Evidence first
Every entity, relation, graph result, and answer should remain traceable to source evidence.
Company
We build knowledge infrastructure for trustworthy AI.
Leyli.ai is a Hamburg, Germany based company helping organizations turn complex information into structured, evidence-backed knowledge for people, LLMs, GraphRAG systems, and AI agents.
Mission
Make expert knowledge computable, explainable, reusable, and grounded in source evidence.
Why we started
Important knowledge should not stay trapped inside documents.
AI systems increasingly depend on information they cannot explain or verify. Leyli connects documents, terminology, ontologies, graphs, and evidence so organizations can build AI on knowledge they can inspect and trust.
Ontology-aware
Domain vocabularies help reduce ambiguity and make knowledge interoperable and reusable.
Human inspectable
Leyli is designed for expert review, transparency, and practical enterprise governance.
Team
A team shaped around knowledge engineering.
Leyli is built by people passionate about trustworthy AI, knowledge graphs, ontology engineering, product design, biomedical AI, and real-world enterprise value.
Knowledge engineering
Transforming expert information into structured, reusable knowledge.
Trustworthy AI
Building systems that preserve provenance, context, and explainability.
Human-centered product
Making complex knowledge inspectable for domain experts and builders.