Guillaume Princen is an independent angel investor and technology advisor in Paris who previously served as. See portfolio, sector focus and contact routes.
Guillaume Princen is an independent angel investor and technology advisor in Paris who previously served as Head of EMEA at Stripe after launching its French market in 2014. He began his career as an Engagement Manager at McKinsey & Company and holds an MBA from Harvard Business School alongside engineering degrees from École Polytechnique. His investment thesis targets early-stage European startups, with a primary focus on fintech, B2B software, AI, and climatetech sectors. Princen has invested in over 20 startups since 2018, including a dozen dedicated fintech companies, and reports a realized IRR of 50%. While specific check sizes and lead/follow behavior are not publicly detailed, he has backed six European tech companies across funding rounds totaling €49M between 2021 and 2023. Notable portfolio companies include Mooncard, a European expense management platform where he served as CEO, and other fintech ventures within his broader portfolio. Princen distinguishes himself by combining executive scaling experience with strategic capital, emphasizing deliberate market localization when companies scale globally.
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