Lakeside Foundation
Lakeside Foundation is a private foundation based in Conshohocken, Pennsylvania. Incorporated in 1953 in California, the organization has been tax-exempt since January 1956. The foundation operates as a 501(c)(3) charitable organization and is classified as a private grantmaking foundation.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$47.8M
-1.0% YoY
Annual Giving
$2.8M
+3.1% YoY
Grant Count
149
+0.0% YoY
Avg Grant Size
$19K
+3.1% YoY
Mission & Focus Areas
The foundation supports the charitable interests of its directors. Primary funding focus areas include:
- Education
- Philanthropy, Voluntarism & Grantmaking
- Human Services
- Wildlife
- Environmental Education
- Community and School Gardens
- Veteran Support
Grantmaking
Average Grant
amount and median grant amount data not specified in available sources
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Geographic Focus
Where this funder awards grants
The foundation primarily funds organizations in:
- California
- Ohio
- Virginia
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
As of December 2024:
- Total Assets: $47,847,149
- Total Revenues: $2,407,515
- Total Expenses: $2,933,083
- Total Liabilities: $461
Historical Data (2023):
- Revenue: $1,822,646
- Expenses: $2,820,000
- Total Assets: $48,400,000
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $47,847,149 | $48,354,573 | $49,349,012 |
| Revenue | $2,407,515 | $1,822,646 | $1,710,578 |
| Expenses | $2,933,083 | $2,824,402 | $3,013,448 |
| Qualifying Distributions | $2,827,000 | $2,743,000 | $2,933,000 |
| Net Investment Income | $2,170,046 | $1,706,971 | $1,656,919 |
| Distributable Amount | $2,945,053 | $2,651,940 | $2,764,020 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
Grant Size Distribution
250 grants across all recorded years
Giving History
Grant recipients and amounts by year
No grants recorded for .
Leadership & Key People
Leadership team and compensation from IRS filings
- Laura Mateo - President (as of November 2024)
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| LAURA D MATEO | PRESIDENT | — | — |
| WESLEY D MATEO | DIRECTOR | — | — |
| KENNETH P MATEO | VICE PRESIDENT | — | — |
| GREGORY W MATEO | TREASURER/SECRETARY | — | — |
| MEREDITH MATEO | DIRECTOR | — | — |
Contact Information
Address: 161 Washington Street, Suite 801 Conshohocken, PA 19428-2023
Telephone: 650-845-8100
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Data last updated April 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.
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