GRAPHENEA, nanoGUNE’s first start-up company launched in April 2010 as a joint venture of private investors and nanoGUNE, has become a world leader in the production of high-quality graphene. In 2013, Repsol and the Spanish Center for Industrial Technology Development (CDTI) signed an agreement to invest one million euros in GRAPHENEA. Following the foundational agreement of the company, in April 2015 nanoGUNE let GRAPHENEA fly alone.