Montana · Nonprofit
BIG BROTHERS BIG SISTERS OF YELLOWSTONE COUNTY
BIG BROTHERS BIG SISTERS OF YELLOWSTONE COUNTY (Montana) receives grants from 10 organizations whose IRS filings report $135,250 to it, the largest being OTTO BREMER TRUST ($40,000). 4 of them have funded it in more than one year.
- Revenue FY2025
- $92k
- Funders on record
- 10
- Grants received
- $135k
- Net assets
- $0
What Big Brothers Big Sisters of Yellowstone County does
Mission
To help children reach their potential through professionally supported one-to-one mentoring relationships
As stated on its FY2025 Form 990.
Program
Provide, create, foster and support mentoring relationships and program activities to competent and caring boys and girls carried out by adult and teen volunteers
$85,681 spent$122,949 earned by the program100% of program spending
The program described on its FY2023 Form 990. Program spending in total: $85,681.
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 2017 to 2018, from $130k to $158k (+22%).
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 26% · 2018 12% · 2019 12% · 2020 12% · 2024 54% · 2025 66%. Grants only. Government contracts and fees sit inside program revenue.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 5 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.
The chief executive listed changed between the FY2018 and FY2019 filings.
Who funds it, year by year
2017 → 2023: the base broadened from 1 funder to 3 funders, grant income rose $4k → $48k.
2 of 10 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 8% 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 BIG BROTHERS BIG SISTERS OF YELLOWSTONE COUNTY’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
BIG BROTHERS BIG SISTERS OF YELLOWSTONE COUNTY leans on a few funders — its largest provides 30% of grant income and the top three 69%; half comes from just 2 funders.
the vertical line marks half of all grant income — 2 funders to its left
Largest funder’s share by year: 2017 100% · 2018 100% · 2019 65% · 2020 41% · 2021 55% · 2022 97% · 2023 83% — 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
50% of BIG BROTHERS BIG SISTERS OF YELLOWSTONE COUNTY's funders are still giving 3 years after their first grant; 40% 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
53% of BIG BROTHERS BIG SISTERS OF YELLOWSTONE COUNTY's grant income comes from Montana funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $10k arriving through sponsors registered in 2 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.
Organizations like BIG BROTHERS BIG SISTERS OF YELLOWSTONE COUNTY
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 Montana
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
54% of spending goes to programs.
Governance
Public support
100%
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 BIG BROTHERS BIG SISTERS OF YELLOWSTONE COUNTY: 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 BIG BROTHERS BIG SISTERS OF YELLOWSTONE COUNTY?
- BIG BROTHERS BIG SISTERS OF YELLOWSTONE COUNTY (Montana) receives grants from 10 organizations whose IRS filings report $135,250 to it, the largest being OTTO BREMER TRUST ($40,000). 4 of them have funded it in more than one year.
- How many funders does BIG BROTHERS BIG SISTERS OF YELLOWSTONE COUNTY have?
- IRS filings report 10 organizations giving $135,250 in grants to BIG BROTHERS BIG SISTERS OF YELLOWSTONE COUNTY, 4 of which have funded it in more than one year.
- Who is the largest funder of BIG BROTHERS BIG SISTERS OF YELLOWSTONE COUNTY?
- OTTO BREMER TRUST is the largest funder on record, with $40,000 in grants. The full list of funders is on this page.
- How can an organization like BIG BROTHERS BIG SISTERS OF YELLOWSTONE COUNTY find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Montana. 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 Big Brothers Big Sisters of Yellowstone County →
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 10 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