Nonprofit · EIN 74-2676631
SCIENTIFIC INVESTIGATION & INSTRUCTION INSTITUTE
Also known as SI3
Tax-exempt · AUSTIN, TX 78759
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $102,825 | $98,347 | $4,478 | $12,089 | $12,227 | -$138 |
| December 31, 2024 | 990 | $101,726 | $113,462 | -$11,736 | $14,155 | $18,771 | -$4,616 |
| December 31, 2023 | 990 | $125,169 | $121,600 | $3,569 | $26,970 | $19,850 | $7,120 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $0
- Program service revenue
- $102,820
- Investment income
- $5
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $0
- Other salaries and wages
- $4,710
- Salaries, compensation and benefits (total)
- $5,107
- Professional fundraising fees
- $0
- Accounting fees
- $4,020
- Occupancy
- $39,927
- Travel
- $33,456
- Depreciation
- $2,606
- Program services (functional)
- $82,689
- Management and general (functional)
- $15,658
Balance sheet and other
- Total assets, start of year
- $14,155
- Total assets, end of year
- $12,089
- Total liabilities, end of year
- $12,227
- Net assets, end of year
- -$138
- Land, buildings and equipment
- $738
- Gross receipts
- $102,825
- Employees
- 1
- Year formed
- 1993
- 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 |
|---|---|---|---|
| Oscar O Garza | Director Officer | 1 | $4,710 |
| John M Barrett Jr | President Trustee or director, Officer, Key employee, Highest-paid employee | 40 | $0 |
| Tina Fehrenbach | Secretary Officer | 1 | $0 |
990 for the year ended December 31, 2024: 3 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| John M Barrett Jr | President Trustee or director, Officer, Key employee, Highest-paid employee | 40 | $0 |
| Oscar O Garza | Director Officer | 1 | $0 |
| Tina Fehrenbach | Secretary Officer | 1 | $0 |
990 for the year ended December 31, 2023: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Oscar O Garza | Director Officer | 1 | $7,715 |
| John M Barrett Jr | President Trustee or director, Officer, Key employee, Highest-paid employee | 40 | $0 |
| Roy Rushing | Vice President Officer | 1 | $0 |
| Tina Fehrenbach | Secretary Officer | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 9430 RESEARCH BLVD 2-120, AUSTIN, TX 78759-6586
- In care of
- % JOHN M BARRETT JR
- Principal officer (990 for 2025)
- John M Barrett JR, 8857 Mountain Ridge, Austin, TX 78759
- Signed the 990
- John M Barrett JR, President
- Phone
- (512) 338-5379
- Website
- www.si3.org
- Return prepared by
- Thomas B Huver CPA PLLC
Mission
To provide training at the State and federal levels dealing with various environmental issues.
Program accomplishments
- The institute provides training courses on a monthly schedule. Multi-day courses are provided on an as needed basis.Expenses $82,689
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
- 74-2676631
- 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
- 1995
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Science and technology (U30)
- Assets (IRS master file)
- $12,089
- Income (IRS master file)
- $102,825
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $102,825 | $98,347 | $12,089 | IRS |
| 990 | December 2024 | $101,726 | $113,462 | $14,155 | XML |
| 990 | December 2023 | $125,169 | $121,600 | $26,970 | XML |
| 990 | December 2022 | $116,803 | $115,920 | $26,079 | 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 74-2676631).
Questions about SCIENTIFIC INVESTIGATION & INSTRUCTION INSTITUTE
- What is the EIN of SCIENTIFIC INVESTIGATION & INSTRUCTION INSTITUTE?
- The employer identification number (EIN) of SCIENTIFIC INVESTIGATION & INSTRUCTION INSTITUTE is 74-2676631.
- Is SCIENTIFIC INVESTIGATION & INSTRUCTION INSTITUTE tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1995.
- Are donations to SCIENTIFIC INVESTIGATION & INSTRUCTION INSTITUTE tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does SCIENTIFIC INVESTIGATION & INSTRUCTION INSTITUTE 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 SCIENTIFIC INVESTIGATION & INSTRUCTION INSTITUTE 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 SCIENTIFIC INVESTIGATION & INSTRUCTION INSTITUTE 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 SCIENTIFIC INVESTIGATION & INSTRUCTION INSTITUTE?
- The 990 for the year ended December 31, 2025 names John M Barrett JR.
- Who are the officers and directors of SCIENTIFIC INVESTIGATION & INSTRUCTION INSTITUTE?
- The 990 for the year ended December 31, 2025 lists 3 people; 1 received compensation from the organization, the highest $4,710 (Oscar O Garza, Director).
- How much revenue does SCIENTIFIC INVESTIGATION & INSTRUCTION INSTITUTE have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $102,825, expenses of $98,347 and total assets of $12,089 at year end.
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