Weaviate
Open-source vector database from Amsterdam with built-in vectorization and hybrid search. Self-host it or run Weaviate Cloud – a European alternative to Pinecone.
Quick facts
Built-in vectorization means you don't need to run a separate embedding pipeline before search works, and hybrid search combines keyword and semantic results out of the box.
The learning curve is steeper than a simple key-value database, and running it well at scale still takes real infrastructure know-how.
Why does it score 87?
Incorporated in Amsterdam, Netherlands – a full EU member state.
Venture-backed by investors including Index Ventures, but no single non-EU company holds a controlling stake.
Weaviate runs its own infrastructure in the Netherlands, and the open-source version can be self-hosted anywhere.
Fully open source (BSD) and GDPR-compliant – the code is fully auditable rather than a black box.
See how they compare
WeaviateWhat does it replace?
Pinecone More European Databases alternatives
Open-source vector database built in Rust for high-performance similarity search. Self-host it or use Qdrant Cloud with EU regions – a European alternative to Pinecone.
Fully managed open-source databases – PostgreSQL, MySQL, Kafka, OpenSearch, and more – deployable in the region and cloud of your choice, including the EU.