< The 2015 Tech 50: Racers to the Edge

In 1998, Tradeweb Markets was operating a first-of-its-kind multidealer electronic marketplace for U.S. Treasury securities. The upstart then is an established, multiproduct heavyweight now, with “800 employees focused entirely on fixed-income and derivatives trading — no one else has that,” boasts Lee Olesky. A member of the Credit Suisse First Boston team that developed Tradeweb in the 1990s, the 53-year-old has been CEO since 2008, and it is, as ever, a growth company. Diversifying its original client-to-dealer business, now spanning more than 50 countries, New York–based Tradeweb, majority-owned by Thomson Reuters, has expanded into interdealer and municipal bond brokerage and is serving the financial advisory marketplace through Tradeweb Direct. It has also parlayed its over-the-counter expertise to become a leader in swap execution facilities, operating the DW SEF anonymous trading platform and TW SEF for disclosed transactions. The latter’s notional volume of $5 trillion since March 2014 is significant compared with Tradeweb’s $16 trillion total since launching derivatives trading in 2005. “We have a 50 percent market share,” notes Olesky, who was CEO of BrokerTec Europe, now part of ICAP (see Michael Spencer, No. 13), before moving to Tradeweb as its London-based president in 2002. Tradeweb draws on “years of experience to design what our customers want to use, and our extended network of relationships gives us a huge advantage.” His latest target is corporate bonds, the stronghold of MarketAxess Holdings (see Richard McVey, No. 22). “We’re not new to the credit space as a global company, but we are new in the U.S.,” Olesky says. “We have very high aspirations but recognize fully that this is a multiyear process to build out our franchise.”

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The 2015 Tech 50

1. Jeffrey Sprecher Intercontinental Exchange 2. Catherine Bessant Bank of America Corp. Sponsored II Communities on Alternative Investments Sponsored by Fidelity Investments October 16, 2025 3. Phupinder Gill CME Group 4. Lance Uggla Markit 5. Robert Goldstein BlackRock

6. Shawn Edwards & Vlad Kliatchko Bloomberg 7. R. Martin Chavez Goldman Sachs Group 8. Deborah Hopkins Citi Ventures 9. Stephen Neff Fidelity Investments 10. Adena Friedman Nasdaq OMX Group

11. David Craig Thomson Reuters 12. Daniel Coleman KCG Holdings 13. Michael Spencer ICAP 14. Michael Bodson Depository Trust & Clearing Corp. 15. Charles Li Hong Kong Exchanges and Clearing

16. Chris Concannon BATS Global Markets 17. Christopher Perretta State Street Corp. 18. Antoine Shagoury London Stock Exchange Group 19. Kevin Rhein Wells Fargo & Co. 20. Neil Katz D.E. Shaw & Co.

21. Lee Olesky Tradeweb Markets 22. Richard McVey MarketAxess Holdings 23. Seth Merrin Liquidnet Holdings 24. Robert Alexander Capital One Financial Corp. 25. Frank Bisignano First Data Corp.

26. John Marcante Vanguard Group 27. Joseph Squeri Citadel 28. Lou Eccleston TMX Group 29. Claude Honegger Credit Suisse 30. Chris Corrado MSCI

31. David Gledhill DBS Bank 32. John Bates Software AG 33. Michael Cooper BT Radianz 34. Gary Scholten Principal Financial Group 35. Sunil Hirani trueEX Group

36. Hauke Stars Deutsche BÖrse 37. Brian Conlon First Derivatives 38. Jim Minnick eVestment 39. Lars Seier Christensen & Kim Fournais 40. Tyler Kim MaplesFS

41. Jim McGuire Charles Schwab Corp. 42. Steven O'Hanlon Numerix 43. Sebastián Ceria Axioma 44. Yasuki Okai NRI Holdings America 45. Stephane Dubois Xignite

46. Mazy Dar OpenFin 47. Brian Sentance Xenomorph Software 48. Mas Nakachi OpenGamma 49. John Lehner BNY Mellon Technology Solutions Group 50. Jock Percy Perseus