LEICOM AG was founded in Winterthur, Switzerland, in 1996 by automation and control technology specialists. Today, LEICOM AG and ITEC AG have developed into smart building providers for digital infrastructures under the umbrella of the LEICOM Group. At five locations throughout Switzerland and Germany, the LEICOM Group offers system solutions and digital services for building and infrastructure automation. The consulting services and products of ITEC AG are based on the added value of cutting-edge digital technology. From the conceptual design to implementation and operation, e.g. energy optimization. LEICOM employees are motivated to develop conceptual and technical solutions to guarantee the efficient use of resources. ElioT was developed for this purpose. An open and BIM-compliant, scalable SaaS platform for collecting, storing and evaluating data from PLCs, bus systems, sensors (IoT), big data platforms, plants and buildings. ElioT combines traditional building automation with state-of-the-art digital technology. This enables a significant commercial and energetic increase in building performance: better usability for building users (Smart Assist) and increased business efficiency for building operators.