The company was founded in 1962 by Olav Olsen. He was a very skilled student and famous for his theory: "Continuous Shells" ® In short, one can say that the company is built on his doctoral thesis on concrete shell structures. More than 60 years of resilient and socially beneficial structures have given us a substantial competence bank.

From the early 1970s, the company played a significant role in the development and engineering of the Condeep platforms in the North Sea, which has made major contributions to the development of modern Norway.  We are now applying this core competence to a wide range of tasks such as fjord crossings, urban development, fixed and floating foundations for offshore wind and other structures in and by the sea.

Today we are 160 employees at Lysaker outside Oslo, in Bergen, Trondheim and Ålesund. We are owned by a french engineering consultancy Artelia Group, with more than 10.000 employees worldwide, and headquarters in Paris, France.