International Society of Photosynthesis Research
Nonprofit profile at a glance
- EIN
- 260804449
- IRS 990-EZ coverage
- 2010–2025
- Forms available
- Form 990-EZ 2025, Form 990-T 2025
- Location
- Stillwater, OK, USA
- Phone
- 4057447445
- Rating
- 67
- Verdict
- SUPPORTED
- Rating confidence
- Moderate
- Sector
- Biological & Life Sciences
Reported finances
- Revenue
- $18,476
- Expenses
- $11,070
- Assets
- $217,250
Source: IRS Form 990-EZ. Selected filing: tax year 2025. Amounts in USD.
Leadership & pay
15 people listed
Executive titles in this filing
- ROBERTA CROCE (President)
People named in this filing
- ROBERT BURNAP (Treasurer)
- JULIAN EATON-RYE (Secretary)
- NICHOLAS COX (OCEANIA BOARD)
Selected names, not a complete roster or a statement of current roles. Open leadership details for the complete filed list.
Source: IRS Form 990-EZ. Selected filing: tax year 2025. Names and roles reflect this filing, not necessarily current officeholders.
Overview
Mission
The tax-exempt purposes of the International Society of Photosynthesis Research are to; 1) encourage the growth and to promote the development of photosynthesis as a pure and applied science, 2) to facilitate publication of research in the science of photosynthesis, 3) to promote international cooperation in photosynthesis research and education, and 4) to sponsor a triennial International Congress on Photosynthesis.
What it reported doing in 2025
Congress and meeting expenses with members to promote exchange of scientific information.
Operating model
- Revenue model
- Cannot be determined from the filing. The filing does not provide enough consistent revenue detail to tell how this nonprofit funds its work.
- Distribution model
- Grant intermediary. The nonprofit sent 73% of its reported program spending out as grants.
The verdict
SUPPORTED - The filed numbers largely add up and revenue comfortably covers expenses. A relatively small share of available resources goes toward mission work and program spending has declined or grown slowly.
Rating breakdown
- Financial Efficiency: 59
- Transparency & Controls: 82
- Sustainability: 75
- Growth: 20
Detailed rating inputs
Financial Efficiency
- Mission deployment rate: 47%; rating input score 47
- Program expense ratio: 78.5%; rating input score 79
Transparency & Controls
- Consistency checks: 100%; rating input score 100; 51st percentile among comparable filings
- Major donor itemization: Limited
Sustainability
- Operating margin: 40.1%; rating input score 86; 86th percentile among comparable filings
- Total-asset coverage ratio: 19.63; rating input score 96; 96th percentile among comparable filings
- Liabilities to assets ratio: Limited
- Officer compensation ratio: 0%; rating input score 56; 56th percentile among comparable filings
Growth
- Program expense growth: -4.1% per year; rating input score 0; 37th percentile among comparable filings
- Revenue growth: -5.2% per year; rating input score 0; 33rd percentile among comparable filings
- Asset growth: 5% per year; rating input score 100; 56th percentile among comparable filings
Details
- Where the money goes: 47% of revenue deployed · 78.5% of spending went to programs
- Governance: Filed governance answers
- Accomplishments: 2 filed program accomplishments · $9K in reported program spending
- Leadership: top reported pay $0 · 15 people listed
- Consistency: 7 of 7 current checks pass
- Schedules: 2 filed schedules
- Filing history: 15 filing years from 2010 to 2025
- Contacts: How to reach this organization
- Grant readiness: Federal tax and exclusion status, award history, and grant-maker relationships.
- People: Everyone the filings name, and which of them the filings identify by more than a name.
Key Signals
Signals prioritize questions for review. They are not findings of misconduct.
- Moderate — Financial Efficiency: Mission deployment rate scored 47/100.
- High — Growth: Program expense growth scored 0/100.
- High — Growth: Revenue growth scored 0/100.
- Review — Sustainability: Officer compensation ratio scored 56/100.