Charity Search / CHICAGO SUMMER OPERA INCORPORATED
Arts, Culture & Humanities (A99) 990 on File

CHICAGO SUMMER OPERA INCORPORATED

EIN: 46-2283415 · WILMETTE, IL 60091-1563 · United States · FY 2025 Data
3 out of 5 44 / 100 Based on 2+ years of filings
Financial strength (30%) 50/100
Reliability (20%) 50/100
Effectiveness (25%) 78/100
Impact (25%) No data yet
Financial data: FY 2025 · Scored 9/13/2026
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Financial Overview — FY 2025
$648K
Total Revenue
$605K
Total Expenses
$13K
Net Assets
0
Employees
Revenue Sources
Expense Breakdown
Program Expense Ratio 100.0%
Fundraising Efficiency N/A
Operating Reserve 0.27x
Liability-to-Asset 0.0%
Revenue Diversification 95.1%
Executive Compensation $55K
Compared with Peers
FY 2025
Compared with 8,038 similar organizations (United States, Arts, Culture & Humanities, $100K–$1M in expenses), FY 2025.
This organization Middle half of peers (P25–P75) Peer median
Ratio This org Peer median Position (P10 → P90)
Program expense ratio
Program expenses / total expenses · higher is better
100.0% 81.9%
P10P90
Top quarter
Admin expense ratio
Management and general / total expenses · lower is better
0.0% 13.8%
P10P90
Top quarter
Fundraising expense ratio
Fundraising expenses / total expenses · lower is better
0.0% 0.0%
P10P90
Top quarter
Operating reserve
Months of expenses covered by net assets · higher is better
0.3 mo 9.5 mo
P10P90
Bottom quarter
Liabilities to assets
Total liabilities / total assets · lower is better
0.0% 1.5%
P10P90
Top quarter
Revenue concentration
Share of revenue from the largest source · lower is better
95.1% 77.8%
P10P90
Bottom quarter
Surplus margin
Surplus as a share of revenue
6.6% 2.4%
P10P90
Financial History
Year Revenue Expenses Net Assets Program % Staff
2025 $648K $605K $13K 100.0% 0
2023 $434K $428K $18K 100.0% 0
2022 $382K $379K $8K 100.0% 0
2021 $144K $139K N/A — 1
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Organization Details
EIN
46-2283415
State
IL
City
WILMETTE
ZIP
60091-1563
Classification
A99
Category
Arts, Culture & Humanities
Rating
3★
Coverage
A
Last Updated
Aug 2026
Form 990
On File
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