What Graphite stocks to lookout for in 2018 ??, page-82

I believe Versarien is the market leader as they are the only ones that can consistently produce sub 10 layer graphene in commercial quantities.
MOST COMPANIES WHO CLAIM TO PRODUCE GRAPHENE ARE UNLIKELY TO MEET THE NEW ISO STANDARD THAT WILL BE ISSUED.
Cambridge and Manchester Universities are shareholders having injected IP into the Versarien . Also Graphene is being treated as a strategic asset by the UK Government and they are assisting them in arranging global partnerships.

They are understood to have collaborations with the likes of Dow, Unilever, Nike , GE, Continental Tyres and quite a few others.