The Stewart and Marlene Greenebaum
The Stewart and Marlene Greenebaum is a private foundation based in Baltimore, Maryland. Its 2024 grants supported charitable organizations, primarily in Maryland, with major gifts to congregations and medical organizations.
Key facts about The Stewart and Marlene Greenebaum
In short: The Stewart and Marlene Greenebaum gave $680K across 15 grants in 2025 (avg $45K), mostly in Maryland. 42% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- EIN
- 52-2089849
- Latest 990 filing
- Form 990-PF, 2025
- Annual giving (2025)
- $679,752
- Grants made (2025)
- 15
- Average grant
- $45,317
- Median grant
- $16,800
- New grantees (estimate)
- 42% first-time grantees (5 of 12, 2025)
- Total assets
- $5,655,762
- Primary geography
- Maryland (99% of itemized 2025 grant dollars)
- Accepts unsolicited proposals
- No
- How to apply
- The foundation does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations. Full details ↓
Data from IRS Form 990-PF, 2025; updated September 2026. New grantees are estimated by matching recipient names across years (methodology). Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Financial Overview
From 2025 IRS Form 990-PF · View filing
Total Assets
$5.7M
-2.8% YoY
Annual Giving
$680K
+4.3% YoY
Grant Count
15
-11.8% YoY
Avg Grant Size
$45K
+18.3% YoY
Under IRS private-foundation payout rules, The Stewart and Marlene Greenebaum reported a distributable amount of $711K for 2025 — the minimum it must pay out in qualifying distributions.
Is The Stewart and Marlene Greenebaum open to new grantees?
42%
first-time grantees, 2025
In 2025, 5 of 12 grantees (42%) were first-time recipients. First grants averaged $21K; repeat grants $82K. How we count
Medians: $6K first-time, $25K repeat.
- 50% of 2025 grantees were also funded in 2024. Method
- Giving fell 62% from 2022 to 2025. Method
- In 2025 it paid out 96% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Mission & Focus Areas
Greenebaum Enterprises describes philanthropy as integral to its work and says it supports education and medicine. The company’s account of its philanthropic commitments highlights cancer care and research, stroke research, and breast cancer treatment.
The 2024 grant list includes congregations, medical organizations, and other charitable organizations. Among the grantees described in their own statements, Project Pneuma says it works to support young men intellectually, physically, emotionally, and spiritually. The Baltimore Civic Fund says it connects government and philanthropy to improve residents’ quality of life and expand access to resources and opportunities. The University of Maryland Medical System Foundation says it raises charitable funds to safeguard the future of health care excellence for the University of Maryland Medical System.
Grantmaking
In 2024, the foundation reported 17 grants totaling $651,455. Grant amounts ranged from $2,500 to $400,000, with a median of $10,000. The largest grant was $400,000 to Beth Tfiloh Congregation for general funds. Other notable grants included $50,000 to Har Sinai Oheb Shalom Congregation for general funds, $50,000 to Highland Hospital Foundation for its Weight Loss Research Fund, and $25,000 to The Associated for general funds.
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Geographic Focus
Where this funder awards grants
In 2024, 91% of grant dollars went to recipients in Maryland, 8% to recipients in New York, and 1% to recipients in Pennsylvania.
Grant Distribution by State
Share of 2025 grant dollars across all 15 itemized grants.
States
Cities
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $651K (2024) to $2.1M (2023). In 2025 it made 15 grants totaling $680K.
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Beth Tfiloh Congregation ($400K). Together the top 10 received $672K.
Grant Size Distribution
67 grants across all recorded years
The most common grant size was under $50K: 54 grants of 67 (81%).
