Adler Group S.A. is a Luxembourg-based real estate holding company with subsidiaries primarily operating in Germany, specializing in the management and development of income-producing multi-family residential real estate. It owns and manages approximately 17,772 residential rental units, with around 99% concentrated in Berlin, focusing mainly on the affordable housing market segment. In addition to its rental portfolio, the company holds development projects in major German cities, aiming to generate cash flow through forward sales or upfront sales rather than long-term holding. Adler Group S.A. reported 428 employees as of June 30, 2025, across Luxembourg and Germany, and derives its sales predominantly from residential property management, real estate operations via subsidiaries like ADLER RE and Consus, and privatization activities, all centered in Germany. Formerly known as ADO Properties, it plays a role in the residential real estate development and operations sector, emphasizing affordable housing solutions amid a portfolio shaped by strategic asset management.