united internet ag is a global internet services company headquartered in montabaur, rhineland-palatinate, germany.[2] the company is structured in two business areas, access and applications and contains a total of 13 brands and numerous subsidiaries. it is the parent company of 2 major email providers (gmx and mail.com) and with the brand 11 and its 2.91 million dsl customer contracts, it owns leading isp in germany.[3]