Oakley Capital has taken a majority stake in Graphwise, the Bulgarian knowledge graph company behind the open-source GraphDB database, in one of the country’s largest software exits.
Financial terms were not disclosed. The deal hands Portfolion Capital Partners, Integral Capital Group, Carpathian Partners and the European Bank for Reconstruction and Development an exit from the consortium that invested in 2022.
The company traces its roots to a 2024 merger that paired Sofia-based Ontotext, a semantic data pioneer dating to 2000, with Vienna’s Semantic Web Company. More than 200 blue-chip customers across finance, pharma and the public sector rely on its software, and organic ARR has climbed over 30% yearly.
The company positions its graph technology as a semantic layer for AI agents, grounding large language models in governed enterprise facts to cut hallucinations and token costs through GraphRAG retrieval.
Oakley founder Peter Dubens says trusted, well-governed data matters more as enterprises push agents into production, and calls Graphwise an exceptional platform with impressive growth. Graphwise president Atanas Kiryakov says Oakley has a track record of turning founder-led software businesses into unicorns.
The new majority owner plans to accelerate international expansion and further acquisitions alongside management.
