A Krankenkasse is a public health insurance company.
Krankenkassen are non-profit funds. They are not run by the government. There are dozens of them, but their price and coverage are almost the same.1 The biggest Krankenkassen are Techniker Krankenkasse, AOK and Barmer.
How to choose health insurance
Sources and footnotes
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gkv-spitzenverband.de (November 2025), health insurance calculator ⤴