Cohort, the independent technology group, completed the acquisition of Wartsila ELAC Nautik, a Germany-based market leader in naval surface ship and submarine sonar systems, for €11m. "The acquisition of ELAC is a significant step for Cohort, adding a sixth standalone business to our growing and profitable portfolio. It is highly complementary to our core capabilities in defence and security, with a leading position in the attractive and growing submarine and surface sonar markets, strengthening and broadening the Group's existing capabilities in maritime systems," Andrew Thomis, Cohort Chief Executive Officer.