Electric-car maker Tesla (NASDAQ: TSLA) announced in November that it was acquiring Grohmann Engineering, a German company that specializes in developing automated manufacturing with a heavy emphasis on the automotive sector (Tesla was previously a Grohmann customer). That was only Tesla’s third acquisition ever, preceded by Riviera Tool in 2015 and SolarCity, which was announced in June 2016 and closed just days after the Grohmann announcement.