Overall, 9.2 percent of e-commerce sales is due to mobile users, up from 5.4 percent in 2011, according to Internet Retailer.
A report released Sept. 26 by Javelin Strategy & Research also forecast mobile sales would surpass $20 billion this year.
According to Internet Retailer, companies in the Mobile 400 — the 400 largest e-retailers, ticketers and travel companies based on their mobile sales —will see sales of $10.85 billion this year. eBay is not included in the Mobile 400 as it is a “retail platform” rather than a “retailer,” the report states.
Excluding eBay, the Mobile 400 will make up 52 percent of U.S. m-commerce sales in 2012 — the same number as last year.
The top 10 Mobile 400 retailers alone will be responsible for 39.3 percent — $8.19 billion — of m-commerce sales.
Amazon, which is at the top of the Mobile 400, is projected to reach $4 billion in U.S. mobile sales in 2012. Apple is second at $1.17 billion.
Rounding out the top 10 are: Marriott International Inc.; Orbitz LLC; QVC; Wal-Mart Stores Inc.; Hilton Worldwide; easyJet; InterContinental Hotels & Resorts; and Expedia.