< The 2017 Tech 40

34. Steven O'Hanlon
President and Chief Executive Officer
Numerix
Last year: 34

Numerix 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.

 
The 2017 Tech 40

1. Adena Friedman NASDAQ 2. Catherine Bessant Bank of America Corp. 3. Robert Goldstein BlackRock 4. Jeffrey Sprecher Intercontinental Exchange Robeco Fundamental Equities: High-conviction Strategies to Target Alpha Sponsored by Robeco July 8, 2025 5. Lance Uggla IHS Markit

6. Shawn Edwards & Vlad Kliatchko Bloomberg 7. David Craig Thomson Reuters 8. Michael Spencer NEX Group 9. Don Callahan Citigroup 10. Elisha Wiesel Goldman Sachs Group

11. Michael Bodson Depository Trust & Clearing Corp. 12. Terrence Duffy CME Group 13. Charles Li Hong Kong Exchanges and Clearing 14. Sean Belka Fidelity Investments 15. Chris Concannon CBOE Holdings

16. Guy Chiarello First Data Corp. 17. Steven Lieblich Citadel 18. David Rutter R3CEV 19. Blythe Masters Digital Asset Holdings 20. Alfred Spector Two Sigma Investments

21. Neil Katz D.E. Shaw Group 22. Lee Olesky Tradeweb Markets 23. Richard McVey MarketAxess Holdings 24. David Gledhill DBS Bank 25. Seth Merrin Liquidnet Holdings

26. Antoine Shagoury State Street Corp. 27. Peter Brown & Robert Mercer Renaissance Technologies 28. Lou Eccleston TMX Group 29. Peter Cherecwich Northern Trust Corp. 30. Mike Chinn S&P Global Market Intelligence

31. Chris Corrado London Stock Exchange Group 32. Neal Pawar AQR Capital Management 33. Gary Norcross Fidelity National Information Services 34. Steven O'Hanlon Numerix 35. Sebastián Ceria Axioma

36. Brian Conlon First Derivatives and Kx Systems 37. Tyler Kim MaplesFS 38. Michael Cooper BT Radianz 39. Robert Schifellite Broadridge Financial Solutions 40. Jim Minnick eVestment