4. Amazon.com, Inc. (NASDAQ:AMZN)
Amazon.com, Inc. (NASDAQ:AMZN) is a leading e-retailer in the United States and managed to become a prominent international e-commerce player in 23 years of its existence. Amazon has expanded its global reach especially in the Indian subcontinent with India being the largest international market for the company. Amazon has separate retail websites for the United States, the United Kingdom and Ireland, France, Canada, Germany, Italy, Spain, Netherlands, Australia, Brazil, Japan, China, India, and Mexico. Today Amazon.in is the most visited website in India. The company posted third-quarter revenues of $ 32.71 billion, out of which North America sales accounted for $18.87 billion while international sales came in at $10.61 billion. In 2015, North America accounted for 59.5% of the total revenues.