California · Nonprofit
SONOMA MOUNTAIN PRESERVATION GROUP INC
SONOMA MOUNTAIN PRESERVATION GROUP INC (California) receives grants from 3 organizations whose IRS filings report $26,650 to it, the largest being SONOMA COUNTY COMMUNITY FOUNDATION ($26,000). 1 of them have funded it in more than one year, and 98% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2025
- $44k
- Funders on record
- 3
- Grants received
- $27k
- Net assets
- $137k
What Sonoma Mountain Preservation Group Inc does
Mission
Advocacy and education for conservation, environmental preservation, and community engagement.
As stated on its FY2025 Form 990-EZ.
Programs
Advocacy on sonoma development center both with regards to wildlife habitat preservation, watershed protection, and general environmental protection from air, water and land pollution; funding of research regarding fire safety and a lawsuit to require an adequate environmental impact report for a development project; attending and speaking at public meetings and writing articles and letters to the editor for local papers.
$14,650 spent28% of program spendingEducation of the public on sonoma mountain preservation through publication of a book on sonoma mountain's value to the community, a school science program, multiple hikes, putting on and making presentations at fairs, and articles and letters to the editor written for local papers.
$15,350 spent29% of program spendingCoordinating and collaborating with other environmental organizations in the area to increase effectiveness of all, decrease overlap and unncessary duplication or working at cross purposes, and supporting their efforts where they increase the likelihood of us achieving our goals.
$14,650 spent28% of program spendingAll other programs
$7,407 spent14% of program spending
The 4 programs described on its FY2025 Form 990-EZ. Program spending in total: $52,057.
Who funds it, year by year
2017 → 2023: the base held at 1 funder, grant income fell $200 → $150.
1 of 3 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 98% 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 SONOMA MOUNTAIN PRESERVATION GROUP 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
SONOMA MOUNTAIN PRESERVATION GROUP INC leans on a few funders — its largest provides 98% 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
98% 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 SONOMA MOUNTAIN PRESERVATION GROUP INC.
Largest funder’s share by year: 2017 100% · 2020 100% · 2022 100% · 2023 100% — broadly stable.
“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
98% of SONOMA MOUNTAIN PRESERVATION GROUP INC's grant income arrives through donor-advised or pass-through sponsors, whose addresses record where the money is held rather than where the donor is. Of the $650 that is directly attributable, 100% of it comes from California funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $26k arriving through sponsors registered in 1 state 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
SONOMA MOUNTAIN PRESERVATION GROUP INC receives grants from 3 organizations whose IRS filings report $27k to it.
this organization peer median middle 50% of peers· 2,195 environment nonprofits under $100k, FY2025
Organizations like SONOMA MOUNTAIN PRESERVATION GROUP 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 California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Public support
69%
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 SONOMA MOUNTAIN PRESERVATION GROUP 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 SONOMA MOUNTAIN PRESERVATION GROUP INC?
- SONOMA MOUNTAIN PRESERVATION GROUP INC (California) receives grants from 3 organizations whose IRS filings report $26,650 to it, the largest being SONOMA COUNTY COMMUNITY FOUNDATION ($26,000). 1 of them have funded it in more than one year, and 98% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does SONOMA MOUNTAIN PRESERVATION GROUP INC have?
- IRS filings report 3 organizations giving $26,650 in grants to SONOMA MOUNTAIN PRESERVATION GROUP INC, 1 of which have funded it in more than one year.
- Who is the largest funder of SONOMA MOUNTAIN PRESERVATION GROUP INC?
- SONOMA COUNTY COMMUNITY FOUNDATION is the largest funder on record, with $26,000 in grants. The full list of funders is on this page.
- How can an organization like SONOMA MOUNTAIN PRESERVATION GROUP INC 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 Sonoma Mountain Preservation Group →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2025–2025), and the filings of 3 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