Expertise Systèmes Reseaux SA engages in the management of information technology and telecommunications infrastructures. It operates through the following businesses:...
QSC AG offers small and mid-size enterprises one-stop shopping for an extensive range of ICT services: from telephony, data transfer,...
China Telecom Corp. Ltd.
31 Jinrong Street Xicheng District
Beijing , BE 100033
SIC Code: 4813