Two leading, nationally operating Finnish design companies in the area of house building have decided to connect their activities. Engineering office Niemi & Co Ltd is melted into AIRIX Building Services Ltd starting from 1.1.2011. The affiliated company of Niemi & Co Ltd – engineering office Chydenius Ltd from Jyväskylä - will continue operating as a daughter company of the company formed as the result of the merger. Employees of Niemi & Co will move to the service of AIRIX Building Services Ltd as old staff.