Lakeside Foundation
Lakeside Foundation is a private foundation based in Conshohocken, Pennsylvania. Its 2024 filing reports grants to charitable organizations in several states, including organizations working in child and family support, military and veteran services, health care, wildlife conservation, and cultural education.
Lakeside Foundation at a glance
In short: Lakeside Foundation gave $2.8M across 149 grants in 2024 (avg $19K), top state California. 17% of 2024 grantees were new. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $2,827,000
- +3.1% vs 2023
- Grants made (2024)
- 149
- +0.0% vs 2023
- Average grant
- $18,973
- +3.1% vs 2023
- Median grant
- $10,000
- Total assets
- $47,847,149
- -1.0% vs 2023
- New grantees (estimate)
- 17% first-time grantees (25 of 143, 2024)
- Primary geography
- California (23% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to Lakeside Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.
- Contact
Mailing address: 161 Washington Street Suite 801, Conshohocken, PA 19428
Phone: (650) 845-8100
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Lakeside Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
The largest 2024 recipient was Providence House ($260K across 2 grants). Together the top 10 received $890K.
Organizations only. It also paid 1 grant to individuals ($25,000), which are not listed by name.
Grant Size Distribution
711 grants across all recorded years
The most common grant size was under $50K: 640 grants of 711 (90%).
Geographic Focus
Where this funder awards grants
In 2024, California received 23% of grant dollars, Ohio 20%, Virginia 15%, Massachusetts 9%, and Florida 8%.
Grant Distribution by State
Share of 2024 grant dollars across all 149 itemized grants.
States
Cities
Is Lakeside Foundation open to new grantees?
17%
first-time grantees, 2024
In 2024, 25 of 143 grantees (17%) were first-time recipients. First grants averaged $16K; repeat grants $21K. How we count
Medians: $10K first-time, $10K repeat.
- 80% of 2024 grantees were also funded in 2023. Method
- Giving held roughly steady from 2021 to 2024 (+5%). Method
- In 2024 it paid out 96% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2024). 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 2020 to 2024, annual grant giving ranged from $2.3M (2020) to $2.9M (2022). In 2024 it made 149 grants totaling $2.8M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Providence House Cleveland, OH | Giving Hope for the Phuture Campaign | $250,000 |
| Boston Children's Hospital Trust Boston, MA | General Fund | $100,000 |
| Navy-Marine Corps Relief Society Arlington, VA | General Fund | $100,000 |
| Semper Fi Fund Injured Marine Oceanside, CA | General Fund | $100,000 |
| Broward Health Foundation Fort Lauderdale, FL | General Fund | $50,000 |
| Daughters of Charity Foundation Los Angeles, CA | General Fund | $50,000 |
| Holy Cross Hospital Fort Lauderdale, FL | General Fund | $50,000 |
| Hoover Institution Stanford, CA | General Fund | $50,000 |
| Marine Corps Heritage Foundation Triangle, VA | General Fund | $50,000 |
| Memorial Sloane Kettering Cancer Center New York, NY | General Fund | $50,000 |
Ready to take the next step with Lakeside Foundation?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2024 | $47,847,149 | $2,407,515 | $2,933,083 | $2,827,000 | 149 | $2,827,000 | $2,170,046 | $2,945,053 |
| 2023 | $48,354,573 | $1,822,646 | $2,824,402 | $2,743,000 | 149 | $2,743,000 | $1,706,971 | $2,651,940 |
| 2022 | $49,349,012 | $1,710,578 | $3,013,448 | $2,933,000 | 149 | $2,933,000 | $1,656,919 | $2,764,020 |
| 2021 | $50,683,010 | $3,214,576 | $2,805,243 | $2,698,000 | 149 | $2,698,000 | $3,010,246 | $2,914,768 |
| 2020 | $50,255,948 | $2,143,159 | $2,473,312 | $2,319,000 | 115 | — | $1,941,278 | $2,778,982 |
Under IRS private-foundation payout rules, Lakeside Foundation reported a distributable amount of $2.9M for 2024 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated October 2026.
Mission & Focus Areas
No mission statement for the foundation is provided. Its 2024 grants include support for organizations with varied missions. Providence House says it protects at-risk children and supports families in crisis; the Navy-Marine Corps Relief Society says it builds financial stability and well-being for sailors, marines, and their families. The San Diego Zoo Wildlife Alliance says it works to save species worldwide through wildlife care and conservation science, while the Marine Corps Heritage Foundation says it preserves and shares Marine Corps history and educates Americans about its traditions.
