Jonathan & Marjorie Slass Foundation

Private foundation · Grantmaker Warren, NJ EIN: 90-0587767

Jonathan & Marjorie Slass Foundation is a private foundation, based in Warren, NJ. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $363 in total assets.

Key facts about Jonathan & Marjorie Slass Foundation

EIN
90-0587767
Latest 990 filing
Form 990-PF, 2025
Total assets
$363

Data from IRS Form 990-PF, 2025; updated September 2026.

Financial Overview

From 2025 IRS Form 990-PF · View filing

Total Assets

$363

+0.0% YoY

Revenue

—

Expenses

—

-100.0% YoY

Under IRS private-foundation payout rules, Jonathan & Marjorie Slass Foundation reported a distributable amount of $18 for 2025 — the minimum it must pay out in qualifying distributions.

How Jonathan & Marjorie Slass Foundation gives

  • Giving fell 100% from 2020 to 2023. Method
  • In 2024 it paid out 172% of its IRS minimum distribution (the 5% rule). Method

From the foundation's IRS Form 990-PF filings. Methodology.

Your AI grants department

Ready to take the next step with Jonathan & Marjorie Slass Foundation?

Fully replaces Grant database subscriptions Instrumentl · Foundation Directory · GrantStation & similar

Geographic Focus

Where this funder awards grants

Grant Distribution by State

10states
+2 more states

Cities

BridgewaterNashvilleNew YorkTeaneckMatawanBethesdaCharlestonDallasEast WindsorIndianapolisMonroviaRockvilleRye BrookSomersetSomervilleTroyWarrenWashington

Giving Over Time

Total grant dollars and number of grants per year

$0$20K$40K$60K$80K17 grants2019 9 grants2020 1 grant2021 0 grants2022 1 grant2023 0 grants2024 0 grants2025

From 2019 to 2023, annual grant giving ranged from $100 (2023) to $76K (2019). In 2023 it made 1 grant totaling $100.

Grant Insights

How this funder distributes its grants

Grant Size Distribution

2 grants across all recorded years

2<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 2 grants of 2 (100%).

Giving History

Grant recipients and amounts by year

No grants recorded for 2025.

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$25K$50K$75K$100K2019 2020 2021 2022 2023 2024 2025
Metric202520242023
Total Assets$363$363$394
Revenue——$3
Expenses—$31$161
Qualifying Distributions—$31$160
Net Investment Income——$2
Distributable Amount$18$18$23

Data update history

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2024 (received by the IRS November 14, 2025)
  2. Updated Form 990-PF for fiscal year 2025 (received by the IRS May 1, 2026)
  3. Added Form 990-PF for fiscal year 2019 (received by the IRS April 16, 2020)
  4. Updated Form 990-PF for fiscal year 2020 (received by the IRS May 17, 2021)
  5. Updated Form 990-PF for fiscal year 2021 (received by the IRS March 8, 2022)
  6. Updated Form 990-PF for fiscal year 2022 (received by the IRS November 3, 2023)
  7. Updated Form 990-PF for fiscal year 2023 (received by the IRS May 23, 2024)

Leadership & Key People

Officers and directors from IRS filings

Jonathan & Marjorie Slass Foundation's 2025 filing lists 2 officers; none of the 2 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Jonathan Slass

    Trustee

    On filings since 2019

    0.5 hrs/week

    No compensation reported

  • Marjorie Slass

    Trustee

    On filings since 2019

    0.5 hrs/week

    No compensation reported

Data from IRS Form 990 filings, 2019–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about Jonathan & Marjorie Slass Foundation

How large is Jonathan & Marjorie Slass Foundation?

Jonathan & Marjorie Slass Foundation reported $363 in total assets on its 2025 IRS Form 990-PF.

Where does Jonathan & Marjorie Slass Foundation operate?

Jonathan & Marjorie Slass Foundation has awarded grants in California, District of Columbia, Indiana, Maryland, Michigan, New Jersey, New York, South Carolina, Tennessee, Texas.

How much is Jonathan & Marjorie Slass Foundation required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2025, Jonathan & Marjorie Slass Foundation reported a distributable amount of $18 on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.

What is Jonathan & Marjorie Slass Foundation's EIN?

Jonathan & Marjorie Slass Foundation's EIN (Employer Identification Number) is 90-0587767. IRS Form 990 filing data is available on this page for 2019–2025.

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

Your AI grants department

Here's the math on researching Jonathan & Marjorie Slass Foundation by hand.

