Arline & Thomas Bannan Foundation
Arline & Thomas Bannan Foundation is a private foundation, based in Los Angeles, CA. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $829K in total assets. In 2025, it awarded 5 grants totaling $70K. Net investment income was $36K.
Arline & Thomas Bannan Foundation at a glance
In short: Arline & Thomas Bannan Foundation gave $70K across 5 grants in 2025 (avg $14K), mostly in California. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $70,000
- +0.0% vs 2024
- Grants made (2025)
- 5
- +0.0% vs 2024
- Average grant
- $14,000
- +0.0% vs 2024
- Median grant
- $10,000
- Total assets
- $829,070
- -7.3% vs 2024
- Primary geography
- California (86% 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 Arline & Thomas Bannan Foundation funds
How this funder distributes its grants
Top Recipients
Top 5 recipients in 2025
The largest 2025 recipient was California Science Center Foundation ($20K). Together the top 5 received $70K.
Grant Size Distribution
25 grants across all recorded years
The most common grant size was under $50K: 25 grants of 25 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 5 itemized grants.
States
Cities
How Arline & Thomas Bannan Foundation gives
- Giving held roughly steady from 2022 to 2025 (+15%). Method
- In 2025 it paid out 230% 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 $61K (2022) to $85K (2020). In 2025 it made 5 grants totaling $70K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| California Science Center Foundation Los Angeles, CA | To Further Charitable Purposes | $20,000 |
| Loyola High School of Los Angeles Los Angeles, CA | To Further Charitable Purposes | $20,000 |
| California Province of the Society of Jesus Los Gatos, CA | To Further Charitable Purposes | $10,000 |
| Catholic Charities of Los Angeles Los Angeles, CA | To Further Charitable Purposes | $10,000 |
| Vatican Observatory Foundation Tucson, AZ | To Further Charitable Purposes | $10,000 |
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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 | $829,070 | $47,886 | $106,557 | $70,000 | 5 | $94,696 | $36,027 | $41,180 |
| 2024 | $894,713 | $41,788 | $106,914 | $70,000 | 5 | $93,847 | $31,187 | $43,938 |
| 2023 | $949,954 | $28,922 | $106,895 | $71,000 | 6 | $94,403 | $25,121 | $46,219 |
| 2022 | $1,027,927 | $-12,156 | $98,063 | $61,000 | 5 | $84,841 | $13,811 | $50,957 |
| 2021 | $1,138,146 | $32,542 | $111,778 | $75,000 | 4 | $98,711 | $19,905 | $58,730 |
| 2020 | $1,227,392 | $34,918 | $121,645 | $85,000 | 4 | — | $24,490 | $61,954 |
| 2019 | $1,304,109 | $50,942 | $113,290 | $75,000 | 4 | — | $38,491 | $65,510 |
Under IRS private-foundation payout rules, Arline & Thomas Bannan Foundation reported a distributable amount of $41K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Arline & Thomas Bannan Foundation is led by Karen Dalby, President on every filing since 2019; all 3 officers listed in 2025 are compensated.
Officers on the 2025 filing
Karen Dalby
President
On filings since 2019
2 hrs/week
$8K (2019) → $8K (2025)
Benjamin Dalby
Vice President
On filings since 2019
2 hrs/week
$8K (2019) → $8K (2025)
Nm Grossman
Secretary
On filings since 2019
10 hrs/week
$8K (2019) → $8K (2025)
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.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $8K, to Karen Dalby (President). 3 officers or directors reported compensation on that filing.
Frequently asked questions about Arline & Thomas Bannan Foundation
How much does Arline & Thomas Bannan Foundation give each year?
Arline & Thomas Bannan Foundation gave $70K across 5 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $70K across 5 grants.
What is Arline & Thomas Bannan Foundation's typical grant size?
Arline & Thomas Bannan Foundation's median grant in 2025 was $10,000, and its average grant was $14,000, across 5 grants on its 2025 IRS Form 990-PF.
Where does Arline & Thomas Bannan Foundation give grants?
Arline & Thomas Bannan Foundation gives mostly in California: 86% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was Arizona (14%). The most frequent recipient cities were Los Angeles, CA (3 grants).
Who are Arline & Thomas Bannan Foundation's largest grantees?
Arline & Thomas Bannan Foundation's largest 2025 grantees include California Science Center Foundation ($20,000), Loyola High School of Los Angeles ($20,000) and California Province of the Society of Jesus ($10,000), according to its 2025 IRS Form 990-PF. Together they received 71% of its itemized 2025 grant dollars.
How large is Arline & Thomas Bannan Foundation?
Arline & Thomas Bannan Foundation reported $829K in total assets on its 2025 IRS Form 990-PF. It paid out $95K in qualifying distributions that year, against a required minimum of $41K (roughly 5% of its investment assets).
What is Arline & Thomas Bannan Foundation's EIN?
Arline & Thomas Bannan Foundation's EIN (Employer Identification Number) is 91-6029798. 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
(3)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2019 (received by the IRS July 2, 2020)
- Added Form 990-PF for fiscal year 2025 (received by the IRS April 27, 2026)
- IRS filings on file for fiscal years 2020–2024
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