In last few years, e commerce in the South Asian region has grown at a phenomenal rate. The e-commerce boom is resulting in a sudden explosion of interest in the sector. In addition to the numerous local e-commerce sites, many bricks and mortar companies are jumping on the bandwagon as well. A majority of such traditional brick and mortar companies have not even had a company website until now, and e-commerce will truly be their first taste of what the world of Internet and e-commerce can offer. In this article, we would be analyzing the leading e-commerce companies in Sri Lanka that are having a huge impact in shaping the retail business on the internet.