Illinois · Nonprofit
FIELD FOUNDATION OF ILLINOIS
FIELD FOUNDATION OF ILLINOIS (Illinois) receives grants from 5 organizations whose IRS filings report $17,000,190 to it, the largest being JOHN D AND CATHERINE T MACARTHUR FOUNDATION ($14,175,000). 4 of them have funded it in more than one year.
- Revenue FY2025
- $15M
- Funders on record
- 5
- Grants received
- $17M
- Net assets
- $49M
The organization over time
Each line starts at 100 in 2020, so what you read is the shape rather than the size: 150 means half as much again as 2020, 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 2020 to 2021, from $47M to $51M (+8%).
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.
Board chair
Joe Aguilar
Board chair
As listed on its FY2025 Form 990-PF.
Who funds it, year by year
2018 → 2023: the base broadened from 2 funders to 3 funders, grant income rose $900k → $4.7M.
1 of 5 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 6% 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 FIELD FOUNDATION OF ILLINOIS’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
FIELD FOUNDATION OF ILLINOIS leans on a few funders — its largest provides 83% of grant income and the top three 95%; 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: 2018 78% · 2020 79% · 2021 74% · 2022 75% · 2023 88% — 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
89% of FIELD FOUNDATION OF ILLINOIS's grant income comes from Illinois funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $1.1M 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.
Organizations like FIELD FOUNDATION OF ILLINOIS
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 Illinois
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Screen this organization
A dated, signed PDF of the compliance screen for FIELD FOUNDATION OF ILLINOIS: 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 FIELD FOUNDATION OF ILLINOIS?
- FIELD FOUNDATION OF ILLINOIS (Illinois) receives grants from 5 organizations whose IRS filings report $17,000,190 to it, the largest being JOHN D AND CATHERINE T MACARTHUR FOUNDATION ($14,175,000). 4 of them have funded it in more than one year.
- How many funders does FIELD FOUNDATION OF ILLINOIS have?
- IRS filings report 5 organizations giving $17,000,190 in grants to FIELD FOUNDATION OF ILLINOIS, 4 of which have funded it in more than one year.
- Who is the largest funder of FIELD FOUNDATION OF ILLINOIS?
- JOHN D AND CATHERINE T MACARTHUR FOUNDATION is the largest funder on record, with $14,175,000 in grants. The full list of funders is on this page.
- How can an organization like FIELD FOUNDATION OF ILLINOIS find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Illinois. 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 2020–2025), and the filings of 5 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