< Wall Street's Nerds: The World's Most Powerful Trading Executives

28. Donal Byrne
Chief Executive Officer
Corvil
Last year: 32

As financial markets and technology infrastructure as a whole have gotten bigger, faster, and more complex, Corvil has grown up as a supplier of analytic tools essential to monitoring and safeguarding critical networks. Virtually every major market operator is a customer of Dublin-based Corvil, which reported 50 percent sales growth last year. In October it introduced its latest set of analytic capabilities for transparency, surveillance, and compliance in trading businesses, dubbed machine-time analytics.

Machines are capable of taking actions a million times faster than humans, notes Donal Byrne, 51, the company's CEO since 2002. Streaming analytics are thus required to "act on the time scale of the machines," he says. Cybersecurity requires the same and is another growth area. Last year Corvil partnered with endpoint security company Carbon Black to offer an integrated cyberthreat detection, analysis, and response platform.

 
The 2017 Trading Tech 40

1. Richard Prager BlackRock 2. Chris Isaacson Bats Global Markets Sponsored Is the Market Really Sure About Its Direction? Sponsored by CME Group October 27, 2025 3. Bradley Peterson Nasdaq 4. Brad Levy MarkitSERV 5. Dan Keegan Citi

6. Glenn Lesko Bloomberg Tradebook 7. Bryan Durkin CME Group 8. Mayur Kapani Intercontinental Exchange 9. Mike Blum KCG Holdings 10. Raj Mahajan Goldman Sachs Group

11. Ronald DePoalo Fidelity Institutional 12. Nick Themelis MarketAxess Holdings 13. Jenny Knott NEX Optimisation 14. Billy Hult Tradeweb Markets 15. Rob Park IEX Group

16. Bill Chow & Richard Leung Hong Kong Exchanges and Clearing 17. John Mackay (Mack) Gill MillenniumIT 18. Paul Hamill Citadel Securities 19. Eric Noll Convergex 20. Veronica Augustsson Cinnober Financial Technology

21. Tyler Moeller & Joshua Walsky Broadway Technology 22. Alasdair Haynes Aquis Exchange 23. Gaurav Suri Arcesium 24. Manoj Narang Mana Partners 25. Michael Chin & Neill Penney Thomson Reuters

26. Robert Sloan S3 Partners 27. Anton Katz & Stephen Mock AQR Capital Management 28. Donal Byrne Corvil 29. Stu Taylor Algomi 30. Alfred Eskandar Portware

31. Steven Randich Financial Industry Regulatory Authority 32. R. Cromwell Coulson OTC Markets Group 33. Peter Maragos Dash Financial 34. John Fawcett Quantopian 35. Donald Ross III PDQ Enterprises

36. Jennifer Nayar Vela Trading Technologies 37. Dan Raju Tradier 38. Susan Estes OpenDoor Trading 39. David Mercer LMAX Exchange 40. Oki Matsumoto Monex Group