California · Nonprofit
Tahoe Area Mountain Biking Association
Tahoe Area Mountain Biking Association (California) receives grants from 27 organizations whose IRS filings report $1,618,098 to it, the largest being TAHOE FUND ($595,386). 14 of them have funded it in more than one year, and 51% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2025
- $965k
- Funders on record
- 27
- Grants received
- $1.6M
- Net assets
- $1.1M
What Tahoe Area Mountain Biking Association does
Mission
TAMBA is dedicated to the stewardship of sustainable, multiple-use trails and to preserving access for mountain bikers through advocacy, education and promotion of responsible trail use. TAMBA is primarily a trail building organization.TAMBA is organized for the following purposes:1. To build and maintain multi-use trails in the Lake Tahoe area.2. Promote the appreciation of and care for all public lands.3. Educate concerning appropriate mountain biking access to all public lands.4. Act as an educating communication link between and among public land users and public land managers.5. Maintain access to specific public trails in the Lake Tahoe and Truckee area.6. Work with other user groups in resolving conflicts in order to work cooperatively to promote appreciation of and care for public lands.7. Work with other local, state and national biking organizations to promote the interests of mountain bikers.8. Promote a positive image of mountain bikers with officials and the general public
As stated on its FY2025 Form 990.
Program
Building and maintaining mountain bike trails and parks in Lake Tahoe and Truckee area
$716,952 spent100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $716,952.
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 $327k to $789k (+142%).
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 10% · 2019 37% · 2021 7% · 2022 15% · 2023 18% · 2024 9% · 2025 2%. Grants only. Government contracts and fees sit inside program revenue.
85% of Tahoe Area Mountain Biking Association’s revenue is contributions — more reliant on donations than three-quarters of its peers (18% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 1 of the last 7 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.
Board chair
Jessica Smith
Board Chair
As listed on its FY2025 Form 990.
Who funds it, year by year
2018 → 2023: the base broadened from 1 funder to 15 funders, grant income rose $1k → $293k.
12 of 27 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 51% 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 Tahoe Area Mountain Biking Association’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
Tahoe Area Mountain Biking Association has a broad base — no single funder exceeds 37% of grant income, and it takes 3 funders to reach half.
the vertical line marks half of all grant income — 3 funders to its left
95% 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 Tahoe Area Mountain Biking Association.
Largest funder’s share by year: 2018 100% · 2019 100% · 2020 63% · 2021 43% · 2022 30% · 2023 48% — 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.
How long its funders stay
75% of Tahoe Area Mountain Biking Association's funders are still giving 3 years after their first grant; 52% 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
51% of Tahoe Area Mountain Biking Association'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 $799k that is directly attributable, 86% of it comes from California funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $819k arriving through sponsors registered in 10 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
Tahoe Area Mountain Biking Association has grown faster than three-quarters of the 11,010 recreation & sports nonprofits its size.
this organization peer median middle 50% of peers· 11,010 recreation & sports nonprofits $100k–$1M, FY2025
Government funding Tahoe Area Mountain Biking Association receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $276k on record.
- Department of Agriculture$276k
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 Tahoe Area Mountain Biking Association
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
77% of spending goes to programs.
Governance
Public support
99%
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 Tahoe Area Mountain Biking Association: 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 Tahoe Area Mountain Biking Association?
- Tahoe Area Mountain Biking Association (California) receives grants from 27 organizations whose IRS filings report $1,618,098 to it, the largest being TAHOE FUND ($595,386). 14 of them have funded it in more than one year, and 51% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does Tahoe Area Mountain Biking Association have?
- IRS filings report 27 organizations giving $1,618,098 in grants to Tahoe Area Mountain Biking Association, 14 of which have funded it in more than one year.
- Who is the largest funder of Tahoe Area Mountain Biking Association?
- TAHOE FUND is the largest funder on record, with $595,386 in grants. The full list of funders is on this page.
- How can an organization like Tahoe Area Mountain Biking Association 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 Tahoe Area Mountain Biking Association →
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 27 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 22, 2026. What this page cannot tell you · view filing