Threema
Threema is a Swiss encrypted messaging app requiring no phone number or email to register, headquartered in Pfäffikon. It is fully anonymous by design, independently audited, and stores minimal metadata — a European alternative to WhatsApp.
Brand Identity Data
HQ Country
Switzerland
HQ City
Pfäffikon
Founded
2012
EU Headquartered
Yes
EU Manufactured
Yes
Ownership Type
private
Stock Exchange
Private
Tax Domicile
CH
Ultimate Parent
Threema GmbH
Data Hosting
CH
CLOUD Act Exposure
No ✓
AI Trains on User Data
no
GDPR Status
compliant
DSA Designation
standard
Carbon Neutral
unknown
B Corp Certified
No
Supply Chain
opaque
Repair / Recycling
No
Ethical Certifications
None verified
Verified on July 22, 2026
Corporate Lineage
2012
Founded
Threema was launched by Manuel Kasper and Silvan Engeler in Switzerland.
2013
Introduction of Android app
Threema expanded its platform availability to the Android operating system.
2016
Open Source Initiative
Threema began open-sourcing its app components to ensure transparency.
2020
Threema Work launch
Expansion of the enterprise messaging solution for business and government sectors.
2022
Threema Open Source complete
The entire app suite became fully open source, verified by independent audits.