CloudSigma
 CloudSigma AG is an infrastructure as a service (IaaS) company based in Zurich Switzerland. The company also has offices in Sofia Bulgaria. It hosts its servers from the Interxion data centre in Glattbrugg near Zurich as well as in SuperNAP in Las Vegas.CloudSigma provides services on a utility computing basis with open networking and an open software layer. Their cloud servers are managed via its web based provisioning portal or via API.