100 Fastest-Growing rank: 15 (Previous rank: N.A.)
CEO: Marcos Galperin
Address: Arias 3751 7th Floor, Buenos Aires, Argentina
With more than 53 million registered users, eBay's Latin American partner is the largest e-commerce platform in the region. More than half of its business comes from Brazil. Last year, revenues climbed to $217 million from $172 million -- more than double what it was three years prior. The company also launched MercadoShops, a service that lets users set up, manage and promote their own online stores.
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