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,...
TalkTalk Telecom Group Plc
11 Evesham Street
London , LO W11 4AR
SIC Code: 4813