Success factors of our business model

United Internet’s business model offers various benefits: the contractual commitment of our customers via fee-based, fixed-term subscriptions (over 29 million customer contracts at year-end 2025) secures long-lasting customer relationships and thus stable and predictable sales and earnings. In addition, our ad-financed free accounts (around 39 million at year-end 2025) provide a large reservoir for monetizing our applications via advertising and e-commerce as well as for conversion to fee-based contracts.

Thanks to our existing business relationships with millions of users, we have our ear close to the market. This often enables us to anticipate customer wishes and trends. We then consistently develop new business fields – at a national and international level.

We have already picked up a number of customer wishes and successfully transformed them into new solutions or new business fields:

• We meet the privacy demands of our customers with a variety of initiatives. Within the “E-mail made in Germany” alliance, for example, e-mails are automatically encrypted. Our modern data centers comply with the strictest security standards with largely geo-redundant operation, i.e., applications and data are constantly mirrored at geographically separate data centers.


• Our mobile internet products and the All-Net-Flat tariff first mass marketed by us in Germany in 2010 reflect the trend toward ever greater mobility in internet usage. A clear tariff structure offering great value for money and excellent service helps us achieve high customer retention rates and customer satisfaction, while securing a top-quality client base in a dynamic market environment.


• From our domestic market in Germany, our cloud and e-business solutions are now being marketed in new target markets as part of our internationalization strategy. As a result, the cultural diversity of our employees is also growing. The resulting potential for new ideas and innovation is strengthening our competitive edge and enhancing our long-term opportunities in future markets.


• Customers of our Business Applications have the opportunity to contact a personal consultant free of charge as a central point of contact for all questions relating to their online business success. In this way, IONOS can accompany companies through all phases of their development – from registering a domain and setting up their first website and shop systems, to dedicated servers and using enterprise cloud infrastructures.


• Trust is the basis for our customer relationships. Data protection, operational reliability, 24/7 availability of our competent contact partners, and 24-hour replacement of defective equipment are all exemplary service promises that customers can rely on at all times.

United Internet covers large areas of the value chain – from product development to data center and network operation, to effective sales and marketing, and active customer support.

Economies of scale represent a further key success factor for our business: each new customer enhances the profitability of our “Internet Factory”. After making the necessary investments, developing the products, and providing them via our data centers and networks, it is then a question of marketing them as effectively as possible. The greater the number of customers using our products, the greater the profit will be.

A further advantage is our marketing strategy tailored to specific target groups. Brands such as GMX, mail.com, WEB.DE, 1&1, sim.de, IONOS , STRATO, home.pl, fasthosts, united-domains, and InterNetX are positioned differently and target a wide variety of user groups.

Last but not least, the exportability of our applications is a further trump card. Our applications can generally be used anywhere in the world and work on the same principle in Frankfurt as they do in London, Paris, or New York.