United States:
NASDAQ OMX --- Merged with American Stock Exchange. Profile and statistical information: NASDAQ OMX
NYSE --- NYSE Euronext (NYX) is the holding company and the first cross-border exchange group created by the combination of NYSE Group, Inc. and Euronext N.V., on April 4, 2007. Incorporates Amsterdam Stock Exchange, Brussels Stock Exchange, Lisbon Stock Exchange and London International Financial Futures and Options Exchange (LIFFE). Profile and statistical information: NYSE Euronext
Euronext --- European Equities. A leading global operator of financial markets and provider of innovative trading technologies
CME Group --- CME, CBOT, NYMEX, COMEX and KCBT, CME Group serves the risk management needs of customers around the globe. Profile and statistical information: CME Group
CBOE Holdings, Inc. --- Chicago Board Options Exchange (CBOE) & C2 Options Exchange (C2). Profile and statistical information: CBOE Holdings, Inc.
Chicago Mercantile Exchange --- The CME Group Product Slate provides access to most of our products. The searchable and sortable slate links to product contract specifications and also provides the previous day’s volume and open interest data.
Nasdaq --- Access to the latest investing tools and commentary to help with investment decisions.
World Federation of Exchanges --- is a trade association of 57 publicly regulated stock, futures and options exchanges.
WFE annual survey of global markets --- reports that while the global market capitalization increased 15.1% in 2012 , the volume of all products traded on WFE member exchanges fell significantly.
WFE worldwide statistics 
--- download the report compiled by the WFE highlighting the value of Electronic Order Book (EOB) share trading. According to the WFE figures, which are gathered from WFE member exchanges, the number of listed companies remained stable in 2012, while both ETFs and securities derivatives increased their listings.