Shield AI is now one of the U.S.'s biggest defense tech startups by valuation, raising $240 million at a $5.3 billion valuation in its latest round. © 2024 TechCrunch. All rights reserved. For person...

Sequoia-backed Mach Industries, the defense tech founded by 21-year-old Ethan Thornton, landed a contract with the U.S. Army and has plans for its first factory, Thornton told TechCrunch. The factory ...