Charity Search / INTERNATIONAL SOCIETY OF PHOTOSYNTHESIS RESEARCH
Science & Technology (U50) 990 on File

INTERNATIONAL SOCIETY OF PHOTOSYNTHESIS RESEARCH

EIN: 26-0804449 · STILLWATER, OK 74078-0001 · United States · FY 2025 Data
3 out of 5 55 / 100 Based on 2+ years of filings
Financial strength (30%) 100/100
Reliability (20%) 50/100
Effectiveness (25%) 61/100
Impact (25%) No data yet
Financial data: FY 2025 · Scored 9/13/2026
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CharityAI™ Score
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Financial Overview — FY 2025
$18K
Total Revenue
$11K
Total Expenses
$217K
Net Assets
N/A
Employees
Revenue Sources
Expense Breakdown
Program Expense Ratio 78.5%
Fundraising Efficiency N/A
Operating Reserve 235.50x
Liability-to-Asset N/A
Revenue Diversification 16.9%
Compared with Peers
FY 2025
Compared with 323 similar organizations (United States, Science & Technology, under $100K 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
78.5% 74.5%
P10P90
Above median
Operating reserve
Months of expenses covered by net assets · higher is better
235.5 mo 24.9 mo
P10P90
Top quarter
Revenue concentration
Share of revenue from the largest source · lower is better
16.9% 98.0%
P10P90
Top quarter
Surplus margin
Surplus as a share of revenue
40.1% 13.2%
P10P90
Financial History
Year Revenue Expenses Net Assets Program % Staff
2025 $18K $11K $217K 78.5%
2023 $12K $28K $172K 88.0%
2022 $24K $35K $188K 56.8%
2021 $17K $4K N/A 1
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Organization Details
EIN
26-0804449
State
OK
City
STILLWATER
ZIP
74078-0001
Classification
U50
Category
Science & Technology
Rating
3★
Coverage
A
Last Updated
Aug 2026
Form 990
On File
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