Wincor Nixdorf was a German corporation that provided retail and retail banking hardware, software, and services. Wincor Nixdorf was engaged primarily in the sale, manufacture, installation and service of self-service transaction systems (such as ATMs), retail banking equipment, lottery terminals, postal terminals, software and services for global financial and commercial markets. On August 15, 2016, through the merger of Wincor Nixdorf and Diebold Inc., Diebold Nixdorf was formed as an international technology and services company

Founded by Heinz Nixdorf, Nixdorf Computer was formed in 1952. In 1990 the company was purchased by Siemens AG and renamed Siemens Nixdorf Informationssysteme. The company was re-focused exclusively on its current product set in 1998 and renamed Siemens Nixdorf Retail and Banking Systems GmbH. Following a buyout by Kohlberg Kravis Roberts and Goldman Sachs Capital Partners on October 1, 1999, the company was renamed Wincor Nixdorf. The company was taken public May 19, 2004 with a successful IPO. On November 8, 2006, Chief Executive Officer Karl-Heinz Stiller announced his resignation from the Board of Directors. Eckard Heidloff was elected as his replacement (http://www.wincor-nixdorf.com/)