Guillaume Marien began his career with the creation of a company specializing in IT services and internet technologies.
After several experiences in financial management and transition within companies in the digital transformation, data and VFX/animation sector (Cross System and Sparx FX) in the early 2000s, he founded Mathematic in 2006.
Guillaume holds degrees in econometrics, economics and management from the Universities of Lyon-Lumière and Panthéon-Assas.