belgium
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Karel Callens and the distance to an answer
In 2019, Karel Callens taught Alexa to answer a revenue question. The Luzmo co-founder has spent years working on the harder part: getting useful, trustworthy answers to people wherever they work.
Olivier Verdin Was Early. The Market Took Its Time.
AppTweak needed three years to reach profitability. For Olivier Verdin, a founder who also teaches entrepreneurship, the wait became a practical lesson in choosing partners, asking better questions and keeping people’s trust.
Jonathan Cornelissen
Jonathan Cornelissen is a Belgian entrepreneur, PhD in financial econometrics, and the co-founder and founding CEO of DataCamp, the online data science education platform he started in 2013. Frustrated while teaching himself R during his doctorate, he built DataCamp to make data skills accessible through interactive, browser-based courses. Over six years as CEO he grew it to more than 10 million learners, 200,000 paying subscribers, 2,500 enterprise customers and over $50 million in annual recurring revenue. He authored an introductory R course completed by over a million learners. Since stepping back from the CEO role he has focused on angel investing across education, AI and crypto, and writes about company building, hiring and startup equity.
Pierre-Antoine Mariage
Pierre-Antoine Mariage is the founder and CEO of Botalys, a Belgian agtech company that grows rare medicinal plants like Korean ginseng and Fjord Rhodiola indoors using a proprietary hydroponic technology, supplying ultra-pure botanical ingredients to the nutraceutical, cosmetic and pharmaceutical industries.
Michael Villar
Michael Villar is the founder and CEO of Height, a New York-based project management platform that is trying to hand the tedious parts of running projects over to an AI reasoning engine. He is Belgian, was selling forum skins at 14, sold his previous startup Kickoff to Stripe in 2013, spent years designing and coding early Stripe products, and now runs Height as a lean team with a Series A behind it.
Tanguy Chau
Tanguy Chau is the Co-Founder and CEO of Paxton AI, a Palo Alto-based legal tech company building an AI-powered assistant for lawyers. A Belgian-born, MIT-trained chemical engineer who competed for Belgium in sailing and chemistry olympiads, Chau spent seven years as a venture capitalist at Formation 8 and Mayfield Fund before co-founding Paxton in 2022. Under his leadership, Paxton raised a $22M Series A in January 2025 (total $28M), achieved a 94% non-hallucination rate on the Stanford Legal Hallucination Benchmark, and grew 14x in monthly recurring revenue over nine months - serving clients from solo practitioners to the nation's 20 largest law firms.