United Internet with successful first half-year 2025

• Customer contracts: + 290,000 to 29.31 million contracts
• Sales: + 4.3% to EUR 3.232 billion
• EBITDA: + 2.0% to EUR 675.6 million, despite EUR -19.6 million higher start-up costs for 1&1 mobile network (compared to H1 2024)
• Guidance 2025 confirmed

Montabaur, August 7, 2025. United Internet AG can look back on a successful first six months. In the first half of 2025, the Company made further investments in new customer contracts and the development of existing customer relationships, and thus in sustainable growth. All in all, the number of fee-based customer contracts was raised by 290,000 contracts to 29.31 million. Of this total, 140,000 fee-based contracts were added in the Consumer Applications segment and 210,000 contracts in the Business Applications segment. The number of contracts in the Consumer Access segment fell by 60,000 broadband contracts.

Adjusted for the sales contribution of the “Energy” business field, which is to be sold, sales in the first six months of 2025 grew by 4.3% to EUR 3,231.7 million (comparable prior-year figure: EUR 3,099.9 million).

Despite a further year-on-year increase in expenses for the 1&1 mobile network, adjusted EBITDA rose by 2.0% to EUR 675.6 million (comparable prior-year figure: EUR 662.3 million). The start-up costs for the 1&1 mobile network included in this figure amounted to EUR -130.6 million, compared to EUR -111.0 million in the same period last year.

In addition to network rollout costs, adjusted EBIT was also burdened by increased depreciation of EUR -296.9 million (prior year: EUR -257.9 million ) resulting in particular from investments in the expansion of 1&1 Versatel’s fiber-optic network and 1&1’s mobile network. As a result, EBIT amounted to EUR 317.8 million (comparable prior-year figure: EUR 347.4 million).

Operating earnings per share (EPS) decreased from EUR 0.61 to EUR 0.59.

Cash capex in the first six months of 2025 amounted to EUR 297.0 million (prior year: EUR 284.4 million).

Outlook 2025

On completion of the first six months, United Internet AG confirms its full-year guidance for 2025. Without consideration of the “Energy” business field, which is to be sold, the Company expects an increase in consolidated sales to approx. EUR 6.45 billion (comparable prior-year figure: EUR 6.303 billion) and in EBITDA to approx. EUR 1.35 billion (comparable prior-year figure: EUR 1.295 billion). Cash capex is still likely to be around EUR 800 million (prior year: EUR 774.6 million).

About United Internet

With over 29 million fee-based customer contracts and around 39 million ad-financed free accounts, United Internet AG is a leading European internet specialist. At the heart of United Internet is a high-performance “Internet Factory” with around 10,800 employees. In addition to the high sales strength of its established brands (such as 1&1, GMX, WEB.DE, IONOS, STRATO, and 1&1 Versatel), United Internet stands for outstanding operational excellence.

Contact partner

United Internet AG

Lisa Pleiß

Phone +49 2602 96-1616

presse@united-internet.de

Note

In the interests of clear and transparent reporting, the annual financial statements and interim statements of United Internet AG, as well as its ad-hoc announcements pursuant to Art. 17 MAR, contain additional financial performance indicators to those required under International Financial Reporting Standards (IFRS), such as EBITDA, EBITDA margin, EBIT, EBIT margin and free cash flow. Information on the use, definition and calculation of these performance measures is provided in the Annual Report 2024 of United Internet AG on page 57.