Borromin Capital-backed Koop Group, a specialist for groundwater management and water purification, completed the acquisition of Walter Clausen, a service provider for drainage. Financial terms were not disclosed. ”With Martin Clausen, Koop gains another experienced manager in the area of groundwater management. Clausen expands the group’s business activities not only in terms of product range and customer base, but also strengthens Koop’s market position in northern Germany. In addition, access to the attractive Danish market is being made possible," Ronny Konink, Koop Group CEO.