The core activities of ZM-Montag Ltd. include assemblage and welding of steel construction, main pipelines, industrial plants and reservoirs.
The company has 800 employees, out of which 300 are employed in Croatia and 350 abroad (Germany, Czech Republic, Great Britain, Russia etc.).
The company employs 300 certified welders that are trained to perform all conventional welding procedures: REL (111), MAG (135) and (136), UP (121), 4 EWE engineers, 2 EWT technologists and 2 EWS specialists. ZM-Montag Ltd. has its own welding school that trains and certifies, according to European standards, welders within Zagreb Montaža Group.
ZM-Montag Ltd. is not just a classic assemblage company, but is also capable of executing facilities according to the "turn-key" system. Since March 2008 ZM-Montag Ltd. has Croatian I. category license for constructing buildings that are in level I. demanding group, issued by Croatian Ministry of Construction and Physical Planning.
Since May 2011 – “Authorization for performing construction activities such as: executing works on facilities in oil and gas industry (oil pipelines, gas pipelines) – mechanical engineering domain”, issued by Federal Ministry of Physical Planning of the Federation of Bosnia and Herzegovina.
ZM-Montag Ltd. is a company specialized for facility construction according to the "turn-key" system.