Martin Varsavsky has never had a job in his life. Not one. He arrived in New York at 26 as an Argentine refugee, convinced a Nobel Prize-winning scientist to build a biotech company with him, and has been founding unicorns ever since — six in total, spanning telecoms, fertility, and now AI medicine. At 66, he has just launched Certuma, the first medical AI company explicitly designed to be FDA-regulated and capable of writing prescriptions. The trigger: an AI correctly diagnosed a condition in his eye, recommended a specific medication, and then said 'I'm not a doctor.' He decided to fix that. In this ICONS episode, Martin covers his entire arc — from the pre-money valuation insight that unlocked entrepreneurship for him, to the meeting with the King of Spain where he said fertility — not nationalism — was the country's greatest threat. He talks about the technology his companies are building to make having children easier, the ethical lines he draws on designer babies, why he believes frozen embryos should be stored as a backup for civilization, and how cycling 14 hours a week at age 66 means he never had to plan for his own decay.

Oskar Hartmann has co-founded 20+ companies, invested in 150 as an angel, found 15 unicorns from seed stage, broke two world indoor rowing records, wrote a million-copy best-seller, and co-founded Accumulator — a financial infrastructure supporting private-company ownership for founders.

In this episode of ICONS, he gives the most unfiltered account of building at scale we’ve ever heard: the €500K liability that nearly destroyed him, the 2013 hospital breakdown, the frameworks of alternating and mini lives that rebuilt hi

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Marc-Alexander Christ, co-founder at SumUp, pulls back the curtain on how a five-founder startup launched simultaneously in Dublin, Berlin, and Bulgaria in 2012 and grew into one of Europe's most formidable fintech companies — serving 4 million merchants across 36 countries at an approximately €8 billion valuation. From the early mistake of hiring 100 salespeople before achieving product-market fit, to the iron discipline of a 12-month payback period that governs every growth decision, to a planned proprietary stablecoin - Marc delivers a rare, unfiltered account of what it actually takes to build payments infrastructure at global scale for small merchants who were almost entirely underserved before SumUp existed.

Marc-Alexander Christ, co-founder and Head of Payments at SumUp, pulls back the curtain on how a five-founder startup launched simultaneously in Dublin, Berlin, and Bulgaria in 2012 and grew into one of Europe's most formidable fintech companies — serving 4 million merchants across 36 countries at an approximately €8 billion valuation. From the early mistake of hiring 100 salespeople before achieving product-market fit, to the iron discipline of a 12-month payback period that governs every growth decision, to a planned proprietary stablecoin — Marc delivers a rare, unfiltered account of what it actually takes to build payments infrastructure at global scale for small merchants who were almost entirely underserved before SumUp existed.

Topics Discussed

In this episode of ICONS, host Roman Kirsch sits down with Tushar Ahluwalia, Co-Founder of Razor Group, to unpack one of the most complex entrepreneurial journeys in e-commerce. Tushar's career spans three continents and three ventures: building India's first major D2C fashion brand (SBL) that reached 100 crores in revenue, creating Razor Group into a $700 million revenue aggregator that acquired 300+ Amazon businesses, and now launching ADA AI to solve supply chain complexity with artificial intelligence. This conversation reveals the operational playbooks, capital strategy, and leadership principles behind building at massive scale—plus the hard-earned lessons from navigating board dynamics, capital stack challenges, and market timing.

In this episode of ICONS, host Roman Kirsch interviews Heini Zachariassen, founder of Vivino and current chairman of the board, who is now building Vota (vota.org), a quality rating system for restaurants. Growing up on the remote Faroe Islands (population 50,000) between Norway and Iceland, Heini developed the entrepreneurial belief that you can walk to parliament and knock on the prime minister's door to create change. This island mindset shaped his approach to building global businesses. Despite knowing nothing about wine, Heini transformed his intimidation at wine store "walls of wine" into the world's largest wine database with over 15 million wines and over 70 million users. Starting as a simple wine scanning app competing against 600 other wine apps, Vivino succeeded by focusing relentlessly on match rate over aesthetics, achieving 70-80% word-of-mouth growth with near-zero marketing spend and reaching a billion-dollar valuation during the 2021 boom. Through surviving the COVID boom-bust cycle and transitioning from community to marketplace, Heini shares hard-won lessons about founder-market fit, data moats, and building sustainable consumer businesses in competitive markets. Today, he remains connected to his Faroe Islands roots, regularly visiting home where they now boast a two-star Michelin restaurant while he builds a whiskey distillery to help diversify the local economy beyond fishing.

In this episode of ICONS, host Roman Kirsch interviews Barbara Martin Coppola, one of the most accomplished global marketing and digital transformation executives of our time. Barbara shares her playbook for scaling iconic brands globally, having led transformations at Samsung Korea, Google/YouTube, IKEA, and Decathlon. Her unique perspective comes from successfully navigating vastly different corporate cultures while maintaining brand consistency and driving exponential growth. From turning IKEA from a digital skeptic into a €12 billion e-commerce powerhouse to scaling YouTube's global expansion through localized community building, Barbara reveals the tactical frameworks that work across cultures and industries.

In this episode of ICONS, host Roman Kirsch interviews Luca Ferrari and Matteo Danieli, founders of Bending Spoons. Operating from Milan, Bending Spoons has evolved from a failed startup into Europe's most sophisticated digital acquisition platform, acquiring and improving dozens of businesses worth over $1.2 billion in revenue. From their first $10,000 acquisition to writing $500 million checks, the founders share how they built a unique culture-driven approach to scaling tech businesses through strategic acquisitions, proprietary technology platforms, and an unconventional talent strategy focused entirely on developing young graduates into business leaders.

In this episode of Icons, host Roman Kirsch interviews Luca Ferrari and Matteo Danieli, founders of Bending Spoons. Operating from Milan, Bending Spoons has evolved from a failed startup into Europe's most sophisticated digital acquisition platform, acquiring and improving dozens of businesses worth over $1.2 billion in revenue. From their first $10,000 acquisition to writing $500 million checks, the founders share how they built a unique culture-driven approach to scaling tech businesses through strategic acquisitions, proprietary technology platforms, and an unconventional talent strategy focused entirely on developing young graduates into business leaders.

In this episode of ICONS, host Roman Kirsch interviews Eric Wahlforss, founder of SoundCloud and Dance. From building one of the world's most influential music platforms to revolutionizing urban mobility through e-bike subscriptions, Eric shares how he's created two category-defining brands across completely different industries. His journey reveals the power of product-first thinking, authentic community building, and leveraging network effects to scale from zero to millions of users. Through SoundCloud's transformation from a simple sharing tool to a cultural phenomenon that launched entire music genres, and Dance's approach to turning mobility hardware into a beloved subscription service, Eric demonstrates how great brands emerge from solving real user pain points with obsessive attention to product quality and customer feedback.