Tradetron (U.S.)
Tickblaze LLC (U.S.)
Wyden (U.S.)
TradeStation (U.S.)
InfoReach Inc. (U.S.)
Symphony (U.S.)
ALGOTRADERS (U.S.)
Argo Software Engineering (U.S.)
FXCM Group (U.S.)
Tata Consultancy Services Limited (U.S.)