
Weaviate is an AI-native, open-source vector database designed for a new generation of software applications. It empowers developers to build and scale AI applications by enabling intuitive AI-native functionalities. Key products include Weaviate Agents (Query Agent, Transformation Agent, Personalization Agent), and its core Vector Database. Weaviate supports hybrid search by merging vector and keyword techniques for precise results, and Retrieval-Augmented Generation (RAG) for building trustworthy generative AI applications using user data. It is cloud, model, and deployment agnostic, offering flexible cost-performance optimization and robust developer community resources. With over 1 million monthly downloads, Weaviate is a core component of the AI-native stack, facilitating lightning-fast pure vector similarity search.

Weaviate is an AI-native, open-source vector database designed for a new generation of software applications. It empowers developers to build and scale AI applications by enabling intuitive AI-native functionalities. Key products include Weaviate Agents (Query Agent, Transformation Agent, Personalization Agent), and its core Vector Database. Weaviate supports hybrid search by merging vector and keyword techniques for precise results, and Retrieval-Augmented Generation (RAG) for building trustworthy generative AI applications using user data. It is cloud, model, and deployment agnostic, offering flexible cost-performance optimization and robust developer community resources. With over 1 million monthly downloads, Weaviate is a core component of the AI-native stack, facilitating lightning-fast pure vector similarity search.
What they do: Open-source, AI-native vector database for semantic/hybrid search, RAG, and agentic AI.
Founded: 2019
Founders: Bob van Luijt and Etienne Dilocker
Employees (reported): 127
Total funding (reported): USD 67,700,000
Key investors: Index Ventures, Battery Ventures, New Enterprise Associates (NEA)
Semantic search, retrieval-augmented generation, and agentic AI workflows requiring scalable vector storage and hybrid search.
2019
Infrastructure / Developer tools / AI infrastructure
USD 1,200,000
Early seed round reported August 2020.
USD 50,000,000
Reported media coverage of a $50M raise (coverage dated Jan 2024).
Series A announced with participation from Cortical Ventures, Zetta Venture Partners, and ING Ventures.
“Backed by Index Ventures, Battery Ventures, and New Enterprise Associates (NEA) with participation from Cortical Ventures, Zetta Venture Partners, ING Ventures, GTM-fund, Scale Asia Ventures, and angel investor Alex van Leeuwen.”