ownCloud is an open source file sync and sharer with a focus on providing universal file access to mobile device users. It tells us it had 100 per cent revenue growth from 2014 to 2015, scoring $8m in 2015 bookings.
In 2014 there were 3.6 million downloads of its code, which number jumped to 8.7 million in 2015. Some 300 large organisations are now customers.