Milvus (Zilliz) is a Vector Databases company founded in 2017 and based in San Francisco, United States. It has raised $103M in total funding, most recently a Series B in 2022.
| Date | Stage | Amount | Valuation | Lead investors |
|---|---|---|---|---|
| Aug 24, 2022 | Series B | $60M | — | Prosperity7 Ventures |
| Nov 13, 2020 | Series B | $43M | — | Hillhouse Capital |
| Jan 1, 2018 | Series A | — | — | 5Y Capital |
The world's most widely deployed open-source vector database, originally created at Zilliz and donated to the Linux Foundation AI Foundation. A cloud-native, distributed system separating storage and compute for billion-scale similarity search with support for dense, sparse, and hybrid (sparse + dense) vector search with metadata filtering. Milvus 2.6.x adds JSON path indexing for 100x faster metadata filtering, spatial data types, and INT8 vectors; Milvus 3.0 introduces data lake-style storage architecture.
A fully managed, enterprise-grade vector database service built on Milvus, handling 100B+ entities and 10K+ QPS with consistent sub-10ms latency. Available on AWS, GCP, and Azure with tiered storage delivering 87% storage cost reduction, cross-region backup, and a Business Critical plan for regulated industries. Includes full-text search performing up to 7x faster than Elasticsearch on selected datasets, SOC 2 Type II and ISO 27001 certifications, RBAC, BYOC, and audit logs.