LangChain

San Francisco, USAFounded 2023

LangChain is an agent engineering platform company that provides open-source frameworks and commercial tools for building, observing, evaluating, and deploying AI agents at scale. The company serves over 35% of the Fortune 500 and processes over one billion events daily on its LangSmith platform.

Primary Verticals

Financial Services (BFSI)Healthcare & Life SciencesRetail & E-commerceTelecom & MediaManufacturing

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Agents by LangChain

Deep Agents

LangChain

An agent harness for building autonomous AI agents that plan complex multi-step tasks, manage their own filesystem, and spawn specialized subagents for long-horizon work.

Engineering & DevOps/Financial Services (BFSI)

LangGraph

LangChain

A low-level agent orchestration framework for building stateful, multi-agent AI systems with full control over workflows, memory, and human-in-the-loop oversight.

Engineering & DevOps/Financial Services (BFSI)

LangSmith

LangChain

An all-in-one agent engineering platform that gives teams complete visibility into agent behavior, automated evaluation, managed deployment, and enterprise-wide fleet management.

Engineering & DevOps/Financial Services (BFSI)