INTERNATIONAL UNION OF GEOLOGICAL SCIENCES

EIN: 521231783 501(c)(3) Science & Technology

Reston, VA

Total Revenue
$630,031
Total Expenses
$725,548
Total Assets
$1,274,025
Net Assets
$1,274,025
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Financial Vulnerability Assessment (Tuckman-Chang)

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Financial Trends

Organization Details

Formation Year
1961
Legal Domicile
VA
Principal Officer
Hassina Mouri
Phone
3107100701
Tax Period
2025-01-01 to 2025-12-31

INTERNATIONAL UNION OF GEOLOGICAL SCIENCES, founded in 1961, is a small nonprofit in the Science & Technology sector that reported $630K in total revenue in fiscal year 2025. Revenue grew 17% year-over-year, indicating healthy expansion. Expenses of $726K exceeded revenue, resulting in a 15% operating deficit.

Mission

IUGS promotes development of the geosciences through the support of broad-based scientific studies, technical comissinos and scientific conferences, to apply the results of these and other studies to preserve the natural environment, to strengthen public awareness of geology and advance geological education in the widest sense.

Program Service Accomplishments

Program 1
Expenses: $250,240 Revenue: $0

Co-financing of the "International Geoscience Programme (IGCP)" in cooperation with UNESCO: a broad international cooperation program in the earth sciences and memberships and contribution to the...

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Co-financing of the "International Geoscience Programme (IGCP)" in cooperation with UNESCO: a broad international cooperation program in the earth sciences and memberships and contribution to the activities of the International Science Council.

Program 2
Expenses: $270,907 Revenue: $0

Financing of activities of international commissions, task groups and initiatives tackling issues of global significance in the geosciences. Hosting of IUGS-sponsored scientific events and operations...

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Financing of activities of international commissions, task groups and initiatives tackling issues of global significance in the geosciences. Hosting of IUGS-sponsored scientific events and operations of secretariat/account support/executive committee

Program 3
Expenses: $30,000 Revenue: $0

Publication and dissemination of the IUGS journal "EPISODES", a high-impact publication at the service of the global geoscience community, contributions to the One Geology mapping program and...

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Publication and dissemination of the IUGS journal "EPISODES", a high-impact publication at the service of the global geoscience community, contributions to the One Geology mapping program and presentation of IUGS awards

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Trantor Score

Financial Health Score (300–850) · Liquidity · Solvency · Sustainability · Efficiency

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Liquidity (40%) • Solvency (30%) • Sustainability (20%) • Efficiency (10%)

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Financial Overview (2025)

Revenue Breakdown

Contributions & Grants $626,786
Program Service Revenue $0
Investment Income $119
Other Revenue $3,126
TOTAL REVENUE $630,031

Expense Breakdown

Grants Paid $491,168
Salaries & Benefits $0
Fundraising Expenses $0
Program Expenses $725,548
Other Expenses $234,380
TOTAL EXPENSES $725,548

Year-over-Year Comparison

2025 2024 Change
Revenue $630,031 $540,595 +0.2%
Expenses $725,548 $792,084 -0.1%
Net Income $-95,517 $-251,489 -0.6%
Key Indicators
Grants to Organizations Grants to Individuals Lobbying Political Activity Foreign Activities Donor Advised Fund Schedule B Required
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Governance

Voting Members
9
Independent Members
9
Employees
N/A
Volunteers
200

Governance Policies

Conflict of Interest Policy
Whistleblower Policy
Document Retention Policy

Special Practices & Reported Activities

Operated a School
Operated a Hospital
Provided First Class Travel
Reported Conflict of Interest
Reported Asset Diversion
Excess Benefit Transaction
Made Political Expenditures
Engaged in Lobbying
Operated Donor Advised Fund
Maintained Art Collections
Filed Form 720

Compensation of Officers, Directors & Key Employees

Total Officers
3
$0
Total Directors
0
$0
Key Employees
0
$0
Highest Compensated
0
reported
Name Title Hours/Week Role Reportable Comp Other Comp Total
Professor Hassina Mouri President 20
Officer
$0 $0 $0
Professor David Cohen Treasurer 15
Officer
$0 $0 $0
Dr Ludwig Stroink Secretary-General 20
Officer
$0 $0 $0
Note: Compensation data is self-reported by the organization on their Form 990. "Reportable Comp" includes salary, bonuses, and other reportable compensation from the organization and related organizations. "Other Comp" includes benefits, deferred compensation, and non-taxable benefits.

Historical Data

Year Revenue Expenses Assets Net Income
2025 $630,031 $725,548 $1,274,025 $-95,517
2024 $540,595 $792,084 $1,369,542 $-251,489
2023 $710,193 $745,070 $1,621,012 $-34,877
2022 $533,616 $643,013 $1,655,889 $-109,397
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