San Mateo County Sheriff's Office Foundation
The foundation was created to help the san Mateo county sheriff's office better serve the residents of san Mateo county by facilitating community- driven initiatives such as wellness initiatives, family assistance and support after a tragedy, parenting support of children who are at-risk or struggling, and educational support of children in the communities served, thereby promoting public safety, community engagement, and a stronger community for all.
Key facts about San Mateo County Sheriff's Office Foundation
In short: San Mateo County Sheriff's Office Foundation gave $3.5M across 1 grant in 2024 (avg $3.5M), mostly in California. Source: 2024 IRS Form 990.
- EIN
- 99-1117508
- Latest 990 filing
- Form 990, 2024
- Annual giving (2024)
- $3,450,000
- Grants made (2024)
- 1
- Average grant
- $3,450,000
- Median grant
- $3,450,000
- Total assets
- $50,041
- Primary geography
- California (100% of itemized 2024 grant dollars)
Data from IRS Form 990, 2024; updated September 2026.
Financial Overview
From 2024 IRS Form 990 · View filing
Total Assets
$50K
Annual Giving
$3.5M
Grant Count
1
Avg Grant Size
$3.5M
About San Mateo County Sheriff's Office Foundation
Based on IRS filings
San Mateo County Sheriff's Office Foundation is a public charity focused on Human Services, based in Redwood City, CA. IRS filing data is available for 2024. As of 2024, the organization holds $50K in total assets. In 2024, it awarded 1 grant totaling $3.5M.
Focus Areas
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2024 grant dollars on its one itemized grant.
States
Cities
Giving Over Time
Total grant dollars and number of grants per year
In 2024 it made 1 grant totaling $3.5M.
Grant Insights
How this funder distributes its grants
Top Recipients
Top recipient in 2024
The largest 2024 recipient was San Mateo County Sheriff's Office County of San Mateo ($3.5M).
Grant Size Distribution
1 grant across all recorded years
The most common grant size was in the $1–5M range: 1 grant of 1 (100%).
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| San Mateo County Sheriff's Office County of San Mateo Redwood City, CA | Facilities REN | $3,450,000 |
Financial History
Multi-year comparison from IRS filings
| Metric | 2024 |
|---|---|
| Total Assets | $50,041 |
| Revenue | $3,500,100 |
| Expenses | $3,450,059 |
Data update history
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2024 (received by the IRS May 15, 2025)
- IRS filings on file for fiscal year 2024
Leadership & Key People
Officers and directors from IRS filings
San Mateo County Sheriff's Office Foundation is led by Victor Aenlle, Chairperson on the 2024 filing; none of the 3 officers listed in 2024 report compensation.
Officers on the 2024 filing
Victor Aenlle
Chairperson
New on the 2024 filing
10 hrs/week
No compensation reported
Lydia Ramirez
Secretary
New on the 2024 filing
20 hrs/week
No compensation reported
Stacey Stevenson
Treasurer
New on the 2024 filing
30 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2024. "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 San Mateo County Sheriff's Office Foundation
How much does San Mateo County Sheriff's Office Foundation give each year?
San Mateo County Sheriff's Office Foundation gave $3.5M across 1 grant in 2024, according to its 2024 IRS Form 990.
How large is San Mateo County Sheriff's Office Foundation?
San Mateo County Sheriff's Office Foundation reported $50K in total assets on its 2024 IRS Form 990. Its revenue that year was $3.5M.
What is San Mateo County Sheriff's Office Foundation?
San Mateo County Sheriff's Office Foundation is a public charity focused on Human Services, based in Redwood City, CA. It holds $50K in total assets as of 2024.
Where does San Mateo County Sheriff's Office Foundation operate?
San Mateo County Sheriff's Office Foundation has awarded grants in California.
What is San Mateo County Sheriff's Office Foundation's EIN?
San Mateo County Sheriff's Office Foundation's EIN (Employer Identification Number) is 99-1117508. IRS Form 990 filing data is available on this page for 2024.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Here's the math on researching San Mateo County Sheriff's Office Foundation by hand.
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