deepset

Berlin-based deepset is the company behind Haystack, a widely used open-source framework for building production AI applications such as semantic search and retrieval-augmented generation.

Alongside the open-source project, it sells an enterprise platform that helps teams design, deploy and manage AI pipelines reliably. Its dual model - open-source community plus commercial product - has made it a fixture of the European NLP ecosystem.

It targets developers who need to move from prototype to production with confidence.