About us
We build Thero so AI stays in the house.
Syntriq is a small team from Cologne. We build an AI assistant for companies that keep their data in Germany and take their permissions seriously.
- 19
- Connectors
- 300+
- AI tools
- 100 %
- EU inference
- 2
- Founders
The starting point
Many companies in Germany want to use AI. Most tools charge a price for it: data leaves European jurisdiction, and internal access rights suddenly no longer apply in the chat. Anyone who may not open a file still gets it summarised by the assistant.
We consider both avoidable. That is why we build Thero: an assistant that runs in German data centres, uses language models exclusively in the EU, and mirrors the permissions of your source systems.
How many AI tools work
- Data travels to US subprocessors
- Access rights stop at the chat surface
- Actions run without asking back
How Thero works
- Dedicated instance in Germany, inference in the EU only
- Permissions reach into every answer
- The irreversible waits for human approval
What we build
Thero connects your knowledge sources to an assistant that backs up its answers and executes tasks only after approval. Every image comes from the running application.
Operated in Germany
Every customer gets a dedicated instance in data centres in Frankfurt and Hamburg. AI processing happens exclusively in the EU, with contractually agreed zero retention.
Learn morePermissions stay in force
Thero mirrors the access rights of your source systems. Every user only sees what they would be allowed to see there.
Learn moreApproval before execution
Before Thero does anything irreversible, it asks. Emails via Outlook or Gmail also only go out after your approval.
Learn moreKnowledge with sources
19 connectors attach your knowledge sources, from SharePoint to Confluence. Research mode answers with numbered sources so you can verify every statement.
Learn moreThree rules we build by
Only claim what we can back
This website carries no certification badge without an audit report and no customer count without customers. What we cannot back, we do not write.
Permissions are the boundary
An AI that bypasses access rights is not a feature to us, it is a security incident. The permission filter applies during retrieval itself, not on the result.
People decide the irreversible
An email that goes out is out. So before every irreversible action, Thero shows what would happen and waits for approval.
Where everything runs
Based in Cologne
Syntriq GmbH, registered at the Cologne local court (HRB 126391).
Data centres in Frankfurt and Hamburg
Every customer gets their own isolated instance there.
AI processing in the EU
Language models run with partners in Germany and Finland, with contractual zero retention.
Where we stand
Syntriq is a GmbH based in Cologne. Behind the product is a small founding team that develops and operates Thero itself. That is why you will find no customer logos and no stock team photos on this page. What does exist: a working product we are happy to show you in person.
The people behind it

Patrick Rosenboom
CEO
Leads Syntriq as managing director and usually answers demo requests faster than the AI does. On the blog he writes about shadow AI and how knowledge stays in-house.
On LinkedIn
Thies Jensen
CTO
Responsible for the technology behind Thero and taught the AI to ask permission before every email. Clicks “decline” in testing more often than he would like.
On LinkedInWe write it down
All articlesNo Answer Means No: Why Our AI Never Sends an Email Without Approval
One Policy That Applies Everywhere: How We Made More Than 300 AI Tools Governable
From Question to Cited Report: How Our Research Mode Works
Contact
At Syntriq, the founding team replies itself. Write to us or book a demo directly.
Syntriq GmbH · Frankfurter Str. 148 · 51147 Köln · Careers at Syntriq