In the spring of 1998, our company sold the multilicence of ELIS electronic information system to Železnice Slovenskej republiky – the Slovak Railway Company. ELIS is a tool for searching optimal connections in railway passenger transport. On the ŽSR website at https://www.zsr.sk/pre-cestujucich/vlakove-spojenia-elis/, there is a search tool that uses our search engine with data from railway transport created by ŽSR using our tools.