LangChain is a privately held company tracked for investment-relevant business and technology developments.
This slot renders the company's funding history: dates, rounds, amounts, valuations and lead investors once populated in data/funding-rounds.json.
Harrison Chase argues that owning the agent harness — the orchestration layer connecting models, context, and tools — is essential for compounding AI intelligence, and demonstrates LangChain's full stack: base harness (LangChain), customizable harness (Deep Agents), eval platform (LangSmith), and automated improvement agent (LangSmith Engine).