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Compensation 990 is an independent service that uses public IRS Form 990 filings as its source data. We clean and standardize this information, but the original filings may contain errors or omissions. Years on this site refer to the organization’s fiscal year end date on the filing.

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Employees TMT International Observatory LLC Benjamin Gallagher

Benjamin Gallagher

Highest compensated employee

Telescope Optics Group Leader at TMT International Observatory LLC

Fiscal year ended December 31, 2024. Published on January 25, 2026.

$344,211
2024

Total compensation

Benjamin Gallagher has been listed as an employee of TMT International Observatory LLC in Form 990 filings since fiscal year 2018. Total compensation for Benjamin Gallagher has decreased by 9% from 2018 to 2024.

Annual compensation details

$344,211
+4.2%
Telescope Optics Group Leader
2024
$280k org
40 hrs/wk
$65k other
--
$330,347
+4.3%
Telescope Optics Group Leader
2023
$270k org
40 hrs/wk
$62k other
--

Total compensation by year

Compare the compensation of Benjamin Gallagher to:

2024

Other employees at TMT International Observatory LLC

Robert Kirshner
Executive Director
$893,526
$837,584 from orgNo related comp$55,942 other
Fengchuan Liu
Project Manager
$454,988
$372,606 from orgNo related comp$82,382 other
Eric Hansen
Deputy Project Manager
$401,431
$313,164 from orgNo related comp$88,267 other
Jose Teran
Facilities Department HEAD
$373,220
$290,711 from orgNo related comp$82,509 other
Corinne Boyer
Adaptive Optics Group Leader
$336,852
$264,616 from orgNo related comp$72,236 other
Kyle Kinoshita
Telescope Struct. Group Leader
$306,270
$246,108 from orgNo related comp$60,162 other
Gelys Trancho
Project Systems Engineer
$300,318
$251,506 from orgNo related comp$48,812 other
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Revisions to this profile

January 25, 2026:
2024 TMT International Observatory LLC 990 published
January 25, 2026:
2023 TMT International Observatory LLC 990 published
January 25, 2026:
2022 TMT International Observatory LLC 990 published

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