Apteon, Magento,
Shoper, Shopify and others

According to Internet Retailer's 2016 report, Magento merchants are growing sales 3X faster than IR's Top 1000 e-commerce merchants. We often choose Magento, as it is a very solid platform. Its biggest advantage is a free license, plus it offers a high level of business security, numerous ready to use modules and integrations with external systems.