PetaSAN - PetaSAN is an open source Scale-Out SAN solution offering massive scalability and performance.
Minio - Minio is an open-source minimal cloud storage server.
Amahi - Amahi is a media, home and app server software known for its easy-to-use user interface. Amahi has the best media, backup and web apps for small networks.
Google Cloud Storage - Google Cloud Storage offers developers and IT organizations durable and highly available object storage.
XigmaNAS - File Sharing, OS & Utilities, and Security & Privacy
Azure Blob Storage - Use Azure Blob Storage to store all kinds of files. Azure hot, cool, and archive storage is reliable cloud object storage for unstructured data