Petra emerges from stealth with $30M raised for tunnel-boring robot, Swifty – TechCrunch
Petra emerged from stealth this week, announcing a $30 million Series A. The round, led by DCVC, brings the robotics company’s funding up to $33 million, with additional participation from ACME Capital Congruent Ventures, 8VC, Real Ventures, Elementum Ventures and Mac Venture Capital. “We’ve invented a completely new way to excavate rock and this will…