Zeiler is specialized in growing and packing tomatoes. The greenhouses are located in Münchendorf and Enzersdorf a.d. Fischa (AUT) and Lébény (HU). Also, Zeiler tomatoes are grown in a partner greenhouse in Burgenland (AUT). In total Zeiler tomatoes are growing in 28 hectares of greenhouses.
The Austrian tomatoes are mainly sold in the supermarket chains of REWE Group in Austria; Hungarian tomatoes are delivered to REWE Group International (Billa Slovakia, Billa Czech Republic), Spar, Tesco and smaller customers.
In Austria Zeiler is using assimilation lamps, which allow to produce tomatoes 365 days a year – Zeiler is the only Austrian company that produces tomatoes in winter.
In the greenhouse in Lébény, Hungary, hot water from a geothermical well is used to heat the greenhouse, which is a very ecological way of heating.