SummarySpace Tech Expo USA is happening from 21 May 2019, Tuesday to 22 May 2019, Wednesday at Pasadena Convention Center in Pasadena, CA. The organizer of the event is Smartershows. The event is open to trade visitors. The estimated number of attendance is 4,000. The estimated number of exhibitors is 220. The frequency of Space Tech Expo USA is annual. The event has been running since 2012.