American Institue of Professional Geologists
The American Institute of Professional Geologists (AIPG), founded in 1963, is the largest association dedicated to promoting geology as a profession. It presently has more than 5,000 members in the U.S. and abroad, organized into 35 regional Sections. The Institute adheres to the principles of professional responsibility and public service and is the only international organization that certifies the competence and ethical conduct of geological scientists in all branches of the science with members employed in industry, government, and academia. AIPG emphasizes competence, integrity and ethics. AIPG is an advocate for the profession and communicates regularly to federal and state legislators and agencies on matters pertaining to the geosciences.
American Institue of Professional Geologists at a glance
- Total assets
- $3,410,480
- -33.4% vs 2024
- Revenue (2025)
- $549,928
- +4.4% vs 2024
- Net investment income (2025)
- $33,723
- -51.8% vs 2024
- Expenses (2025)
- $817,409
- -12.6% vs 2024
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated November 2026.
Who American Institue of Professional Geologists funds
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2024, annual grant giving ranged from $8K (2021) to $19K (2023). In 2024 it reported $19K in grants paid, as a total without an itemized list.
Hatched bars: grants paid as reported on the IRS filing, which lists no individual grants for that year.
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $3,410,480 | $549,928 | $817,409 | — | — | $33,723 |
| 2024 | $5,118,807 | $526,780 | $934,782 | $18,851 | Total only | $69,977 |
| 2023 | $3,094,361 | $804,134 | $916,149 | $19,238 | Total only | $251,423 |
| 2022 | $2,763,277 | $808,949 | $858,832 | $8,218 | Total only | $-43,685 |
| 2021 | $3,145,022 | $984,035 | $761,019 | $8,218 | Total only | $112,474 |
| 2020 | $2,764,711 | $917,200 | $769,808 | $15,773 | 1 | $59,628 |
| 2019 | $2,486,529 | $1,101,559 | $887,088 | $15,776 | 1 | $252,463 |
"Total only": grants paid as reported on the IRS filing, which lists no individual grants for that year.
About American Institue of Professional Geologists
Based on IRS filings
American Institue of Professional Geologists is a public charity, based in Northglenn, CO. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $3.4M in total assets. Net investment income was $34K.
Leadership & Key People
Officers and directors from IRS filings
American Institue of Professional Geologists is led by Aaron W Johnson, Executive Director since 2020 (on filings since 2019); 1 of 9 officers listed in 2025 is compensated.
Officers on the 2025 filing
Aaron W Johnson
Executive Director
Exc. Director → Executive Director, 2020
On filings since 2019
40 hrs/week
$114K (2019) → $114K (2025)
Sara K Pearson
President
Secretary → President, 2024
On filings since 2020
2 hrs/week
No compensation reported
Adam W. Heft
Editor
Editor → Foundation Manager, 2024
Foundation Manager → Editor, 2025
On filings since 2019
2 hrs/week
No compensation reported
J Todd McFarland
Treasurer
Past President → Vice President, 2024
Vice President → Treasurer, 2025
On filings since 2020
2 hrs/week
No compensation reported
Shanna A. Schmitt
Past President
President Elect → President, 2024
President → Past President, 2025
On filings since 2020
2 hrs/week
No compensation reported
Robert Andrews
Secretary
Advisory Board → Secretary, 2024
On filings since 2023
2 hrs/week
No compensation reported
Charles Drake
Presidnet Elect
New on the 2025 filing
2 hrs/week
No compensation reported
Christopher Hogan
Vice President
New on the 2025 filing
2 hrs/week
No compensation reported
Hannah Weaver
Early Career Professional
New on the 2025 filing
2 hrs/week
No compensation reported
Former officers (32)
- Former: Dawn H. Garcia (2020–2024) — President
- Former: Brigitte Petras (2023–2024) — Foundation Manager
- Former: Mark Schaaf (2023–2024) — Treasurer
- Former: Clint Noble (2024) — Foundation Manager
- Former: Mark Howell (2024) — Foundation Manager
- Former: Paula Leier-Engelhardt (2024) — Foundation Manager
- Former: Mehmet Pehlivan (2019–2023) — Advisory Board
- Former: Andrews Jones (2020–2023) — Advisory Board
- Former: Jessica Davey (2020–2023) — Past Yp Member
- Former: Matthew J. Rhoades (2020–2023) — Past President
- Former: Dennis Pennington (2023) — Vice President
- Former: John Sorrell (2023) — Secretary
- Former: William Brab (2023) — Advisory Board
- Former: Christine F. Lilek (2019–2022) — Vie President
- Former: Nancy J. Wolverson (2019–2022) — President
- Former: Brandy M. Myers (2021–2022) — Advisory Board
- Former: Brent R. Smith (2021–2022) — Advisory Board
- Former: David T. Heidlauf (2021–2022) — Treasurer
- Former: Randall L. Kath (2021–2022) — Advisory Board
- Former: Taylor Murray (2021–2022) — Early Career Professional
- Former: Troy P. Bernier (2021–2022) — Advisory Board
- Former: John L. Berry (2019–2020) — Editor
- Former: Keri A. Nutter (2019–2020) — Past President
- Former: Colin O. Flaherty (2020) — Advisory Board
- Former: Erica J. Stevenson (2020) — Past Yp Member
- Former: Stephen J. Baker (2020) — Advisory Board
- Former: Anne Murray (2019) — Secretary
- Former: Brandy M. Barnes (2019) — Young Professio
- Former: James R. Burnell (2019) — Treasurer
- Former: Jeffrey J. Frederick (2019) — Vice President
- Former: John M. Stewart (2019) — Advisory Board
- Former: R. Douglas Bartlett (2019) — President
Data from IRS Form 990 filings, 2019–2025. "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
The highest reported compensation on the 2025 filing was $114K, to Aaron Johnson (Executive Director).
Frequently asked questions about American Institue of Professional Geologists
How large is American Institue of Professional Geologists?
American Institue of Professional Geologists reported $3.4M in total assets on its 2025 IRS Form 990. Its revenue that year was $550K.
Where does American Institue of Professional Geologists operate?
American Institue of Professional Geologists has awarded grants in Virginia.
What is American Institue of Professional Geologists's EIN?
American Institue of Professional Geologists's EIN (Employer Identification Number) is 84-0532962. IRS Form 990 filing data is available on this page for 2019–2025.
Data last updated November 2026. Sourced from IRS Form 990 filings.
Data update history
(7)
When this profile's IRS filing data changed on Grantable
- Added Form 990 for fiscal year 2025 (received by the IRS September 9, 2026)
- Added Form 990 for fiscal year 2019 (received by the IRS March 16, 2022)
- Updated Form 990 for fiscal year 2021 (received by the IRS November 15, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS July 20, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS November 14, 2024)
- Updated Form 990 for fiscal year 2024 (received by the IRS August 28, 2025)
- IRS filings on file for fiscal years 2020–2024
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