6000
Frontier Communications is incorporated in Delaware. This is a common practice among many companies due to Delaware's business-friendly laws and established legal framework for corporations.
Approximately 3,200 companies.
How many companies are listed in NASDAQ?
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77 Companies listed http://en.wikipedia.org/wiki/Category:Companies_listed_on_the_Bombay_Stock_Exchange
3,615
257
Around seven hundrends companies as at 2011.
13
50
30
257