California · Nonprofit
TIBURON VOLUNTEER FIRE DEPARTMENT
TIBURON VOLUNTEER FIRE DEPARTMENT (California) receives grants from 6 organizations whose IRS filings report $10,950 to it, the largest being WINSLOW FAMILY FOUNDATION ($5,000). 2 of them have funded it in more than one year.
- Revenue FY2020
- $5k
- Funders on record
- 6
- Grants received
- $11k
- Net assets
- $93k
What Tiburon Volunteer Fire Department does
Mission
Support tiburon fire department by purchasing equipment for the department and by providing fire education and fire prevention training and expenses.
As stated on its FY2020 Form 990-EZ.
Program
Support tiburon fire department by providing fire education and fire prevention training when needed.
The first program described on its most recent Form 990-EZ.
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.
Balance sheet
Total assets at each year end, in dollars. The largest one-year move in total assets was 2017 to 2018, from $96k to $112k (+17%).
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.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 4 reported years ran a deficit.
Who funds it, year by year
2017 → 2023: the base narrowed from 3 funders to 1 funder, grant income fell $3k → $200.
From the IRS filings of TIBURON VOLUNTEER FIRE DEPARTMENT’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
TIBURON VOLUNTEER FIRE DEPARTMENT leans on a few funders — its largest provides 46% of grant income and the top three 84%; half comes from just 2 funders.
the vertical line marks half of all grant income — 2 funders to its left
Largest funder’s share by year: 2017 73% · 2018 83% · 2019 100% · 2020 100% · 2021 100% · 2022 100% · 2023 100% — 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.
Where its funders are
TIBURON VOLUNTEER FIRE DEPARTMENT draws 77% of its grant income from funders outside California, across 4 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. 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.
Organizations like TIBURON VOLUNTEER FIRE DEPARTMENT
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.
Screen this organization
A dated, signed PDF of the compliance screen for TIBURON VOLUNTEER FIRE DEPARTMENT: 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 TIBURON VOLUNTEER FIRE DEPARTMENT?
- TIBURON VOLUNTEER FIRE DEPARTMENT (California) receives grants from 6 organizations whose IRS filings report $10,950 to it, the largest being WINSLOW FAMILY FOUNDATION ($5,000). 2 of them have funded it in more than one year.
- How many funders does TIBURON VOLUNTEER FIRE DEPARTMENT have?
- IRS filings report 6 organizations giving $10,950 in grants to TIBURON VOLUNTEER FIRE DEPARTMENT, 2 of which have funded it in more than one year.
- Who is the largest funder of TIBURON VOLUNTEER FIRE DEPARTMENT?
- WINSLOW FAMILY FOUNDATION is the largest funder on record, with $5,000 in grants. The full list of funders is on this page.
- How can an organization like TIBURON VOLUNTEER FIRE DEPARTMENT 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.
Play a game about who funds Tiburon Volunteer Fire Department →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2020 (financials across 2017–2020), and the filings of 6 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