International Union of Toxicology Incorporated
Nonprofit profile at a glance
- EIN
- 222532651
- IRS 990-EZ coverage
- 2021–2025
- Forms available
- Form 990-EZ 2025
- Location
- Reston, VA, USA
- Phone
- 7034383103
- Rating
- 79
- Verdict
- SUPPORTED
- Rating confidence
- Moderate
- Sector
- Medical Disciplines
Reported finances
- Revenue
- $152,339
- Expenses
- $146,667
- Assets
- $261,584
- Liabilities
- $46,772
Source: IRS Form 990-EZ. Selected filing: tax year 2025. Amounts in USD.
Leadership & pay
11 people listed
Executive titles in this filing
- Dr Martin F Wilks (President)
- Dr Felix Carvalho (President-Elect)
- Dr Bette Meek (Vice President)
- Catherine Lamoureux (Executive Director)
People named in this filing
- Dr Martin F Wilks (President)
- Dr Felix Carvalho (President-Elect)
- Dr Flemming R Cassee (Secretary-General)
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
IUTOX's mission is to improve human health through the science and practice of toxicology world-wide. The Organization provides a forum for review of concerns and developments in toxicology; conducts workshops and seminars on an annual basis; and sponsors a Congress on Toxicology on a triennial basis at locations throughout the world.
What it reported doing in 2025
ICT-The International Congress of Toxicology (ICT) is a triennial global academic event offering the opportunity to learn the latest developments in toxicological science and regulation through general scientific sessions and continuing education classes. The ICT 17th was held on October 15-18, 2025 in Beijing China. It was hosted by Chinese Society of Toxicology.
Operating model
- Revenue model
- Mixed. Its operating money came from several sources; no one source provided a clear majority.
- Distribution model
- Hybrid. The nonprofit split its reported program spending across 75% for direct work, and 25% for grants.
The verdict
SUPPORTED - The filed numbers largely add up and a large share of available resources goes toward mission work. Expenses are high relative to revenue and liabilities are high compared with assets.
Rating breakdown
- Financial Efficiency: 62
- Transparency & Controls: 100
- Sustainability: 51
- Growth: 100
Detailed rating inputs
Financial Efficiency
- Mission deployment rate: 62.2%; rating input score 62
- Program expense ratio: 61.6%; rating input score 62
Transparency & Controls
- Consistency checks: 100%; rating input score 100; 52nd percentile among comparable filings
- Major donor itemization: Yes; rating input score 100
Sustainability
- Operating margin: 3.7%; rating input score 41; 41st percentile among comparable filings
- Total-asset coverage ratio: 1.78; rating input score 76; 76th percentile among comparable filings
- Liabilities to assets ratio: 0.18; rating input score 16; 16th percentile among comparable filings
- Officer compensation ratio: 0%; rating input score 63; 63rd percentile among comparable filings
Growth
- Program expense growth: 29.2% per year; rating input score 100; 82nd percentile among comparable filings
- Revenue growth: 11.7% per year; rating input score 100; 69th percentile among comparable filings
- Asset growth: 4.2% per year; rating input score 100; 40th percentile among comparable filings
Details
- Where the money goes: 62.2% of revenue deployed · 61.6% of spending went to programs
- Governance: Filed governance answers
- Accomplishments: 3 filed program accomplishments · $90K in reported program spending
- Leadership: top reported pay $0 · 11 people listed
- Consistency: 9 of 9 current checks pass
- Schedules: 3 filed schedules
- Filing history: 5 filing years from 2021 to 2025
- Contacts: How to reach this organization
- Money network: Resolved incoming and outgoing counterparties from filed money flows.
- Related organizations: Filed and resolved organization relationships.
- 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 — Sustainability: Operating margin scored 41/100.
- High — Sustainability: Liabilities to assets ratio scored 16/100.