Adler Group S.A., together with its subsidiaries, operates as a residential real estate company in Germany. It operates through Residential Property Management and Privatization segments. The company is involved in the rental and management of residential properties, including modernization and maintenance of residential properties, management of tenancy agreements, and marketing of residential units. It also engages in holding, operating, and selling commercial units; and the modernization, maintenance, and management of non-vacant units. The company was formerly known as ADO Properties S.A. and changed its name to Adler Group S.A. in October 2020. The company was founded in 2006 and is based in Senningerberg, Luxembourg.