Tribe runs on servers with "EU-U.S. and Swiss-U.S. Privacy Shield Certification". We currently do not offer hostings in EU but our data center for European clients is running on NYC1 region of DigitalOcean7.
DigitalOcean is an active participate in and comply with the EU-U.S. and Swiss-U.S. Privacy Shield Frameworks as set forth by the U.S. Department of Commerce and the European Commission. The framework provides DigitalOcean a mechanism to comply with data protection requirements when transferring personal data from the European Union and Switzerland to the United States.
Here's more about Tribe GDPR compliance6.