The core activity of TechTown GmbH is providing cloud-based solutions for businesses, particularly in the areas of: * Telephony (3CX Telephony): cloud-based telephone systems * E-Mail communication (SEPPmail): secure e-mail communication with automatic domain encryption and signing * Infrastructure-as-a-Service (IaaS): highly available and scalable infrastructure solutions for businesses. In addition, the company also offers other services such as IT support, IT consulting, web design, application development, and SEO optimization.