DataDirect Networks (DDN) offers WOS, a scalable object storage device, providing disk-based backup solution.
The following is a quick overview of editions offered by other software in similar categories
IBM Cloud Object Storage is an IBM Cloud product in the endpoint backup and IaaS categories. It is commonly used for data archiving and backup, for web and mobile applications, and as scalable, persistent storage for analytics.
Vultr is an independent cloud computing platform on a mission to provide businesses and developers around the world with unrivaled ease of use, price-to-performance, and global reach.
Microsoft's Blob Storage system on Azure is designed to make unstructured data available to customers anywhere through REST-based object storage.