Siemens Nixdorf is an information technology company.
Siemens Nixdorf Informationssysteme AG, an information technology company, provides mainframes, Open Unix/Sinix-systems, networking software, databases and application software for office automation, and CASE or engineering solutions. It was formed in 1990 by the merger of Nixdorf Computer AG and the Siemens' Data Information Services (DIS) division.