DIA Connecting Software GmbH & Co. KG is a German company that provides flexible and integrated software systems for procurement, purchasing, and sales. They specialize in e-business solutions for B2B customers in the DACH region, including highly scalable B2B e-commerce portals, EDI systems for paperless data exchange, and intelligent warehouse management systems. The company focuses on optimizing business processes and connecting business areas in e-procurement and e-sales.