GoGrid - Best of Cloud + Best of Hosting
Datomic - The fully transactional, cloud-ready, distributed database
FortaCloud - FortaCloud is a cloud computing services provider offering cast three continent network to ensure the maximum uptime.
Datahike - A durable datalog database adaptable for distribution.
Amazon AWS - Amazon Web Services offers reliable, scalable, and inexpensive cloud computing services. Free to join, pay only for what you use.
Google Cloud Datastore - Cloud Datastore is a NoSQL database for your web and mobile applications.