Quoting from the Evault official announcement:
EVault, Inc., a Seagate Technology company and the trusted expert in complete data protection solutions, today announced general availability of the EVault VMware Plug-in for customers of the EVault Protect Software as a Service (SaaS) and EVault InfoStage licensed software, and service providers offering data protection services powered by EVault technology
…
The EVault VMware Plug-in leverages and extends EVault’s DeltaPro technology to virtual environments by backing up and compressing only new and changed data at the block level, which enhances network performance, decreases the backup window and lowers the overall storage footprint.
…
Data is securely sent offsite to one of EVault’s seven secure Tier III and IV datacenters, which are all SAS 70 Type II certified.
…
The EVault VMware Plug-in is available now as an add-on for EVault SaaS and software customers as well as through service providers offering data protection services based on EVault technology.