Grantmaking
In 2024, the foundation reported 149 grants totaling $2,827,000. Grants ranged from $1,000 to $250,000, with a median of $10,000. Its largest 2024 grant was $250,000 to Providence House for the Giving Hope for the Phuture Campaign. Other notable grants included $100,000 each to Boston Children's Hospital Trust, the Navy-Marine Corps Relief Society, and Semper Fi Fund Injured Marine, all for general funds; and $50,000 to Broward Health Foundation, Daughters of Charity Foundation, Holy Cross Hospital, and Marine Corps Heritage Foundation.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2024 filing lists Laura D Mateo as president; Wesley D Mateo and Meredith Mateo as directors; Kenneth P Mateo as vice president; and Gregory W Mateo as treasurer/secretary.
Lakeside Foundation is led by Laura D. Mateo, President on every filing since 2020; none of the 5 officers listed in 2024 report compensation.
Officers on the 2024 filing
Laura D. Mateo
President
On filings since 2020
No compensation reported
Meredith Mateo
Director
On filings since 2020
No compensation reported
Wesley D. Mateo
Director
Vice President → Treasurer & Secretary, 2021
Treasurer & Secretary → Director, 2024
On filings since 2020
No compensation reported
Gregory W. Mateo
Treasurer & Secretary
Vice President → Treasurer & Secretary, 2024
On filings since 2020
No compensation reported
Kenneth P. Mateo
Vice President
Treasurer & Secretary → Director, 2021
Director → Vice President, 2024
On filings since 2020
No compensation reported
Data from IRS Form 990 filings, 2020–2024. "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 Lakeside Foundation
How much does Lakeside Foundation give each year?
Lakeside Foundation gave $2.8M across 149 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $2.7M across 149 grants.
What is Lakeside Foundation's typical grant size?
Lakeside Foundation's median grant in 2024 was $10,000, and its average grant was $18,973, across 149 grants on its 2024 IRS Form 990-PF. Organizations receiving their first grant from Lakeside Foundation that year got $16K on average.
Where does Lakeside Foundation give grants?
Lakeside Foundation's top state is California, with 23% of the grant dollars itemized on its 2024 IRS Form 990-PF. The next largest states were Ohio (20%) and Virginia (15%). The most frequent recipient cities were Cleveland, OH (25 grants), Fort Lauderdale, FL (8 grants), Boston, MA (7 grants) and Washington, DC (6 grants).
Does Lakeside Foundation give general operating support?
Yes: 94% of Lakeside Foundation's 2024 grants with a stated purpose (140 of 149) were for general or operating support, per its 2024 IRS Form 990-PF.
Who are Lakeside Foundation's largest grantees?
Lakeside Foundation's largest 2024 grantees include Providence House ($260,000 across 2 grants), Boston Children's Hospital Trust ($100,000) and Navy-Marine Corps Relief Society ($100,000), according to its 2024 IRS Form 990-PF. It also paid 1 grant to individuals ($25,000), which are not listed by name. Together they received 16% of its itemized 2024 grant dollars.
How large is Lakeside Foundation?
Lakeside Foundation reported $47.8M in total assets on its 2024 IRS Form 990-PF. It paid out $2.8M in qualifying distributions that year, against a required minimum of $2.9M (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
What does Lakeside Foundation fund?
No mission statement for the foundation is provided. Its 2024 grants include support for organizations with varied missions. See mission & focus areas ↑
How do I apply for a grant from Lakeside Foundation?
The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Lakeside Foundation's EIN?
Lakeside Foundation's EIN (Employer Identification Number) is 94-6066229. IRS Form 990 filing data is available on this page for 2020–2024.
Does Lakeside 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 October 2026.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
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Cite this profile
Grantable. (2026). Lakeside Foundation funder profile. GrantGraph. Retrieved October 12, 2026, from https://grantable.co/funders/lakeside-foundation-morg_e027bb093e7a42d495b917e8d6013765
BibTeX
@misc{grantable_946066229_2026,
author = {{Grantable}},
title = {{Lakeside Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/lakeside-foundation-morg_e027bb093e7a42d495b917e8d6013765},
note = {Accessed 2026-10-12. 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 Lakeside 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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