They bought a new site in 1879 to cope with their expanding business, on which larger workshops and dwellings for their workers were built. With this move, the name was changed to "Gebrüder Rieger". They developed a series of twenty five small organs, with between two and twenty five stops and an optional second manual for those with more than eight stops, as an alternative to the much cheaper harmonium. These organs were responsible for the high opus count of Rieger organs of this period.