Zadmix: Zadran Group of Companies is a leading producer of aggregates, Zadmix concrete and other construction materials. With over three stationary aggregate plants, one Zadmix concrete plant and a ready mix plant, the Zadran Group Construction Company, along with our affiliates, is able to provide construction materials of exceptional quality. This capability, in conjunction with our engineering services department, provides every customer a product that meets or exceeds required performance standards.