The Riordan Foundation
The Riordan Foundation is a private foundation, based in New York, NY. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $29K in total assets. In 2025, it awarded 3 grants totaling $15K. Net investment income was $22.
The Riordan Foundation at a glance
In short: The Riordan Foundation gave $15K across 3 grants in 2025 (avg $5K), mostly in Maryland. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $14,700
- -26.4% vs 2024
- Grants made (2025)
- 3
- +50.0% vs 2024
- Average grant
- $4,900
- -50.9% vs 2024
- Median grant
- $5,000
- Total assets
- $29,460
- -34.0% vs 2024
- Primary geography
- Maryland (63% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026.
Who The Riordan Foundation funds
How this funder distributes its grants
Top Recipients
Top 3 recipients in 2025
The largest 2025 recipient was Doctors Without Borders ($9K). Together the top 3 received $15K.
Grant Size Distribution
13 grants across all recorded years
The most common grant size was under $50K: 13 grants of 13 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 3 itemized grants.
Cities
How The Riordan Foundation gives
- Giving grew 145% from 2022 to 2025. Method
- In 2025 it paid out 832% of its IRS minimum distribution (the 5% rule). Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2025, annual grant giving ranged from $3K (2019) to $22K (2023). In 2025 it made 3 grants totaling $15K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Doctors Without Borders Hagerstown, MD | Charitable | $9,200 |
| Community Access to the Arts Great Barrington, MA | Charitable | $5,000 |
| ACLU Foundation New York, NY | Charitable | $500 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $29,460 | $22 | $15,168 | $14,700 | 3 | $15,168 | $22 | $1,824 |
| 2024 | $44,606 | $193 | $20,329 | $19,968 | 2 | $20,329 | $193 | $2,690 |
| 2023 | $64,742 | $379 | $22,352 | $22,000 | 4 | $22,352 | $379 | $3,725 |
| 2022 | $86,715 | $134 | $6,350 | $6,000 | 2 | $6,350 | $134 | $4,534 |
| 2021 | $92,931 | $100,036 | $8,435 | $8,100 | 2 | $8,435 | $1 | $2,445 |
| 2020 | $1,330 | $1 | $4,335 | $4,000 | 1 | — | $1 | $172 |
| 2019 | $5,664 | $21 | $3,301 | $3,000 | 2 | — | $21 | $359 |
Under IRS private-foundation payout rules, The Riordan Foundation reported a distributable amount of $2K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
The Riordan Foundation's 2025 filing lists 2 officers; none of the 2 officers listed in 2025 report compensation.
Officers on the 2025 filing
Carol Jay Riordan
Trustee
On filings since 2019
1 hr/week
No compensation reported
Michael H. Riordan
Trustee
On filings since 2019
1 hr/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 The Riordan Foundation
How much does The Riordan Foundation give each year?
The Riordan Foundation gave $15K across 3 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $20K across 2 grants.
What is The Riordan Foundation's typical grant size?
The Riordan Foundation's median grant in 2025 was $5,000, and its average grant was $4,900, across 3 grants on its 2025 IRS Form 990-PF.
Where does The Riordan Foundation give grants?
The Riordan Foundation gives mostly in Maryland: 63% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was Massachusetts (34%).
Does The Riordan Foundation give general operating support?
Not in 2025: none of the 3 grants with a stated purpose on The Riordan Foundation's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Charitable" (3 grants).
How large is The Riordan Foundation?
The Riordan Foundation reported $29K in total assets on its 2025 IRS Form 990-PF. It paid out $15K in qualifying distributions that year, against a required minimum of $2K (roughly 5% of its investment assets).
What is The Riordan Foundation's EIN?
The Riordan Foundation's EIN (Employer Identification Number) is 04-3559852. 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.
Data update history
(8)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2019 (received by the IRS March 6, 2020)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS March 16, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS March 10, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS March 28, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS February 26, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS February 25, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS March 24, 2026)
- IRS filings on file for fiscal years 2019–2025
Live grants for the work The Riordan Foundation funds
Philanthropy, Voluntarism & Grantmaking Open opportunities, soonest deadline first.
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Browse active grant opportunities in The Riordan Foundation's focus areas in our free grants database
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