WUPPERTAL, GERMANY — With an acquisition of shares of Wuppertal-based Guest-One, Riedel has gained first-class expertise and deep understanding of software-based participant management. The aim of this investment is to set new standards for visitor and event security with customized solutions, all from a single source. Customers will benefit from a comprehensive solution for guest and crew management along with cost-effective and seamless integration into a uniform event … [Read more...] about Riedel Acquires Shares in Guest-One