Archival Storage

ArkivumLong term large-scale digital archiving service.
Amazon GlacierAmazon Web Services (AWS) archive and backup solution designed for long-term storage and infrequent access.
HP Autonomy Digital SafeHosted archiving solution complying with information governance requirements and risk mitigation.
Atempo ASG-Digital ArchiveFile archiving software offering long-term retention and easy retrieval.
ZadaraStaaS (storage-as-a-service") provider offering cloud or on-premise solutions.