The Microsoft, Caterpillar and Schlumberger-backed exoskeleton developer has raised series C funding from Rotor Capital and most of its existing investors.

Sarcos Robotics, a US-based industrial robot developer backed by corporates Microsoft, Caterpillar and Schlumberger, attracted $40m on Tuesday in a series C round led by investment firm Rotor Capital.

The oversubscribed round also featured ‘most’ of the company’s existing backers. It was founded in 1983 and acquired by defence and industrial technology supplier Raytheon in 2007 before its CEO led a buyout in 2015, since which it has raised approximately $96m.

Sarcos produces robotic systems with robust and flexible materials…