Are they "growing"?
Q3 2016 financial highlights are:
Revenue: $197M
Loss: $78M
Source: https://investor.purestorage.com/news-and-events/press-releases/press-release-details/2016/Pure-Storage-Announces-Third-Quarter-Fiscal-2017-Results/default.aspx
Revenues are up, sure. But profitability? Seems a long way off.