International Union of Geological Sciences

Nonprofit profile at a glance

EIN
521231783
IRS 990 coverage
2022–2025
Forms available
Form 990 2025
Location
Reston, VA, USA
Phone
3107100701
Rating
78
Verdict
SUPPORTED
Rating confidence
Moderate
Sector
Geology

Official website

Reported finances

Revenue
$630,031
Expenses
$725,548
Assets
$1,274,025
Liabilities
$0

Source: IRS Form 990. Selected filing: tax year 2025. Amounts in USD.

Leadership & pay

3 people listed

Executive titles in this filing

  • Professor Hassina Mouri (President)

People named in this filing

  • Professor Hassina Mouri (President)
  • Professor David Cohen (Treasurer)
  • Dr Ludwig Stroink (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. Selected filing: tax year 2025. Names and roles reflect this filing, not necessarily current officeholders.

Overview

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.

What it reported doing in 2025

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

Operating model

Revenue model
Membership-supported. 71% of the money available for current operations came from membership dues.
Distribution model
Grant intermediary. The nonprofit sent 68% of its reported program spending out as grants.

The verdict

SUPPORTED - A large share of available resources goes toward mission work and the filed numbers largely add up. Some filing-based governance responses are negative or unanswered and expenses are high relative to revenue.

Rating breakdown

  • Financial Efficiency: 89
  • Transparency & Controls: 72
  • Accountability: 76
  • Sustainability: 41
  • Growth: 80

Detailed rating inputs

Financial Efficiency

  • Mission deployment rate: 100%; rating input score 100
  • Program expense ratio: 100%; rating input score 100
  • Fundraising efficiency: Limited

Transparency & Controls

  • Consistency checks: 80%; rating input score 80; 1st percentile among comparable filings
  • Pay-setting controls: Limited
  • Foreign activity oversight: Limited
  • Grant itemization coverage: Limited
  • Major donor itemization: Limited
  • Related-party transparency: Limited

Accountability

  • Independent voting board: 100%; rating input score 100; 64th percentile among comparable filings
  • Governance controls: 3 of 7 controls in place; rating input score 43
    • Conflict-of-interest policy: Fail
    • Whistleblower policy: Fail
    • Document-retention policy: Fail
    • CEO compensation review process: NotApplicable
    • Other executive compensation review process: NotApplicable
    • Form 990 shared with the board: Fail
    • Board meeting minutes documented: Pass
    • Audit committee oversight: Pass
    • Independent financial-statement audit: Pass

Sustainability

  • Operating margin: -15.2%; rating input score 9; 9th percentile among comparable filings
  • Total-asset coverage ratio: 1.76; rating input score 60; 60th percentile among comparable filings
  • Liabilities to assets ratio: 0; rating input score 88; 88th percentile among comparable filings
  • Officer compensation ratio: 0%; rating input score 78; 78th percentile among comparable filings

Growth

  • Program expense growth: 9.9% per year; rating input score 100; 57th percentile among comparable filings
  • Revenue growth: 2% per year; rating input score 100; 19th percentile among comparable filings
  • Asset growth: -9.4% per year; rating input score 0; 3rd percentile among comparable filings

Details

  • Where the money goes: 100% of revenue deployed · 100% of spending went to programs
  • Governance: 9 of 9 board members independent · 3 of 7 filing controls reported
  • Programs: 4 filed program accomplishments · $726K in reported program spending
  • Leadership: top reported pay $0 · 3 people listed
  • Consistency: 39 of 41 current checks pass · 2 findings to review
  • Schedules: 2 filed schedules
  • Filing history: 4 filing years from 2022 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 — Accountability: Governance controls: 4 of 7 not reported.
  • High — Sustainability: Operating margin scored 9/100.
  • High — Growth: Asset growth scored 0/100.
  • Moderate — Transparency & Controls: Schedule A contributions reconciliation did not reconcile in the filed values.
  • Review — Transparency & Controls: Foreign grants require schedule f did not reconcile in the filed values.