About us KELLNER CZ s.r.o. was founded in 1990 as a family business under the name Ing. Jan Kellner. The company was transformed into KELLNER CZ s.r.o. in 2005. The company now has over 70 employees. The company can flexibly respond to customer requirements thanks to sufficient human resources, production and storage capacities. KELLNER CZ s.r.o. manufactures and supplies plastic products – from polypropylene (PP) and polyethylene (PE). These include overground and underground tanks used to store various liquid and loose materials, as well as other plastic products. Our employees have certified technologist and European welder qualifications. Our many years of experience in plastics welding and the established ISO system guarantee the high quality of our products.