Nonprofit · EIN 52-0783490
GEOCHEMICAL SOCIETY
Tax-exempt · ALEXANDRIA, VA 22302
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $417,744 | $520,897 | -$103,153 | $4,284,754 | $115,525 | $4,169,229 |
| December 31, 2024 | 990 | $1,927,415 | $1,777,565 | $149,850 | $4,034,920 | $178,497 | $3,856,423 |
| December 31, 2023 | 990 | $318,933 | $558,693 | -$239,760 | $3,562,705 | $112,568 | $3,450,137 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $48,073
- Program service revenue
- $110,842
- Investment income
- $184,826
- Royalties
- $73,951
- Net gain from sales of assets
- $16,953
- Net income from sales of inventory
- $52
- Other revenue
- $74,003
Expenses
- Grants and similar amounts paid
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Legal fees
- $5,670
- Accounting fees
- $11,230
- Travel
- $16,649
- Program services (functional)
- $372,409
- Management and general (functional)
- $83,901
- Fundraising (functional)
- $64,587
Balance sheet and other
- Total assets, start of year
- $4,034,920
- Total assets, end of year
- $4,284,754
- Total liabilities, end of year
- $115,525
- Net assets, end of year
- $4,169,229
- Publicly traded securities
- $3,670,839
- Net assets without donor restrictions
- $3,890,391
- Net assets with donor restrictions
- $278,838
- Gross receipts
- $504,111
- Employees
- 0
- Volunteers
- 80
- Year formed
- 1990
- State of legal domicile
- TX
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Dominique Weis | Vice President Trustee or director, Officer | 2 | $0 |
| Magdalena Osburn | Organic Geochemistry Division Chair Trustee or director, Officer | 2 | $0 |
| Nagissa Mahmoudi | Goldschmidt Officer Trustee or director, Officer | 2 | $0 |
| Hailiang Dong | GCA Executive Editor Trustee or director, Officer | 2 | $0 |
| Natasha Barrett | Director Trustee or director | 2 | $0 |
| Frances Jenner | International Secretary Trustee or director, Officer | 2 | $0 |
| Haibo Zou | Treasurer Trustee or director, Officer | 2 | $0 |
| Sumit Chakraborty | Past President Trustee or director, Officer | 2 | $0 |
| Elisabeth Sikes | President Trustee or director, Officer | 2 | $0 |
| Benjamin Tutolo | Secretary Trustee or director, Officer | 2 | $0 |
| Elisabeth Widom | Director Trustee or director | 2 | $0 |
| Sung Hi Choi | Director Trustee or director | 2 | $0 |
| Carme Huguet | Director Trustee or director | 2 | $0 |
| Tina van de Flierdt | Director Trustee or director | 2 | $0 |
| Mariano Remirez | Director Trustee or director | 2 | $0 |
2 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Anthony Kemp | Director Trustee or director | 2 | $0 |
| Marian Selorm Sapah | Director Trustee or director | 2 | $0 |
990 for the year ended December 31, 2024: 17 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Natasha Barrett | Director Trustee or director | 2 | $0 |
| Marly Babinski | Director Trustee or director | 2 | $0 |
| Sung Hi Choi | Director Trustee or director | 2 | $0 |
| Carme Huguet | Director Trustee or director | 2 | $0 |
| Lucien Nana Yobo | Director Trustee or director | 2 | $0 |
| Alexis Templeton | Director Trustee or director | 2 | $0 |
| Anthony Kemp | Director Trustee or director | 2 | $0 |
| Marian Selorm Sapah | Director Trustee or director | 2 | $0 |
| Dominique Weis | Vice President Trustee or director, Officer | 2 | $0 |
| Christopher Junium | Organic Geochemistry Division Chair Trustee or director, Officer | 2 | $0 |
| Craig Lundstorm | Goldschmidt Officer Trustee or director, Officer | 2 | $0 |
| Jeff Catalano | GCA Executive Editor Trustee or director, Officer | 2 | $0 |
| Frances Jenner | International Secretary Trustee or director, Officer | 2 | $0 |
| Haibo Zou | Treasurer Trustee or director, Officer | 2 | $0 |
| Sumit Chakraborty | Past President Trustee or director, Officer | 2 | $0 |
| Elisabeth Sikes | President Trustee or director, Officer | 2 | $0 |
| Benjamin Tutolo | Secretary Trustee or director, Officer | 2 | $0 |
