Omya with its five locations in five federal provinces and more than 300 employees ranks among the biggest mining companies in Austria. An evolution, which began only some 35 years ago.

1975  Omya bought the majority shareholding of „Gersheimsche Kalkstein- und Marmorwerke“ in Gummern
1990  Takeover of the Albogel GmbH
1996  Foundation of the Unikristall GmbH
1997  Start-up of the Unikristall plant in Golling, first PCC plant of the Omya Group
2000  Start-up of the Unikristall plant Hausmening
2007  Foundation of the Shiraishi-Omya GmbH, a Joint Venture of Shiraishi Kogyo and Omya
2008  Start-up of the Shiraishi-Omya plant in Golling