On his first day in investment banking, Clayton Kossl was “thrown right into the cauldron.” With few senior professionals in the small aerospace and defense group, junior bankers like him were expected to face company owners directly. “You had to understand the businesses inside and out,” he tells us. The experience forced him to blend analytical depth with the interpersonal agility needed to earn trust in every room.

That mix of skills—numbers and nuance—became a through line in Kossl’s career. At ZocDoc, he joined a Strategic Finance team that partnered closely with the CEO and CFO, taking ownership of decisions that rippled across the fast-growing health-tech firm. The role taught him that financial modeling and relationship-building could coexist—and that influence often came from understanding how leaders think, not just how spreadsheets add up.

Later, when Kossl joined Paintzen as one of roughly a dozen employees, those lessons proved vital. He rebuilt systems from scratch, partnered daily with the CEO and COO, and touched nearly every function of the business. “Someone had to do it,” he recalls. His ability to translate operational chaos into financial clarity helped guide Paintzen through its expansion and eventual sale to PPG Industries.

Across these chapters, Kossl’s story reveals a consistent pattern: using strategy to tell better stories. Whether advising founders or steering finance in ad-tech today, he views storytelling not as spin, but as structure—the way finance can make complexity understandable and transformation achievable.

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