The core activity of eRreNe encompasses a wide range of services in the fields of IT and office technology. The main activities include: IT consulting and solutions (eRreNe Consultant), data management and recovery (eRreNe Data), computer repair and maintenance (eRreNe Clinique), management of internet services such as domain registration and web hosting (eRreNe Management), administrative support (eRreNe Admin), sales of computer hardware and accessories (eRreNe Shop), web development and design (eRreNe Web), office software and services (eRreNe Bureautique), printing and binding services (eRreNe Print), creation of QR codes (eRreNe QR), and audio technology and rental (eRreNe Sonorisation). The company positions itself as a comprehensive service provider for all aspects of IT and office technology, with the goal of supporting customers in optimizing their business processes.