| Company | Name | Phone |
| American Stock Exchange | Fred Yager | +1 212-306-1000 |
| Atos | Virginia Jeanson, Betrand Labonde | +33-1-55-91-26-32 |
| Australian Stock Exchange | Stephen Mills | +1 212-897-8167 |
| BME Spanish Exchanges | Jaime Sanz | + 34-91-589-14-19 |
| Borsa Italiana | Alexxandro Pavesi | + 39-02-72426-442 |
| Charles Schwab Corp. | Rich Fowler | +1 415-636-9869 |
| Chicago Board of Trade | Debbie Koopman | +1 312-789-8532 |
| Chicago Mercentile Exchange | John Peschier | +1 312-930-8491 |
| Deutsche Börse | Jan Strecker | +49 (0) 69 2 11-1 54 74 |
| E*TRADE Financial Corp. | Adam Townsend | +1 703-236-8719 |
| e-Speed | Jeff Goldflam | +1 212-938-3773 |
| Fiserv Inc. | Leslie Muma, Julie Ladwick | +1 262-879-5000 |
| GFI Group | Chris Ann Casaburri | +1 212-968-4167 |
| Hellenic Exchange | Simos Spyrou | + 30-210-336-6616 |
| Icap | Joanne Goad | +44 (0) 20-7050-7103 |
| IntercontinentalExchange | Kelly Loeffler | +1 770-857-4726 |
| International Securities Exchange | Thomas Gibbons | +1 212-897-8167 |
| International Technology Group | Alicia Curran | +1 212-444-6130 |
| Knight Capital Group | Margaret Wyrwas | +1 201-557-6954 |
| Knight Capital Group | Marge Wyrwas | +1 201-557-6954 |
| Labranche | John Longobardi | +1 212-820-0442 |
| London Stock Exchange | Paul Froud, Lyndai Kennedy | + 44 (0) 20-7797-3322 |
| MarketAxess | Steve Davidson | +1 212-813-6021 |
| New Zealand Exchange | Rowan Macrae | +64 (04) 496 2874 |
| NYSE | Gary Stein | +1 212-656-2183 |
| OMX | Jenny Didong | + 46-8-405-7075 |
| Options Express | Janelle Woodward (IR Outsourced) | +1 312-553-6722 |
| Reuters | Miriam McKay | + 44 (0) 207-542-7057 |
| Securities and Futures Commission Hong Kong | Keith Lui | +852-2842-7746 |
| SEI Investments Co. | Mark Samuels | +1 610-676-2024 |
| SGX | Mr John Gollifer Ms Judy Tan |
+65-62368540 +65-62368229 |
| TD Ameritrade Holding Corp. | Tim Nowell | +1 402-597-8440 |
| The Bisys Group | Amy Conti | +1 973-461-5914 |
| TradeStation | Janette Perez | +1 954-652-7205 |
| Commodity Futures Trading Commission | Walter Lukken | +1 202-418-5014 |