Science and technology services; Industrial analysis and research services; Design and development of computer and mobile telephone software and hardware; Engineering services; Software development; Preparation of data processing programmes; Physics; Astronomy services; Research and development services in the field of the Internet of Things, virtual reality and augmented reality; Hardware and software development in the field of the Internet of Things, virtual reality and augmented reality; Technical consultancy in the field of the Internet of Things, virtual reality and augmented reality; Research and development services in the field of industrial automation, digitalisation and sensors; Hardware and software development in the field of industrial automation, digitalisation and sensors; Technical consultancy in the field of industrial automation, digitalisation and sensors; Research and development in the field of astronomy; Hardware and software development in the field of astronomy; Technical consultancy in the field of astronomy; Research and development services in the field of telephony, voice-over IP, internet communication, mobile telephony; Hardware and software development in the field of telephony, voice-over IP, internet communication, mobile telephony; Technical consultancy in the field of telephony, voice-over IP, internet communication, mobile telephony; Creation of programs for controlling optical, physical and astronomical apparatus; Creation of programs for controlling sensors, measuring apparatus and industrial robots; Creation of software protocols for data exchange of sensors and measuring apparatus; Creation of software for the evaluation of physical and astronomical data; Development of software applications for astronomical observatories; Creation of software for remote access to astronomical observatories; Development of software applications for computers and mobile telephones; Design and providing of homepages and Internet pages; Creation of programs for the compression, statistical preparation and evaluation of large quantities of data