Illinois · Nonprofit
WESTERN DUPAGE CHAMBER OF COMMERCE
WESTERN DUPAGE CHAMBER OF COMMERCE (Illinois) receives grants from 3 organizations whose IRS filings report $39,640 to it, the largest being Northwestern Memorial HealthCare Group ($30,000). 2 of them have funded it in more than one year.
- Revenue FY2025
- $397k
- Funders on record
- 3
- Grants received
- $40k
- Net assets
- $39k
What Western Dupage Chamber of Commerce does
Mission
To provide assistance and support for local, regional businesses, by planning and managing activities and events, providing training and seminars, acting as an advocate for business with local governing bodies and making referrals
As stated on its FY2025 Form 990.
Programs
Indirect staff costs - mostly staff payroll and related payroll costs. It includes other various program expenses that were not allocated to a specific event
$175,931 spent58% of program spendingRailroad days - the single largest event held in west chicago. The purpose is to bring visitors to the community and showcase the city to residents and visitors alike. The chamber secured participation by several local restaurants and groups, local performers, and local businesses. Gross attendance was estimated at 15,000 people over the 4 days.
$115,493 spent$155,294 earned by the program38% of program spendingGolf outing - the annual golf outing held by the chamber provides an opportunity for businesses to support the ongoing programming while also showcasing their business (as sponsors) and networking with fellow business owners, managers, clients, and staff.
$11,100 spent$20,636 earned by the program4% of program spending
The 3 programs described on its FY2025 Form 990, listed largest first by expense. Program spending in total: $302,524.
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 $67k to $39k (−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.
Government-grant reliance: 2020 7% · 2021 39% · 2024 14%. Grants only. Government contracts and fees sit inside program revenue.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 4 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.
Board chair
Efrain Aguilar
Chairman
As listed on its FY2025 Form 990.
Who funds it, year by year
2022 → 2023: the base held at 1 funder, grant income held at $15k.
From the IRS filings of WESTERN DUPAGE CHAMBER OF COMMERCE’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
WESTERN DUPAGE CHAMBER OF COMMERCE leans on a few funders — its largest provides 76% of grant income and the top three 100%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
91% 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 WESTERN DUPAGE CHAMBER OF COMMERCE.
Largest funder’s share by year: 2022 100% · 2023 100% — broadly stable.
“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
100% of WESTERN DUPAGE CHAMBER OF COMMERCE's grant income comes from Illinois funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. 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 WESTERN DUPAGE CHAMBER OF COMMERCE
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.
Where the money goes
71% of spending goes to programs.
Governance
Screen this organization
A dated, signed PDF of the compliance screen for WESTERN DUPAGE CHAMBER OF COMMERCE: 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 WESTERN DUPAGE CHAMBER OF COMMERCE?
- WESTERN DUPAGE CHAMBER OF COMMERCE (Illinois) receives grants from 3 organizations whose IRS filings report $39,640 to it, the largest being Northwestern Memorial HealthCare Group ($30,000). 2 of them have funded it in more than one year.
- How many funders does WESTERN DUPAGE CHAMBER OF COMMERCE have?
- IRS filings report 3 organizations giving $39,640 in grants to WESTERN DUPAGE CHAMBER OF COMMERCE, 2 of which have funded it in more than one year.
- Who is the largest funder of WESTERN DUPAGE CHAMBER OF COMMERCE?
- Northwestern Memorial HealthCare Group is the largest funder on record, with $30,000 in grants. The full list of funders is on this page.
- How can an organization like WESTERN DUPAGE CHAMBER OF COMMERCE 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.
Play a game about who funds Western Dupage Chamber of Commerce →
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 3 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