Weaviate
“Can an open-source vector database become the default AI infrastructure layer for enterprise search, RAG, and agentic AI workloads?”
HQAmsterdam, Netherlands
Latest roundSeries B, April 2023
Valuation$150M pre-money (Series B, 2023)
IndustryInfrastructure / AI Database
The story
Weaviate began as an open-source vector database project, establishing itself as foundational AI infrastructure for semantic search and RAG pipelines. It transitioned to a cloud-managed SaaS model (Weaviate Cloud) with tiered pricing billed through Stripe, targeting enterprise AI builders. In 2025 the company expanded beyond the core database with agentic AI services, positioning the platform as a full stack for search, RAG, and autonomous AI agents.
Last 12 months
Product timeline
2023
Raised Series B led by Index Ventures at a $150M pre-money valuation, accelerating growth of the open-source vector database.· banking
2025
Launched new pricing model for Weaviate Cloud with Shared Cloud and Dedicated Cloud tiers, billed via Stripe.· pivot
2025
Introduced Weaviate Agents (Query Agent, Transformation Agent, Personalization Agent) as optional AI-powered services on top of the vector database.· pivot
The stack
Accounting gap: none