Nonprofit · EIN 86-0724677
LARGE BINOCULAR TELESCOPE CORPORATION
Tax-exempt · TUCSON, AZ 85721
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $15,015,334 | $20,699,263 | -$5,683,929 | $88,756,521 | $7,433,673 | $81,322,848 |
| December 31, 2024 | 990 | $15,240,683 | $22,090,572 | -$6,849,889 | $94,570,234 | $7,563,457 | $87,006,777 |
| December 31, 2023 | 990 | $24,120,428 | $22,571,536 | $1,548,892 | $101,579,590 | $7,722,924 | $93,856,666 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $14,849,000
- of which government grants
- $7,424,500
- Program service revenue
- $0
- Investment income
- $142,680
- Other revenue
- $23,654
Expenses
- Grants and similar amounts paid
- $10,000
- Compensation of officers, directors and key employees
- $30,000
- Salaries, compensation and benefits (total)
- $30,000
- Professional fundraising fees
- $0
- Legal fees
- $8,685
- Accounting fees
- $26,460
- Occupancy
- $1,009,711
- Travel
- $51,509
- Depreciation
- $7,850,129
- Program services (functional)
- $18,585,139
- Management and general (functional)
- $2,114,124
Balance sheet and other
- Total assets, start of year
- $94,570,234
- Total assets, end of year
- $88,756,521
- Total liabilities, end of year
- $7,433,673
- Net assets, end of year
- $81,322,848
- Land, buildings and equipment
- $81,652,530
- Net assets without donor restrictions
- $81,322,848
- Gross receipts
- $15,015,334
- Employees
- 0
- Volunteers
- 13
- Year formed
- 1992
- State of legal domicile
- AZ
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 |
|---|---|---|---|
| Adriano Fontana | Chiarman & President Trustee or director, Officer | 4 | $30,000 |
| Chris Kochanek | Vice Chairman Trustee or director, Officer | 2 | $0 |
| Andreas Quirrenbach | Director Trustee or director | 2 | $0 |
| Roberto Ragazzoni | Director to 3/25, Member Representative Trustee or director | 2 | $0 |
| Isabella Pagano | Director Trustee or director | 2 | $0 |
| Matthias Steinmetz | Director Trustee or director | 2 | $0 |
| Evan Kirby | Director Trustee or director | 2 | $0 |
| Dennis Zaritsky | Director Trustee or director | 2 | $0 |
| Buell Jannuzi | Director & Member Representative Trustee or director | 2 | $0 |
| Hans-Walter Rix | Member Representative Trustee or director | 2 | $0 |
| Susan Olesik | Member Representative Trustee or director | 2 | $0 |
| Fillippo Zerbi | Member Representative Trustee or director | 2 | $0 |
| Nicole Cochran | Treasurer Officer | 2 | $0 |
| Elizabeth Green | Secretary Officer | 2 | $0 |
990 for the year ended December 31, 2024: 13 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Adriano Fontana | Chiarman & President Trustee or director, Officer | 4 | $27,500 |
| Chris Kochanek | Vice Chairman Trustee or director, Officer | 2 | $0 |
| Andreas Quirrenbach | Director Trustee or director | 2 | $0 |
| Roberto Ragazzoni | Director Trustee or director | 2 | $0 |
| Matthias Steinmetz | Director Trustee or director | 2 | $0 |
| Evan Kirby | Director Trustee or director | 2 | $0 |
| Dennis Zaritsky | Director Trustee or director | 2 | $0 |
| Buell Jannuzi | Director & Member Representative Trustee or director | 2 | $0 |
| Hans-Walter Rix | Member Representative Trustee or director | 2 | $0 |
| Susan Olesik | Member Representative Trustee or director | 2 | $0 |
| Fillippo Zerbi | Member Representative Trustee or director | 2 | $0 |
| Mathias Voss | Treasurer Officer | 2 | $0 |
| Elizabeth Green | Secretary Officer | 2 | $0 |
990 for the year ended December 31, 2023: 13 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| ADRIANO FONTANA | CHAIRMAN & PRESIDENT Trustee or director, Officer | 2 | $20,000 |
| EVAN KIRBY | DIRECTOR Trustee or director | 2 | $0 |
