The neo Software Produktions GmbH was a Vienna, Austria-based developer of video games. It was founded on January 4, 1993, by Niki Laber, Hannes Seifert and Peter Baustädter.
They joined Take-Two Interactive in February 2001, and in 2003 they joined Rockstar Games (as Rockstar Vienna). The company got shut down on May 11, 2006.
Source: Wikipedia, Neo Software, available under the CC-BY-SA License.