Headquarters
11602 LAWTER LN, CLIFTON, VA 20124-2259, US
CLIFTON, VA, US
JOHN H NORTHROP & ASSOCIATES INC
From the company
JHNA is a technical digital engineering firm founded in 2001 that provides engineering practices and technical solutions to government partners, including the DoD, NASA, and commercial partners. In December 2025, CTSi, EXPANSIA, JHNA, and TSA merged to create Aether Aerospace. JHNA is headquartered in California, Maryland, with services extending throughout the United States.
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