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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 Challenger Center for Space Science Education William J Seilnacht

William J Seilnacht

Highest compensated employee

Senior Director, Network Support at Challenger Center for Space Science Education

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

$122,929
2024

Total compensation

William J Seilnacht has been listed as an employee of Challenger Center for Space Science Education in Form 990 filings since fiscal year 2019. Total compensation for William J Seilnacht has increased by 16.3% from 2019 to 2024.

Annual compensation details

$122,929
+3.3%
Senior Director, Network Support
2024
$120k
40 hrs/wk
$4k
--
$118,971
+5.6%
Senior Director, Network Support
2023
$116k
40 hrs/wk
$4k
--
$112,646
+1.8%
Senior Director, Network Support
2022
$110k
40 hrs/wk
$4k
--
$110,679
+0.2%
Senior Director, Network Support
2021
$108k
40 hrs/wk
$4k
--
$110,513
+4.6%
Senior Director, Network Support
2020
$108k
40 hrs/wk
$4k
--
$105,657
Sr Director, Network Support
2019
$103k
40 hrs/wk
$4k
--

Total compensation by year

Compare the compensation of William J Seilnacht to:

Revisions to this profile

January 25, 2026:
2024 Challenger Center for Space Science Education 990 published
January 25, 2026:
2023 Challenger Center for Space Science Education 990 published
January 25, 2026:
2022 Challenger Center for Space Science Education 990 published

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2024

Other employees at Challenger Center for Space Science Education

Dr Lance Bush
President and CEO (Through 5/17/24)
$365,991
$353,442 No related comp$12,549
Lisa C Vernal
Vice President Communications and Center Relations
$156,473
$146,245 No related comp$10,228
Valerie Anne Fitton-Kane
Vice President Dev., Partnerships and Strategy
$146,003
$138,980 No related comp$7,023
Kevin Harrell
Vice President, Education
$143,098
$133,023 No related comp$10,075
Michael Cruz
Sr Director Software and Product Dev.
$133,475
$124,765 No related comp$8,710
Mr Steven Goldberg
Chief Financial Officer and Treasurer
$97,663
$97,663 No related compNo other comp
Ms Shiron Gaines
Secretary and EA to President
$54,373
$54,373 No related compNo other comp
Mr Michael Kincaid
President and Executive Director
$21,458
$21,458 No related compNo other comp
Chelsea Rosasco
EA to President and CEO
$8,105
$7,631 No related comp$474