LangChain
An open agent platform for building, deploying, and governing AI agents and applications.
LangChain is a developer tools company, founded in 2022. It has raised $300 million in disclosed funding. Its latest round was a Series C of $300 million in November 2026.
Overview
LangChain provides an open agent platform designed to help organizations build, test, deploy, and monitor AI agents. Its primary product suite, LangSmith, enables developers to trace, debug, and evaluate agent behavior throughout the development lifecycle. The company offers tools for building agents using various model providers, alongside infrastructure for long-running tasks, persistent state, and secure execution. LangSmith Fleet allows teams to create and deploy agents using natural language, while other features like LangSmith Engine and LLM Gateway provide capabilities for autonomous failure detection, cost management, and data protection. The platform supports multiple deployment environments, including SaaS, self-hosted, and hybrid configurations. Founded in 2022, LangChain has raised $300 million in funding and is categorized as a Series C+ stage company.
Funding
Total disclosed: $300M across 1 round. Computed only from sourced rounds.
Investors
Questions and answers
What does LangChain do?
An open agent platform for building, deploying, and governing AI agents and applications.
How much has LangChain raised?
LangChain has raised $300 million in disclosed funding across 1 round tracked by OSH.
Who has invested in LangChain?
Investors in LangChain include CapitalG, GIC, DFJ Growth, IVP, and Sapphire Ventures.
When and where was LangChain founded?
LangChain was founded in 2022.
Timeline
Founded
Sources
- 1.AI agent startup LangChain hits $3B valuation — TechCrunch Startups, Nov 13, 2026
- 2.LangChain · Official
- 3.LangChain · Official
- 4.LangChain · Official
- 5.LangChain · Official