Mariner Foundation
Funding Overview
From IRS Form 990 filings · 2022–2025
Total received
$2.9M
Foundation funders
2
Grants recorded
4
Years covered
2022–2025
Who funds Mariner Foundation?
Mariner Foundation is funded by 2 grantmakers, led by Mountain Island Day Community Charter School ($2.6M), The Kaplan Sisters Foundation ($273K). In total, IRS Form 990 filings record $2.9M in grants to Mariner Foundation between 2022–2025.
| Funder | Total given | Grants | Years |
|---|---|---|---|
| Mountain Island Day Community Charter School | $2,613,354 | 3 | 2023–2025 |
| The Kaplan Sisters Foundation | $273,192 | 1 | 2022 |
Funding over time
Grant dollars and counts received per year
From 2022 to 2025, annual grant giving ranged from $183K (2025) to $2.0M (2023). In 2025 it made 1 grant totaling $183K.
What grants has Mariner Foundation received?
Individual grants from IRS Form 990 filings, newest first
| Year | Funder | Purpose | Amount |
|---|---|---|---|
| 2025 | Mountain Island Day Community Charter School | Construction of New Facility | $183,118 |
| 2024 | Mountain Island Day Community Charter School | Construction of New Facility | $474,169 |
| 2023 | Mountain Island Day Community Charter School | Construction of New Facility | $1,956,067 |
| 2022 | The Kaplan Sisters Foundation | GENERAL PURPOSE | $273,192 |
Frequently Asked Questions
Who funds Mariner Foundation?
Mariner Foundation is funded by 2 grantmakers, led by Mountain Island Day Community Charter School ($2.6M), The Kaplan Sisters Foundation ($273K). In total, IRS Form 990 filings record $2.9M in grants to Mariner Foundation between 2022–2025.
Who is Mariner Foundation's largest funder?
Mountain Island Day Community Charter School is the largest recorded funder of Mariner Foundation, with $2.6M across 3 grants (2023–2025).
How much grant funding has Mariner Foundation received?
IRS 990 filings record $2.9M in grants to Mariner Foundation across 4 grants from 2 funders between 2022–2025. Filings are published on a delay, so recent grants may not appear yet.
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Grant data is drawn from IRS Form 990 filings via Grantable's GrantGraph™. Filings are published on a delay; recent grants may not appear yet.
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