Box - Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.
Backblaze for Business - Manage Backblaze computer backup & B2 cloud storage
Nubo - A self-hosted file sharing application in Haskell.
4sync - A wonderful application that links all of your computers and mobile devices together. Easiest way to back up and sync your files online. Cross platform file management in the cloud
Bocada - Bocada is a backup reporting package for enterprises.
nFiles - Upload, get URLs to share.