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.

Defense startup Shield AI has finalized a deal to raise $240 million from investors at a valuation of $5.3 billion — a funding round that adds billions to the company’s valuation, and underscores Silicon Valley investors’ interest in drones, autonomy and national security technology.

Defense technology startup Epirus has raised $250 million in a Series D funding round, as it looks to scale up production of its anti-drone weapons, the company said on Wednesday.

Just a day after anti-drone tech startup Epirus raised a $250 million Series D, defense and aerospace startup Shield AI locked up a $240 million F-1 strategic funding round at a $5.3 billion valuation.