Nevada · Nonprofit
FRIENDS OF SUTRO TUNNEL CHARITY
FRIENDS OF SUTRO TUNNEL CHARITY (Nevada) receives grants from 2 organizations whose IRS filings report $15,000 to it, the largest being SMALL WORLD FOUNDATION (PREVIOUSLY KNOWN AS BRIGHT STAR FOUNDATION) ($10,000). 0 of them have funded it in more than one year.
- Revenue FY2025
- $478k
- Funders on record
- 2
- Grants received
- $15k
- Net assets
- $688k
What Friends of Sutro Tunnel Charity does
Program
Expenditures for direct charitable activities of the foundation include preserving and restoring the mining history of sutro tunnel and its site.
$76,887 spent
The program described on its FY2025 Form 990-PF.
The organization over time
Each line starts at 100 in 2021, so what you read is the shape rather than the size: 150 means half as much again as 2021, 50 means half. The number beside each label in the key is where it ended.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2024 to 2025, from $856k to $1.2M (+38%).
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
Grant support over time, funder by funder — shade shows the grant size each year.
From the IRS filings of FRIENDS OF SUTRO TUNNEL CHARITY’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
FRIENDS OF SUTRO TUNNEL CHARITY leans on a few funders — its largest provides 67% of grant income and the top three 100%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
“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
FRIENDS OF SUTRO TUNNEL CHARITY draws 67% of its grant income from funders outside Nevada, across 2 states in all.
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 FRIENDS OF SUTRO TUNNEL CHARITY
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 Nevada
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 FRIENDS OF SUTRO TUNNEL CHARITY: 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 FRIENDS OF SUTRO TUNNEL CHARITY?
- FRIENDS OF SUTRO TUNNEL CHARITY (Nevada) receives grants from 2 organizations whose IRS filings report $15,000 to it, the largest being SMALL WORLD FOUNDATION (PREVIOUSLY KNOWN AS BRIGHT STAR FOUNDATION) ($10,000). 0 of them have funded it in more than one year.
- How many funders does FRIENDS OF SUTRO TUNNEL CHARITY have?
- IRS filings report 2 organizations giving $15,000 in grants to FRIENDS OF SUTRO TUNNEL CHARITY.
- Who is the largest funder of FRIENDS OF SUTRO TUNNEL CHARITY?
- SMALL WORLD FOUNDATION (PREVIOUSLY KNOWN AS BRIGHT STAR FOUNDATION) is the largest funder on record, with $10,000 in grants. The full list of funders is on this page.
- How can an organization like FRIENDS OF SUTRO TUNNEL CHARITY find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Nevada. 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 2021–2025), and the filings of 2 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