Samantha Subin / CNBC:Austin-based Saronic, which builds military autonomous ships, raised a $1.75B Series D led by Kleiner Perkins at a $9.25B valuation, up from $4B in Feb. 2025 — Autonomous ship startup Saronic said Tuesday that it's raised $1.75 billion as it ramps up production to meet mounting U.S. military demand …