Zendesk
🇺🇸
non-EU
Support tickets as a subscription.
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Zammad
German open-source helpdesk; self-host or use the EU cloud.
🇩🇪
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OTRS
Long-established German service-management platform.
🇩🇪
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Userlike
Cologne live chat and messaging built for GDPR compliance.
🇩🇪
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Crisp
Nantes-built customer messaging with a generous free plan.
🇫🇷