Charity Search / INTERNATIONAL SOCIETY FOR BEHAVIORAL ECOLOGY
Science & Technology (U50) 990 on File

INTERNATIONAL SOCIETY FOR BEHAVIORAL ECOLOGY

EIN: 43-1692563 · NEW YORK, NY 10019-7016 · United States · FY 2025 Data
3 out of 5 51 / 100 Based on 2+ years of filings
Financial strength (30%) 67/100
Reliability (20%) 55/100
Effectiveness (25%) 78/100
Impact (25%) No data yet
Financial data: FY 2025 · Scored 10/18/2026
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Financial Overview — FY 2025
$546K
Total Revenue
$341K
Total Expenses
$1.8M
Net Assets
0
Employees
Revenue Sources
Expense Breakdown
Program Expense Ratio 98.1%
Fundraising Efficiency N/A
Operating Reserve 64.17x
Liability-to-Asset 0.0%
Revenue Diversification 89.7%
Compared with Peers
FY 2025
Compared with 282 similar organizations (United States, Science & Technology, $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
98.1% 86.0%
P10P90
Top quarter
Admin expense ratio
Management and general / total expenses · lower is better
1.9% 11.8%
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
64.2 mo 11.3 mo
P10P90
Top quarter
Liabilities to assets
Total liabilities / total assets · lower is better
0.0% 0.3%
P10P90
Top quarter
Revenue concentration
Share of revenue from the largest source · lower is better
89.7% 93.2%
P10P90
Above median
Surplus margin
Surplus as a share of revenue
37.6% 1.7%
P10P90
Financial History
Year Revenue Expenses Net Assets Program % Staff
2025 $546K $341K $1.8M 98.1% 0
2023 $239K $21K $1.7M 66.9% 0
2022 $212K $166K $1.3M 91.5% 0
2021 $219K $13K N/A — 0
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Organization Details
EIN
43-1692563
State
NY
City
NEW YORK
ZIP
10019-7016
Classification
U50
Category
Science & Technology
Rating
3★
Coverage
A
Last Updated
Aug 2026
Form 990
On File
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