Group organization

Corporate culture

In 2026, we further developed our corporate culture into “T-Style.” While this entailed some adaptations to the existing Guiding Principles, our fundamental values as a company remain unchanged. Our six Guiding Principles are:

• Delight our customers

• We won’t stop (previously: Get things done)

• Act with respect & integrity

• One team, together (previously: Team together – team apart)

• I am T – count on me

• Stay curious and grow

Segment structure

Reassignment of Comfortcharge. As of January 1, 2026, Deutsche Telekom reassigned the responsibility for business and profit and loss for Comfortcharge GmbH, which is a provider of e-mobility charging infrastructure, from the Group Development operating segment to the Group Headquarters & Group Services segment. This restructuring will bundle Deutsche Telekomʼs mobility services. Prior-year comparatives have not been adjusted retrospectively for either of the segments affected.

Planned changes in the United States operating segment

Agreement on the acquisition of i3 Broadband. On April 24, 2026, T‑Mobile US entered into an agreement with an affiliate of Wren House to establish a joint venture that will acquire i3 Broadband, one of Wren House’s existing fiber portfolio companies. The transaction is subject to regulatory approvals as well as other customary closing conditions and is expected to be concluded in the second half of 2026. Upon closing, T‑Mobile US is expected to invest USD 0.7 billion (EUR 0.6 billion) to acquire a 50 % equity interest in the joint venture and substantially all existing residential fiber customers.

Agreements on the acquisition of GoNetspeed and Greenlight Networks. On April 25, 2026, T‑Mobile US entered into agreements with affiliates of Oak Hill to establish a joint venture that will acquire and combine GoNetspeed and Greenlight Networks, two of Oak Hill’s existing fiber portfolio companies. The transaction is subject to regulatory approvals as well as other customary closing conditions and is expected to be concluded in the first half of 2027. Upon closing, T‑Mobile US is expected to invest USD 2.0 billion (EUR 1.8 billion) to acquire a 50 % equity interest in the joint venture and substantially all existing residential fiber customers.

Joint venture with AT&T and Verizon. On May 14, 2026, T‑Mobile US announced that it had agreed in principle to form a joint venture with AT&T and Verizon. The joint venture is expected to address coverage gaps and improve connectivity in underserved communities in rural areas of the United States, especially by pooling certain spectrum resources of the three partners, and help satellite providers reach more customers through a unified platform. The joint venture remains subject to negotiating definitive agreements between the parties and, if finalized, would be subject to regulatory approvals and certain customary closing conditions. At closing, in exchange for an equity interest in the joint venture, T‑Mobile US expects to invest cash and license certain intellectual property to the joint venture, and will also commit to provide access to certain spectrum licenses to satellite service providers who contract with the joint venture.