Mare Island Navy Yard Post 550 American Legion
Post 550 past & present armed service members make charitable gifts & host events for past & present armed service members. Beginning jan 2022, the American legion post 550 baseball team was reborn to instill a sense of civic pride and baseball skills.
Mare Island Navy Yard Post 550 American Legion at a glance
In short: Mare Island Navy Yard Post 550 American Legion reported $11K in grants paid in 2025 (a total; its filing lists no individual grants). Source: 2025 IRS Form 990.
- Grants paid (2025)
- $11,250 — reported as a total on the IRS filing, without an itemized list
- +5.6% vs 2024
- Total assets
- $1,874,005
- +4.2% vs 2024
- Revenue (2025)
- $12,088
- -60.4% vs 2024
- Net investment income (2025)
- $7,177
- -66.9% vs 2024
- Expenses (2025)
- $84,872
- +43.6% vs 2024
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated September 2026.
Who Mare Island Navy Yard Post 550 American Legion funds
How this funder distributes its grants
Grant Size Distribution
1 grant across all recorded years
The most common grant size was in the $50–100K range: 1 grant of 1 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
States
Cities
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2021 to 2025, annual grant giving ranged from $6K (2023) to $70K (2021). In 2025 it reported $11K in grants paid, as a total without an itemized list.
Hatched bars: grants paid as reported on the IRS filing, which lists no individual grants for that year.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Vallejo Veterans Building Council Vallejo, CA | Building Remodeling Requirements | $70,200 |
Ready to take the next step with Mare Island Navy Yard Post 550 American Legion?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $1,874,005 | $12,088 | $84,872 | $11,250 | Total only | $7,177 |
| 2024 | $1,798,207 | $30,502 | $59,105 | $10,657 | Total only | $21,696 |
| 2023 | $1,523,758 | $24,832 | $73,831 | $6,094 | Total only | $10,052 |
| 2022 | $1,096,495 | $13,136 | $64,174 | $10,323 | Total only | $944 |
| 2021 | $1,147,333 | $55,316 | $100,200 | $70,200 | 1 | $48,802 |
"Total only": grants paid as reported on the IRS filing, which lists no individual grants for that year.
About Mare Island Navy Yard Post 550 American Legion
Based on IRS filings
Mare Island Navy Yard Post 550 American Legion is a public charity, based in Vallejo, CA. IRS filing data is available from 2021 through 2025. As of 2025, the organization holds $1.9M in total assets. In 2025, it reported $11K in grants paid as a total on its IRS filing, without an itemized list. Net investment income was $7K.
Leadership & Key People
Officers and directors from IRS filings
Mare Island Navy Yard Post 550 American Legion is led by Robert Mattson, Commander CEO since 2024 (on filings since 2023); 1 of 7 officers listed in 2025 is compensated.
Officers on the 2025 filing
Robert Mattson
Commander CEO
Judge Advocate → Commander CEO, 2024
On filings since 2023
10 hrs/week
No compensation reported
Robert J. J. Smith
Finance Officer CFO
Junior Past Commander → Treasurer, 2022
Treasurer → Finance Officer CFO, 2023
On filings since 2021
20 hrs/week
$3K (2024) → $4K (2025)
Alvin Bruce
Adjutant Secretary
On filings since 2023
15 hrs/week
$3K (2024) → $0 (2025)
Norman Dostal
1st Vice Commander
Commander → 2nd Vice Commander Junior Past, 2023
2nd Vice Commander Junior Past → 1st Vice Commander, 2024
On filings since 2021
5 hrs/week
No compensation reported
George Fuller
1st Vice Commander
2nd Vice Commander → 1st Vice Commander, 2023
On filings since 2022
5 hrs/week
No compensation reported
Jasper McCargo
Chaplain
On filings since 2023
5 hrs/week
No compensation reported
Michael Johnson
Sergeant at Arms
On filings since 2023
5 hrs/week
No compensation reported
Former officers (5)
- Former: Dennis Clemente (2023–2024) — Commander CEO
- Former: Gary Blackburn (2021–2022) — Adjutant Judge Chaplain
- Former: Gary Savelli (2021–2022) — 1st Vice Commander
- Former: Roland J. Shorter Jr. (2021–2022) — Junior Past Commander
- Former: John Baptista (2021) — Treasurer
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 $4K, to Robert J J Smith (Finance Officer CFO).
