Apple has been named the most valuable billion-dollar company in the United States by brand identity firm Brand Finance, reports the Silicon Valley Business Journal. The standing was revealed in a new rankings report done by the firm which listed the top 50 billion-dollar brand names in the U.S., as Apple's $104.6 billion valuation was ahead of other technology companies including Google, Microsoft and Verizon which were valued at $68.6 billion, $62.8 billion, and $53.5 billion, respectively. Throughout the past year, a number of other sources have also regarded Apple to be among the wor