WElectronic trading platform
WAlly Financial
WAlpari Group
WAvanza
WBank of America
WBUX (brokerage)
WCapital Index
WCharles Schwab Corporation
WChase Bank
WCitibank International Personal Bank Singapore
WCitibank United Arab Emirates
WCMC Markets
WCredible (company)
WE-Trade
WFinam Holdings
WFinecoBank
WFXOpen
WIG Group
WIntegral Forex
WInteractive Brokers
WInteractive Investor
WMatchbook FX
WMaybank
WMerrill Edge
WMerrill Lynch & Co.
WNordnet
WOCBC Bank
WOTP Bank
WPlus500
WPNC Financial Services
WQuestrade
WSaxo Bank
WScottrade
WStandard Chartered
WTD Ameritrade
WThinkorswim
WU.S. Bancorp
WUSAA
WWachovia
WWells Fargo