Dropbox is an easy to use freemium cloud storage solution. It has a client sync utility for multiple platforms.

MEGA is the cloud-based file hosting solution.

Resilient, fast and scalable file sync software for enterprises and individuals.

Nomadesk is a leading provider of file sharing, storage and synchronization software.

Tresorit is an online cloud storage service based in Switzerland and Hungary that emphasizes enhanced security and data encryption for Businesses.

Gladinet is an on-premises, enterprise file synchronization and sharing (EFSS) platform.

Memotoo sync all your contacts from Gmail, Facebook, phone, Thunderbird, Outlook, etc in a single address book.

Microsoft OneDrive is a cloud-based storage solution from Microsoft.

Box is an online file sharing and content management service.

Koofr offers safe EU based cloud storage with 2 GB free cloud storage space for life and options to connect multiple cloud accounts.

Storage Made Easy provides a hybrid Cloud File Server Enterprise File Share and Sync Solution.

Insync is the most powerful Google drive client ever built. Windows, Mac, Linux, multiple account and external drive support, document conversion, etc.

ASUS WebStorage is a Cloud Storage Service that helps user backup data, sync file between devices and share data to friends.