Some customers ...    
Goldman Sachs Rand Merchant Bank
Morgan Stanley DekaBank
Merrill Lynch Landesbank Baden-Württemberg
JPMorgan Concordia Advisors LLP
NYSE/Euronext Connor, Clark & Lunn Financial Group
Deutsche Bank RBC Capital Markets
Dresdner Kleinwort Thomas Weisel Partners
Fidelity Investments GSA Capital
CIBC World Markets Total Gas&Power UK
HypoVereinsbank (HVB) US Army
Zurich Financial Group 1010data
      ...