Wisconsin · Nonprofit
BO WILLIAM HARTWIG FOUNDATION
BO WILLIAM HARTWIG FOUNDATION (Wisconsin) receives grants from 8 organizations whose IRS filings report $50,450 to it, the largest being FOND DU LAC AREA FOUNDATION ($12,500). 3 of them have funded it in more than one year, and 53% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2025
- $98k
- Funders on record
- 8
- Grants received
- $50k
- Net assets
- $141k
What Bo William Hartwig Foundation does
Mission
To provide tools for parents and families that have experienced the death of their child to help them through their grieving and healing process. Among many other things, the organization provides care packages, hosts child loss support groups and helps with funeral expenses for children 18 years and younger in the state of wi.
As stated on its FY2025 Form 990-EZ.
Programs
Provide care packages, host child loss support groups and help with funeral expenses for children 18 years and younger in the state of wi.
$78,046 spent93% of program spendingProvide an efficiently run organization dedicated to helping families cope with the death of a child.
$5,817 spent7% of program spending
The 2 programs described on its FY2025 Form 990-EZ. Program spending in total: $83,863.
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 2024 to 2025, from $127k to $142k (+12%).
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.
93% of BO WILLIAM HARTWIG FOUNDATION’s revenue is contributions — about as donation-reliant as the typical peer (100% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 0 of the last 4 reported years ran a deficit.
Who funds it, year by year
2020 → 2023: the base broadened from 1 funder to 4 funders, grant income rose $192 → $14k.
3 of 8 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 53% 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 BO WILLIAM HARTWIG 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
BO WILLIAM HARTWIG FOUNDATION has a broad base — no single funder exceeds 25% 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
72% 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 BO WILLIAM HARTWIG FOUNDATION.
Largest funder’s share by year: 2020 100% · 2021 51% · 2022 33% · 2023 89% — 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 BO WILLIAM HARTWIG FOUNDATION's funders are still giving 1 year after their first grant; 38% 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 BO WILLIAM HARTWIG FOUNDATION'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 $24k that is directly attributable, 58% of it comes from Wisconsin funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $27k arriving through sponsors registered in 3 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
BO WILLIAM HARTWIG FOUNDATION runs a healthier operating margin than half of the 9,787 human services nonprofits its size.
this organization peer median middle 50% of peers· 9,787 human services nonprofits under $100k, FY2025
Organizations like BO WILLIAM HARTWIG 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 Wisconsin
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Public support
80%
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 BO WILLIAM HARTWIG 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 BO WILLIAM HARTWIG FOUNDATION?
- BO WILLIAM HARTWIG FOUNDATION (Wisconsin) receives grants from 8 organizations whose IRS filings report $50,450 to it, the largest being FOND DU LAC AREA FOUNDATION ($12,500). 3 of them have funded it in more than one year, and 53% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does BO WILLIAM HARTWIG FOUNDATION have?
- IRS filings report 8 organizations giving $50,450 in grants to BO WILLIAM HARTWIG FOUNDATION, 3 of which have funded it in more than one year.
- Who is the largest funder of BO WILLIAM HARTWIG FOUNDATION?
- FOND DU LAC AREA FOUNDATION is the largest funder on record, with $12,500 in grants. The full list of funders is on this page.
- How can an organization like BO WILLIAM HARTWIG FOUNDATION find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Wisconsin. 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 Bo William Hartwig →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2022–2025), and the filings of 8 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