Name: AT&T
Founded: 1885 (AT&T Company)
1983 (split)
Industry:  American multinational telecommunications conglomerate. The world's largest telecommunications company and one of the largest media conglomerates. Is the largest provider of both local and long distance telephone service in the United States, and the second largest cellular operator in the United States. The largest provider of live satellite broadcasting in the United States through DirecTV.
Revenue: $179 billion
Founder: Alexander Graham Bell