GK Software SE engages in the development of software platforms for the retail sector. It operates through the following geographical segments: EMEA, Americas, and Other Business Activities. The Other Business Activities segment includes real estate held as a financial investment as well as the Tannenhaus complex. The company was founded by Rainer Gläß and Stephan Kronmüller in August 1990 and is headquartered in Schoeneck, Germany.