According to the current legislation in the Republic of Bulgaria, Montazhinzhenering AD has certificates for the execution of the following types of constructions:


First group, First category - Buildings of high-rise construction, its adjacent infrastructure, electronic communications networks and facilities;

Second group, Third category - Constructions of the transport infrastructure;

Third group, First category - Energy infrastructure constructions;

Fourth group, First category - Constructions of the public works infrastructure, hydraulic engineering construction and environmental protection;

Fifth group - Certain types of construction works in the "Construction" sector


Montazhinzhenering AD is certified according to the following internationally recognized standards:


EN ISO 9001: 2015 - Quality management system;

EN ISO 14001: 2015 - Environmental protection system;

ISO 45001: 2018 - Occupational health and safety management system;

EN 1090-2-2018 - System for implemented production control;

EN ISO 3834-2: 2021 - Quality requirements for fusion welding of metallic materials.