Geological Society of America Foundation
The mission of the geological society of america foundation is to develop and provide funds to support the goals and programs of the geological society of america. These funds are distributed according to the needs of the society and in a manner consistent with the desire of the donors.
Key facts about Geological Society of America Foundation
In short: Geological Society of America Foundation gave $1.9M across 1 grant in 2025 (avg $1.9M), mostly in Colorado. Source: 2025 IRS Form 990.
- EIN
- 74-2156871
- Latest 990 filing
- Form 990, 2025
- Annual giving (2025)
- $1,854,616
- Grants made (2025)
- 1
- Average grant
- $1,854,616
- Median grant
- $1,854,616
- Total assets
- $39,578,274
- Primary geography
- Colorado (100% of itemized 2025 grant dollars)
Data from IRS Form 990, 2025; updated September 2026.
Financial Overview
From 2025 IRS Form 990 · View filing
Total Assets
$39.6M
+7.8% YoY
Annual Giving
$1.9M
+40.5% YoY
Grant Count
1
+0.0% YoY
Avg Grant Size
$1.9M
+40.5% YoY
How Geological Society of America Foundation gives
- Giving grew 74% from 2022 to 2025. Method
From the foundation's IRS Form 990 filings. Methodology.
About Geological Society of America Foundation
Based on IRS filings
Geological Society of America Foundation is a nonprofit organization focused on Science & Technology, based in Boulder, CO. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $39.6M in total assets. In 2025, it awarded 1 grant totaling $1.9M. Net investment income was $2.1M.
Focus Areas
Open Grants
20 open opportunities from Geological Society of America Foundation
Antoinette Lierman Medlin Scholarship (Energy Geology Division) Grant
Geological Society of America Foundation
Amount
US $1,500 - US $2,000
Deadline
Rolling / Open
Archaeological Geology Division: Claude C. Albritton, Jr. Award Grant
Geological Society of America Foundation
Amount
Up to US $650
Deadline
Rolling / Open
Environmental & Engineering Geology Division (EEGD): Roy J. Shlemon Scholarship Award Grant
Geological Society of America Foundation
Amount
Varies
Deadline
Rolling / Open
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of all 1 itemized 2025 grant dollars.
States
Cities
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 1 recipients in 2025
Grant Size Distribution
5 grants across all recorded years
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| GEOLOGICAL SOCIETY OF AMERICA INC Boulder, CO | TO ASSIST IN FUNDING RESEARCH IN THE FIELD OF GEOLOGY AND DISSEMINATION OF INFORMATION. | $1,854,616 |
Financial History
Multi-year comparison from IRS filings
| Metric | 2025 | 2024 | 2023 |
|---|---|---|---|
| Total Assets | $39,578,274 | $36,717,351 | $31,894,642 |
| Revenue | $3,360,582 | $4,847,881 | $3,229,540 |
| Expenses | $2,775,569 | $2,227,526 | $2,273,689 |
| Qualifying Distributions | — | — | — |
| Net Investment Income | $2,141,794 | $1,484,074 | $959,427 |
| Distributable Amount | — | — | — |
Data update history
When this profile's IRS filing data changed on Grantable
- Added Form 990 for fiscal year 2025 (received by the IRS May 12, 2026)
- IRS filings on file for fiscal years 2020–2024
Leadership & Key People
Officers and directors from IRS filings
Geological Society of America Foundation is led by Sean O'Brien, Executive Director on the 2025 filing; 1 of 12 officers listed in 2025 is compensated.
Officers on the 2025 filing
Sean O'Brien
Executive Director
New on the 2025 filing
40 hrs/week
$106K (2025)
Lydia Fox
Chair
Trustee → Chair, 2023
On filings since 2021
20 hrs/week
No compensation reported
Farouk El-Baz
Trustee
On filings since 2021
1 hr/week
No compensation reported
Rebecca Caldwell
Trustee
On filings since 2022
1 hr/week
No compensation reported
George Davis
Trustee
On filings since 2023
1 hr/week
No compensation reported
Katy Sementelli
Trustee
On filings since 2023
1 hr/week
No compensation reported
Terry Briggs
Trustee
On filings since 2023
1 hr/week
No compensation reported
Braimah Apambire
Trustee
New on the 2025 filing
1 hr/week
No compensation reported
Lauren Heerschap
Trustee
New on the 2025 filing
1 hr/week
No compensation reported
Neila Dunbar
Trustee
New on the 2025 filing
1 hr/week
No compensation reported
Stephen G. Wells
Vice Chair
Trustee → Vice Chair, 2023
On filings since 2020
1 hr/week
No compensation reported
Ben Van Der Pluijm
Treasurer
New on the 2025 filing
1 hr/week
No compensation reported
Former officers (18)
- Former: Rex Buchanan (2020–2024) — Treasurer
- Former: Alberto Gutierrez (2022–2024) — Trustee
- Former: Rodney Ewing (2022–2024) — Trustee
- Former: Neil Fishman (2024) — Interim Executive Director
- Former: Debora Marcinkowski (2020–2023) — Executive Director
- Former: Darrel S. Cowan (2020–2022) — Trustee
- Former: Jeffrey Oslund (2020–2022) — Chair
- Former: Michael A. Manship (2020–2022) — Trustee
- Former: Teresa S. Bowers (2020–2022) — Vice Chair & Trustee
- Former: Virginia Sisson (2020–2022) — Trustee
- Former: Wesley Ward (2022) — Trustee
- Former: A. Wesley Ward (2020–2021) — Chair
- Former: John F. Shroder Jr. (2020–2021) — Trustee
- Former: Judy Parrish (2020–2021) — Trustee
- Former: Randy G. Keller (2020–2021) — Trustee
- Former: Thomas Holzer (2020–2021) — Treasurer
- Former: Barbara L. Dutrow (2020) — Trustee
- Former: Lisa A. Rossbacher (2020) — Trustee
Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2025 IRS filing
Frequently asked questions about Geological Society of America Foundation
How much does Geological Society of America Foundation give each year?
Geological Society of America Foundation gave $1.9M across 1 grant in 2025, according to its 2025 IRS Form 990. In 2024 it gave $1.3M across 1 grant.
How large is Geological Society of America Foundation?
Geological Society of America Foundation reported $39.6M in total assets on its 2025 IRS Form 990. Its revenue that year was $3.4M.
What is Geological Society of America Foundation?
Geological Society of America Foundation is a nonprofit organization focused on Science & Technology, based in Boulder, CO. It holds $39.6M in total assets as of 2025.
Where does Geological Society of America Foundation operate?
Geological Society of America Foundation has awarded grants in Colorado.
What is Geological Society of America Foundation's EIN?
Geological Society of America Foundation's EIN (Employer Identification Number) is 74-2156871. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Here's the math on researching Geological Society of America Foundation by hand.
Explore Open Grants
Browse active grant opportunities in Geological Society of America Foundation's focus areas in our free grants database
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