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On July 8, 2026, Threema GmbH was converted into Threema AG. Previously, the company operated through two legal entities: Threema GmbH and Threema Holding AG. To simplify the corporate structure, these entities were merged into a single company: Threema AG.

This change has no impact on our users. The company’s headquarters will remain in Switzerland. All contracts and obligations of Threema GmbH have been transferred to Threema AG and will remain unchanged.

New article:
Messenger Interoperability: Well-Intended, but Bad for Data Privacy

WhatsApp has been open to third-party messaging services since fall 2025. Under the EU’s Digital Markets Act (DMA), the platform is required to support interoperability with alternative chat services. While we support the DMA’s underlying goals, we have decided not to implement interoperability with WhatsApp for several reasons.

Two puzzle pieces facing each other that do not fit together on a green background.

Threema Private

May 6, 2021

Why Threema Instead of WhatsApp?

Threema Private

April 26, 2021

Communication Tools for Companies: The Definitive Comparison

Threema Work

April 26, 2021

Communication Tools for Companies: The Definitive Comparison

Instant messaging has become an important part of business communications. Excellent availability, unmatched ease of use, and short response times are just a few of its numerous benefits. There is, however, one major challenge for companies: choosing the right service.