Wisconsin · Nonprofit
ALDO LEOPOLD FOUNDATION INC
ALDO LEOPOLD FOUNDATION INC (Wisconsin) receives grants from 56 organizations whose IRS filings report $3,760,672 to it, the largest being KOHLER TRUST FOR PRESERVATION ($890,000). 35 of them have funded it in more than one year.
- Revenue FY2025
- $4.0M
- Funders on record
- 56
- Grants received
- $3.8M
- Net assets
- $13M
What Aldo Leopold Foundation Inc does
Mission
The aldo leopold foundation's mission is to foster a land ethic through the legacy of aldo leopold.
As stated on its FY2025 Form 990.
Program
Stewardship, education and outreach - includes the following related program activities:stewardship - the foundation owns and manages the original aldo leopold shack and 600 surrounding acres and coordinates the conservation planning and monitoring across the 12,000 acre leopold-pine island important bird area. Land stewardship initiatives demonstrate activities and practices that promote and encourage ecological and ethical use of private and public land and an understanding of the total land community.education - as the primary advocate and interpreter of the leopold legacy, the foundation serves nearly 10,000 visitors on-site each year, in addition to many thousands more through our website, newsletter, and outreach programming. As the primary advocate and interpreter of the leopold legacy, the foundation also serves as the executor of aldo leopold's literary estate, encourages scholarship on aldo leopold, and serves as a clearinghouse for information regarding aldo leopold, his work, and his ideas.aldo leopold legacy center - the foundation's headquarters are located in the leopold legacy center, located less than one mile from the leopold shack. Opened in 2007, the leopold…
$1,909,641 spentof which $100,451 as grants$68,242 earned by the program100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $1,909,641.
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 2024 to 2025, from $12M to $14M (+15%).
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 5% · 2018 9% · 2019 13% · 2020 16% · 2021 26% · 2022 20% · 2023 20% · 2024 9% · 2025 7%. 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 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
Wellington B Huffaker Iv
Executive director & president
Board chair
Jack Salzwedel
Chair
As listed on its FY2025 Form 990.
Who funds it, year by year
2017 → 2023: the base broadened from 11 funders to 26 funders, grant income rose $343k → $580k.
18 of 56 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 38% 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 ALDO LEOPOLD FOUNDATION INC’s funders (the co-funder graph). Top 30 of 56 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
ALDO LEOPOLD FOUNDATION INC has a broad base — no single funder exceeds 24% of grant income, and it takes 4 funders to reach half.
the vertical line marks half of all grant income — 4 funders to its left
64% 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 ALDO LEOPOLD FOUNDATION INC.
Largest funder’s share by year: 2017 45% · 2018 52% · 2019 30% · 2020 26% · 2021 21% · 2022 14% · 2023 17% — 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
53% of ALDO LEOPOLD FOUNDATION INC's funders are still giving 3 years after their first grant; 63% 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
60% of ALDO LEOPOLD FOUNDATION INC's grant income comes from Wisconsin funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $1.4M arriving through sponsors registered in 14 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.
Government funding ALDO LEOPOLD FOUNDATION INC receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $585k on record — $580k federal, $5k state.
- Department of Agriculture$550k
- Department of the Interior$30k
- Emp Training & Background Chks$5k
- Books&Periodicals-Library/Educ$585
- Other Purchased Services$50
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 ALDO LEOPOLD FOUNDATION INC
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.
Where the money goes
71% of spending goes to programs.
Governance
Public support
85%
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 ALDO LEOPOLD FOUNDATION INC: 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 ALDO LEOPOLD FOUNDATION INC?
- ALDO LEOPOLD FOUNDATION INC (Wisconsin) receives grants from 56 organizations whose IRS filings report $3,760,672 to it, the largest being KOHLER TRUST FOR PRESERVATION ($890,000). 35 of them have funded it in more than one year.
- How many funders does ALDO LEOPOLD FOUNDATION INC have?
- IRS filings report 56 organizations giving $3,760,672 in grants to ALDO LEOPOLD FOUNDATION INC, 35 of which have funded it in more than one year.
- Who is the largest funder of ALDO LEOPOLD FOUNDATION INC?
- KOHLER TRUST FOR PRESERVATION is the largest funder on record, with $890,000 in grants. The full list of funders is on this page.
- How can an organization like ALDO LEOPOLD FOUNDATION INC 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.
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 56 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 22, 2026. What this page cannot tell you · view filing