Explore Open Grants

Browse active grant opportunities in Jonathan & Marjorie Slass Foundation's focus areas in our free grants database

Similar Funders

Funders that support many of the same organizations

Mutual of America Foundation

New York, NY

Philanthropy, Voluntarism & Grantmaking

Assets

$136K

Grants

539

Total Given

$839K

Granit Foundation

Brooklyn, NY

Assets

$521K

Grants

70

Total Given

$244K

Jewish Federation of Metropolitan Chicago

Chicago, IL

The Jewish Federation of Metropolitan funds human services, education, community programs, Jewish life, and crisis relief in the Chicago area, as well as support for Israel and Jewish communities worldwide. Its 2025 grants ranged from about $5,000 to $27.4 million, with a median of about $20,000. Unsolicited requests are not addressed for the Federation overall; its separate Jewish Women’s Foundation accepts letters of intent, with proposals by invitation only.

Philanthropy, Voluntarism & Grantmaking

Assets

$1.1B

Grants

896

Total Given

$166.6M

Cross River Community Foundation

Fort Lee, NJ

The foundation supports nonprofits in education, health and human services, economic development, community enrichment, and technology, with 2024 grants typically around $5,000 (the median), though awards varied widely. Most grant dollars went to organizations in New York and New Jersey. It gives only to preselected organizations and does not accept unsolicited requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$721K

Grants

246

Total Given

$6.1M

Irving and Bernice Singer Family Foundation

Manchester, NH

In 2024, the New Hampshire foundation gave $45,108 in two grants, both to Temple Israel in Manchester, and reported that it had distributed its remaining assets and would terminate. Its final-year grants averaged $22,554; it supported organizations in New Hampshire and accepted only requests from preselected charities, not unsolicited applications.

Assets

—

Grants

2

Total Given

$45K

The Arthur & Joyce Fein Family Foundation

Suffern, NY

Human Services

Assets

$414K

Grants

34

Total Given

$39K

Spacelady Foundation

Rockville, MD

Assets

$990K

Grants

51

Total Given

$32K

The Robert Wood Johnson Foundation

Princeton, NJ

The Robert Wood Johnson Foundation funds work to improve health and health equity in the United States, including health policy, community health, prevention, and social justice. In 2024, its grants ranged from $125 to $12.15 million, with a median of $40,000, and went to recipients across multiple states. The profile does not state whether it accepts unsolicited requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$13.4B

Grants

3,093

Total Given

$622.6M

Community Foundation of New Jersey

Morristown, NJ

The Community Foundation of New Jersey supports nonprofits and projects across arts, education, environment, health and human services, and social welfare. Its 2024 itemized grants had a median of about $19,800, though awards varied widely; funding went to organizations in multiple states, with 32% of itemized grant dollars going to New Jersey. It accepts applications for specific opportunities, and its FAQ encourages eligible New Jersey 501(c)(3) nonprofits to apply; requirements vary by opportunity.

Assets

$1.0B

Grants

1,321

Total Given

$93.8M

Crane Fund for Widows and Children

Englewood Cliffs, NJ

The Crane Fund for Widows and Children supports local charities, agencies, and schools addressing needs such as food insecurity, housing, education, health, environmental protection, and animal welfare in communities where Crane Company operates or its associates have connections. In 2024, grants ranged from $2,000 to $45,000, with a median of $4,500; it funds organizations in multiple states. The fund contributes only to preselected organizations and does not accept unsolicited requests.

Assets

—

Grants

985

Total Given

$4.5M

Community Food Bank Of New Jersey Inc

Hillside, NJ

The Community Food Bank of New Jersey funds community organizations addressing hunger and food insecurity, including food distribution, nutrition, and related support programs. Its 2025 grants ranged from $5,660 to $399,494, with a median of $20,000; nearly all funding went to organizations in New Jersey. The profile does not state whether it accepts unsolicited requests.

Assets

$125.2M

Grants

705

Total Given

$151.0M

The Hyde and Watson Foundation

Warren Township, NJ

The Hyde and Watson Foundation funds one-time capital needs—such as construction, renovations, equipment, and furnishings—for eligible nonprofits working in human services, education, health, arts and culture, and the environment. Most grants are $5,000–$20,000, and it primarily serves New York City and Essex, Morris, and Union counties in New Jersey; the profile does not state whether unsolicited requests are accepted.

Assets

$88.2M

Grants

611

Total Given

$6.1M

More Funders in New Jersey

Jonathan & Marjorie Slass Foundation down — hundreds of funders to go?

Want AI to do this for you?