iovation - iovation offers device-based solutions for fraud prevention and authentication.
WooCommerce - A freely available eCommerce plugin that enables shop facilities on your WordPress website. Functionality enabling extensions & beautiful themes available.
MaxMind - Determine the geographical location of website visitors based on the IP addresses for fraud detection, content localization, geo-targeting.
PrestaShop - Create your online store with PrestaShop's free shopping cart software. Build an ecommerce website for free and start selling online with hundreds of powerful features.
Kount - eCommerce fraud detection & prevention
Shopify - Shopify is a powerful ecommerce platform that includes everything you need to create an online store and sell online. Try it free for 14 days.