Sync.com - Sync. com offers a backup tool and a file sharing service, rolled into one.
Freshservice - Freshservice: the one-stop cloud solution for all your IT management needs.
Yandex.Disk - Files on Yandex.Disk won't get lost if your phone or computer breaks.
Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community
Zoho WorkDrive - File storage & content collaboration tool for modern teams
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.