Magento Enterprise Edition is a eCommerce platform that can scale to support the largest of online stores. Owned by Adobe.
http://www.magentocommerce.com/product/enterprise-edition
eCommerce · Enterprise
Get access to data on 37,500 websites that are Magento Enterprise Customers. We know of 4,652 live websites using Magento Enterprise and an additional 32,848 sites that used Magento Enterprise historically and 2,323 websites in the United States.
Get a list of 37,500 websites using Magento Enterprise which includes location information, hosting data, contact details, 4,652 currently live websites and an additional 36,662 domains that redirect to sites in this list. 32,848 sites that used this technology previously and 2,323 websites in the United States currently using Magento Enterprise.