Investis Holding SA (SWX:IREN) agreed to acquire Hauswartprofis AG on December 12, 2016. Hauswartprofis reported revenue of CHF 18 million in 2015. Walter Eberle will continue to manage Hauswartprofis in the Investis group after the integration. In addition, Walter Eberle will now also take over the management of the Investis subsidiary Treos. The previous Treos boss Ricarda Berg will leave the company to look for a new professional challenge. The transaction is expected to close on January 1, 2017. Investis Holding SA (SWX:IREN) completed the acquisition of Hauswartprofis AG on January 10, 2017.