The company was founded in 1948 and has passed a long path of progress to be recognized today as a reliable partner in construction of industrial oil and gas plants, chemical and petrochemical plants, construction of pipelines for all media, and production of steel structures and pressure vessels.

Over the last 70 years, the company has been systematically developing its way of work performance, introducing and implementing new technologies, investing in education and human resources, new tools and mechanization. Special emphasis is put on education of the welders, and acceptance and application of the latest technologies.

In the year 1995, the company has experienced a significant turning point, MONTER was privatized and division for mechanical construction was transformed into joint stock company MONTER – Strojarske montaže d.d., acting in that way ever since.

Privatization was a step which improved efficiency and quality, and made the company easily recognizable in the market. Due to the achieved results, the company gained investor's trust and became capable to take over and contract specialized jobs.

Encouraged by business success, in 2007. the company has invested in construction of new business building, bringing together administration, engineering, production, mechanization, maintenance and warehouse to one place. All business activities are united in one location, which reduced costs and increased efficiency in production and business.

By establishing subsidiaries in foreign markets, the company became competitive beyond the borders of the Republic of Croatia, and thus adapted to the requirements and needs of the market. The company, with its headquarters in Zagreb, has founded representative offices in Bosnia and Herzegovina, Czech Republic and Slovenia.

Today MONTER – Strojarske montaže d.d. has a strong market position regarding mechanical assembly activities due to continuous investments in new technologies and extensive experience of its employees in the fields of planning, organization, management and execution of works.

In 2021, the company MONTER – Strojarske montaže d.d. became a member of the prestige association IPLOCA International Pipe Line & Offshore Contractors Association.