Sidley Family Foundation
Sidley Family Foundation is a private foundation based in Wilmington, Delaware. Its 2025 filing reports grants to charitable organizations working in areas including reproductive health, immigrant rights, public policy, hunger relief, environmental education, media, and fire relief.
Sidley Family Foundation at a glance
In short: Sidley Family Foundation gave $218K across 16 grants in 2025 (avg $14K), mostly in California. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $217,500
- +35.9% vs 2024
- Grants made (2025)
- 16
- +128.6% vs 2024
- Average grant
- $13,594
- -40.5% vs 2024
- Median grant
- $10,000
- Total assets
- $3,093,131
- -7.3% vs 2024
- Primary geography
- California (51% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026.
How to apply to Sidley Family Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation does not accept unsolicited requests for funds and states that it makes contributions only to preselected charitable organizations.
- Contact
Mailing address: Foundation Source 501 Silverside Rd, Wilmington, DE 19809-1377
Phone: (800) 839-1754
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Sidley Family Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Alzheimer's Disease and Related Disorders Associat ($25K). Together the top 10 received $180K.
Grant Size Distribution
30 grants across all recorded years
The most common grant size was under $50K: 29 grants of 30 (97%).
Geographic Focus
Where this funder awards grants
The 2025 grant dollars went to recipients in California (51%), the District of Columbia (30%), Minnesota (11%), Colorado (6%), and Kentucky (2%).
Grant Distribution by State
Share of 2025 grant dollars across all 16 itemized grants.
Cities
How Sidley Family Foundation gives
- 25% of 2025 grantees were also funded in 2024. Method
- Giving grew 444% from 2022 to 2025. Method
- In 2025 it paid out 101% of its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2022 to 2025, annual grant giving ranged from $40K (2022) to $218K (2025). In 2025 it made 16 grants totaling $218K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Alzheimer's Disease and Related Disorders Associat Washington, DC | General & Unrestricted | $25,000 |
| Center for American Progress Washington, DC | General & Unrestricted | $25,000 |
| Immigrant Legal Resource Center San Francisco, CA | General & Unrestricted | $25,000 |
| Mazon Inc a Jewish Response to Hunger Albert Lea, MN | General & Unrestricted | $25,000 |
| Planned Parenthood Los Angeles Los Angeles, CA | General & Unrestricted | $25,000 |
| Democracy Forward Foundation Washington, DC | General & Unrestricted | $15,000 |
| Aspen Center for Environmental Studies Aspen, CO | General & Unrestricted | $10,000 |
| Homeboy Industries Los Angeles, CA | General & Unrestricted | $10,000 |
| International Medical Corps Los Angeles, CA | Los Angeles Fire Relief Efforts | $10,000 |
| KCRW Foundation Inc Santa Monica, CA | General & Unrestricted | $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 | $3,093,131 | $39,600 | $283,375 | $217,500 | 16 | $250,884 | $7,421 | $248,513 |
| 2024 | $3,336,906 | $1,695 | $223,213 | $160,000 | 7 | $192,013 | $22,439 | $230,487 |
| 2023 | $3,558,424 | $-44,284 | $198,281 | $142,000 | 5 | $172,111 | $24,486 | $185,859 |
| 2022 | $3,800,989 | $-108,391 | $91,834 | $40,000 | 2 | $69,981 | $14,762 | $173,370 |
| 2021 | $4,001,214 | $4,013,146 | $11,932 | — | — | $10,412 | $1,626 | $70,973 |
Under IRS private-foundation payout rules, Sidley Family Foundation reported a distributable amount of $249K for 2025 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
No mission statement for the foundation is provided. Its 2025 grants went to organizations whose work includes reproductive health care and education (Planned Parenthood Los Angeles), immigrant rights and legal education (Immigrant Legal Resource Center), and policy research (Center for American Progress). The Center for American Progress describes itself as a nonpartisan policy institute advancing progressive ideas. Democracy Forward Foundation says it works to protect democratic rights and institutions through legal and administrative processes.
Other 2025 grantees describe work in public radio and local information (KCRW Foundation), community philanthropy and grants (Pasadena Community Foundation), support for the Los Angeles Fire Department (Los Angeles Fire Department Foundation), and fundraising for environmental education (Aspen Center for Environmental Studies).
