Certificates

At Marsonia Montaža, quality and safety are the starting point of every project. We continuously optimize our workflows, modernize our technology, and uphold the strictest occupational health and safety standards to deliver flawless solutions in installation, welding, and shipbuilding.

Our expertise and reliability are proven by international certifications—ISO 9001:2015, SCC**:VAZ 2021 A V 2.0, EN ISO 1090, and ISO 3834, as well as ISO 3834-3 issued by the Croatian Register of Shipping (CRS)—making us a trusted partner for demanding projects across the industrial, energy, and shipbuilding sectors.