| ANDREAS QUIRRENBACH | DIRECTOR Trustee or director | 2 | $0 |
| ROBERTO RAGAZZONI | DIRECTOR Trustee or director | 2 | $0 |
| MATTHIAS STEINMETZ | DIRECTOR Trustee or director | 2 | $0 |
| DENNIS ZARITSKY | DIRECTOR Trustee or director | 2 | $0 |
| BUELL JANNUZI | DIRECTOR & MEMBER REPRESEN Trustee or director | 2 | $0 |
| THOMAS HENNING | MEMBER REPRESENTATIVE Trustee or director | 2 | $0 |
| SUSAN OLESIK | MEMBER REPRESENTATIVE Trustee or director | 2 | $0 |
| FILLIPPO ZERBI | MEMBER REPRESENTATIVE Trustee or director | 2 | $0 |
| CHRIS KOCHANEK | VICE CHAIRMAN Trustee or director, Officer | 2 | $0 |
| MATHIAS VOSS | TREASURER Officer | 2 | $0 |
| ELIZABETH GREEN | SECRETARY Officer | 2 | $0 |
Address and contacts
- Address (IRS master file)
- 933 N CHERRY AVE RM 552, TUCSON, AZ 85721-0009
- In care of
- % THE UNIVERSITY OF ARIZONA
- Principal officer (990 for 2025)
- Adriano Fontana, 933 N Cherry Ave Rm 552, Tucson, AZ 85721
- Signed the 990
- Adriano Fontana, President
- Phone
- (520) 626-5231
- Website
- lbto.org
- Return prepared by
- Keegan Linscott & Associates PC
Mission
The LBT Corporation's purpose is to maintain and operate a large optical observatory for astronomical research which will expand humanity's knowledge of space from the vicinity of Earth to the edge of the observable universe.
Program accomplishments
- A total of 277.5 nights were offered to the LBTO partners and science staff in 2025 for scientific observations, while 20.5 were devoted to engineering work. Poor weather resulted in a loss of 36% of scheduled science time, which is better than the long-term average. A total of 60 scientific papers based on LBT data were published in 2025 in refereed journals.Expenses $18,585,139 · grants $10,000
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
- 86-0724677
- 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
- 1997
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Science and technology (U310)
- Assets (IRS master file)
- $88,756,521
- Income (IRS master file)
- $15,015,334
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $15,015,334 | $20,699,263 | $88,756,521 | XML |
| 990 | December 2024 | $15,240,683 | $22,090,572 | $94,570,234 | XML |
| 990 | December 2023 | $24,120,428 | $22,571,536 | $101,579,590 | XML |
| 990 | December 2022 | $12,383,410 | $20,068,645 | $100,280,191 | 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 86-0724677).
Questions about LARGE BINOCULAR TELESCOPE CORPORATION
- What is the EIN of LARGE BINOCULAR TELESCOPE CORPORATION?
- The employer identification number (EIN) of LARGE BINOCULAR TELESCOPE CORPORATION is 86-0724677.
- Is LARGE BINOCULAR TELESCOPE CORPORATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1997.
- Are donations to LARGE BINOCULAR TELESCOPE CORPORATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does LARGE BINOCULAR TELESCOPE 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 LARGE BINOCULAR TELESCOPE CORPORATION 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 LARGE BINOCULAR TELESCOPE CORPORATION 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 LARGE BINOCULAR TELESCOPE CORPORATION?
- The 990 for the year ended December 31, 2025 names Adriano Fontana.
- Who are the officers and directors of LARGE BINOCULAR TELESCOPE CORPORATION?
- The 990 for the year ended December 31, 2025 lists 14 people; 1 received compensation from the organization, the highest $30,000 (Adriano Fontana, Chiarman & President).
- How much revenue does LARGE BINOCULAR TELESCOPE CORPORATION have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $15,015,334, expenses of $20,699,263 and total assets of $88,756,521 at year end.
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