LangChain
The platform for building reliable AI agents and LLM applications.
About
LangChain provides a comprehensive platform for building, deploying, and managing reliable AI agents and Large Language Model (LLM) applications. Its product suite includes LangGraph for controllable agent orchestration and long-running workflows, LangChain for integrating various models, databases, and LangSmith for observability and evaluation.
Funding rounds
| Date | Round | Amount | Post-money | Lead investors |
|---|---|---|---|---|
| 21 Oct 2025 | Undisclosed round | Undisclosed | $1K | - |
| 20 Oct 2025 | Series A | $125M | - | Greylock, Sequoia |
| 9 Jul 2025 | Series B | $100M | $1.1B | IVP |
| 1 Feb 2024 | Series A | $25M | $200M | Sequoia Capital |
| 1 Apr 2023 | Seed | $10M | - | Benchmark Capital |
Frequently asked
What does LangChain do?
LangChain is an Agentic AI company that offers Platform. Its business model is B2B. It is based in San Francisco, United States and was founded in 2022. Public records show about 312 people and $260M raised.
How much funding has LangChain raised?
LangChain has raised a total of $260M in funding.
Where is LangChain headquartered?
LangChain is headquartered in San Francisco, United States.
When was LangChain founded?
LangChain was founded in 2022.
What industry does LangChain operate in?
LangChain operates in Agentic AI, AI Agent, Foundation Model, Large Language Model, Developer Tools.
How many employees does LangChain have?
LangChain has approximately 312 people on record.
Tech stack
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- Analytics
- Google Tag Manager, Plausible
- CMS / Builders
- Webflow
- CDN
- Cloudflare
- Email provider
- Google Workspace
- Email marketing
- Mailchimp
GitHub Copilot
LangChain and GitHub Copilot both offer tools for developers to build and deploy AI agents and LLM applications, with LangChain providing a comprehensive platform and GitHub Copilot focusing on AI-powered code generation and assistance with
Vertex AI Agent Builder
LangChain and Google's Vertex AI Agent Builder both provide platforms for developing and deploying AI agents and LLM applications, with Vertex AI Agent Builder being a key offering within the Google Cloud ecosystem.
Amazon Bedrock AgentCore
LangChain and Amazon Bedrock AgentCore both offer platforms for building and operating AI agents, with Amazon Bedrock AgentCore providing runtime services for secure tool access, memory, and policy enforcement within the AWS ecosystem.
IBM watsonx.ai
LangChain and IBM watsonx.ai both provide frameworks and tools for developing, deploying, and managing AI agents and LLM solutions, with watsonx.ai offering a comprehensive platform for scaling AI solutions from experimentation to productio
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