34. Steven O'HanlonPresident and Chief Executive OfficerNumerixLast year: 34Numerix was founded in 1996 as a provider of derivatives pricing and analytics — services that could make for a decent niche business today. The company, which now also offers a trading platform and risk management toolkit, has grown well beyond its roots in a makeover by president and chief executive officer Steven O'Hanlon. He arrived as global head of sales in 2002 from the worlds of enterprise software and startups, rising to president and chief operating officer in 2004 and CEO in 2013. O'Hanlon, 59, oversaw a complete technology overhaul that positioned Numerix for a jump in demand for derivative valuations and analytics around the 2008 financial crisis. In March the company said it bought real-time systems software provider TFG Financial Systems and planned to combine its capabilities with the Numerix Oneview Enterprise Platform to create "the only independent provider of real-time trading and risk with a single source of data and analytics for front- and middle-office risk." Outside of some big investment banks, systems with real-time views of risk have been elusive. "Numerix is providing technology akin to what firms like Goldman Sachs and JPMorgan are providing, while remaining independent and unbiased," O'Hanlon says.
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