Charity Search / INTERNATIONAL EOSINOPHIL SOCIETY INC
Diseases & Disorders (G43) 990 on File

INTERNATIONAL EOSINOPHIL SOCIETY INC

EIN: 27-2696878 · MILWAUKEE, WI 53202-3800 · United States · FY 2024 Data
3 out of 5 43 / 100 Based on 2+ years of filings
Financial strength (30%) 62/100
Reliability (20%) 50/100
Effectiveness (25%) 58/100
Impact (25%) No data yet
Financial data: FY 2024 · Scored 9/13/2026
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Financial Overview — FY 2024
$167K
Total Revenue
$137K
Total Expenses
$710K
Net Assets
0
Employees
Revenue Sources
Expense Breakdown
Program Expense Ratio 60.3%
Fundraising Efficiency N/A
Operating Reserve 62.22x
Liability-to-Asset 2.2%
Revenue Diversification 78.6%
Compared with Peers
FY 2024
Compared with 1,541 similar organizations (United States, Diseases & Disorders, $100K–$1M in expenses), FY 2024.
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
60.3% 83.1%
P10P90
Bottom quarter
Admin expense ratio
Management and general / total expenses · lower is better
36.5% 10.9%
P10P90
Bottom quarter
Fundraising expense ratio
Fundraising expenses / total expenses · lower is better
3.2% 0.3%
P10P90
Below median
Operating reserve
Months of expenses covered by net assets · higher is better
62.2 mo 12.0 mo
P10P90
Top quarter
Liabilities to assets
Total liabilities / total assets · lower is better
2.2% 0.7%
P10P90
Below median
Revenue concentration
Share of revenue from the largest source · lower is better
78.6% 93.9%
P10P90
Above median
Revenue growth
Year over year revenue growth
-68.8% 7.6%
P10P90
Expense growth
Year over year expense growth
-53.3% 9.1%
P10P90
Surplus margin
Surplus as a share of revenue
17.9% 1.8%
P10P90
Financial History
Year Revenue Expenses Net Assets Program % Staff
2024 $167K $137K $710K 60.3% 0
2023 $535K $293K $680K 82.3% 0
2022 $168K $46K $439K 2.7% 0
2021 $119K $38K N/A — 0
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Organization Details
EIN
27-2696878
State
WI
City
MILWAUKEE
ZIP
53202-3800
Classification
G43
Category
Diseases & Disorders
Rating
3★
Coverage
A
Last Updated
Aug 2026
Form 990
On File
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