California · Nonprofit
INTERTRIBAL SINKYONE WILDERNESS COUNCIL
INTERTRIBAL SINKYONE WILDERNESS COUNCIL (California) receives grants from 5 organizations whose IRS filings report $980,425 to it, the largest being LANNAN FOUNDATION ($377,270). 5 of them have funded it in more than one year.
- Revenue FY2024
- $259k
- Funders on record
- 5
- Grants received
- $980k
- Net assets
- $6.1M
What Intertribal Sinkyone Wilderness Council does
Mission
To promote and preserve the traditional practice of native american religious and cultural activities within the sinkyone wilderness area in a way which is in conformance with native american traditional ecological systems and uses, to teach native americans traditional way of life, to preserve this area for traditional hunting, fishing and gathering.
As stated on its FY2017 Form 990.
Programs
Advance traditional land stewardship and education: hold 14 board meetings; develop multi-year funding; develop new executive director position; meet with tribal leaders in utah for land protection summit; make presentations on environmental topics; update website content.
$89,114 spentDevelop conceptual outline for tribal guardians program: outline project goals and conduct initial research for the development of an intertribal guardians program, to be further researched and developed by the council in 2025 and beyond.
$75,000 spentDevelop and engage in land protection initiative: develop cultural land protection initiative for 4,500 acres; facilitate in multi-tribe engagement convened and hosted by the council; develop initiative documents; conduct outreach and engagement; conduct 8 planning meetings and 4 land visits.
$51,275 spentProtect culturally important ecosystems and species: hold and steward 4,531 acres devoted to permanent protection of native species, ecosystems and biocultural values. Initiate new land return and protection initiative on 250 acres and conduct initial land visit.
$40,000 spent
The 4 programs described on its FY2024 Form 990-PF.
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 and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2020 to 2021, from $2.1M to $6.2M (+192%).
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
2020 → 2023: the base broadened from 1 funder to 3 funders, grant income rose $10k → $176k.
From the IRS filings of INTERTRIBAL SINKYONE WILDERNESS COUNCIL’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
INTERTRIBAL SINKYONE WILDERNESS COUNCIL leans on a few funders — its largest provides 38% of grant income and the top three 87%; half comes from just 2 funders.
the vertical line marks half of all grant income — 2 funders to its left
33% 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 INTERTRIBAL SINKYONE WILDERNESS COUNCIL.
Largest funder’s share by year: 2020 100% · 2021 91% · 2022 79% · 2023 57% — diversifying over time.
“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
61% of INTERTRIBAL SINKYONE WILDERNESS COUNCIL's grant income comes from California funders.
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 INTERTRIBAL SINKYONE WILDERNESS COUNCIL
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 INTERTRIBAL SINKYONE WILDERNESS COUNCIL: 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 INTERTRIBAL SINKYONE WILDERNESS COUNCIL?
- INTERTRIBAL SINKYONE WILDERNESS COUNCIL (California) receives grants from 5 organizations whose IRS filings report $980,425 to it, the largest being LANNAN FOUNDATION ($377,270). 5 of them have funded it in more than one year.
- How many funders does INTERTRIBAL SINKYONE WILDERNESS COUNCIL have?
- IRS filings report 5 organizations giving $980,425 in grants to INTERTRIBAL SINKYONE WILDERNESS COUNCIL, 5 of which have funded it in more than one year.
- Who is the largest funder of INTERTRIBAL SINKYONE WILDERNESS COUNCIL?
- LANNAN FOUNDATION is the largest funder on record, with $377,270 in grants. The full list of funders is on this page.
- How can an organization like INTERTRIBAL SINKYONE WILDERNESS COUNCIL 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 Intertribal Sinkyone Wilderness Council →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2017–2024), and the filings of 5 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