TSC Alliance Endowment Fund Inc
The TSC Alliance Endowment Fund is a separate fiduciary organizationspecifically chartered to receive gifts that will be invested togenerate an income stream that will help fulfill the mission of the tscalliance. The endowment fund will ensure that the TSC alliance has anongoing source of funding to better serve families touched by tuberoussclerosis complex (TSC) through research, family services, andeducation.
TSC Alliance Endowment Fund Inc at a glance
In short: TSC Alliance Endowment Fund Inc gave $246K across 1 grant in 2025 (avg $246K), mostly in Maryland. Source: 2025 IRS Form 990.
- Annual giving (2025)
- $246,000
- +2.9% vs 2024
- Grants made (2025)
- 1
- +0.0% vs 2024
- Average grant
- $246,000
- +2.9% vs 2024
- Median grant
- $246,000
- Total assets
- $8,273,608
- +11.5% vs 2024
- Primary geography
- Maryland (100% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated September 2026.
How to apply to TSC Alliance Endowment Fund Inc
- Next open deadline
- December 1, 2026 (Autism Science Foundation Pre- and Postdoctoral Training Awards and Medical Student Gap Year Research Training Awards)
Open Grants
7 open opportunities from TSC Alliance Endowment Fund Inc
American Skin Association Research Grants
TSC Alliance Endowment Fund Inc
Amount
$15,000
Deadline
Deadline not published
American Skin Association Research Scholar Award
TSC Alliance Endowment Fund Inc
Amount
$60,000
Deadline
Deadline not published
Autism Science Foundation Pre- and Postdoctoral Training Awards and Medical Student Gap Year Research Training Awards
TSC Alliance Endowment Fund Inc
Amount
Varies
Deadline
Expected ~December
Based on past cycles
Who TSC Alliance Endowment Fund Inc funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was National Tuberous Sclerosis Association ($246K).
Grant Size Distribution
5 grants across all recorded years
The most common grant size was in the $100–250K range: 3 grants of 5 (60%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2025 grant dollars on its one itemized grant.
States
Cities
How TSC Alliance Endowment Fund Inc gives
- Giving fell 20% from 2022 to 2025. Method
From the foundation's IRS Form 990 filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $226K (2021) to $573K (2023). In 2025 it made 1 grant totaling $246K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| National Tuberous Sclerosis Association Silver Spring, MD | Program Support | $246,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $8,273,608 | $830,459 | $327,936 | $246,000 | 1 | $424,519 |
| 2024 | $7,419,820 | $709,763 | $305,771 | $239,000 | 1 | $175,570 |
| 2023 | $6,262,570 | $577,597 | $649,531 | $572,625 | 1 | $466,336 |
| 2022 | $5,620,224 | $206,655 | $384,476 | $308,000 | 1 | $162,075 |
| 2021 | $6,835,859 | $347,803 | $333,813 | $226,000 | 1 | $237,906 |
| 2020 | $5,960,667 | $65,943 | $463,721 | $330,875 | 1 | $31,967 |
About TSC Alliance Endowment Fund Inc
Based on IRS filings
TSC Alliance Endowment Fund Inc is a public charity, based in Silver Spring, MD. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $8.3M in total assets. In 2025, it awarded 1 grant totaling $246K. Net investment income was $425K.
Focus Areas
Leadership & Key People
Officers and directors from IRS filings
TSC Alliance Endowment Fund Inc is led by Kari Luther Rosbeck, President & CEO on every filing since 2020; none of the 13 officers listed in 2025 report compensation.
Officers on the 2025 filing
Kari Luther Rosbeck
President & CEO
On filings since 2020
1 hr/week
$4K (2020) → $0 (2025)
Rita Didomenico
Chair
Board Member → Director, 2024
Director → Chair, 2025
On filings since 2021
2 hrs/week
No compensation reported
Paul Waxlax
Director
Board Member → Director, 2024
On filings since 2020
1 hr/week
No compensation reported
Jim Maginn
Director
Board Member → Director, 2024
On filings since 2023
1 hr/week
No compensation reported
Tim Dills
Director
Board Member → Director, 2024
On filings since 2023
1 hr/week
No compensation reported
David Johnston
Director
On filings since 2024
1 hr/week
No compensation reported
Mark Schaengold
Director
On filings since 2024
1 hr/week
No compensation reported
Megan Self
Director
On filings since 2024
1 hr/week
No compensation reported
Darren Miles
Director
New on the 2025 filing
1 hr/week
No compensation reported
Larry O'Friel
Director
New on the 2025 filing
1 hr/week
No compensation reported
Robert Groves III
Secretary
Board Member → Secretary, 2024
On filings since 2020
2 hrs/week
No compensation reported
Brittany Smith
Treasurer
Board Member → Treasurer, 2024
On filings since 2021
2 hrs/week
No compensation reported
Jamie Saylor
Chief Financial Officer
New on the 2025 filing
3 hrs/week
No compensation reported
Former officers (8)
- Former: Marion S. Adams III (2020–2024) — Chair
- Former: Cynthia Arcuri (2022–2024) — Chief Financial Officer
- Former: Hal Tearse (2020–2023) — Treasurer
- Former: Michael Augustine (2020–2023) — Secretary
- Former: Richard Gollub (2020–2022) — Chief Financial Officer
- Former: William Joseph (2020–2022) — Board Member
- Former: Douglas P. Loftus (2020) — Chair
- Former: Mark Carroll (2020) — Board Member
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.
Compensation Overview
From 2024 IRS filing
The highest reported compensation on the 2024 filing was $10K, to Cynthia Arcuri (Chief Financial Officer). 2 officers or directors reported compensation on that filing.
Frequently asked questions about TSC Alliance Endowment Fund Inc
How much does TSC Alliance Endowment Fund Inc give each year?
TSC Alliance Endowment Fund Inc gave $246K across 1 grant in 2025, according to its 2025 IRS Form 990. In 2024 it gave $239K across 1 grant.
How large is TSC Alliance Endowment Fund Inc?
TSC Alliance Endowment Fund Inc reported $8.3M in total assets on its 2025 IRS Form 990. Its revenue that year was $830K.
Where does TSC Alliance Endowment Fund Inc operate?
TSC Alliance Endowment Fund Inc has awarded grants in Maryland.
What is TSC Alliance Endowment Fund Inc's EIN?
TSC Alliance Endowment Fund Inc's EIN (Employer Identification Number) is 52-1926919. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(7)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2020 (received by the IRS April 12, 2022)
- Updated Form 990 for fiscal year 2021 (received by the IRS April 11, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS April 14, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS April 17, 2024)
- Updated Form 990 for fiscal year 2024 (received by the IRS April 11, 2025)
- Updated Form 990 for fiscal year 2025 (received by the IRS April 23, 2026)
- IRS filings on file for fiscal years 2020–2025
Live grants for the work TSC Alliance Endowment Fund Inc funds
Philanthropy, Voluntarism & Grantmaking Open opportunities, soonest deadline first.
Explore Open Grants
Browse active grant opportunities in TSC Alliance Endowment Fund Inc's focus areas in our free grants database
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TSC Alliance Endowment Fund Inc down — hundreds of funders to go?