Florida · Nonprofit
The Island School Foundation Inc
The Island School Foundation Inc (Florida) receives grants from 27 organizations whose IRS filings report $1,893,185 to it, the largest being THE WILLIAM STAMPS FARISH FUND ($425,000). 14 of them have funded it in more than one year.
- Revenue FY2025
- $819k
- Funders on record
- 27
- Grants received
- $1.9M
- Net assets
- $12M
What The Island School Foundation Inc does
Mission
The island school foundation is dedicated to the advancement of education of boca grande, florida. Supporting community residents and workers employed by local businesses, and strives to create an endowment that will help fund the school's operation in perpetuity. In addition, the foundation strives to support other educational programs benefiting residents.
As stated on its FY2022 Form 990.
Program
The Island School Foundation is dedicated to the advancement of education of Boca Grande, FL. Supporting Community residents and workers employed by local businesses, and strives to create an endowment that will help fund the schools operation in perpetuity. In addition, the foundation strives to support other educational programs benefiting residents.
$454,000 spentof which $454,000 as grants$247,503 earned by the program100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $454,000.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2020 to 2021, from $8.5M to $11M (+27%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
30% of The Island School Foundation Inc’s revenue is contributions — about as donation-reliant as the typical peer (57% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 1 of the last 9 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Board chair
Mary Johnston
Chair
As listed on its FY2025 Form 990.
Who funds it, year by year
2017 → 2023: the base narrowed from 13 funders to 10 funders, grant income fell $505k → $251k.
6 of 27 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 28% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
Left out of every figure on this page: $195k from one payer (the payer shares this organization's board, largest Boca Grande Woman's Club Inc). These are real filings, and they are not money The Island School Foundation Inc raised.
From the IRS filings of The Island School Foundation Inc’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
The Island School Foundation Inc has a broad base — no single funder exceeds 22% of grant income, and it takes 3 funders to reach half.
the vertical line marks half of all grant income — 3 funders to its left
28% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund The Island School Foundation Inc.
Largest funder’s share by year: 2017 25% · 2018 44% · 2019 39% · 2020 41% · 2021 34% · 2022 27% · 2023 40% — growing more concentrated.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How long its funders stay
33% of The Island School Foundation Inc's funders are still giving 3 years after their first grant; 52% give in more than one year at all.
Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.
Where its funders are
The Island School Foundation Inc draws 83% of its grant income from funders outside Florida, across 11 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $528k arriving through sponsors registered in 5 states is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Against its field
The Island School Foundation Inc runs a healthier operating margin than three-quarters of the 17,450 education nonprofits its size.
this organization peer median middle 50% of peers· 17,450 education nonprofits $100k–$1M, FY2025
Organizations like The Island School Foundation Inc
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In Florida
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
96% of spending goes to programs.
Governance
Public support
54%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Part of a family of 1 related entity
- The Island School Inc · exempt
Screen this organization
A dated, signed PDF of the compliance screen for The Island School Foundation Inc: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds The Island School Foundation Inc?
- The Island School Foundation Inc (Florida) receives grants from 27 organizations whose IRS filings report $1,893,185 to it, the largest being THE WILLIAM STAMPS FARISH FUND ($425,000). 14 of them have funded it in more than one year.
- How many funders does The Island School Foundation Inc have?
- IRS filings report 27 organizations giving $1,893,185 in grants to The Island School Foundation Inc, 14 of which have funded it in more than one year.
- Who is the largest funder of The Island School Foundation Inc?
- THE WILLIAM STAMPS FARISH FUND is the largest funder on record, with $425,000 in grants. The full list of funders is on this page.
- How can an organization like The Island School Foundation Inc find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Florida. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 27 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 22, 2026. What this page cannot tell you · view filing