Nonprofit · EIN 51-0174188
COLORADO SCHOOL OF MINES BUILDING CORPORATION
Tax-exempt · GOLDEN, CO 80401
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| June 30, 2025 | 990 | $11,279 | $56,308 | -$45,029 | $1,527,848 | $0 | $1,527,848 |
| June 30, 2024 | 990 | $10,070 | $56,293 | -$46,223 | $1,572,877 | $0 | $1,572,877 |
| June 30, 2023 | 990 | $30,355 | $56,293 | -$25,938 | $1,619,100 | $0 | $1,619,100 |
Financial details: 990 for the year ended June 30, 2025
Revenue
- Contributions, gifts and grants
- $0
- Program service revenue
- $0
- Investment income
- $0
- Net rental income
- $11,279
- Other revenue
- $11,279
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Depreciation
- $56,197
- Management and general (functional)
- $56,308
Balance sheet and other
- Total assets, start of year
- $1,572,877
- Total assets, end of year
- $1,527,848
- Total liabilities, end of year
- $0
- Net assets, end of year
- $1,527,848
- Land, buildings and equipment
- $117,052
- Gross receipts
- $1,562,188
- Employees
- 0
- Volunteers
- 0
- Year formed
- 1975
- State of legal domicile
- CO
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 June 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| Kirsten Volpi | President Trustee or director, Officer | 5 | $0 | $419,744 | $105,845 |
| Jason Slowinski | Vice President Trustee or director, Officer | 5 | $0 | $225,597 | $57,486 |
| Noelle Sanchez | Secretary Treasurer Trustee or director, Officer | 5 | $0 | $158,182 | $54,659 |
| Michael Dunn | Secretary Treasurer Trustee or director, Officer | 5 | $0 | $151,869 | $47,209 |
990 for the year ended June 30, 2024: 3 people
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| Kirsten Volpi | President Trustee or director, Officer | 5 | $0 | $403,373 | $98,377 |
| Jason Slowinski | Vice President Trustee or director, Officer | 5 | $0 | $215,160 | $52,841 |
| Noelle Sanchez | Secretary Treasurer Trustee or director, Officer | 5 | $0 | $197,055 | $68,649 |
990 for the year ended June 30, 2023: 4 people
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| Kirsten Volpi | President Trustee or director, Officer | 5 | $0 | $374,103 | $88,230 |
| Noelle Sanchez | Secretary Treasurer Trustee or director, Officer | 5 | $0 | $166,714 | $58,446 |
| Jason Slowinski | Vice President Trustee or director, Officer | 5 | $0 | $159,209 | $38,182 |
| Gary Bowersock | Vice President, Retired Trustee or director, Officer, Former | 1 | $0 | $117,551 | $44,424 |
Address and contacts
- Address (IRS master file)
- 1500 ILLINOIS STREET SUITE 210, GOLDEN, CO 80401-1887
- In care of
- % COLORADO SCHOOL OF MINES
- Principal officer (990 for 2024)
- Kirsten Volpi, 1500 Illinois Street Suite 210, Golden, CO 80401
- Signed the 990
- Kirsten Volpi, President
- Phone
- (303) 273-3528
- Website
- www.mines.edu
Mission
The Corporation's purpose is to collect rent from an external party. The income is transferred to the Colorado School of Mines to maintain and support the building renewal and replacement initiatives of the School.
Program accomplishments
- The Corporation's purpose is to collect rent from an external party. The income is transferred to the Colorado School of Mines to maintain and support the building renewal and replacement initiatives of the School.0
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 June, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | June 30, 2026 | November 16, 2026 | Not due yet |
| 2024 | June 30, 2025 | November 17, 2025 | 990 on file |
| 2023 | June 30, 2024 | November 15, 2024 | 990 on file |
IRS record
- EIN
- 51-0174188
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Supporting organization (509(a)(3))
- Donations deductible (Pub 78)
- Supporting organization of unknown type
- Exempt since
- 1976
- Accounting year ends
- June
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Education (B99I)
- Assets (IRS master file)
- $1,527,848
- Income (IRS master file)
- $1,562,188
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | June 2025 | $11,279 | $56,308 | $1,527,848 | IRS |
| 990 | June 2024 | $10,070 | $56,293 | $1,572,877 | XML |
| 990 | June 2023 | $30,355 | $56,293 | $1,619,100 | XML |
| 990 | June 2022 | – | – | – | IRS |
| 990 | June 2021 | – | – | – | 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 51-0174188).
Questions about COLORADO SCHOOL OF MINES BUILDING CORPORATION
- What is the EIN of COLORADO SCHOOL OF MINES BUILDING CORPORATION?
- The employer identification number (EIN) of COLORADO SCHOOL OF MINES BUILDING CORPORATION is 51-0174188.
- Is COLORADO SCHOOL OF MINES BUILDING CORPORATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1976.
- Are donations to COLORADO SCHOOL OF MINES BUILDING CORPORATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Supporting organization of unknown type).
- Which annual return does COLORADO SCHOOL OF MINES BUILDING CORPORATION 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 COLORADO SCHOOL OF MINES BUILDING CORPORATION due?
- The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did COLORADO SCHOOL OF MINES BUILDING CORPORATION last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended June 2025.
- Who is the principal officer of COLORADO SCHOOL OF MINES BUILDING CORPORATION?
- The 990 for the year ended June 30, 2025 names Kirsten Volpi.
- Who are the officers and directors of COLORADO SCHOOL OF MINES BUILDING CORPORATION?
- The 990 for the year ended June 30, 2025 lists 4 people; 0 received compensation from the organization.
- How much revenue does COLORADO SCHOOL OF MINES BUILDING CORPORATION have?
- On its 990 for the year ended June 30, 2025 it reported revenue of $11,279, expenses of $56,308 and total assets of $1,527,848 at year end.
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