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Organizations Science & Technology Research TMT International Observatory LLC

TMT International Observatory LLC

Fiscal year ending 2021. Filed on November 10, 2022.

100 W Walnut Street Suite 300
Pasadena, California 91124

TMT International Observatory LLC (EIN: 30-0833462) has filed an IRS Form 990 since at least fiscal year 2016. In its fiscal year 2021 IRS Form 990 filing, TMT International Observatory LLC, a 501(c)(3) charitable organization, reported compensation for 7 out of 53 total employees. Among the employees shown here, the average compensation is $321,662. The highest compensated employee at TMT International Observatory LLC is Fengchuan Liu with fiscal year 2021 compensation of $363,893.

Revenue, expenses, and employee compensation

Revenue

$25,562,706

Expenses

$15,258,260

Employee compensation

$5,149,109
Revenue, expenses, and employee compensation over time

Reported Compensated Employees

Fengchuan Liu
Project Manager
$363,893
$293,099 No related comp$70,794
Eric Hansen
Telescope Department HEAD
$332,543
$254,170 No related comp$78,373
Jose Teran
Facilities Department HEAD
$330,885
$262,246 No related comp$68,639
Ravinder Bhatia
Associate Project Manager
$323,948
$256,365 No related comp$67,583
Christophe Dumas
Observatory Scientist
$323,812
$273,933 No related comp$49,879
Benjamin Gallagher
Telescope Optics Group Leader
$298,693
$242,544 No related comp$56,149
Edward Stone
Executive Director
$277,858
$244,779 No related comp$33,079

Benchmark Employee Compensation

Non-Employee Board Members

An Ramaprakash
Governor
Diana Jergovic
Secretary/Governor/Act Treas.
Donald Brooks
Governor
Eswar Reddy
Governor
Feng Yuan
Governor
Gregg Goldman
Governor -Start DATE 1/21/2021
Henry Yang
Governor
Jonas Zmuidzinas
Governor
Kim Venn
Governor
Luc Simard
Governor
Michael Bolte
Governor
Paul Jenny
Gov/Act Treas-End DATE 1/21/21

Contractors

California Institute of Technology
Scientific
$4,311,118
Coherent Inc
Engineering
$2,204,000
Bcf Solutions Inc.
Professional
$2,007,708
M3 Engineering and Technology
Engineering
$668,923
Cilas
Engineering
$668,566

Mission Statement

SEE SCHEDULE O

Revisions to this organization profile

November 17, 2025:
2024 TMT International Observatory LLC 990 filed
November 13, 2024:
2023 TMT International Observatory LLC 990 filed
November 10, 2023:
2022 TMT International Observatory LLC 990 filed

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