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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 Test Monitoring Center John Loop

John Loop

Highest compensated employee

Project Chemist at Test Monitoring Center

Fiscal year ended December 31, 2023. Published on January 25, 2026.

$190,411
2023

Total compensation

John Loop has been listed as an employee of Test Monitoring Center in Form 990 filings since fiscal year 2023.

Annual compensation details

$190,411
Project Chemist
2023
$136k related
--
$56k other
--

Total compensation by year

Compare the compensation of John Loop to:

2023

Other employees at Test Monitoring Center

Heidi Turley
Vice President Finance and Admin/Treasurer, ASTM
$433,678
$0 from org$339,858 from related$93,820 other
Jeffrey Clark
Executive Director and Secretary
$269,365
$0 from org$196,917 from related$72,448 other
Scott Parke
Software Engineering Manager
$238,753
$0 from org$162,932 from related$75,821 other
Richard Grundza
Principal Engineer
$215,684
$0 from org$152,646 from related$63,038 other
John Hrizo
Computer Networking Services Manager
$170,511
$0 from org$145,971 from related$24,540 other
Michael Kasimirsky
Senior Project Engineer
$168,814
$0 from org$134,394 from related$34,420 other
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Revisions to this profile

January 25, 2026:
2023 Test Monitoring Center 990 published

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