990 for the year ended December 31, 2023: 15 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Allison Greaney | Director Trustee or director | 2 | $0 |
| Liping Zhou | Director Trustee or director | 2 | $0 |
| Marly Babinski | Director Trustee or director | 2 | $0 |
| Alexis Templeton | Director Trustee or director | 2 | $0 |
| Lucien Nana Yobo | Director Trustee or director | 2 | $0 |
| Carme Huguet | Director Trustee or director | 2 | $0 |
| Elisabeth Sikes | Vice President Trustee or director, Officer | 2 | $0 |
| Benjamin Tutolo | Secretary Trustee or director, Officer | 2 | $0 |
| Craig Lundstorm | Goldschmidt Officer Trustee or director, Officer | 2 | $0 |
| Christopher Junium | Organic Geochemistry Division Trustee or director, Officer | 2 | $0 |
| Vickie Bennett | Past President Trustee or director, Officer | 2 | $0 |
| Jeff Catalano | GCA Executive Editor Trustee or director, Officer | 2 | $0 |
| Sumit Chakraborty | President Trustee or director, Officer | 2 | $0 |
| Haibo Zou | Treasurer Trustee or director, Officer | 2 | $0 |
| Frances Jenner | International Secretary Trustee or director, Officer | 2 | $0 |
Address and contacts
- Address (IRS master file)
- 4220 KING ST, ALEXANDRIA, VA 22302-1507
- In care of
- % HAIBO ZOU
- Principal officer (990 for 2025)
- Haibo Zou, 4220 King St, Alexandria, VA 22302
- Signed the 990
- HAIBO ZOU, Treasurer
- Phone
- (202) 545-6946
- Website
- www.geochemsoc.org
- Return prepared by
- Mullins PC
Mission
To encourage the application of geochemistry to improving our understanding of the Earth and solar system.
Program accomplishments
- Scientific conference bringing together researchers and students to present and discuss the latest findings in geochemistry and related subjects. Attendance at the Annual Meeting is approximately 2,500.Expenses $183,017
- Other Programs - Awards program recognizing major achievements in the field; student workshops and conference travel grants; and capacity-building grant program that supports training and topical workshops.Expenses $109,644 · revenue $99,034
- Publication of a journal, newsletter, and magazine, development and maintenance of a website to educate scientists about their field.Expenses $79,748 · revenue $11,808
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 52-0783490
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1991
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Science and technology (U33C)
- Assets (IRS master file)
- $4,284,754
- Income (IRS master file)
- $504,111
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $417,744 | $520,897 | $4,284,754 | XML |
| 990 | December 2024 | $1,927,415 | $1,777,565 | $4,034,920 | XML |
| 990 | December 2023 | $318,933 | $558,693 | $3,562,705 | XML |
| 990 | December 2022 | $1,902,288 | $1,594,904 | $3,442,310 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 52-0783490).
Questions about GEOCHEMICAL SOCIETY
- What is the EIN of GEOCHEMICAL SOCIETY?
- The employer identification number (EIN) of GEOCHEMICAL SOCIETY is 52-0783490.
- Is GEOCHEMICAL SOCIETY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1991.
- Are donations to GEOCHEMICAL SOCIETY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does GEOCHEMICAL SOCIETY file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of GEOCHEMICAL SOCIETY due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did GEOCHEMICAL SOCIETY last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of GEOCHEMICAL SOCIETY?
- The 990 for the year ended December 31, 2025 names Haibo Zou.
- Who are the officers and directors of GEOCHEMICAL SOCIETY?
- The 990 for the year ended December 31, 2025 lists 17 people; 0 received compensation from the organization.
- How much revenue does GEOCHEMICAL SOCIETY have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $417,744, expenses of $520,897 and total assets of $4,284,754 at year end.
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