Hans and Grete Attensam founded their eponymous company in 1980. At that time, the company identified itself primarily as a winter service provider. Over the years, the founders understood the great market potential and expanded their company by adding diverse services connected to property management.

As the Attensam family apartment, initially also used as their office, became too small. In 1990, the company moved to its first real office premises in the Heiligenstädterstraße.

The company continued to grow and succeed. Its expansion to other federal states in Austria was the next logical step for Hans and Grete. In 2002, the St. Pölten location was inaugurated, a year later the branch in Salzburg. Again a year later other business locations were opened, such as in Rumania. The administration, the location and workshops soon moved to Klosterneuburg. A new office was constructed with enough space to accommodate 100 employees.

In 2011, it was decided that the company would withdraw from abroad and sell its foreign subsidiaries. Oliver Attensam took over the entire operations from this point onwards for the entire group. As the Austrian family business, it is now currently concentrating on locations in the Austrian federal states.