California · Nonprofit
Treasure Island Sailing Center Foundation
Treasure Island Sailing Center Foundation (California) receives grants from 14 organizations whose IRS filings report $1,045,314 to it, the largest being ST FRANCIS SAILING FOUNDATION ($568,996). 11 of them have funded it in more than one year.
- Revenue FY2025
- $375k
- Funders on record
- 14
- Grants received
- $1.0M
- Net assets
- $4.3M
What Treasure Island Sailing Center Foundation does
Mission
TISC students participate in positive, skill building experiences learning water safety, responsibility, respect, communication, teamwork, leadership, and appreciation for their environment. TISC is a large scale, multiuser, year round sailing school on San Francisco Bay operated by dedicated staff and volunteers, emphasizing full community involvement by offering access to all, regardless of financial ability.
As stated on its FY2025 Form 990.
Program
The Treasure Island Sailing Center provides instructional and recreational sailing opportunities to youth and adults of all abilities and socioeconomic backgrounds from the San Francisco Bay Area. However,the Board and management decided to pause operations and programs for two to three years, as the City of San Francisco has moved to rebuild the newest neighborhood of Treasure Island and to accelerate improvements in the new home center.
The program described on its FY2025 Form 990.
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 2021 to 2022, from $4.7M to $3.7M (−21%).
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.
Government-grant reliance: 2017 14% · 2018 28% · 2019 33% · 2020 27% · 2021 49% · 2022 47% · 2023 43% · 2024 31% · 2025 7%. Grants only. Government contracts and fees sit inside program revenue.
11% of Treasure Island Sailing Center Foundation’s revenue is contributions — about as donation-reliant as the typical peer (18% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 6 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.
Who funds it, year by year
2017 → 2023: the base narrowed from 7 funders to 6 funders, grant income rose $107k → $139k.
7 of 14 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 22% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
From the IRS filings of Treasure Island Sailing Center Foundation’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
Treasure Island Sailing Center Foundation leans on a few funders — its largest provides 54% of grant income and the top three 76%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
76% 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 Treasure Island Sailing Center Foundation.
Largest funder’s share by year: 2017 47% · 2018 51% · 2019 39% · 2020 36% · 2021 92% · 2022 46% · 2023 54% — 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
30% of Treasure Island Sailing Center Foundation's funders are still giving 3 years after their first grant; 79% 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
97% of Treasure Island Sailing Center Foundation's grant income comes from California funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $229k 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
Treasure Island Sailing Center Foundation runs a healthier operating margin than three-quarters of the 10,453 recreation & sports nonprofits its size.
this organization peer median middle 50% of peers· 10,453 recreation & sports nonprofits $100k–$1M, FY2025
Government funding Treasure Island Sailing Center Foundation receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $100k on record.
- Department of Commerce$100k
Federal grants vs contracts are distinguished; state line items keep their reported category. Matched by name + geography (the BMF), so coverage is partial and precision-first.
Organizations like Treasure Island Sailing Center Foundation
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 California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
0% of spending goes to programs.
Governance
Public support
80%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for Treasure Island Sailing Center Foundation: 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 Treasure Island Sailing Center Foundation?
- Treasure Island Sailing Center Foundation (California) receives grants from 14 organizations whose IRS filings report $1,045,314 to it, the largest being ST FRANCIS SAILING FOUNDATION ($568,996). 11 of them have funded it in more than one year.
- How many funders does Treasure Island Sailing Center Foundation have?
- IRS filings report 14 organizations giving $1,045,314 in grants to Treasure Island Sailing Center Foundation, 11 of which have funded it in more than one year.
- Who is the largest funder of Treasure Island Sailing Center Foundation?
- ST FRANCIS SAILING FOUNDATION is the largest funder on record, with $568,996 in grants. The full list of funders is on this page.
- How can an organization like Treasure Island Sailing Center Foundation find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in California. 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 14 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 14, 2026. What this page cannot tell you · view filing