What about Accellion?
No mention of Accellion? They probably have the most mature and comprehensive offering out there are the moment.
There's a burst of activity in the file sync'n'share world as EMC, ownCloud and Box strive to reassure enterprise buyers that their products have the reliability and security they need, while satisfying end-users' needs for simplicity and convenience. Syncplicity has had its update announced in a blog post, which introduces …