Fastighets Ab Sibbo Ämbetshus - Kiinteistö Oy Sipoon Virastotalo

REIM Isännöinti is a Finnish property management company serving housing cooperatives (taloyhtiöt) with administrative, financial, and technical management services. They emphasize preserving and increasing the value of shareholder investments through professional management, modern tools like consumption monitoring and long-term repair planning. Their Rmappi digital platform provides residents and shareholders with self-service access to housing-related services.