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Beth Tfiloh Congregation Baltimore, MD | General Funds | $400,000 |
| Education Enhancement Initiative Inc Stevenson, MD | General Funds | $50,000 |
| University of Maryland Medical System Foundation Baltimore, MD | University of Maryland marlene and stewart greenebaum cancer center md half marathon | $40,000 |
| Center for Hope Owings Mills, MD | General Funds | $39,652 |
| The Associated Baltimore, MD | General Funds | $36,000 |
| The Associated Baltimore, MD | General Funds | $36,000 |
| Har Sinai Oheb Shalom Congregation Baltimore, MD | General Funds | $25,000 |
| Lifebridge Health Corporate Development Owings Mills, MD | General Funds | $16,800 |
| Living Classrooms Foundation Baltimore, MD | General Funds | $10,000 |
| The Signal 13 Foundation Baltimore, MD | General Funds | $10,000 |
Financial History
Multi-year comparison from IRS filings
| Filing year | Assets | Revenue | Expenses | Grants |
|---|---|---|---|---|
| 2024 | $5,820,953 | $660,914 | $731,003 | $651,455 |
| 2023 | $5,891,042 | $1,295,968 | $2,154,365 | $2,098,452 |
| 2022 | $6,749,439 | -$4,439 | $1,852,779 | $1,798,750 |
| Metric | 2025 | 2024 | 2023 |
|---|---|---|---|
| Total Assets | $5,655,762 | $5,820,953 | $5,891,042 |
| Revenue | $575,940 | $660,914 | $1,295,968 |
| Expenses | $741,131 | $731,003 | $2,154,365 |
| Qualifying Distributions | $679,752 | $651,455 | $2,098,452 |
| Net Investment Income | $514,561 | $610,782 | $1,240,055 |
| Distributable Amount | $711,202 | $657,524 | $601,886 |
Data update history
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2025 (received by the IRS July 10, 2026)
- IRS filings on file for fiscal years 2020–2024
Leadership & Key People
Leadership team and compensation from IRS filings
The 2024 filing lists Michael I Greenebaum as president, secretary, and treasurer, and Amy R Burwen as vice president, assistant secretary, and assistant treasurer.
The Stewart and Marlene Greenebaum is led by Michael I. Greenebaum, President, Secr't & Treasurer on every filing since 2020; none of the 2 officers listed in 2025 report compensation.
Officers on the 2025 filing
Michael I. Greenebaum
President, Secr't & Treasurer
On filings since 2020
0.1 hrs/week
No compensation reported
Amy R. Burwen
V.p, Assistant Secr't & Assistant T
On filings since 2020
No compensation reported
Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Contact
Mailing address: 1829 Reisterstown Road 300, Baltimore, MD 21208
Phone: (410) 484-8400
Website: https://greenebaumenterprises.com
Frequently asked questions about The Stewart and Marlene Greenebaum
How much does The Stewart and Marlene Greenebaum give each year?
The Stewart and Marlene Greenebaum gave $680K across 15 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $651K across 17 grants.
What is The Stewart and Marlene Greenebaum's typical grant size?
The Stewart and Marlene Greenebaum's median grant in 2025 was $16,800, and its average grant was $45,317, across 15 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from The Stewart and Marlene Greenebaum that year got $21K on average.
Where does The Stewart and Marlene Greenebaum give grants?
The Stewart and Marlene Greenebaum gives mostly in Maryland: 99% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Baltimore, MD (10 grants), Owings Mills, MD (2 grants) and New York, NY (2 grants).
Does The Stewart and Marlene Greenebaum give general operating support?
Yes: 87% of The Stewart and Marlene Greenebaum's 2025 grants with a stated purpose (13 of 15) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are The Stewart and Marlene Greenebaum's largest grantees?
The Stewart and Marlene Greenebaum's largest 2025 grantees include Beth Tfiloh Congregation ($400,000), The Associated ($72,000 across 2 grants) and Education Enhancement Initiative Inc ($50,000), according to its 2025 IRS Form 990-PF. Together they received 77% of its itemized 2025 grant dollars.
How large is The Stewart and Marlene Greenebaum?
The Stewart and Marlene Greenebaum reported $5.7M in total assets on its 2025 IRS Form 990-PF. It paid out $680K in qualifying distributions that year, against a required minimum of $711K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
What does The Stewart and Marlene Greenebaum fund?
Greenebaum Enterprises describes philanthropy as integral to its work and says it supports education and medicine. The company’s account of its philanthropic commitments highlights cancer care and research, stroke research, and breast cancer treatment. See mission & focus areas ↑
How do I apply for a grant from The Stewart and Marlene Greenebaum?
The foundation does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is The Stewart and Marlene Greenebaum's EIN?
The Stewart and Marlene Greenebaum's EIN (Employer Identification Number) is 52-2089849. IRS Form 990 filing data is available on this page for 2020–2025.
Does The Stewart and Marlene Greenebaum accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated September 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
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