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.
Public Charity
Large Binocular Telescope Corporation
Large Binocular Telescope Corporation is a nonprofit organization categorized as Public Charity based in Tucson, AZ. Its most recent IRS filing (2025) reports revenue of $15.0M, expenses of $20.7M, total assets of $88.8M.
EIN: 860724677
Tucson, AZ
Astronomy
NTEE: U31
Latest filing: 2025
Total Revenue$15.0M
Total Expenses$20.7M
Total Assets$88.8M
Grant Records0
Filing Years2020–2025
Where $100 goes at Large Binocular Telescope Corporation
How Large Binocular Telescope Corporation divides every $100 it spends, from its own Form 990 filings, averaged across 8 years.
$91
Programs
the work itself
$9
Management
running the organization
$0
Fundraising
none reported
No fundraising costs are reported. That often means fundraising runs through a separate affiliated organization that files its own return.
Inside the $91 for programs
$91
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
Source: Form 990 filings with the IRS, latest fiscal year 2025. Shares are from the organization's reported expenses. Data by Imperigo; not affiliated with the IRS.
Officers & Directors
Chiarman & President
Adriano Fontana
Director
Andreas Quirrenbach
Director & Member Representative
Buell Jannuzi
Vice Chairman
Chris Kochanek
Director
Dennis Zaritsky
Secretary
Elizabeth Green
Officer compensation and complete director data available with membership.
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $15.0M | $20.7M | $88.8M |
| 2024 | $15.2M | $22.1M | $94.6M |
| 2023 | $24.1M | $22.6M | $101.6M |
| 2022 | $12.4M | $20.1M | $100.3M |
| 2020 | $12.3M | $19.5M | $112.9M |
Between 2020 and 2025, reported annual revenue grew from $12.3M to $15.0M (+22%), with total assets most recently reported at $88.8M.
Interactive year-over-year charts and full filing details available with membership.