Pinecone ranks #4 in Search & Vector Databases AI search.

Pinecone is a fully managed, cloud-native vector database founded in 2019 and headquartered in San Francisco. It enables engineering teams of all sizes to build accurate, high-performance AI applications—including RAG pipelines, semantic search, recommendations, and agentic systems—by providing purpose-built infrastructure for storing, indexing, and querying high-dimensional vector embeddings at scale. Pinecone's serverless architecture automatically scales compute and storage independently, charging only for usage, and is available across AWS, Azure, and Google Cloud. The platform includes integrated embedding and reranking inference, hybrid dense-sparse search, multitenancy via namespaces, and an AI Assistant API. It serves more than 5,000 customers ranging from startups to Fortune 500 enterprises and has raised $138M in funding.