South Dakota · Nonprofit
WEST RIVER FOUNDATION
WEST RIVER FOUNDATION (South Dakota) receives grants from 4 organizations whose IRS filings report $285,790 to it, the largest being CARNEGIE CORPORATION OF NEW YORK ($200,000). 3 of them have funded it in more than one year.
- Revenue FY2025
- $4.8M
- Funders on record
- 4
- Grants received
- $286k
- Net assets
- $7.4M
What West River Foundation does
Mission
To act as a vehicle to improve educational, organizational, and economic resources for schools and communities in south dakota. The foundation is committed to advancing public education, housing opportunities, community services, and economic expansion through software/hardware sales, contracted services, grant programs, housing development, and the leasing of property and equipment for the benefit of any public or non-profit education or community organization in south dakota.
As stated on its FY2025 Form 990.
Programs
Provide administrative services to organizations that promote education and community. Administer several educational programs and establish a small business resource center to provide education and assistance to small businesses.
$2,652,338 spentof which $120,932 as grants$724,679 earned by the program67% of program spendingTo provide space and group homes for educational facilities and persons with special needs.
$221,180 spent$706,807 earned by the program6% of program spendingTechnology sales for educational institutions and persons with special needs
$1,068,694 spent$1,140,308 earned by the program27% of program spending
The 3 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $3,942,212.
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 2018 to 2019, from $6.1M to $6.9M (+14%).
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: 2019 17% · 2020 38% · 2021 30% · 2022 33% · 2023 38% · 2024 35% · 2025 36%. Grants only. Government contracts and fees sit inside program revenue.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 1 of the last 9 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
Ronald Rosenboom
Executive director
As listed on its FY2025 Form 990.
Who funds it, year by year
2017 → 2023: the base narrowed from 2 funders to 1 funder, grant income rose $15k → $100k.
1 of 4 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 14% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
Left out of every figure on this page: $15k from one payer (the payer shares this organization's board, largest West River Foundation for Economic and Community Development). These are real filings, and they are not money WEST RIVER FOUNDATION raised.
From the IRS filings of WEST RIVER FOUNDATION’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
WEST RIVER FOUNDATION leans on a few funders — its largest provides 70% of grant income and the top three 93%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
Largest funder’s share by year: 2017 65% · 2018 100% · 2019 85% · 2020 100% · 2022 83% · 2023 100% — growing more concentrated.
“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
WEST RIVER FOUNDATION draws 90% of its grant income from funders outside South Dakota, across 3 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $40k 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.
Government funding WEST RIVER FOUNDATION receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $8.1M on record.
- Department of Education$7.9M
- Department of Veterans Affairs$155k
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 WEST RIVER FOUNDATION
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 South Dakota
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
97%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Part of a family of 1 related entity
- West River Foundation for Economic and Community Development · exempt
Screen this organization
A dated, signed PDF of the compliance screen for WEST RIVER FOUNDATION: 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 WEST RIVER FOUNDATION?
- WEST RIVER FOUNDATION (South Dakota) receives grants from 4 organizations whose IRS filings report $285,790 to it, the largest being CARNEGIE CORPORATION OF NEW YORK ($200,000). 3 of them have funded it in more than one year.
- How many funders does WEST RIVER FOUNDATION have?
- IRS filings report 4 organizations giving $285,790 in grants to WEST RIVER FOUNDATION, 3 of which have funded it in more than one year.
- Who is the largest funder of WEST RIVER FOUNDATION?
- CARNEGIE CORPORATION OF NEW YORK 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 WEST RIVER FOUNDATION find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in South Dakota. 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 2017–2025), and the filings of 4 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