SR Labs, a Wall Street systems and consulting house founded in 2007, raised its profile with the July 2014 acquisition of Wombat Financial Software from Intercontinental Exchange's NYSE Technologies. Jennifer Nayar, a trading technology veteran who had most recently served as chief of staff at Goldman Sachs Group spin-off (and now Thomson Reuters subsidiary) REDI Holdings, became CEO of SR Labs in June 2015. A year later the high-performance trading and market data systems company was renamed Vela Trading Technologies, symbolic of its mission "to simplify how firms interact with the markets and increase efficiency" and "combining the best of our two historic companies' cultures," Nayar said at the time.
A November announcement of new data feed handlers indicated the geographic and asset class breadth of Vela's activities, ranging from the Australian Securities Exchange (derivatives), to the National Stock Exchange of India and the pan-European Aquis Exchange (equities), to Bats Global Markets' foreign exchange and options platforms. Also in November, Nayar brought on Brian Cassin, formerly of S&P Global and Thomson Financial, and Ollie Cadman from ICE's Interactive Data Corp. as joint heads of product and strategy. They will be "instrumental in helping Vela continue to create, build, and deliver new and innovative trading and market data software products to the global marketplace," Nayar, 49, says. In terms of innovation and experimentation, she says the firm is exploring potential enhancements to its consolidated data feed, along with cloud services and opportunities in "adjacent markets" such as energy.
 2. Chris Isaacson Bats Global Markets  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 |
