CloudSigma AG is a public Infrastructure‐as‐a‐Service (IaaS) provider offering a virtual data center product through a public cloud delivery mechanism. Its primary European location is in Zürich, Switzerland. CloudSigma has built a transparent and flexible utility style platform and approach which is disrupting the IaaS space. CloudSigma provides completely open software and networking layers allowing customers to run cloud servers with any operating system and full (sole) root control unmodified within its cloud. In the Helix Nebula project, CloudSigma lead activities on requirements.