Nonprofit · EIN 88-0988993
UNITED STATES EARTH SCIENCE ORGANIZATION INC
Tax-exempt · TULSA, OK 74103
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $108,693 | $100,542 | $8,151 | $35,933 | $0 | $35,933 |
| December 31, 2024 | 990 | $102,526 | $89,564 | $12,962 | $27,782 | $0 | $27,782 |
| December 31, 2023 | 990 | $87,082 | $72,629 | $14,453 | $14,929 | $0 | $14,929 |
| December 31, 2022 | 990 | $24,471 | $23,995 | $476 | $476 | $0 | $476 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $17,348
- Program service revenue
- $90,812
- Investment income
- $533
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $24,284
- Salaries, compensation and benefits (total)
- $24,622
- Professional fundraising fees
- $0
- Legal fees
- $430
- Accounting fees
- $1,050
- Travel
- $19,660
- Program services (functional)
- $81,815
- Management and general (functional)
- $18,727
Balance sheet and other
- Total assets, start of year
- $27,782
- Total assets, end of year
- $35,933
- Total liabilities, end of year
- $0
- Net assets, end of year
- $35,933
- Net assets without donor restrictions
- $35,933
- Gross receipts
- $108,693
- Employees
- 1
- Year formed
- 2022
- State of legal domicile
- OK
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 |
|---|---|---|---|
| CHELSEA BRUNNER-BOURNE | EXECUTIVE DI Officer | 10 | $24,284 |
| BEN CHOI | CHAIR Trustee or director, Officer | 1 | $0 |
| AISHA OWUSU | MEMBER Trustee or director | 1 | $0 |
| IDA HEMPEL | MEMBER Trustee or director | 1 | $0 |
990 for the year ended December 31, 2024: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| CHELSEA BRUNNER-BOURNE | EXECUTIVE DI Officer | 10 | $29,162 |
| BEN CHOI | CHAIR Trustee or director, Officer | 1 | $0 |
| AISHA OWUSU | MEMBER Trustee or director | 1 | $0 |
| IDA HEMPEL | MEMBER Trustee or director | 1 | $0 |
990 for the year ended December 31, 2023: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| CHELSEA BRUNNER-BOURNE | EXECUTIVE DI Officer | 10 | $20,830 |
| BEN CHOI | CHAIR Trustee or director, Officer | 1 | $0 |
| AISHA OWUSU | MEMBER Trustee or director | 1 | $0 |
| IDA HEMPEL | MEMBER Trustee or director | 1 | $0 |
990 for the year ended December 31, 2022: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| CHELSEA BRUNNER-BOURNE | EXECUTIVE DI Officer | 10 | $10,000 |
| BEN CHOI | CHAIR Trustee or director, Officer | 1 | $0 |
| AISHA OWUSU | MEMBER Trustee or director | 1 | $0 |
| IDA HEMPEL | MEMBER Trustee or director | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 333 W 4TH ST FL 1 # 2064, TULSA, OK 74103-3896
- In care of
- % CHELSEA BRUNNER-BOURNE
- Principal officer (990 for 2025)
- CHELSEA BRUNNER-BOURNE, 12011 E 85TH PL N, OWASSO, OK 74055
- Signed the 990
- CHELSEA BRUNNER-BOURNE, EXECUTIVE DIRECTOR
- Phone
- (646) 831-6410
- Website
- WWW.USESO.ORG
- Return prepared by
- STOTTS ARCHAMBO MUEGGENBORG & BARCLAY PC
Mission
THE UNITED STATES EARTH SCIENCE ORGANIZATION (USESO) INCENTIVIZES AND PREPARES AMBITIOUS, PURPOSE-DRIVEN STUDENTS TO WORK ON ERA-DEFINING CHALLENGES THAT INTERSECT EARTH, TECHNOLOGY, AND SOCIETY. OUR PROGRAM IDENTIFIES AND SERVES STUDENTS WHO EXHIBIT POTENTIAL FOR BECOMING FORMIDABLE LEADERS THROUGH DEEP UNDERSTANDING OF A SPECIFIC DOMAIN AND INDEPENDENCE OF THOUGHT. WE PROVIDE STUDENTS WITH OPPORTUNITIES FOR COLLABORATION, CREATIVITY, AND INDIVIDUAL AGENCY THROUGH COMPETITION, OUTDOOR FIELD STUDIES, AND DISCUSSIONS LED BY INDUSTRY EXPERTS AND FACULTY. BY INVESTING IN THESE STUDENTS EARLY IN THEIR JOURNEY, OUR IMPACT COMPOUNDS EXPONENTIALLY OVER TIME TOWARDS ASSEMBLING A TRULY INFLUENTIAL GENERATION OF LEADERS CAPABLE OF MAKING HIGH-LEVERAGE DECISIONS IN THE PLANETS BEST INTEREST.
Program accomplishments
- TRAINING CAMPExpenses $81,815 · revenue $90,812
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
- 88-0988993
- 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
- 2023
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Education (B90)
- Assets (IRS master file)
- $35,933
- Income (IRS master file)
- $108,693
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $108,693 | $100,542 | $35,933 | XML |
| 990 | December 2024 | $102,526 | $89,564 | $27,782 | XML |
| 990 | December 2023 | $87,082 | $72,629 | $14,929 | XML |
| 990 | December 2022 | $24,471 | $23,995 | $476 | XML |
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 88-0988993).
Questions about UNITED STATES EARTH SCIENCE ORGANIZATION INC
- What is the EIN of UNITED STATES EARTH SCIENCE ORGANIZATION INC?
- The employer identification number (EIN) of UNITED STATES EARTH SCIENCE ORGANIZATION INC is 88-0988993.
- Is UNITED STATES EARTH SCIENCE ORGANIZATION INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2023.
- Are donations to UNITED STATES EARTH SCIENCE ORGANIZATION INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does UNITED STATES EARTH SCIENCE ORGANIZATION INC 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 UNITED STATES EARTH SCIENCE ORGANIZATION INC 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 UNITED STATES EARTH SCIENCE ORGANIZATION INC 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 UNITED STATES EARTH SCIENCE ORGANIZATION INC?
- The 990 for the year ended December 31, 2025 names CHELSEA BRUNNER-BOURNE.
- Who are the officers and directors of UNITED STATES EARTH SCIENCE ORGANIZATION INC?
- The 990 for the year ended December 31, 2025 lists 4 people; 1 received compensation from the organization, the highest $24,284 (CHELSEA BRUNNER-BOURNE, EXECUTIVE DI).
- How much revenue does UNITED STATES EARTH SCIENCE ORGANIZATION INC have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $108,693, expenses of $100,542 and total assets of $35,933 at year end.
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