PARENTHOOD$5KACLU FOUNDATION$5KCIVIC CANOPY$4KOSBORNE ASSOCIATION$3KYALE ALUMNI$3KGREENWICH HOSPITAL$1KDENVER MUSEUM OF NATURE …$1KMACULAR DEGENERATION RES$500

Grant Size Distribution

66 grants across all recorded years

66<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

Giving History

Grant recipients and amounts by year

Among its reported 2024 grants, the largest include Jewish Experience ($9,000), Jewish Colorado ($5,500), Planned Parenthood ($5,000).

RecipientPurposeAmount
PLANNED PARENTHOOD NEW YORK, NYGENERAL GRANT$5,000
MACULAR DEGENERATION RES NORTHAMPTON, MAGENERAL GRANT$500
CIVIC CANOPY DENVER, COGENERAL GRANT$4,000
OSBORNE ASSOCIATION BRONX, NYGENERAL GRANT$2,800
YALE ALUMNI NEW YORK, NYGENERAL GRANT$2,500
JEWISH EXPERIENCE DENVER, COGENERAL GRANT$9,000
JEWISH COLORADO DENVER, COGENERAL GRANT$5,500
ACLU FOUNDATION NEW YORK, NYGENERAL GRANT$5,000
GREENWICH HOSPITAL GREENWICH, CTGENERAL GRANT$1,000
DENVER MUSEUM OF NATURE SCIENCE DENVER, COGENERAL GRANT$1,000

Leadership & Key People

Officers and directors from IRS filings

Compensation Overview

From 2024 IRS filing

From 2024 filing

NameTitleHoursCompensation
MICHAEL MAZERPresident
HARRIET MAZERTreasurer

Subject Areas

Focus areas based on grantmaking activity

Frequently Asked Questions

What is The Jacob & Ruth Mazer Foundation?

The Jacob & Ruth Mazer Foundation is a private foundation focused on Community and economic development, based in DENVER, CO. It holds $337K in total assets as of 2024.

How large is The Jacob & Ruth Mazer Foundation?

As of 2024, The Jacob & Ruth Mazer Foundation holds $337K in total assets with $24K in annual revenue. It awarded 11 grants totaling $37K in 2024.

Where does The Jacob & Ruth Mazer Foundation operate?

The Jacob & Ruth Mazer Foundation has awarded grants in Alabama, Arizona, Colorado, Connecticut, Massachusetts, Maine, Missouri, New York, Virginia, Wisconsin.

What size grants does The Jacob & Ruth Mazer Foundation award?

In 2024, The Jacob & Ruth Mazer Foundation awarded 11 grants totaling $37K — an average of about $3K per grant, based on its IRS Form 990 filings.

How much is The Jacob & Ruth Mazer Foundation required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2024, The Jacob & Ruth Mazer Foundation reported a distributable amount of $29K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.

What is The Jacob & Ruth Mazer Foundation's EIN?

The Jacob & Ruth Mazer Foundation's EIN (Employer Identification Number) is 13-6115875. IRS Form 990 filing data is available on this page for 2020–2024.

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Data last updated April 2026. Sourced from IRS Form 990-PF filings.

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