California · Nonprofit
BOS USA
BOS USA (California) receives grants from 9 organizations whose IRS filings report $275,961 to it, the largest being DAVID P TENBERG CHARITABLE FOUNDATION ($110,000). 3 of them have funded it in more than one year.
- Revenue FY2024
- $224k
- Funders on record
- 9
- Grants received
- $276k
- Net assets
- $101k
What Bos USA does
Mission
Our mission is two-fold. First, we save orangutans in immediate danger through rescue, rehabilitation, and re-introduction to protected rainforests. Second, and equally important, we protect and restore their wild habitat by working alongside the native communities bordering them.
As stated on its FY2024 Form 990.
Program
We save orangutans in immediate danger through rescue, rehabilitation, and re-introduction to protected rainforests. Second, and equally important, we protect and restore their wild habitat by working alongside the native communities bordering them.
$268,077 spentof which $180,726 as grants$223,928 earned by the program100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $268,077.
The organization over time
Each line starts at 100 in 2022, so what you read is the shape rather than the size: 150 means half as much again as 2022, 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 2023 to 2024, from $175k to $102k (−42%).
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.
100% of BOS USA’s revenue is contributions — more donation-reliant than the typical peer (86% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 1 of the last 3 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
Ben Callison
CEO
Board chair
Chris Worwood
Board Chair
As listed on its FY2024 Form 990.
Who funds it, year by year
2021 → 2023: the base broadened from 1 funder to 3 funders, grant income rose $15k → $80k.
4 of 9 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 28% 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 BOS USA’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
BOS USA leans on a few funders — its largest provides 40% of grant income and the top three 80%; half comes from just 2 funders.
the vertical line marks half of all grant income — 2 funders to its left
53% 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 BOS USA.
Largest funder’s share by year: 2021 100% · 2022 59% · 2023 75% — 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.
Where its funders are
BOS USA draws 100% of its grant income from funders outside California, across 3 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $76k arriving through sponsors registered in 4 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
BOS USA's funding base is broadening — from 1 funders to 3 as grant income climbed.
this organization peer median middle 50% of peers· 6,435 animals nonprofits $100k–$1M, FY2024
Organizations like BOS USA
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
90% of spending goes to programs.
Governance
Public support
0%
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 BOS USA: 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 BOS USA?
- BOS USA (California) receives grants from 9 organizations whose IRS filings report $275,961 to it, the largest being DAVID P TENBERG CHARITABLE FOUNDATION ($110,000). 3 of them have funded it in more than one year.
- How many funders does BOS USA have?
- IRS filings report 9 organizations giving $275,961 in grants to BOS USA, 3 of which have funded it in more than one year.
- Who is the largest funder of BOS USA?
- DAVID P TENBERG CHARITABLE FOUNDATION is the largest funder on record, with $110,000 in grants. The full list of funders is on this page.
- How can an organization like BOS USA 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 Bos USA →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2022–2024), and the filings of 9 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