Qdrant

Qdrant is a high-performance, open-source vector database and search engine written in Rust, built for speed, memory efficiency, and production reliability. Founded in 2021 by Andrey Vasnetsov and Andre Zayarni and headquartered in Berlin, Qdrant has become one of the fastest-growing open-source projects in the category, surpassing 250 million downloads and 29,000 GitHub stars, with production users including Tripadvisor, HubSpot, OpenTable, Bazaarvoice, and Bosch.

Its Rust core gives it strong price-to-performance, and features such as quantization and on-disk storage keep memory costs low at scale; the company is positioning around "composable" vector search as core production infrastructure. In March 2026 Qdrant raised a $50 million Series B led by AVP, with Bosch Ventures, Spark Capital, Unusual Ventures, and 42CAP, bringing total funding to about $87.8 million.

Choose Qdrant when raw performance, cost efficiency, and self-hosting control matter most.