Colorado · Nonprofit
Rios to Rivers
Rios to Rivers (Colorado) receives grants from 49 organizations whose IRS filings report $2,415,773 to it, the largest being Wend II Inc ($200,000). 28 of them have funded it in more than one year.
- Revenue FY2025
- $2.2M
- Funders on record
- 49
- Grants received
- $2.4M
- Net assets
- $1.1M
What Rios to Rivers does
Mission
Rios to Rivers inspires the protection of rivers worldwide by investing in underserved and indigenous youth who are intimately connected to their local waters and support them in the development as the next generation of environmental stewards.
As stated on its FY2025 Form 990.
Program
Founded in 2012, Rios to Rivers programs have connected underserved and indigenous students from dozens of endangered river basins in seven countries. The programs have included students and community leaders from 21 indigenous nations. We envision a world in which youth who are intimately connected to their local waters and tribal communities are equipped to become the next generation of passionate leaders for healthy rivers and communities.
$1,282,921 spent$2,213,163 earned by the program100% of program spending
The program described on its FY2025 Form 990. Program spending in total: $1,282,921.
The organization over time
Each line starts at 100 in 2019, so what you read is the shape rather than the size: 150 means half as much again as 2019, 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 2024 to 2025, from $592k to $1.1M (+87%).
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.
99% of Rios to Rivers’s revenue is contributions — more reliant on donations than three-quarters of its peers (88% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 0 of the last 6 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.
Chief executive
Weston Boyles
Executive Director
As listed on its FY2025 Form 990.
Who funds it, year by year
2017 → 2023: the base broadened from 1 funder to 22 funders, grant income rose $500 → $606k.
13 of 49 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 26% 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 Rios to Rivers’s funders (the co-funder graph). Top 30 of 49 funders by total. 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
Rios to Rivers has a broad base — no single funder exceeds 8% of grant income, and it takes 9 funders to reach half.
the vertical line marks half of all grant income — 9 funders to its left
52% 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 Rios to Rivers.
Largest funder’s share by year: 2017 100% · 2018 87% · 2019 30% · 2020 47% · 2021 64% · 2022 22% · 2023 16% — 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
44% of Rios to Rivers's funders are still giving 3 years after their first grant; 57% 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
Rios to Rivers draws 89% of its grant income from funders outside Colorado, across 16 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $630k arriving through sponsors registered in 8 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
Rios to Rivers runs a healthier operating margin than three-quarters of the 1,074 environment nonprofits its size.
this organization peer median middle 50% of peers· 1,074 environment nonprofits $1M–$10M, FY2025
Organizations like Rios to Rivers
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 Colorado
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
91% of spending goes to programs.
Governance
Public support
77%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Screen this organization
A dated, signed PDF of the compliance screen for Rios to Rivers: 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 Rios to Rivers?
- Rios to Rivers (Colorado) receives grants from 49 organizations whose IRS filings report $2,415,773 to it, the largest being Wend II Inc ($200,000). 28 of them have funded it in more than one year.
- How many funders does Rios to Rivers have?
- IRS filings report 49 organizations giving $2,415,773 in grants to Rios to Rivers, 28 of which have funded it in more than one year.
- Who is the largest funder of Rios to Rivers?
- Wend II Inc is the largest funder on record, with $200,000 in grants. The full list of funders is on this page.
- How can an organization like Rios to Rivers find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Colorado. 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 Rios to Rivers →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2019–2025), and the filings of 49 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