Guillaume Princen leads Anthropic's sales efforts across Europe, the Middle East, and Africa. Prior to joining Anthropic, he served as CEO of Mooncard, a European expense management platform. He was Stripe's first employee outside the United States, where he built and scaled Stripe's European operations for seven years, opening 12 offices and establishing EMEA as a key growth driver. His career began at McKinsey & Company, focusing on business strategy. Guillaume holds an MBA from Harvard Business School and master's degrees from Collège des Ingénieurs and CentraleSupélec. He is also an active angel investor and advisor in the European technology ecosystem, specializing in AI, fintech, B2B SaaS, and climatetech ventures, with over 20 years of experience in revenue, product, and operations.