Grantmaking
In filing year 2025, the foundation gave $217,500 through 16 grants. Grants ranged from $2,500 to $25,000, with a median grant of $10,000. The largest listed grants included $25,000 each to Alzheimer’s Disease and Related Disorders Association, Center for American Progress, Immigrant Legal Resource Center, MAZON, and Planned Parenthood Los Angeles. Other listed grants included $15,000 to Democracy Forward Foundation and $10,000 each to Aspen Center for Environmental Studies, Homeboy Industries, International Medical Corps, KCRW Foundation, Los Angeles Fire Department Foundation, and Pasadena Community Foundation.
The filing lists the International Medical Corps grant for Los Angeles fire relief efforts and the Pasadena Community Foundation grant for its Eaton Fire Relief and Recovery Fund; the other listed grants are identified as general and unrestricted.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Ally Sidley, Jane Sidley, and Wendy Sidley as directors. Michael Sidley is listed as director, president, secretary, and treasurer.
Sidley Family Foundation is led by Michael Sidley, Director, President, Secretary & Treasurer on every filing since 2021; 2 of 4 officers listed in 2025 are compensated.
Officers on the 2025 filing
Michael Sidley
Director, President, Secretary & Treasurer
On filings since 2021
1 hr/week
No compensation reported
Ally Sidley
Director
On filings since 2021
5 hrs/week
$6K (2022) → $6K (2025)
Jane Sidley
Director
On filings since 2021
5 hrs/week
$6K (2022) → $6K (2025)
Wendy Sidley
Director
On filings since 2021
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2021–2025. "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 $6K, to Ally Sidley (Dir). 2 officers or directors reported compensation on that filing.
Frequently asked questions about Sidley Family Foundation
How much does Sidley Family Foundation give each year?
Sidley Family Foundation gave $218K across 16 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $160K across 7 grants.
What is Sidley Family Foundation's typical grant size?
Sidley Family Foundation's median grant in 2025 was $10,000, and its average grant was $13,594, across 16 grants on its 2025 IRS Form 990-PF.
Where does Sidley Family Foundation give grants?
Sidley Family Foundation gives mostly in California: 51% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were District of Columbia (30%) and Minnesota (11%). The most frequent recipient cities were Los Angeles, CA (4 grants), Washington, DC (3 grants) and Aspen, CO (2 grants).
Does Sidley Family Foundation give general operating support?
Yes: 88% of Sidley Family Foundation's 2025 grants with a stated purpose (14 of 16) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are Sidley Family Foundation's largest grantees?
Sidley Family Foundation's largest 2025 grantees include Alzheimer's Disease and Related Disorders Associat ($25,000), Center for American Progress ($25,000) and Immigrant Legal Resource Center ($25,000), according to its 2025 IRS Form 990-PF. Together they received 34% of its itemized 2025 grant dollars.
How large is Sidley Family Foundation?
Sidley Family Foundation reported $3.1M in total assets on its 2025 IRS Form 990-PF. It paid out $251K in qualifying distributions that year, against a required minimum of $249K (roughly 5% of its investment assets).
What does Sidley Family Foundation fund?
No mission statement for the foundation is provided. See mission & focus areas ↑
How do I apply for a grant from Sidley Family Foundation?
The foundation does not accept unsolicited requests for funds and states that it 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 Sidley Family Foundation's EIN?
Sidley Family Foundation's EIN (Employer Identification Number) is 87-0928050. IRS Form 990 filing data is available on this page for 2021–2025.
Does Sidley Family Foundation accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2021 (received by the IRS May 10, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS June 20, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 9, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS May 15, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 6, 2026)
- IRS filings on file for fiscal years 2021–2024
Explore Open Grants
Browse active grant opportunities in Sidley Family Foundation's focus areas in our free grants database
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Cite this profile
Grantable. (2026). Sidley Family Foundation funder profile. GrantGraph. Retrieved October 11, 2026, from https://grantable.co/funders/sidley-family-foundation-morg_475d9a845e1f4a05bbc09802b486c4dd
BibTeX
@misc{grantable_870928050_2026,
author = {{Grantable}},
title = {{Sidley Family Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/sidley-family-foundation-morg_475d9a845e1f4a05bbc09802b486c4dd},
note = {Accessed 2026-10-11. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from Sidley Family Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
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