Based at Limena in Italy, Zilmet are an international leader in the production of high quality pressure tanks and expansion vessels. Zilmet currently have 4 production plants and their head office in Italy along with regional offices elsewhere in Europe, North America and China.

Zilmet operate to the ISO 9001 quality standard and the Regulation PED 2014/68/EU related to pressure systems. Their products have also obtained several Potable Water Certificates such as WRAS in the UK.