Square Online Store - Build your own online store with Square
Akeneo - Akeneo is an open-source Product Information Management solution.
Swell.is - Customizable, API-first ecommerce platform for innovative brands, startups, and agencies.
Pimcore - Pimcore is an award-winning data management and customer experience management software.
WooCommerce - A freely available eCommerce plugin that enables shop facilities on your WordPress website. Functionality enabling extensions & beautiful themes available.
inRiver - inRiver offers product information management solutions helping B2C and B2B multi-channel commerce tell perfect stories across channels.