International Union Of Geological Sciences
Reston, VA
Cause (Daanaa category based on the IRS NTEE code): Science & Technology
Mission as stated by the organization
The IUGS promotes the development of the geological sciences through the support of broad-based scientific studies and commissions, the results of which advance geological education, public awareness of geology, the responsible use of natural resources and preservation of the natural environment. It also sponsors scientific conferences on various aspects of the geosciences.
From the nonprofit's IRS Form 990 filing
Latest IRS filing year on record: 2025 (source: IRS).
EIN 52-1231783 (IRS record).
Website on the organization’s public record: www.iugs.org
Public sources: IRS Tax Exempt Organization data; ProPublica Nonprofit Explorer (independent sites, not affiliated with Daanaa). Daanaa record.
IRS data loaded July 2026. Status may have changed since then; check the IRS link for current status.
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