United Internet Media (UIM) is the media marketer of United Internet AG. The specialist for branding and dialog products offers WEB.DE, GMX and 1&1. With an advertising-relevant reach of 33.8 million unique users per month (source: digital Usage Study by agma (DNA), January 2026), the services are among the most widely used online offerings in Germany. UIM offers its own TGP targeting with around 300 characteristics to address specific target groups. This is based on high-quality first-party data from highly frequented and stable user accounts.
In Germany, WEB.DE and GMX are the leaders in email usage with a market share of more than 50 percent. The intelligent mailbox organizes the growing digital communication between retailers, brands and consumers and thus enables targeted marketing along the customer journey – especially as an offsite extension of retail media campaigns. Addressability solutions allow advertisers and retailers to use their data on UIM inventory. This enables comprehensive targeting outside the websites, apps and stores of advertisers and retailers.
Our Product
One of our highlights is the Inbox Ad Image. You can find all our products here.
Internet Access
Our broadband business with DSL and DSL telephony is an important component for our growth.
Information Management
We offer a wide variety of products in the field of personal Information Management.
Portals
Our portals GMX, WEB.DE and 1&1 are used by some 50% of all German web users.
United Internet Media GmbH
Brauerstraße 48 · D-76135 Karlsruhe
Tel. +49 (0)721-91374-1717
