Top four U.S. corporations based on brand-value: Apple, Google, Microsoft and Verizon14
Other prominent names in mobile include the $45 billion brand value placed on sixth place AT&T, and the $6.6 billion value of the Sprint brand, which finished number 66. At 115, Qualcomm's brand is worth $4.3 billion according to Brand-Finance, and Motorola Mobility was raked number 219 with a brand value of $2.6 billion.
No surprise that the tech sector makes up a leading 23% of total brand value of $2.5 trillion in the states. Apple is the first company to exceed a $100 billion valuation of its brand.
source: Brand-Finance via SlashGear