Frequently asked questions about Mare Island Navy Yard Post 550 American Legion
How much does Mare Island Navy Yard Post 550 American Legion give each year?
Mare Island Navy Yard Post 550 American Legion reported $11K in grants paid in 2025 on its 2025 IRS Form 990, as a total without an itemized list of grants. In 2024 it reported $11K in grants paid.
How large is Mare Island Navy Yard Post 550 American Legion?
Mare Island Navy Yard Post 550 American Legion reported $1.9M in total assets on its 2025 IRS Form 990. Its revenue that year was $12K.
Where does Mare Island Navy Yard Post 550 American Legion operate?
Mare Island Navy Yard Post 550 American Legion has awarded grants in California.
What is Mare Island Navy Yard Post 550 American Legion's EIN?
Mare Island Navy Yard Post 550 American Legion's EIN (Employer Identification Number) is 94-1059523. IRS Form 990 filing data is available on this page for 2021–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2021 (received by the IRS January 25, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS September 2, 2022)
- Updated Form 990 for fiscal year 2023 (received by the IRS November 14, 2023)
- Updated Form 990 for fiscal year 2024 (received by the IRS October 10, 2025)
- Updated Form 990 for fiscal year 2025 (received by the IRS October 13, 2025)
- IRS filings on file for fiscal years 2021–2025
Explore Open Grants
Browse active grant opportunities in Mare Island Navy Yard Post 550 American Legion's focus areas in our free grants database
Similar Funders
Similar funders in California
Silicon Valley Community Foundation
Mountain View, CA
Silicon Valley Community Foundation funds work in areas such as housing, economic security, education, health, the environment, arts and culture, and civic engagement, with Community Action Grants supporting local, community-led organizations in San Mateo and Santa Clara counties. Its 2024 grants had a median of $51,716, though amounts varied widely; applications depend on the program, and SVCF states that it does not accept unsolicited proposals for advised funds.
Assets
$12.3B
Grants
3,576
Total Given
$3.2B
California Community Foundation
Los Angeles, CA
The California Community Foundation supports nonprofits through discretionary and donor-directed grants, with discretionary priorities including education, health, housing and immigration, alongside other areas such as arts, civic engagement and economic opportunity. Its 2025 grants had a median of $50,000, and its work is focused on Los Angeles County; prospective discretionary applicants are asked to contact the relevant program officer before submitting a letter of intent.
Assets
$2.3B
Grants
2,174
Total Given
$326.6M
The William & Flora Hewlett Foundation
Menlo Park, CA
The William & Flora Hewlett Foundation funds education, climate and conservation, the arts, democracy, gender equity, racial justice, and efforts to strengthen nonprofits and philanthropy, with work spanning the San Francisco Bay Area, the U.S. West, and locations including East and West Africa and Mexico. Its 2024 grants had a median award of $150,000, though amounts varied widely. It generally does not accept unsolicited requests, but sometimes invites proposals through open processes.
Assets
$14.2B
Grants
2,001
Total Given
$625.0M
Marin Community Foundation
Novato, CA
Marin Community Foundation funds work in affordable housing and homelessness, community resilience and power, as well as social services, education, arts and conservation, with a focus on marginalized Marin County residents and some broader U.S. and international grantmaking. Its 2025 grants had a median of $25,000, though amounts varied widely. The profile does not state whether it accepts unsolicited requests.
Assets
$1.3B
Grants
1,573
Total Given
$186.1M
Conrad N Hilton Foundation
Westlake Village, CA
The Conrad N. Hilton Foundation funds nonprofits working to improve lives and alleviate poverty, with initiatives including early childhood development, homelessness, refugees, safe water, and support for foster and opportunity youth. Its work is global, and its 2024 grants had a median award of $76,000. It generally does not accept unsolicited requests, except through its Good Neighbor Program for eligible local nonprofits and Title 1 schools.
Assets
$7.4B
Grants
1,339
Total Given
$287.7M
The California Endowment
Los Angeles, CA
The California Endowment funds nonprofit, government, and eligible faith-based organizations working to advance health and racial equity, strengthen community power, and improve health systems and communities, primarily in California. Its 2024 median grant was $100,000, and funding is by invitation only; it does not accept unsolicited requests.
Assets
$4.5B
Grants
1,125
Total Given
$215.9M
More similar funders
More Funders in California
The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open
Figures come from Mare Island Navy Yard Post 550 American Legion'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.
Mare Island Navy Yard Post 550 American Legion down — hundreds of funders to go?