LangChain has raised $300 million in a Series C round at a $3 billion valuation, the company announced on Friday. CapitalG led the round, which more than doubles the agent software startup’s valuation from about a year ago.
The round brings LangChain’s total funding to $460 million. Its previous round, a $125 million raise about a year ago, valued the company at $1.25 billion. IVP led that round.
Who joined the round
New investors GIC and DFJ Growth joined CapitalG in the Series C, alongside existing investors IVP and Sapphire Ventures. Salesforce Ventures, Insight Venture Partners, QuantumLight and MongoDB Ventures also came in as new investors, while Sequoia, Amplify and Benchmark added to their existing stakes.
LangSmith now serves 7,000 organizations
LangChain will put the money behind LangSmith, its platform for building, running and governing AI agents. More than 7,000 organizations use LangSmith, including Nvidia, Toyota, Salesforce, Workday, Harvey, Rippling and Clay.
Clay uses LangSmith to monitor hundreds of millions of agent runs each month. Workday uses it to run and govern agents across the company, and cut the time to deploy a new agent from five months to under a day.
Runtime, improvement and governance
LangSmith is built around three pillars. Agent Runtime covers the infrastructure for running agents, including Deep Agents, LangGraph and the LangChain framework. Agent Improvement covers testing, observability and evaluation, plus an in-platform agent that finds errors and writes fixes.
Agent Governance covers model and tool gateways, data protection and access control. The company plans to share several new LangSmith capabilities at a special release event on November 20.
From open source project to $3 billion company
LangChain began in late 2022 as an open source project started by Harrison Chase. He teamed up with co-founder Ankush Gola to start the company in early 2023, and the business is based in San Francisco.
The company says it now works with 35 percent of the Fortune 500, has passed 1 billion open source downloads, and processes more than 1 billion events a day on LangSmith.
“Agents are going to transform how companies operate and the products they deliver. The companies that control these systems will build lasting competitive advantages.”
Harrison Chase, Co-Founder and CEO of LangChain
“The transition from experimental LLM applications to production-grade agents is one of the most significant shifts happening in enterprise software today.”
Mo Jomaa, Partner at CapitalG
LangChain says its goal is to let every company own its intelligence, choosing its own models while keeping control of its data and infrastructure. You can follow this year’s AI funding rounds on our funding tracker.
