The IET HOLDING The IET Holding is the parent company for three enterprises, which were brought together, in order to be able to offer for network carriers and manufacturers of telecommunications products comprehensive services out from one hand. The three enterprises cover the entire life cycle of a multimedia communications network with their portfolios - from the network design to construction and maintenance to distribution and logistics of net components and measuring systems. InventCon Europe GmbH Market analysis, technical validations, feasibility studies, network optimizations, sales and marketing. Industrial Engineering and Technologies GmbH Network design and documentation, construction and extension of network infrastructure, system integration, maintenance and repair.   ANEDIS GmbH Wholesale of components for coax and fiber networks, communications test and management systems, logistics and distribution.