Pascal Gauthier is the Chief Executive Officer at Ledger. He began his career at Kelkoo, a price comparison service acquired by Yahoo for EUR 475 million in 2004. He then moved to the advertising company Criteo in 2008, where he worked for five years as COO, being instrumental in the pivot to advertising, which led to the company's global expansion and a EUR 2.17 billion market capitalisation.nPrior to being CEO at Ledger, Pascal worked as a Venture Partner at Mosaic Ventures, a London-based venture capital firm focused on Series A stage companies. Pascal is also the non-executive chairman of Kaiko, a financial data website on Bitcoin.