Guillaume Ghrenassia, based in Paris, FR, is currently a Auto-entrepreneur at www.ghrenassia.com, bringing experience from previous roles at IDBOOX.com, Pop Culture Days, LUXSURE Magazine and Crunchyroll. Guillaume Ghrenassia holds a 2015 - 2016 Bachelor's degree in Relations presse, relations publiques, événementiel @ ISCOM Paris. With a robust skill set that includes Communication, Twitter, Relations publiques, Social Media, WordPress and more, Guillaume Ghrenassia contributes valuable insights to the industry. Guillaume Ghrenassia has 1 email on RocketReach.