What are some alternatives?
When comparing GroupDocs and FileAgo, you can also consider the following products
Microsoft OneDrive - Secure access, sharing & file storage
ownCloud - ownCloud is an open source project enabling businesses to host their own cloud storage while maintaining regulatory and compliance needs.
TeamWox - TeamWox is a groupware system designed to optimize the business management.
HRCloud2 - A full-featured home-hosted Cloud Drive & Personal Assistant.
AirMason - Employee Handbooks Done Right. Start from a template and send a beautiful employee handbook that they actually want to read. Publish digitally or as a PDF.
Pydio - Put your data in Orbit