For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
Dropbox - Online Sync and File Sharing
Backblaze for Business - Manage Backblaze computer backup & B2 cloud storage
Google Drive - Access and sync your files anywhere
Unitrends Enterprise Backup - Unitrends Enterprise Backup software is an easy and affordable way to achieve enterprise backup and recovery.
Mega - Secure File Storage and collaboration
Bocada - Bocada is a backup reporting package for enterprises.