Geochemical Society
Donations deductibleGeochemical Society's network
17 peoplei17 people on this map.The large node is the subject of this page. Solid lines are what the register itself records (17). Form 990 filings give names without a person identifier; SEC insider filings carry a CIK.The board
17 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record. The organisation reported 17 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.| Name | Role as filed | Since | On the board |
|---|---|---|---|
| Magdalena Osburn Chair | Organic Geochemistry Division Chair | 2025 | 1 yr |
| Anthony Kemp | Director | 2024 | 2 yrs |
| Benjamin Tutolo | Company secretary | 2023 | 3 yrs |
| Carme Huguet | Director | 2023 | 3 yrs |
| Dominique Weis | Vice President | 2018 | 8 yrs |
| Elisabeth Sikes | President | 2023 | 3 yrs |
| Elisabeth Widom | Director | 2025 | 1 yr |
| Frances Jenner | International Secretary | 2023 | 3 yrs |
| Haibo Zou | Treasurer | 2020 | 6 yrs |
| Hailiang Dong | GCA Executive Editor | 2025 | 1 yr |
| Marian Selorm Sapah | Director | 2024 | 2 yrs |
| Mariano Remirez | Director | 2025 | 1 yr |
| Nagissa Mahmoudi | Goldschmidt Officer | 2025 | 1 yr |
| Natasha Barrett | Director | 2024 | 2 yrs |
| Sumit Chakraborty | Past President | 2020 | 6 yrs |
| Sung Hi Choi | Director | 2024 | 2 yrs |
| Tina van de Flierdt | Director | 2025 | 1 yr |
Officers and senior leadership
1 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.| Name | Title as filed | On the filings |
|---|---|---|
| Haibo Zou | Treasurer | 2019 |
Pay and hours
year to 31 December 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.| Name | Title as filed | Hours a week | Pay from the organisation | Related organisations | Other |
|---|---|---|---|---|---|
| Dominique Weis | Vice President | 2 | $0 | ||
| Magdalena Osburn | Organic Geochemistry Division Chair | 2 | $0 | ||
| Nagissa Mahmoudi | Goldschmidt Officer | 2 | $0 | ||
| Hailiang Dong | GCA Executive Editor | 2 | $0 | ||
| Natasha Barrett | Director | 2 | $0 | ||
| Frances Jenner | International Secretary | 2 | $0 | ||
| Haibo Zou | Treasurer | 2 | $0 | ||
| Sumit Chakraborty | Past President | 2 | $0 | ||
| Elisabeth Sikes | President | 2 | $0 | ||
| Benjamin Tutolo | Secretary | 2 | $0 | ||
| Elisabeth Widom | Director | 2 | $0 | ||
| Sung Hi Choi | Director | 2 | $0 | ||
| Carme Huguet | Director | 2 | $0 | ||
| Tina van de Flierdt | Director | 2 | $0 | ||
| Mariano Remirez | Director | 2 | $0 | ||
| Anthony Kemp | Director | 2 | $0 | ||
| Marian Selorm Sapah | Director | 2 | $0 |
No pay was reported for anyone in Part VII on this return.
About
- Legal name
- Geochemical Society
- EIN
- 520783490
- Address
- 4220 King St, Alexandria, VA, 22302-1507
- State
- Virginia
- Mission
- To encourage the application of geochemistry to improving our understanding of the Earth and solar system. (as filed on the Form 990)
- Activity (NTEE)
- U33C Science and technology research
- IRS classification
- 501(c)03 (tax-exempt under section 501(c)(3) where shown)
- Classified purpose
- Science & Technology
- Size band
- 6 (IRS master file code)
- Formed
- 1990
- Principal officer
- Haibo Zou (as named on the Form 990)
- IRS ruling date
- 1 July 1991
- Status
- Code 01 (unconditional exemption)
- Form 990 filings on record
- 8, latest 2025
- IRS Publication 78
- PC (contributions deductible)
Most connected
Longest observed on the filings
≥8years on the filingsDominique Weis
≥6years on the filingsHaibo Zou
≥6years on the filingsSumit Chakraborty
≥3years on the filingsBenjamin Tutolo
Latest return
year to 31 December 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2025. US dollars, as filed.- Total assets
- $4.3m
- Total liabilities
- $116k
- Net assets or fund balances
- $4.2m
- Contributions and grants received
- $48k
- Program service revenue
- $111k
- Employees
- 0
- Volunteers
- 80
Filed finances
1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.| Tax year | Total revenue | Total expenses | Surplus or deficit |
|---|---|---|---|
| 2024 | $1.9m | $1.8m | $150k |
As filed on the IRS Form 990. US dollars.